AHCI RESEARCH GROUP
Publications
Papers published in international journals,
proceedings of conferences, workshops and books.
OUR RESEARCH
Scientific Publications
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You can expand the Abstract, Links and BibTex record for each paper.
2009
Gentile, Antonio; Santangelo, Antonella; Sorce, Salvatore; Augello, Agnese; Pilato, Giovanni; Genco, Alessandro; Gaglio, Salvatore
IGI Global, 2009, ISBN: 978-1-60566-978-6.
Abstract | Links | BibTeX | Tags: Cultural heritage, Multimodal Interaction
@book{gentileExploitingMultimodalityIntelligent2009,
title = {Exploiting Multimodality for Intelligent Mobile Access to Pervasive Services in Cultural Heritage Sites},
author = { Antonio Gentile and Antonella Santangelo and Salvatore Sorce and Agnese Augello and Giovanni Pilato and Alessandro Genco and Salvatore Gaglio},
doi = {10.4018/978-1-60566-978-6.ch009},
isbn = {978-1-60566-978-6},
year = {2009},
date = {2009-01-01},
publisher = {IGI Global},
abstract = {In this chapter the role of multimodality in intelligent, mobile guides for cultural heritage environments is discussed. Multimodal access to information contents enables the creation of systems with a higher degree of accessibility and usability. A multimodal interaction may involve several human interaction modes, such as sight, touch and voice to navigate contents, or gestures to activate controls. We first start our discussion by presenting a timeline of cultural heritage system evolution, spanning from 2001 to 2008, which highlights design issues such as intelligence and context-awareness in providing information. Then, multimodal access to contents is discussed, along with problems and corresponding solutions; an evaluation of several reviewed systems is also presented. Lastly, a case study multimodal framework termed MAGA is described, which combines intelligent conversational agents with speech recognition/synthesis technology in a framework employing RFID based location and Wi-Fi based data exchange. textcopyright 2010, IGI Global.},
keywords = {Cultural heritage, Multimodal Interaction},
pubstate = {published},
tppubtype = {book}
}
In this chapter the role of multimodality in intelligent, mobile guides for cultural heritage environments is discussed. Multimodal access to information contents enables the creation of systems with a higher degree of accessibility and usability. A multimodal interaction may involve several human interaction modes, such as sight, touch and voice to navigate contents, or gestures to activate controls. We first start our discussion by presenting a timeline of cultural heritage system evolution, spanning from 2001 to 2008, which highlights design issues such as intelligence and context-awareness in providing information. Then, multimodal access to contents is discussed, along with problems and corresponding solutions; an evaluation of several reviewed systems is also presented. Lastly, a case study multimodal framework termed MAGA is described, which combines intelligent conversational agents with speech recognition/synthesis technology in a framework employing RFID based location and Wi-Fi based data exchange. textcopyright 2010, IGI Global.
Augello, Agnese; Pilato, Giovanni; Gaglio, Salvatore
A Conversational Agent to Support Decisions in SimCity like Games Proceedings Article
In: ICSC 2009 - 2009 IEEE International Conference on Semantic Computing, pp. 367–372, 2009, ISBN: 978-0-7695-3800-6.
Abstract | Links | BibTeX | Tags: Artificial intelligence, Conversational Agents, Decision Support Systems, Human computer interaction, Semantic Computing
@inproceedings{augelloConversationalAgentSupport2009,
title = {A Conversational Agent to Support Decisions in SimCity like Games},
author = { Agnese Augello and Giovanni Pilato and Salvatore Gaglio},
doi = {10.1109/ICSC.2009.74},
isbn = {978-0-7695-3800-6},
year = {2009},
date = {2009-01-01},
booktitle = {ICSC 2009 - 2009 IEEE International Conference on Semantic Computing},
pages = {367--372},
abstract = {Computational intelligent techniques applied to economics have played an important role in the last years. In this paper we propose a framework based on an intelligent conversational agent embedded with a decision support system, aimed at suggesting the best managing strategies for a game-based model of a virtual town. The agent tries to prospect the future evolutions of particular choices taken by the user. Interaction is conducted through a natural language interface built as an Alice-based conversational agent. textcopyright 2009 IEEE.},
keywords = {Artificial intelligence, Conversational Agents, Decision Support Systems, Human computer interaction, Semantic Computing},
pubstate = {published},
tppubtype = {inproceedings}
}
Computational intelligent techniques applied to economics have played an important role in the last years. In this paper we propose a framework based on an intelligent conversational agent embedded with a decision support system, aimed at suggesting the best managing strategies for a game-based model of a virtual town. The agent tries to prospect the future evolutions of particular choices taken by the user. Interaction is conducted through a natural language interface built as an Alice-based conversational agent. textcopyright 2009 IEEE.
Sabatucci, Luca; Cossentino, Massimo; Susi, Angelo
Introducing Motivations in Design Pattern Representation Proceedings Article
In: Proceedings of the 11th International Conference on Software Reuse: Formal Foundations of Reuse and Domain Engineering, pp. 210, Springer, 2009.
Abstract | Links | BibTeX | Tags: Design Patterns, Design Process, Goal-Oriented Approach
@inproceedings{sabatucciIntroducingMotivationsDesign2009,
title = {Introducing Motivations in Design Pattern Representation},
author = { Luca Sabatucci and Massimo Cossentino and Angelo Susi},
doi = {10.1007/978-3-642-04211-9_20},
year = {2009},
date = {2009-01-01},
booktitle = {Proceedings of the 11th International Conference on Software Reuse: Formal Foundations of Reuse and Domain Engineering},
pages = {210},
publisher = {Springer},
abstract = {Design pattern formalization is aimed at encouraging the use of design patterns during the design phase. Many approaches focuses on providing solutions with a graphical notation and complementary text, typically composed by a static and a dynamic definitions. The weak point is the lack of flexibility when customizing the generic solution to the specific context of use. This paper proposes a criterion to motivate design pattern selection and reuse. Designer is supported with a technique for balancing pattern and context forces for selecting among alternative implementations. The provided representation summarizes and organizes relevant information in the classical informal pattern documentation.},
keywords = {Design Patterns, Design Process, Goal-Oriented Approach},
pubstate = {published},
tppubtype = {inproceedings}
}
Design pattern formalization is aimed at encouraging the use of design patterns during the design phase. Many approaches focuses on providing solutions with a graphical notation and complementary text, typically composed by a static and a dynamic definitions. The weak point is the lack of flexibility when customizing the generic solution to the specific context of use. This paper proposes a criterion to motivate design pattern selection and reuse. Designer is supported with a technique for balancing pattern and context forces for selecting among alternative implementations. The provided representation summarizes and organizes relevant information in the classical informal pattern documentation.
Augello, Agnese; Vassallo, Giorgio; Gaglio, Salvatore; Pilato, Giovanni
A Semantic Layer on Semi-Structured Data Sources for Intuitive Chatbots Proceedings Article
In: Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2009, pp. 760–765, 2009, ISBN: 978-0-7695-3575-3.
