Stefano A. Cerri | LIRMM (original) (raw)

Papers by Stefano A. Cerri

Collaboration between Human and Artificial Societies, 1999

In this paper we summarize the results obtained so far in the course of the Fishmarket project co... more In this paper we summarize the results obtained so far in the course of the Fishmarket project concerning the study of the formalization, design and construction of agent-mediated electronic institutions (AMIs). We argue that AMIs are the most appropriate social structure for a large variety of multi-agent systems. Here we present the realization of an actual AMI, FM, inspired on the traditional fish market that we employ as a case study in our proposal for the formalization of electronic institutions.

… Models of Collaborative …, 2004

Abstract. In the last decade, the design of collaborative discovery learning environments (CDLE&#... more Abstract. In the last decade, the design of collaborative discovery learning environments (CDLE's) has received increasing attention. Such a design perspective brings up to the educational context the possibility of exploiting the so-called Model-Based Reasoning approach, by providing to learners the opportunity of collaborating while building models to represent observations. In this paper, we are concerned with the design of CDLE's in which building models instantiates as a theory formation process. Such a process is provided as ...

The far-reaching impact of the Web on society is widely recognised. The interdisciplinary study o... more The far-reaching impact of the Web on society is widely recognised. The interdisciplinary study of this impact has crystallised in the field of study known as Web Science. However, defining an agreed, shared understanding of what constitutes web science requires complex negotiation and translations of understandings across component disciplines, national cultures and educational traditions. Some individual institutions have already established particular curricula, and discussions in the Web Science Curriculum Workshop series have marked the territory to some extent. This paper reports on a process being adopted across a consortium of partners to systematically create a shared understanding of what constitutes web science. It records and critiques the processes instantiated to agree a common curriculum, and presents a framework for future discussion and development.

2013 Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises, 2013

Electronic collaboration is a pervasive concept that influences practically all human domains, fr... more Electronic collaboration is a pervasive concept that influences practically all human domains, from work to learning to entertainment; making possible the collaboration between two or more distant persons. To encourage the exploitation of this new phenomenon, we have to demonstrate its benefits using validated evaluating methods that ensure the reliability of its effects. However, e-collaboration environments are not just classical human-computer interfaces: the criteria for their evaluation include teleological properties like the collaboration goal, the tasks and also particular constraints like the connectivity, the used soft platform, the quality of services and the behavior of the collaboration members. Our research work attempts to propose a reusable e-collaboration evaluation method. To attain this goal, we began by carrying out some abstractions about e-collaboration sessions giving a more rigorous vision about these environments. Once this step accomplished, the evaluation work based on the previously cited vision can be started.

One of the major challenges of current ITS research is scaling up to real world learning scenario... more One of the major challenges of current ITS research is scaling up to real world learning scenarios. Another one, strictly interwoven, is to integrate human learning with other human activities, such as constructing theories or performing experiments, as it is the case in e-Science. The paper describes the results of the ,first phase of an ,ambitious project: EnCOrE for

European Conference on Artificial Intelligence, 1984

Collaborative Dialogue Technologies in Distance Learning, 1994

In previous papers we have presented the NAT* LAB methodology for student model acquisition and s... more In previous papers we have presented the NAT* LAB methodology for student model acquisition and suggested potential extensions of parts of the methodology to knowledge acquisition and knowledge communication in Informative, Tutoring and Design dialogue management systems (Cerri and Mclntyre, 1991). In this paper we wish to refine the potential extensions of the methodology for managing collaborative dialogues generic with respect to various dialogue types, partner's types (human or computer) and partner's ...

Collaborative Dialogue Technologies in Distance Learning, 1994

The paper reports about the writer's interpretation of the Models and Systems st... more The paper reports about the writer's interpretation of the Models and Systems stream of work from a methodological viewpoint more than from a technical one. Inputs were provided by the discussions held during the workshop among the participants that contributed to the Models and Systems working group.

Lecture Notes in Computer Science, 2002

Recent work in our teams focused on a methodology, called Phi-calculus, the aim of which is to st... more Recent work in our teams focused on a methodology, called Phi-calculus, the aim of which is to study the process of interaction between a human-or a group-and a machine when the former is interested on using certain capabilities of the latter in order to improve the task of explicitating knowledge in a coherent and unambiguous fashion. Our more recent work consisted on examining how Phi-calculus might be instantiated in the context of Human Education. The result is a Web-served Learning Environment, called PhiInEd, to assist ...