Abstract | Links | BibTeX | Tags: Chatbots, Knowledge Representation, Natural Language Processing, Semantic Computing, Semantic Spaces
@inproceedings{augelloSemanticLayerSemistructured2009,
title = {A Semantic Layer on Semi-Structured Data Sources for Intuitive Chatbots},
author = { Agnese Augello and Giorgio Vassallo and Salvatore Gaglio and Giovanni Pilato},
doi = {10.1109/CISIS.2009.165},
isbn = {978-0-7695-3575-3},
year = {2009},
date = {2009-01-01},
booktitle = {Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2009},
pages = {760--765},
abstract = {The main limits of chatbot technology are related to the building of their knowledge representation and to their rigid information retrieval and dialogue capabilities, usually based on simple "pattern matching rules". The analysis of distributional properties of words in a texts corpus allows the creation of semantic spaces where represent and compare natural language elements. This space can be interpreted as a "conceptual" space where the axes represent the latent primitive concepts of the analyzed corpus. The presented work aims at exploiting the properties of a data-driven semantic/conceptual space built using semistructured data sources freely available on the web, like Wikipedia. This coding is equivalent to adding, into the Wikipedia graph, a conceptual similarity relationship layer. The chatbot can exploit this layer in order to simulate an "intuitive" behavior, attempting to retrieve semantic relations between Wikipedia resources also through associative sub-symbolic paths. textcopyright 2009 IEEE.},
keywords = {Chatbots, Knowledge Representation, Natural Language Processing, Semantic Computing, Semantic Spaces},
pubstate = {published},
tppubtype = {inproceedings}
}
The main limits of chatbot technology are related to the building of their knowledge representation and to their rigid information retrieval and dialogue capabilities, usually based on simple "pattern matching rules". The analysis of distributional properties of words in a texts corpus allows the creation of semantic spaces where represent and compare natural language elements. This space can be interpreted as a "conceptual" space where the axes represent the latent primitive concepts of the analyzed corpus. The presented work aims at exploiting the properties of a data-driven semantic/conceptual space built using semistructured data sources freely available on the web, like Wikipedia. This coding is equivalent to adding, into the Wikipedia graph, a conceptual similarity relationship layer. The chatbot can exploit this layer in order to simulate an "intuitive" behavior, attempting to retrieve semantic relations between Wikipedia resources also through associative sub-symbolic paths. textcopyright 2009 IEEE.
Sorce, Salvatore; Augello, Agnese; Santangelo, Antonella; Genco, Alessandro; Gentile, Antonio; Gaglio, Salvatore; Pilato, Giovanni
An RFID Framework for Multimodal Service Provision Proceedings Article
In: Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2009, pp. 730–735, 2009, ISBN: 978-0-7695-3575-3.
Abstract | Links | BibTeX | Tags: Common Sense Reasoning, Context awareness, Conversational Agents, Human computer interaction, Multimodal Interaction, Ontologies, RFID Technology
@inproceedings{sorceRFIDFrameworkMultimodal2009,
title = {An RFID Framework for Multimodal Service Provision},
author = { Salvatore Sorce and Agnese Augello and Antonella Santangelo and Alessandro Genco and Antonio Gentile and Salvatore Gaglio and Giovanni Pilato},
doi = {10.1109/CISIS.2009.168},
isbn = {978-0-7695-3575-3},
year = {2009},
date = {2009-01-01},
booktitle = {Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2009},
pages = {730--735},
abstract = {In recent years there has been a growing interest toward the evelopment of pervasive and contextaware services, and RFID technology played a relevant role in the context sensing task. We propose the use of RFID technology together with a conversational agent in order to implement a multimodal information retrieval service we call SensorMesh. The information acquired from RFID tags about the nearest point of interest is processed by the conversational agent that carries a more natural interaction with the user, also exploiting a common sense ontology. The service is accessible using a multimodal browser on Personal Digital Assistants (PDAs); the browser allows the user to interact with the conversational agent by means of spoken language instead of the traditional, keyboard- (or stylus-) based input systems. The resulting system offers a more natural interaction with respect to traditional prerecorded, audio-visual services, and it is particularly suitable for non technology-skilled users. textcopyright 2009 IEEE.},
keywords = {Common Sense Reasoning, Context awareness, Conversational Agents, Human computer interaction, Multimodal Interaction, Ontologies, RFID Technology},
pubstate = {published},
tppubtype = {inproceedings}
}
In recent years there has been a growing interest toward the evelopment of pervasive and contextaware services, and RFID technology played a relevant role in the context sensing task. We propose the use of RFID technology together with a conversational agent in order to implement a multimodal information retrieval service we call SensorMesh. The information acquired from RFID tags about the nearest point of interest is processed by the conversational agent that carries a more natural interaction with the user, also exploiting a common sense ontology. The service is accessible using a multimodal browser on Personal Digital Assistants (PDAs); the browser allows the user to interact with the conversational agent by means of spoken language instead of the traditional, keyboard- (or stylus-) based input systems. The resulting system offers a more natural interaction with respect to traditional prerecorded, audio-visual services, and it is particularly suitable for non technology-skilled users. textcopyright 2009 IEEE.
2008
Gallo, Luigi; Minutolo, Aniello
A Natural Pointing Technique for Semi-Immersive Virtual Environments Proceedings Article
In: Mobiquitous '08 Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking, and Services, pp. 1–4, ICST, Dublin, Ireland, 2008, ISBN: 978-963-9799-27-1.
Abstract | Links | BibTeX | Tags: Healthcare, Interaction techniques, Mouse, Pointing, Virtual Reality, Wiimote
@inproceedings{galloNaturalPointingTechnique2008,
title = {A Natural Pointing Technique for Semi-Immersive Virtual Environments},
author = { Luigi Gallo and Aniello Minutolo},
doi = {10.4108/ICST.MOBIQUITOUS2008.3863},
isbn = {978-963-9799-27-1},
year = {2008},
date = {2008-07-01},
booktitle = {Mobiquitous '08 Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking, and Services},
pages = {1--4},
publisher = {ICST},
address = {Dublin, Ireland},
abstract = {Several interaction metaphors and techniques have been proposed to allow a natural interaction in virtual environments. Usually all these techniques are designed to be used with input devices such as wands, 3D mice or gloves. However, the availability of a new generation of auto-stereoscopic displays now makes it possible to exploit virtual experiences in new scenarios. In this paper we propose a variation of the ray-casting technique suitable for use with a standard mouse. With this proposed technique, users can move a 3D cursor in the virtual world without worrying about the third dimension and without losing the level of immersion provided by the 3D display.},
keywords = {Healthcare, Interaction techniques, Mouse, Pointing, Virtual Reality, Wiimote},
pubstate = {published},
tppubtype = {inproceedings}
}
Several interaction metaphors and techniques have been proposed to allow a natural interaction in virtual environments. Usually all these techniques are designed to be used with input devices such as wands, 3D mice or gloves. However, the availability of a new generation of auto-stereoscopic displays now makes it possible to exploit virtual experiences in new scenarios. In this paper we propose a variation of the ray-casting technique suitable for use with a standard mouse. With this proposed technique, users can move a 3D cursor in the virtual world without worrying about the third dimension and without losing the level of immersion provided by the 3D display.
Gallo, Luigi; Pietro, Giuseppe De; Coronato, Antonio; Marra, Ivana
Toward a Natural Interface to Virtual Medical Imaging Environments Proceedings Article
In: AVI '08 Proceedings of the Working Conference on Advanced Visual Interfaces, pp. 429–432, ACM New York, NY, USA, Napoli, Italy, 2008, ISBN: 978-1-60558-141-5.
Abstract | Links | BibTeX | Tags: 3D interaction, Medical Imaging, Virtual Reality, VTK, Wireless
@inproceedings{galloNaturalInterfaceVirtual2008,
title = {Toward a Natural Interface to Virtual Medical Imaging Environments},
author = { Luigi Gallo and Giuseppe De Pietro and Antonio Coronato and Ivana Marra},
doi = {10.1145/1385569.1385651},
isbn = {978-1-60558-141-5},
year = {2008},
date = {2008-05-01},
booktitle = {AVI '08 Proceedings of the Working Conference on Advanced Visual Interfaces},
pages = {429--432},
publisher = {ACM New York, NY, USA},
address = {Napoli, Italy},
abstract = {Immersive Virtual Reality environments are suitable to support activities related to medicine and medical practice. The immersive visualization of information-rich 3D objects, coming from patient scanned data, provides clinicians with a clear perception of depth and shapes. However, to benefit from immersive visualization in medical imaging, where inspection and manipulation of volumetric data are fundamental tasks, medical experts have to be able to act in the virtual environment by exploiting their real life abilities. In order to reach this goal, it is necessary to take into account user skills and needs so as to design and implement usable and accessible human-computer interaction interfaces. In this paper we present a natural interface for a semi-immersive virtual environment. Such interface is based on an off-the-shelf handheld wireless device and a speech recognition component, and provides clinicians with intuitive interaction modes for inspecting volumetric medical data.},
keywords = {3D interaction, Medical Imaging, Virtual Reality, VTK, Wireless},
pubstate = {published},
tppubtype = {inproceedings}
}
Immersive Virtual Reality environments are suitable to support activities related to medicine and medical practice. The immersive visualization of information-rich 3D objects, coming from patient scanned data, provides clinicians with a clear perception of depth and shapes. However, to benefit from immersive visualization in medical imaging, where inspection and manipulation of volumetric data are fundamental tasks, medical experts have to be able to act in the virtual environment by exploiting their real life abilities. In order to reach this goal, it is necessary to take into account user skills and needs so as to design and implement usable and accessible human-computer interaction interfaces. In this paper we present a natural interface for a semi-immersive virtual environment. Such interface is based on an off-the-shelf handheld wireless device and a speech recognition component, and provides clinicians with intuitive interaction modes for inspecting volumetric medical data.
Gallo, Luigi; Pietro, Giuseppe De; Minutolo, Aniello
Realistic vs. Magic Interaction Metaphors in Virtual Environments Unpublished
2008.
Abstract | BibTeX | Tags: Interaction metaphors, Interaction techniques, Natural User Interfaces, Virtual Reality, Wiimote
@unpublished{galloRealisticVsMagic2008,
title = {Realistic vs. Magic Interaction Metaphors in Virtual Environments},
author = { Luigi Gallo and Giuseppe De Pietro and Aniello Minutolo},
year = {2008},
date = {2008-03-01},
address = {Mogliano Veneto, Italy},
abstract = {Virtual Reality (VR) technologies make it possible to reproduce faithfully real life events in computer-generated scenarios. This approach has the potential to simplify the way people solve problems, since they can take advantage of their real life experiences while interacting in synthetic worlds. In order to convey the users' knowledge to the VR context, interaction metaphors are used. They can be either realistic, i.e. based on real world rules, or magic. In this paper we discuss the subject of interaction metaphors and outline the pros and cons of realistic vs. magic approaches. We also present our experience in the development of interaction techniques in a practical scenario, and suggest an approach to design effective 3D interaction metaphors.},
keywords = {Interaction metaphors, Interaction techniques, Natural User Interfaces, Virtual Reality, Wiimote},
pubstate = {published},
tppubtype = {unpublished}
}
Virtual Reality (VR) technologies make it possible to reproduce faithfully real life events in computer-generated scenarios. This approach has the potential to simplify the way people solve problems, since they can take advantage of their real life experiences while interacting in synthetic worlds. In order to convey the users' knowledge to the VR context, interaction metaphors are used. They can be either realistic, i.e. based on real world rules, or magic. In this paper we discuss the subject of interaction metaphors and outline the pros and cons of realistic vs. magic approaches. We also present our experience in the development of interaction techniques in a practical scenario, and suggest an approach to design effective 3D interaction metaphors.
Gallo, Luigi; Pietro, Giuseppe De; Marra, Ivana
User-Friendly Inspection of Medical Image Data Volumes in Virtual Environments Proceedings Article
In: CISIS '08: Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, pp. 749–754, IEEE Computer Society, Los Alamitos, CA, USA, Polytechnic University of Catalonia, Spain, 2008, ISBN: 0-7695-3109-1.
Abstract | Links | BibTeX | Tags: 3D interaction, Healthcare, Medical Imaging, Virtual Reality, VOI
@inproceedings{galloUserFriendlyInspectionMedical2008,
title = {User-Friendly Inspection of Medical Image Data Volumes in Virtual Environments},
author = { Luigi Gallo and Giuseppe De Pietro and Ivana Marra},
doi = {10.1109/CISIS.2008.33},
isbn = {0-7695-3109-1},
year = {2008},
date = {2008-03-01},
booktitle = {CISIS '08: Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems},
pages = {749--754},
publisher = {IEEE Computer Society, Los Alamitos, CA, USA},
address = {Polytechnic University of Catalonia, Spain},
abstract = {In many fields of medicine interactive virtual environments can offer enhanced visualization and manipulation of three-dimensional objects, reconstructed from high-quality scans of human organs. Stereoscopic systems provide users with a natural depth perception about the spatial nature of the structures of interest; moreover advanced user-friendly interfaces, by allowing a natural and intuitive interaction, can strengthen the feeling of being immersed, so to offer clinicians the possibility to act how they do in the real life. In order to enhance the sense of realism specially in medical computer-assisted education, training and diagnostic fields, it is necessary to have a system in which every action can be executed directly into the 3D world without switching to a 2D visualization mode. In this paper we present new interaction techniques to select and extract a volume-of-interest (VOI) in a semi-immersive interactive environment, by using a user-friendly wireless interface, suitable to implement pointing and manipulation features with 6 DOF.},
keywords = {3D interaction, Healthcare, Medical Imaging, Virtual Reality, VOI},
pubstate = {published},
tppubtype = {inproceedings}
}
In many fields of medicine interactive virtual environments can offer enhanced visualization and manipulation of three-dimensional objects, reconstructed from high-quality scans of human organs. Stereoscopic systems provide users with a natural depth perception about the spatial nature of the structures of interest; moreover advanced user-friendly interfaces, by allowing a natural and intuitive interaction, can strengthen the feeling of being immersed, so to offer clinicians the possibility to act how they do in the real life. In order to enhance the sense of realism specially in medical computer-assisted education, training and diagnostic fields, it is necessary to have a system in which every action can be executed directly into the 3D world without switching to a 2D visualization mode. In this paper we present new interaction techniques to select and extract a volume-of-interest (VOI) in a semi-immersive interactive environment, by using a user-friendly wireless interface, suitable to implement pointing and manipulation features with 6 DOF.
Gallo, Luigi; Pietro, Giuseppe De; Marra, Ivana
3D Interaction with Volumetric Medical Data: Experiencing the Wiimote Proceedings Article
In: 2008 1st International Conference on Ambient Media and Systems (Ambi-Sys), pp. 1–6, ICST, Quebec City, Quebec, Canada, 2008, ISBN: 978-963-9799-16-5.
Abstract | Links | BibTeX | Tags: 3D interaction, Healthcare, Manipulation, Pointing, Usability, Virtual Reality, Wireless
@inproceedings{gallo3DInteractionVolumetric2008,
title = {3D Interaction with Volumetric Medical Data: Experiencing the Wiimote},
author = { Luigi Gallo and Giuseppe De Pietro and Ivana Marra},
doi = {10.4108/ICST.AMBISYS2008.2880},
isbn = {978-963-9799-16-5},
year = {2008},
date = {2008-02-01},
booktitle = {2008 1st International Conference on Ambient Media and Systems (Ambi-Sys)},
pages = {1--6},
publisher = {ICST},
address = {Quebec City, Quebec, Canada},
abstract = {Three-dimensional virtual environments are becoming more and more important for the inspection of volumetric medical data reconstructed from slices of images coming from Magnetic Resonance Imaging (MRI), Computer Tomography (CT), Positron Emission Tomography (PET) instrumentations. The possibility to visualize and interact with three-dimensional reconstructed organs while being immersed into a virtual environment, provides doctors a very naturalistic way to investigate patient's anatomy. However, most 3D user interfaces for immersive and semiimmersive virtual reality applications lack in usability or make not possible a user-friendly interaction. In this paper we present new flavors of existing 3D interaction techniques specifically designed for interacting with volumetric medical data in a semi-immersive virtual environment by using the Nintendo Wiimote controller as 3D user interface.},
keywords = {3D interaction, Healthcare, Manipulation, Pointing, Usability, Virtual Reality, Wireless},
pubstate = {published},
tppubtype = {inproceedings}
}
Three-dimensional virtual environments are becoming more and more important for the inspection of volumetric medical data reconstructed from slices of images coming from Magnetic Resonance Imaging (MRI), Computer Tomography (CT), Positron Emission Tomography (PET) instrumentations. The possibility to visualize and interact with three-dimensional reconstructed organs while being immersed into a virtual environment, provides doctors a very naturalistic way to investigate patient's anatomy. However, most 3D user interfaces for immersive and semiimmersive virtual reality applications lack in usability or make not possible a user-friendly interaction. In this paper we present new flavors of existing 3D interaction techniques specifically designed for interacting with volumetric medical data in a semi-immersive virtual environment by using the Nintendo Wiimote controller as 3D user interface.