Learning GRID of Excellence, 2005

International Conference on Information Technology: Research and Education, 2003. Proceedings. ITRE2003., 2003

Abstract Needs for bidirectional nonvertical access to information and learning are evident and u... more Abstract Needs for bidirectional nonvertical access to information and learning are evident and urgent. We cannot impose pervasive, huge investments to developing country's users forcing them to wait. Peer-to-peer architectures integrated with interoperable XML documents are currently the most suited means for direct, bidirectional access to information within virtual communities. We show how such an architecture may improve the effectiveness of a previously developed tool for literacy in Brazil, at the same time as it ...

User Modeling and User-Adapted Interaction, 2015

In this paper, we propose a game adaptation technique that seeks to improve the training outcomes... more In this paper, we propose a game adaptation technique that seeks to improve the training outcomes of stroke patients during a therapeutic session. This technique involves the generation of customized game levels, which difficulty is dynamically adjusted to the patients' abilities and performance. Our goal was to evaluate the effect of this adaptation strategy on the training outcomes of post-stroke patients during a therapeutic session. We hypothesized that a dynamic difficulty adaptation strategy would have a more positive effect on the training outcomes of patients than two control strategies, incremental difficulty adaptation and random difficulty adaptation. To test these strategies, we developed three versions of PRehab, a serious game for upper-limb rehabilitation. Seven stroke patients and three therapists participated in the experiment, and played all three versions of the game on a graphics tablet. The results of the experiment show that our dynamic adaptation technique increases movement amplitude during a therapeutic session. This finding may serve as a basis to improve patient recovery.

Avec le Web 2.0, les utilisateurs, devenus contributeurs, ont pris une place centrale dans les pr... more Avec le Web 2.0, les utilisateurs, devenus contributeurs, ont pris une place centrale dans les processus de consommation et de production de connaissances ; cependant la paternité des contributions est souvent perdue lors de l'indexation de l'information. VIEWPOINTS est un formalisme de représentation des connaissances centré sur le point de vue individuel, humain ou artificiel. Nous considérons trois types d'objets de connaissance : les documents (supports), les agents (émetteurs) et les topics (descripteurs). Un viewpoint émis par un agent exprime son opinion sur la proximité entre deux objets. Les viewpoints permettent de définir et de calculer une distance entre objets qui évolue au fil des interactions (requêtes et retours d'utilisation) et de l'ajout de nouveaux viewpoints. Un prototype de moteur de recherche pour des données de publications scientifiques tirées de HAL-LIRMM montre comment VIEWPOINTS peut faire émerger, de façon transparente, une intelligence collective à partir des interactions des utilisateurs contributeurs.

ABSTRACT Business intelligence is crucial for synergy and competitiveness in the world of busines... more ABSTRACT Business intelligence is crucial for synergy and competitiveness in the world of business; the challenge is to capitalize upon the experiences, relationships and knowledge of all members over time. In this paper, we address business intelligence and more generally collective intelligence through a social approach based on viewpoints. The collective knowledge is stored within a bi-partite graph populated by agents, documents and topics on one side and by viewpoints on the other side. Viewpoints consist in labelled triples (agent, document, topic). We define a semantic distance on this structure. We then engage a selectionist process: information retrieval is based on existing viewpoints while feedbacks yield new viewpoints. The implemented framework and algorithms are tested through a simulation.

Intelligent Tutoring Media, 1990

Abstract This paper describes TRILL, a tutoring system which teaches about the basic Lisp datatyp... more Abstract This paper describes TRILL, a tutoring system which teaches about the basic Lisp datatypes. While the original design of TRILL was addressing a significant subset of Lisp, the first implementation reduced the set of concepts to its basic datastructures. The paper consists of an outline of the TRILL system as it was first designed, its first implementation, and a summary of work currently in progress, both at the Open University and at DID A∗ EL, to extend some of the ideas used in the first version of the TRILL system.