Coronato, Antonio; Pietro, Giuseppe De; Gallo, Luigi
An Agent Based Platform for Task Distribution in Virtual Environments Journal Article
In: Journal of Systems Architecture, vol. 54, no. 9, pp. 877–882, 2008, ISSN: 1383-7621.
Abstract | Links | BibTeX | Tags: Context awareness, Multi-agent systems, Pervasive computing
@article{coronatoAgentBasedPlatform2008,
title = {An Agent Based Platform for Task Distribution in Virtual Environments},
author = { Antonio Coronato and Giuseppe De Pietro and Luigi Gallo},
doi = {10.1016/j.sysarc.2008.01.011},
issn = {1383-7621},
year = {2008},
date = {2008-01-01},
journal = {Journal of Systems Architecture},
volume = {54},
number = {9},
pages = {877--882},
abstract = {This paper focuses on automatic mechanisms for task distribution and execution in virtual and mobile environments. In particular, the goal is the implementation of Utility Computing services that enable users to submit their source code and to have their applications executed without concerning about resource allocation, task distribution, and load-balancing. The proposed solution consists in a distributed agent-based software infrastructure that grants a high level of transparency from the user point of view. As a matter of fact, accordingly with the Utility Computing model, the user has just to submit its tasks and their input parameters; after that, the software infrastructure takes care of (1) encapsulating tasks in mobile agents; (2) distributing them in the virtual environment; (3) launching and controlling execution; (4) picking up results; and (5) handling computing stations. Finally, it is important to note that the infrastructure is able to integrate both fixed and mobile hardware resources to build a community of computing stations for task executions. As a consequence, such an infrastructure can get useful computing power even from stations (mobile devices) that have always been neglected by classic task execution platforms.},
keywords = {Context awareness, Multi-agent systems, Pervasive computing},
pubstate = {published},
tppubtype = {article}
}
This paper focuses on automatic mechanisms for task distribution and execution in virtual and mobile environments. In particular, the goal is the implementation of Utility Computing services that enable users to submit their source code and to have their applications executed without concerning about resource allocation, task distribution, and load-balancing. The proposed solution consists in a distributed agent-based software infrastructure that grants a high level of transparency from the user point of view. As a matter of fact, accordingly with the Utility Computing model, the user has just to submit its tasks and their input parameters; after that, the software infrastructure takes care of (1) encapsulating tasks in mobile agents; (2) distributing them in the virtual environment; (3) launching and controlling execution; (4) picking up results; and (5) handling computing stations. Finally, it is important to note that the infrastructure is able to integrate both fixed and mobile hardware resources to build a community of computing stations for task executions. As a consequence, such an infrastructure can get useful computing power even from stations (mobile devices) that have always been neglected by classic task execution platforms.
Franchini, Silvia; Gentile, Antonio; Sorbello, Filippo; Vassallo, Giorgio; Vitabile, Salvatore
An FPGA Implementation of a Quadruple-Based Multiplier for 4D Clifford Algebra Proceedings Article
In: pp. 743–751, 2008, ISBN: 978-0-7695-3277-6.
Abstract | Links | BibTeX | Tags: Clifford algebra, Embedded coprocessors, Field Programmable Gate Arrays, FPGA prototyping, Geometric algebra
@inproceedings{franchiniFPGAImplementationQuadruplebased2008,
title = {An FPGA Implementation of a Quadruple-Based Multiplier for 4D Clifford Algebra},
author = { Silvia Franchini and Antonio Gentile and Filippo Sorbello and Giorgio Vassallo and Salvatore Vitabile},
doi = {10.1109/DSD.2008.91},
isbn = {978-0-7695-3277-6},
year = {2008},
date = {2008-01-01},
pages = {743--751},
abstract = {Geometric or Clifford algebra is an interesting paradigm for geometric modeling infields as computer graphics, machine vision and robotics. In these areas the research effort is actually aimed at finding an efficient implementation of geometric algebra. The best way to exploit the symbolic computing power of geometric algebra is to support its data types and operators directly in hardware. However the natural representation of the algebra elements as variable-length objects causes some problems in the case of a hardware implementation. This paper proposes a 4D Clifford algebra in which the variable-length elements are mapped into fixed-length elements (quadruples). This choice leads to a simpler and more compact hardware implementation of 40 geometric algebra, The paper also presents the architecture of CliffArchy, a coprocessing core supporting the new fixed-length Clifford operands. A prototype implementation on a FPGA board is described. textcopyright.2008 IEEE.},
keywords = {Clifford algebra, Embedded coprocessors, Field Programmable Gate Arrays, FPGA prototyping, Geometric algebra},
pubstate = {published},
tppubtype = {inproceedings}
}
Geometric or Clifford algebra is an interesting paradigm for geometric modeling infields as computer graphics, machine vision and robotics. In these areas the research effort is actually aimed at finding an efficient implementation of geometric algebra. The best way to exploit the symbolic computing power of geometric algebra is to support its data types and operators directly in hardware. However the natural representation of the algebra elements as variable-length objects causes some problems in the case of a hardware implementation. This paper proposes a 4D Clifford algebra in which the variable-length elements are mapped into fixed-length elements (quadruples). This choice leads to a simpler and more compact hardware implementation of 40 geometric algebra, The paper also presents the architecture of CliffArchy, a coprocessing core supporting the new fixed-length Clifford operands. A prototype implementation on a FPGA board is described. textcopyright.2008 IEEE.
Gaglio, Salvatore; Pilato, Giovanni; Pirrone, Roberto; Gambino, Orazio; Augello, Agnese; Caronia, Alessandro
A Java3D Talking Head for a Chatbot Proceedings Article
In: Proceedings - CISIS 2008: 2nd International Conference on Complex, Intelligent and Software Intensive Systems, pp. 709–714, 2008, ISBN: 0-7695-3109-1 978-0-7695-3109-0.
Abstract | Links | BibTeX | Tags: 3D Modelling, Animation, Artificial intelligence, Human computer interaction, Talking Heads
@inproceedings{gaglioJava3DTalkingHead2008,
title = {A Java3D Talking Head for a Chatbot},
author = { Salvatore Gaglio and Giovanni Pilato and Roberto Pirrone and Orazio Gambino and Agnese Augello and Alessandro Caronia},
doi = {10.1109/CISIS.2008.57},
isbn = {0-7695-3109-1 978-0-7695-3109-0},
year = {2008},
date = {2008-01-01},
booktitle = {Proceedings - CISIS 2008: 2nd International Conference on Complex, Intelligent and Software Intensive Systems},
pages = {709--714},
abstract = {Facial animation is referred to all those systems performing the speech synchronization with an animated face model. This kind of systems are called "Talking Head" or "Talking Face". In this paper a Talking Head oriented to the creation of a Chatbot is presented. It requires an input query and an answer is generated in form of text. The answer is transduced into a facial animation using a 3D face model whose lips movements are synchronized with the sound produced by a speech synthesis module. Our "Talking Head" explores the naturalness of the facial animation and provides a real-time interactive interface to the user. The WEB infrastructure has been realized using the Client-Server model delegating the Chatbot, the Natural Language Processing and the Digital Signal Processing services to the server, while the client is involved in animation, synchronization; in this way, the server can handle multiple requests from clients. textcopyright 2008 IEEE.},
keywords = {3D Modelling, Animation, Artificial intelligence, Human computer interaction, Talking Heads},
pubstate = {published},
tppubtype = {inproceedings}
}
Facial animation is referred to all those systems performing the speech synchronization with an animated face model. This kind of systems are called "Talking Head" or "Talking Face". In this paper a Talking Head oriented to the creation of a Chatbot is presented. It requires an input query and an answer is generated in form of text. The answer is transduced into a facial animation using a 3D face model whose lips movements are synchronized with the sound produced by a speech synthesis module. Our "Talking Head" explores the naturalness of the facial animation and provides a real-time interactive interface to the user. The WEB infrastructure has been realized using the Client-Server model delegating the Chatbot, the Natural Language Processing and the Digital Signal Processing services to the server, while the client is involved in animation, synchronization; in this way, the server can handle multiple requests from clients. textcopyright 2008 IEEE.
Gambino, Orazio; Augello, Agnese; Caronia, Alessandro; Pilato, Giovanni; Pirrone, Roberto; Gaglio, Salvatore
Virtual Conversation with a Real Talking Head Proceedings Article
In: 2008 Conference on Human System Interaction, HSI 2008, pp. 263–268, 2008, ISBN: 1-4244-1543-8 978-1-4244-1543-4.
Abstract | Links | BibTeX | Tags: 3D Modelling, Animation, Artificial intelligence, Computational Linguistics, Conversational Agents, Human computer interaction, Natural Language Processing, Talking Heads
@inproceedings{gambinoVirtualConversationReal2008,
title = {Virtual Conversation with a Real Talking Head},
author = { Orazio Gambino and Agnese Augello and Alessandro Caronia and Giovanni Pilato and Roberto Pirrone and Salvatore Gaglio},
doi = {10.1109/HSI.2008.4581446},
isbn = {1-4244-1543-8 978-1-4244-1543-4},
year = {2008},
date = {2008-01-01},
booktitle = {2008 Conference on Human System Interaction, HSI 2008},
pages = {263--268},
abstract = {A talking head is system performing an animated face model synchronized with a speech synthesis module. It is used as a presentation layer of a conversational Agent which provide an answer . It provides an answer when a query is written as an input by the user. The textual answer is converted into facial movements of a 3D face model whose lips and tongue movements are synchronized with the sound of the synthetic voice. The Client-Server paradigm has been used for the WEB infrastructure delegating the animation and synchronization to the client, so that the server can satisfy multiple requests from clients; while the Chatbot, the Digital Signal Processing and the Natural language Processing are provided by the server. textcopyright 2008 IEEE.},
keywords = {3D Modelling, Animation, Artificial intelligence, Computational Linguistics, Conversational Agents, Human computer interaction, Natural Language Processing, Talking Heads},
pubstate = {published},
tppubtype = {inproceedings}
}
A talking head is system performing an animated face model synchronized with a speech synthesis module. It is used as a presentation layer of a conversational Agent which provide an answer . It provides an answer when a query is written as an input by the user. The textual answer is converted into facial movements of a 3D face model whose lips and tongue movements are synchronized with the sound of the synthetic voice. The Client-Server paradigm has been used for the WEB infrastructure delegating the animation and synchronization to the client, so that the server can satisfy multiple requests from clients; while the Chatbot, the Digital Signal Processing and the Natural language Processing are provided by the server. textcopyright 2008 IEEE.
Ammoscato, Alessio; Corsale, Rita; Dardanelli, Gino; Scianna, Andrea; Villa, B.
GPS-GIS Integrated System for Electromagnetic Pollution Proceedings Article
In: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, pp. 491–497, International Society for Photogrammetry and Remote Sensing, 2008.
Abstract | BibTeX | Tags: Environmental Applications, Geographical Information Systems, GPS-GIS Integrated Systems, Real-Time Kinematic
@inproceedings{ammoscatoGPSGISIntegratedSystem2008a,
title = {GPS-GIS Integrated System for Electromagnetic Pollution},
author = { Alessio Ammoscato and Rita Corsale and Gino Dardanelli and Andrea Scianna and B. Villa},
year = {2008},
date = {2008-01-01},
booktitle = {International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives},
volume = {37},
pages = {491--497},
publisher = {International Society for Photogrammetry and Remote Sensing},
abstract = {In these last years employment and spreading of GPS real-time kinematic techniques is greatly improved. Its application field is extended from traditional topographic surveys to environmental applications. In this work a monitoring project of electromagnetic pollution is shown; this project has been carried out in order to realize an infrastructure of measurement, transmissions, elaboration and management of surveyed data. In particular, the results of a research about the realization of a first prototype of advanced system based on the integration of GPS receivers and other sensors are shown. The research has been carried out in collaboration with "Dipartimento di Ricerche Energetiche ed Ambientali" of University of Palermo and with the "Laboratorio di Fisica ARPA Regione Sicilia". The experimentation has been carried out using a car equipped with roof rack where both an antenna and electromagnetic sensor were installed. The GPS survey was carried out by a integrated palmtop-GPS, linked with an analyser of electromagnetic spectrum, in broadband or not. Well than, a GIS has been created in order to show some thematic maps which represent the distribution of electromagnetic pollution and accuracy positioning. textcopyright 2008 International Society for Photogrammetry and Remote Sensing. All rights reserved.},
keywords = {Environmental Applications, Geographical Information Systems, GPS-GIS Integrated Systems, Real-Time Kinematic},
pubstate = {published},
tppubtype = {inproceedings}
}
In these last years employment and spreading of GPS real-time kinematic techniques is greatly improved. Its application field is extended from traditional topographic surveys to environmental applications. In this work a monitoring project of electromagnetic pollution is shown; this project has been carried out in order to realize an infrastructure of measurement, transmissions, elaboration and management of surveyed data. In particular, the results of a research about the realization of a first prototype of advanced system based on the integration of GPS receivers and other sensors are shown. The research has been carried out in collaboration with "Dipartimento di Ricerche Energetiche ed Ambientali" of University of Palermo and with the "Laboratorio di Fisica ARPA Regione Sicilia". The experimentation has been carried out using a car equipped with roof rack where both an antenna and electromagnetic sensor were installed. The GPS survey was carried out by a integrated palmtop-GPS, linked with an analyser of electromagnetic spectrum, in broadband or not. Well than, a GIS has been created in order to show some thematic maps which represent the distribution of electromagnetic pollution and accuracy positioning. textcopyright 2008 International Society for Photogrammetry and Remote Sensing. All rights reserved.
Pilato, Giovanni; Augello, Agnese; Vassallo, Giorgio; Gaglio, Salvatore
EHeBby: An Evocative Humorist Chat-Bot Journal Article
In: Mobile Information Systems, vol. 4, no. 3, pp. 165–181, 2008, ISSN: 1574017X.