2013 Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises, 2013

ABSTRACT Electronic collaboration is a pervasive concept that influences practically all human do... more ABSTRACT Electronic collaboration is a pervasive concept that influences practically all human domains, from work to learning to entertainment; making possible the collaboration between two or more distant persons. To encourage the exploitation of this new phenomenon, we have to demonstrate its benefits using validated evaluating methods that ensure the reliability of its effects. However, e-collaboration environments are not just classical human-computer interfaces: the criteria for their evaluation include teleological properties like the collaboration goal, the tasks and also particular constraints like the connectivity, the used soft platform, the quality of services and the behavior of the collaboration members. Our research work attempts to propose a reusable e-collaboration evaluation method. To attain this goal, we began by carrying out some abstractions about e-collaboration sessions giving a more rigorous vision about these environments. Once this step accomplished, the evaluation work based on the previously cited vision can be started.

Lecture Notes in Computer Science, 2004

The historical domain of ITS is currently confronted with a double challenge. On the one side the... more The historical domain of ITS is currently confronted with a double challenge. On the one side the availability of Internet worldwide and the globalisation have tremendously amplified the demand for distance learning (tutoring, training, bidirectional access to Information, ubiquitous and lifelong education, learning as a side effect of interaction). On the other, technologies evolve with an unprecedented speed as well as their corresponding computational theories, models, tools, applications. One of the most important current ...

Encyclopedia of the Sciences of Learning, 2012

Biological Cybernetics, 1977

A statistical analysis of digital a posteriori Wiener filtering as applied to time averaging tech... more A statistical analysis of digital a posteriori Wiener filtering as applied to time averaging techniques for biological signals is presented. The authors show that when ap.w.f. is applied to the average signal hardly any effect can be expected, where as when applied to the individual responses, ap.w.f. improves the signal to noise ratio. The applied analysis leads to a simple test to check whether a prescribed frequency component is present.

Applied Artificial Intelligence, 2003

There were 19 submissions from 11 countries. Each paper has rigorously been reviewed by at least ... more There were 19 submissions from 11 countries. Each paper has rigorously been reviewed by at least two international experts who were mostly members of the program committee. The reviewing process of each paper was coordinated by the co-chairs. As a result, 17 papers were accepted for presentation in this workshop. Unfortunately, two accepted papers were not included in the proceedings of DCAP02 because the authors cannot present this workshop.

Collaboration between Human and Artificial Societies, 1999

In this paper we summarize the results obtained so far in the course of the Fishmarket project co... more In this paper we summarize the results obtained so far in the course of the Fishmarket project concerning the study of the formalization, design and construction of agent-mediated electronic institutions (AMIs). We argue that AMIs are the most appropriate social structure for a large variety of multi-agent systems. Here we present the realization of an actual AMI, FM, inspired on the traditional fish market that we employ as a case study in our proposal for the formalization of electronic institutions.

… Models of Collaborative …, 2004

Abstract. In the last decade, the design of collaborative discovery learning environments (CDLE&#... more Abstract. In the last decade, the design of collaborative discovery learning environments (CDLE's) has received increasing attention. Such a design perspective brings up to the educational context the possibility of exploiting the so-called Model-Based Reasoning approach, by providing to learners the opportunity of collaborating while building models to represent observations. In this paper, we are concerned with the design of CDLE's in which building models instantiates as a theory formation process. Such a process is provided as ...

The far-reaching impact of the Web on society is widely recognised. The interdisciplinary study o... more The far-reaching impact of the Web on society is widely recognised. The interdisciplinary study of this impact has crystallised in the field of study known as Web Science. However, defining an agreed, shared understanding of what constitutes web science requires complex negotiation and translations of understandings across component disciplines, national cultures and educational traditions. Some individual institutions have already established particular curricula, and discussions in the Web Science Curriculum Workshop series have marked the territory to some extent. This paper reports on a process being adopted across a consortium of partners to systematically create a shared understanding of what constitutes web science. It records and critiques the processes instantiated to agree a common curriculum, and presents a framework for future discussion and development.