Abstract | Links | BibTeX | Tags: Chatbots, Computational Humour, Conversational Agents
@article{pilatoEHeBbyEvocativeHumorist2008,
title = {EHeBby: An Evocative Humorist Chat-Bot},
author = { Giovanni Pilato and Agnese Augello and Giorgio Vassallo and Salvatore Gaglio},
doi = {10.1155/2008/312319},
issn = {1574017X},
year = {2008},
date = {2008-01-01},
journal = {Mobile Information Systems},
volume = {4},
number = {3},
pages = {165--181},
abstract = {A conversational agent, capable to have a "sense of humor" is presented. The agent can both generate humorous sentences and recognize humoristic expressions introduced by the user during the dialogue. EHeBby is an entertainment oriented conversational agent implemented using the ALICE framework embedded into an Yahoo! Messenger client. It is characterized by two areas: a rational, rule-based area and an evocative area. The first one is based on well founded techniques of computational humor and a standard AIML KB. The second one is based on a conceptual space, automatically induced by a corpus of funny documents, where KB items and user sentences are mapped. This area emulates an associative/evocative behavior of the conversational agent, making her more attractive. EHeBby includes also an avatar that changes the face expression according to humoristic content of the dialogue. textcopyright 2008 - IOS Press and the authors.},
keywords = {Chatbots, Computational Humour, Conversational Agents},
pubstate = {published},
tppubtype = {article}
}
A conversational agent, capable to have a "sense of humor" is presented. The agent can both generate humorous sentences and recognize humoristic expressions introduced by the user during the dialogue. EHeBby is an entertainment oriented conversational agent implemented using the ALICE framework embedded into an Yahoo! Messenger client. It is characterized by two areas: a rational, rule-based area and an evocative area. The first one is based on well founded techniques of computational humor and a standard AIML KB. The second one is based on a conceptual space, automatically induced by a corpus of funny documents, where KB items and user sentences are mapped. This area emulates an associative/evocative behavior of the conversational agent, making her more attractive. EHeBby includes also an avatar that changes the face expression according to humoristic content of the dialogue. textcopyright 2008 - IOS Press and the authors.
Pilato, Giovanni; Augello, Agnese; Vassallo, Giorgio; Gaglio, Salvatore
Sub-Symbolic Knowledge Representation for Evocative Chat-Bots Book
Physica-Verlag HD, 2008, ISBN: 978-3-7908-2009-6.
Abstract | Links | BibTeX | Tags: Chatbots, Knowledge Representation, Latent Semantic Analysis
@book{pilatoSubsymbolicKnowledgeRepresentation2008,
title = {Sub-Symbolic Knowledge Representation for Evocative Chat-Bots},
author = { Giovanni Pilato and Agnese Augello and Giorgio Vassallo and Salvatore Gaglio},
doi = {10.1007/978-3-7908-2010-2_42},
isbn = {978-3-7908-2009-6},
year = {2008},
date = {2008-01-01},
publisher = {Physica-Verlag HD},
abstract = {A sub-symbolic knowledge representation oriented to the enhancement of chat bot interaction is proposed. The result of the technique is the introduction of a semantic sub-symbolic layer to a traditional ontology-based knowledge representation. This layer is obtained mapping the ontology concepts into a semantic space built through Latent Semantic Analysis (LSA) technique and it is embedded into a conversational agent. This choice leads to a chat-bot with evocative capabilities whose knowledge representation framework is composed of two areas: the rational and the evocative one. As a standard ontology we have chosen the well-founded WordNet lexical dictionary, while as chat-bot the ALICE architecture. Experimental trials involving four lexical categories of WordNet have been conducted, and an example of interaction is shown at the end of the paper. textcopyright 2008 Physica-Verlag Heidelberg.},
keywords = {Chatbots, Knowledge Representation, Latent Semantic Analysis},
pubstate = {published},
tppubtype = {book}
}
A sub-symbolic knowledge representation oriented to the enhancement of chat bot interaction is proposed. The result of the technique is the introduction of a semantic sub-symbolic layer to a traditional ontology-based knowledge representation. This layer is obtained mapping the ontology concepts into a semantic space built through Latent Semantic Analysis (LSA) technique and it is embedded into a conversational agent. This choice leads to a chat-bot with evocative capabilities whose knowledge representation framework is composed of two areas: the rational and the evocative one. As a standard ontology we have chosen the well-founded WordNet lexical dictionary, while as chat-bot the ALICE architecture. Experimental trials involving four lexical categories of WordNet have been conducted, and an example of interaction is shown at the end of the paper. textcopyright 2008 Physica-Verlag Heidelberg.
Sabatucci, Luca; Garcia, Alessandro F.; Cacho, Nélio; Cossentino, Massimo; Gaglio, Salvatore
Conquering Fine-Grained Blends of Design Patterns Proceedings Article
In: ICSR, pp. 294–305, 2008.
Abstract | Links | BibTeX | Tags: Design Patterns, Pattern Blending, Reusability
@inproceedings{sabatucciConqueringFineGrainedBlends2008,
title = {Conquering Fine-Grained Blends of Design Patterns},
author = { Luca Sabatucci and Alessandro F. Garcia and Nélio Cacho and Massimo Cossentino and Salvatore Gaglio},
doi = {10.1007/978-3-540-68073-4_32},
year = {2008},
date = {2008-01-01},
booktitle = {ICSR},
pages = {294--305},
abstract = {The reuse of design patterns in realistic software systems is often a result of blending multiple pattern elements together rather than instantiating them in an isolated manner. The explicit description of pattern compositions is the key for (i) documenting the structure and the behavior of blended patterns and, (ii) more importantly, supporting the reuse of composite patterns across different software projects. In this context, this paper proposes a fine-grained composition language for describing varying blends of design patterns based on their structural and behavioural semantics. The reusability and expressiveness of the proposed language are assessed through its application to 32 compositions of GoF patterns recurrently appearing in three different case studies: the OpenOrb middleware, the JHotDraw and JUnit frameworks.},
keywords = {Design Patterns, Pattern Blending, Reusability},
pubstate = {published},
tppubtype = {inproceedings}
}
The reuse of design patterns in realistic software systems is often a result of blending multiple pattern elements together rather than instantiating them in an isolated manner. The explicit description of pattern compositions is the key for (i) documenting the structure and the behavior of blended patterns and, (ii) more importantly, supporting the reuse of composite patterns across different software projects. In this context, this paper proposes a fine-grained composition language for describing varying blends of design patterns based on their structural and behavioural semantics. The reusability and expressiveness of the proposed language are assessed through its application to 32 compositions of GoF patterns recurrently appearing in three different case studies: the OpenOrb middleware, the JHotDraw and JUnit frameworks.
Augello, Agnese; Saccone, Gaetano; Gaglio, Salvatore; Pilato, Giovanni
Humorist Bot: Bringing Computational Humour in a Chat-Bot System Proceedings Article
In: Proceedings - CISIS 2008: 2nd International Conference on Complex, Intelligent and Software Intensive Systems, pp. 703–708, 2008, ISBN: 0-7695-3109-1 978-0-7695-3109-0.
Abstract | Links | BibTeX | Tags: Chatbots, Computational Humour, Conversational Agents
@inproceedings{augelloHumoristBotBringing2008,
title = {Humorist Bot: Bringing Computational Humour in a Chat-Bot System},
author = { Agnese Augello and Gaetano Saccone and Salvatore Gaglio and Giovanni Pilato},
doi = {10.1109/CISIS.2008.117},
isbn = {0-7695-3109-1 978-0-7695-3109-0},
year = {2008},
date = {2008-01-01},
booktitle = {Proceedings - CISIS 2008: 2nd International Conference on Complex, Intelligent and Software Intensive Systems},
pages = {703--708},
abstract = {A conversational agent, capable to have a "sense of humour" is presented. The agent can both generate humorous sentences and recognize humoristic expressions introduced by the user during the dialogue. HumoristBot makes use of well founded techniques of computational humor and it has been implemented using the ALICE framework embedded into an Yahoo! Messenger client. It includes also an avatar that changes the face expression according to humoristic content of the dialogue. textcopyright 2008 IEEE.},
keywords = {Chatbots, Computational Humour, Conversational Agents},
pubstate = {published},
tppubtype = {inproceedings}
}
A conversational agent, capable to have a "sense of humour" is presented. The agent can both generate humorous sentences and recognize humoristic expressions introduced by the user during the dialogue. HumoristBot makes use of well founded techniques of computational humor and it has been implemented using the ALICE framework embedded into an Yahoo! Messenger client. It includes also an avatar that changes the face expression according to humoristic content of the dialogue. textcopyright 2008 IEEE.