2013 Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises, 2013

Electronic collaboration is a pervasive concept that influences practically all human domains, fr... more Electronic collaboration is a pervasive concept that influences practically all human domains, from work to learning to entertainment; making possible the collaboration between two or more distant persons. To encourage the exploitation of this new phenomenon, we have to demonstrate its benefits using validated evaluating methods that ensure the reliability of its effects. However, e-collaboration environments are not just classical human-computer interfaces: the criteria for their evaluation include teleological properties like the collaboration goal, the tasks and also particular constraints like the connectivity, the used soft platform, the quality of services and the behavior of the collaboration members. Our research work attempts to propose a reusable e-collaboration evaluation method. To attain this goal, we began by carrying out some abstractions about e-collaboration sessions giving a more rigorous vision about these environments. Once this step accomplished, the evaluation work based on the previously cited vision can be started.

One of the major challenges of current ITS research is scaling up to real world learning scenario... more One of the major challenges of current ITS research is scaling up to real world learning scenarios. Another one, strictly interwoven, is to integrate human learning with other human activities, such as constructing theories or performing experiments, as it is the case in e-Science. The paper describes the results of the ,first phase of an ,ambitious project: EnCOrE for

European Conference on Artificial Intelligence, 1984

Collaborative Dialogue Technologies in Distance Learning, 1994

In previous papers we have presented the NAT* LAB methodology for student model acquisition and s... more In previous papers we have presented the NAT* LAB methodology for student model acquisition and suggested potential extensions of parts of the methodology to knowledge acquisition and knowledge communication in Informative, Tutoring and Design dialogue management systems (Cerri and Mclntyre, 1991). In this paper we wish to refine the potential extensions of the methodology for managing collaborative dialogues generic with respect to various dialogue types, partner's types (human or computer) and partner's ...

Collaborative Dialogue Technologies in Distance Learning, 1994

The paper reports about the writer's interpretation of the Models and Systems st... more The paper reports about the writer's interpretation of the Models and Systems stream of work from a methodological viewpoint more than from a technical one. Inputs were provided by the discussions held during the workshop among the participants that contributed to the Models and Systems working group.

Lecture Notes in Computer Science, 2002

Recent work in our teams focused on a methodology, called Phi-calculus, the aim of which is to st... more Recent work in our teams focused on a methodology, called Phi-calculus, the aim of which is to study the process of interaction between a human-or a group-and a machine when the former is interested on using certain capabilities of the latter in order to improve the task of explicitating knowledge in a coherent and unambiguous fashion. Our more recent work consisted on examining how Phi-calculus might be instantiated in the context of Human Education. The result is a Web-served Learning Environment, called PhiInEd, to assist ...

Learning GRID of Excellence, 2005

International Conference on Information Technology: Research and Education, 2003. Proceedings. ITRE2003., 2003

Abstract Needs for bidirectional nonvertical access to information and learning are evident and u... more Abstract Needs for bidirectional nonvertical access to information and learning are evident and urgent. We cannot impose pervasive, huge investments to developing country's users forcing them to wait. Peer-to-peer architectures integrated with interoperable XML documents are currently the most suited means for direct, bidirectional access to information within virtual communities. We show how such an architecture may improve the effectiveness of a previously developed tool for literacy in Brazil, at the same time as it ...

User Modeling and User-Adapted Interaction, 2015

In this paper, we propose a game adaptation technique that seeks to improve the training outcomes... more In this paper, we propose a game adaptation technique that seeks to improve the training outcomes of stroke patients during a therapeutic session. This technique involves the generation of customized game levels, which difficulty is dynamically adjusted to the patients' abilities and performance. Our goal was to evaluate the effect of this adaptation strategy on the training outcomes of post-stroke patients during a therapeutic session. We hypothesized that a dynamic difficulty adaptation strategy would have a more positive effect on the training outcomes of patients than two control strategies, incremental difficulty adaptation and random difficulty adaptation. To test these strategies, we developed three versions of PRehab, a serious game for upper-limb rehabilitation. Seven stroke patients and three therapists participated in the experiment, and played all three versions of the game on a graphics tablet. The results of the experiment show that our dynamic adaptation technique increases movement amplitude during a therapeutic session. This finding may serve as a basis to improve patient recovery.

Avec le Web 2.0, les utilisateurs, devenus contributeurs, ont pris une place centrale dans les pr... more Avec le Web 2.0, les utilisateurs, devenus contributeurs, ont pris une place centrale dans les processus de consommation et de production de connaissances ; cependant la paternité des contributions est souvent perdue lors de l'indexation de l'information. VIEWPOINTS est un formalisme de représentation des connaissances centré sur le point de vue individuel, humain ou artificiel. Nous considérons trois types d'objets de connaissance : les documents (supports), les agents (émetteurs) et les topics (descripteurs). Un viewpoint émis par un agent exprime son opinion sur la proximité entre deux objets. Les viewpoints permettent de définir et de calculer une distance entre objets qui évolue au fil des interactions (requêtes et retours d'utilisation) et de l'ajout de nouveaux viewpoints. Un prototype de moteur de recherche pour des données de publications scientifiques tirées de HAL-LIRMM montre comment VIEWPOINTS peut faire émerger, de façon transparente, une intelligence collective à partir des interactions des utilisateurs contributeurs.

ABSTRACT Business intelligence is crucial for synergy and competitiveness in the world of busines... more ABSTRACT Business intelligence is crucial for synergy and competitiveness in the world of business; the challenge is to capitalize upon the experiences, relationships and knowledge of all members over time. In this paper, we address business intelligence and more generally collective intelligence through a social approach based on viewpoints. The collective knowledge is stored within a bi-partite graph populated by agents, documents and topics on one side and by viewpoints on the other side. Viewpoints consist in labelled triples (agent, document, topic). We define a semantic distance on this structure. We then engage a selectionist process: information retrieval is based on existing viewpoints while feedbacks yield new viewpoints. The implemented framework and algorithms are tested through a simulation.

Intelligent Tutoring Media, 1990

Abstract This paper describes TRILL, a tutoring system which teaches about the basic Lisp datatyp... more Abstract This paper describes TRILL, a tutoring system which teaches about the basic Lisp datatypes. While the original design of TRILL was addressing a significant subset of Lisp, the first implementation reduced the set of concepts to its basic datastructures. The paper consists of an outline of the TRILL system as it was first designed, its first implementation, and a summary of work currently in progress, both at the Open University and at DID A∗ EL, to extend some of the ideas used in the first version of the TRILL system.

2013 Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises, 2013

ABSTRACT Electronic collaboration is a pervasive concept that influences practically all human do... more ABSTRACT Electronic collaboration is a pervasive concept that influences practically all human domains, from work to learning to entertainment; making possible the collaboration between two or more distant persons. To encourage the exploitation of this new phenomenon, we have to demonstrate its benefits using validated evaluating methods that ensure the reliability of its effects. However, e-collaboration environments are not just classical human-computer interfaces: the criteria for their evaluation include teleological properties like the collaboration goal, the tasks and also particular constraints like the connectivity, the used soft platform, the quality of services and the behavior of the collaboration members. Our research work attempts to propose a reusable e-collaboration evaluation method. To attain this goal, we began by carrying out some abstractions about e-collaboration sessions giving a more rigorous vision about these environments. Once this step accomplished, the evaluation work based on the previously cited vision can be started.

Lecture Notes in Computer Science, 2004

The historical domain of ITS is currently confronted with a double challenge. On the one side the... more The historical domain of ITS is currently confronted with a double challenge. On the one side the availability of Internet worldwide and the globalisation have tremendously amplified the demand for distance learning (tutoring, training, bidirectional access to Information, ubiquitous and lifelong education, learning as a side effect of interaction). On the other, technologies evolve with an unprecedented speed as well as their corresponding computational theories, models, tools, applications. One of the most important current ...

Encyclopedia of the Sciences of Learning, 2012

Biological Cybernetics, 1977

A statistical analysis of digital a posteriori Wiener filtering as applied to time averaging tech... more A statistical analysis of digital a posteriori Wiener filtering as applied to time averaging techniques for biological signals is presented. The authors show that when ap.w.f. is applied to the average signal hardly any effect can be expected, where as when applied to the individual responses, ap.w.f. improves the signal to noise ratio. The applied analysis leads to a simple test to check whether a prescribed frequency component is present.

Applied Artificial Intelligence, 2003

There were 19 submissions from 11 countries. Each paper has rigorously been reviewed by at least ... more There were 19 submissions from 11 countries. Each paper has rigorously been reviewed by at least two international experts who were mostly members of the program committee. The reviewing process of each paper was coordinated by the co-chairs. As a result, 17 papers were accepted for presentation in this workshop. Unfortunately, two accepted papers were not included in the proceedings of DCAP02 because the authors cannot present this workshop.