Augello, Agnese; Vassallo, Giorgio; Gaglio, Salvatore; Pilato, Giovanni
Sentence Induced Transformations in "Conceptual" Spaces Proceedings Article
In: Proceedings - IEEE International Conference on Semantic Computing 2008, ICSC 2008, pp. 34–41, 2008, ISBN: 978-0-7695-3279-0.
Abstract | Links | BibTeX | Tags: Clifford algebra, Geometric algebra, Latent Semantic Analysis, Natural Language Processing, Semantic Computing
@inproceedings{augelloSentenceInducedTransformations2008,
title = {Sentence Induced Transformations in "Conceptual" Spaces},
author = { Agnese Augello and Giorgio Vassallo and Salvatore Gaglio and Giovanni Pilato},
doi = {10.1109/ICSC.2008.74},
isbn = {978-0-7695-3279-0},
year = {2008},
date = {2008-01-01},
booktitle = {Proceedings - IEEE International Conference on Semantic Computing 2008, ICSC 2008},
pages = {34--41},
abstract = {The proposed work illustrates how "primitive concepts "can be automatically induced from a text corpus. The primitive concepts are identified by the orthonormal axis of a "conceptual" space induced by a methodology inspired to the Latent Semantic Analysis approach. The methodology represents a natural language sentence by means of a set of rotations of an orthonormal basis in the "conceptual" space. The rotations, triggered by the sequence of words composing the sentence and realized by means of Geometric Algebra rotors, allow to highlight "conceptual" relations that can arise among the primitive concepts. textcopyright 2008 IEEE.},
keywords = {Clifford algebra, Geometric algebra, Latent Semantic Analysis, Natural Language Processing, Semantic Computing},
pubstate = {published},
tppubtype = {inproceedings}
}
The proposed work illustrates how "primitive concepts "can be automatically induced from a text corpus. The primitive concepts are identified by the orthonormal axis of a "conceptual" space induced by a methodology inspired to the Latent Semantic Analysis approach. The methodology represents a natural language sentence by means of a set of rotations of an orthonormal basis in the "conceptual" space. The rotations, triggered by the sequence of words composing the sentence and realized by means of Geometric Algebra rotors, allow to highlight "conceptual" relations that can arise among the primitive concepts. textcopyright 2008 IEEE.
2007
Pietro, Giuseppe De; Gallo, Luigi; Marra, Ivana; Vanzanella, Carmen
A New Approach for Handling 3D Medical Data in an Immersive Environment Proceedings Article
In: VECIMS 2007. IEEE Symposium on Virtual Environments, Human-Computer Interfaces and Measurement Systems, 2007, pp. 63–66, IEEE Computer Society, Ostuni, Italy, 2007, ISBN: 978-1-4244-0820-7.
Abstract | Links | BibTeX | Tags: Healthcare, Medical Imaging, VOI, Volume Rendering, VTK
@inproceedings{depietroNewApproachHandling2007,
title = {A New Approach for Handling 3D Medical Data in an Immersive Environment},
author = { Giuseppe De Pietro and Luigi Gallo and Ivana Marra and Carmen Vanzanella},
doi = {10.1109/VECIMS.2007.4373929},
isbn = {978-1-4244-0820-7},
year = {2007},
date = {2007-06-01},
booktitle = {VECIMS 2007. IEEE Symposium on Virtual Environments, Human-Computer Interfaces and Measurement Systems, 2007},
pages = {63--66},
publisher = {IEEE Computer Society},
address = {Ostuni, Italy},
abstract = {Medical Imaging applications use images coming from different sources such as magnetic resonance imaging (MRI), computer tomography (CT), positron emission tomography (PET), to generate 3D data. Starting from these volumetric data, applications reconstruct 3D models of anatomical structures which could be manipulated and analyzed. In this paper we present a new approach for the visualization and interaction with volumetric datasets in a fully immersive environment. It allows to handle the reconstructed models directly within the virtual scene; in particular a technique is described for outlining the Volume Of Interest (VOI) functionality in a three-dimensional dataset for a visual interactive inspection and manipulation of the organ of interest.},
keywords = {Healthcare, Medical Imaging, VOI, Volume Rendering, VTK},
pubstate = {published},
tppubtype = {inproceedings}
}
Medical Imaging applications use images coming from different sources such as magnetic resonance imaging (MRI), computer tomography (CT), positron emission tomography (PET), to generate 3D data. Starting from these volumetric data, applications reconstruct 3D models of anatomical structures which could be manipulated and analyzed. In this paper we present a new approach for the visualization and interaction with volumetric datasets in a fully immersive environment. It allows to handle the reconstructed models directly within the virtual scene; in particular a technique is described for outlining the Volume Of Interest (VOI) functionality in a three-dimensional dataset for a visual interactive inspection and manipulation of the organ of interest.
Coronato, Antonio; Pietro, Giuseppe De; Gallo, Luigi
Automatic Execution of Tasks in MiPeG Proceedings Article
In: Advances in Grid and Pervasive Computing, pp. 702–709, Springer-Verlag Berlin Heidelberg, Paris, France, 2007, ISBN: 978-3-540-72359-2.
Abstract | Links | BibTeX | Tags: Grid computing, Multi-agent systems, Pervasive computing, Utility computing
@inproceedings{coronatoAutomaticExecutionTasks2007,
title = {Automatic Execution of Tasks in MiPeG},
author = { Antonio Coronato and Giuseppe De Pietro and Luigi Gallo},
doi = {10.1007/978-3-540-72360-8},
isbn = {978-3-540-72359-2},
year = {2007},
date = {2007-05-01},
booktitle = {Advances in Grid and Pervasive Computing},
volume = {4459},
pages = {702--709},
publisher = {Springer-Verlag Berlin Heidelberg},
address = {Paris, France},
series = {Lecture Notes in Computer Science (LNCS)},
abstract = {Grid computing and pervasive computing have rapidly emerged and affirmed respectively as the paradigm for high performance computing and the paradigm for user-friendly computing. The conjunction of such paradigms are now generating a new one, the Pervasive Grid Computing, which aims at extending classic grids with characteristics of pervasive computing like spontaneous and transparent integration of mobile devices, context-awareness, proactivity, and so on. In this paper, we present mechanisms and a software infrastructure for executing tasks in a pervasive grid. In particular, the proposed solution, which provides an implementation of the Utility Computing model, enables users to submit tasks and to pick up results without concerning on requiring and handling hardware resources.},
keywords = {Grid computing, Multi-agent systems, Pervasive computing, Utility computing},
pubstate = {published},
tppubtype = {inproceedings}
}
Grid computing and pervasive computing have rapidly emerged and affirmed respectively as the paradigm for high performance computing and the paradigm for user-friendly computing. The conjunction of such paradigms are now generating a new one, the Pervasive Grid Computing, which aims at extending classic grids with characteristics of pervasive computing like spontaneous and transparent integration of mobile devices, context-awareness, proactivity, and so on. In this paper, we present mechanisms and a software infrastructure for executing tasks in a pervasive grid. In particular, the proposed solution, which provides an implementation of the Utility Computing model, enables users to submit tasks and to pick up results without concerning on requiring and handling hardware resources.
Coronato, Antonio; Pietro, Giuseppe De; Gallo, Luigi
Dynamic Distribution and Execution of Tasks in Pervasive Grids Proceedings Article
In: 15th EUROMICRO International Conference on Parallel, Distributed and Network-Based Processing, pp. 419–423, IEEE Computer Society, Naples, Italy, 2007, ISBN: 0-7695-2784-1.
Abstract | Links | BibTeX | Tags: Grid computing, Mobile computing, Software architecture
@inproceedings{coronatoDynamicDistributionExecution2007,
title = {Dynamic Distribution and Execution of Tasks in Pervasive Grids},
author = { Antonio Coronato and Giuseppe De Pietro and Luigi Gallo},
doi = {10.1109/PDP.2007.39},
isbn = {0-7695-2784-1},
year = {2007},
date = {2007-02-01},
booktitle = {15th EUROMICRO International Conference on Parallel, Distributed and Network-Based Processing},
pages = {419--423},
publisher = {IEEE Computer Society},
address = {Naples, Italy},
abstract = {Grid computing and pervasive computing have rapidly emerged and affirmed respectively as the paradigm for high performance computing and the paradigm for user-friendly computing. The conjunction of such paradigms are now generating a new one, the pervasive grid computing, which aims at extending classic grids with characteristics of pervasive computing like spontaneous and transparent integration of mobile devices, context-awareness, pro-activity, and so on. In this paper, we present a software infrastructure for integrating mobile devices as active resources in a grid. In particular, it has been developed a service able to dynamically distribute and execute user's tasks on a grid of mobile and fixed devices. Mobile devices participate to the grid in a way completely transparent to their owners, hence the computational power is given without any configuration operation and in a reliable way. As well, users willing of executing their applications directly submit their code without caring of choosing and allocating resources of the grid.},
keywords = {Grid computing, Mobile computing, Software architecture},
pubstate = {published},
tppubtype = {inproceedings}
}
Grid computing and pervasive computing have rapidly emerged and affirmed respectively as the paradigm for high performance computing and the paradigm for user-friendly computing. The conjunction of such paradigms are now generating a new one, the pervasive grid computing, which aims at extending classic grids with characteristics of pervasive computing like spontaneous and transparent integration of mobile devices, context-awareness, pro-activity, and so on. In this paper, we present a software infrastructure for integrating mobile devices as active resources in a grid. In particular, it has been developed a service able to dynamically distribute and execute user's tasks on a grid of mobile and fixed devices. Mobile devices participate to the grid in a way completely transparent to their owners, hence the computational power is given without any configuration operation and in a reliable way. As well, users willing of executing their applications directly submit their code without caring of choosing and allocating resources of the grid.
Cossentino, Massimo; Sabatucci, Luca; Seidita, Valeria; Gaglio, Salvatore
An Expert System for the Design of Agents Proceedings Article
In: ICDIM, pp. 805–810, 2007.
Abstract | Links | BibTeX | Tags: Agents, Design Patterns, Software engineering
@inproceedings{cossentinoExpertSystemDesign2007,
title = {An Expert System for the Design of Agents},
author = { Massimo Cossentino and Luca Sabatucci and Valeria Seidita and Salvatore Gaglio},
doi = {10.1109/ICDIM.2007.4444323},
year = {2007},
date = {2007-01-01},
booktitle = {ICDIM},
pages = {805--810},
abstract = {The growing interest for the design and development of multi-agent systems has brought to the creation of a specific research area called Agent-Oriented Software Engineering (AOSE), specifically conceived for the development of complex systems. The development of such systems needs the support of appropriate tools that could help the designer in producing the design artefacts. We developed a tool called Metameth that may be used to define a new (agent-oriented) design process as well as to apply it. In this paper, we describe only a slice of this complex tool, specifically addressing the interaction with human actors (the designers). This subsystem is conceived as a collaborative multi-agent expert system, where each agent is capable of reasoning and adapting itself in order to support the designer in performing different kinds of design activities, regarding the use of various notations, and process life-cycles.},
keywords = {Agents, Design Patterns, Software engineering},
pubstate = {published},
tppubtype = {inproceedings}
}
The growing interest for the design and development of multi-agent systems has brought to the creation of a specific research area called Agent-Oriented Software Engineering (AOSE), specifically conceived for the development of complex systems. The development of such systems needs the support of appropriate tools that could help the designer in producing the design artefacts. We developed a tool called Metameth that may be used to define a new (agent-oriented) design process as well as to apply it. In this paper, we describe only a slice of this complex tool, specifically addressing the interaction with human actors (the designers). This subsystem is conceived as a collaborative multi-agent expert system, where each agent is capable of reasoning and adapting itself in order to support the designer in performing different kinds of design activities, regarding the use of various notations, and process life-cycles.
Franchini, Silvia; Gentile, Antonio; Grimaudo, Marco; Hung, Carlo Alberto; Impastato, Sandro; Sorbello, Filippo; Vassallo, Giorgio; Vitabile, Salvatore
A Sliced Coprocessor for Native Clifford Algebra Operations Proceedings Article
In: pp. 436–439, 2007, ISBN: 978-0-7695-2978-3.
Abstract | Links | BibTeX | Tags: Clifford algebra, Embedded coprocessors, Field Programmable Gate Arrays, FPGA prototyping, Geometric algebra
@inproceedings{franchiniSlicedCoprocessorNative2007,
title = {A Sliced Coprocessor for Native Clifford Algebra Operations},
author = { Silvia Franchini and Antonio Gentile and Marco Grimaudo and Carlo Alberto Hung and Sandro Impastato and Filippo Sorbello and Giorgio Vassallo and Salvatore Vitabile},
doi = {10.1109/DSD.2007.4341505},
isbn = {978-0-7695-2978-3},
year = {2007},
date = {2007-01-01},
pages = {436--439},
abstract = {Computer graphics applications require efficient tools to model geometric objects. The traditional approach based on compute-intensive matrix calculations is error-prone due to a lack of integration between geometric reasoning and matrix-based algorithms. Clifford algebra offers a solution to these issues since it permits specification of geometry at a coordinate-free level. The best way to exploit the symbolic computing power of geometric (Clifford) algebra is supporting its data types and operators directly in hardware. This paper outlines the architecture of S-CliffoSor (Sliced Clifford coprocesSor), a parallelizable embedded coprocessor that executes native Clifford algebra operations. S-CliffoSor is a sliced coprocessor that can be replicated for parallel execution of concurrent Clifford operations. A single slice has been designed, implemented and tested on the Celoxica Inc. RC1000 board. The experimental results show the potential to achieve a 3x speedup for Clifford sums and 4x speedup for Clifford products compared to against the analogous operations in the software library generator GAIGEN. textcopyright 2007 IEEE.},
keywords = {Clifford algebra, Embedded coprocessors, Field Programmable Gate Arrays, FPGA prototyping, Geometric algebra},
pubstate = {published},
tppubtype = {inproceedings}
}
Computer graphics applications require efficient tools to model geometric objects. The traditional approach based on compute-intensive matrix calculations is error-prone due to a lack of integration between geometric reasoning and matrix-based algorithms. Clifford algebra offers a solution to these issues since it permits specification of geometry at a coordinate-free level. The best way to exploit the symbolic computing power of geometric (Clifford) algebra is supporting its data types and operators directly in hardware. This paper outlines the architecture of S-CliffoSor (Sliced Clifford coprocesSor), a parallelizable embedded coprocessor that executes native Clifford algebra operations. S-CliffoSor is a sliced coprocessor that can be replicated for parallel execution of concurrent Clifford operations. A single slice has been designed, implemented and tested on the Celoxica Inc. RC1000 board. The experimental results show the potential to achieve a 3x speedup for Clifford sums and 4x speedup for Clifford products compared to against the analogous operations in the software library generator GAIGEN. textcopyright 2007 IEEE.