IEEE/WIC International Conference on Intelligent Agent Technology, 2003. IAT 2003.

13-16 Oct. 2003

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Displaying Results 1 - 25 of 110
  • Odaies: ontology-driven adaptive Web information extraction system

    Publication Year: 2003, Page(s):454 - 460
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (381 KB) | HTML iconHTML

    This paper proposes an ontology-driven self-adapting approach in the semi-structured Web information extraction field, where ontology provides semantic support and plays a central role during the extraction process. It outperforms traditional wrapper systems in adaptiveness and maintenance. Firstly, we build a domain-dependant ontology. Then we design three templates generating algorithms, which h... View full abstract»

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  • A hybrid architecture for autonomous navigation using a CBR reactive layer

    Publication Year: 2003, Page(s):225 - 232
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1356 KB) | HTML iconHTML

    This paper presents a hybrid architecture for autonomous robot navigation. It includes a deliberative layer that hierarchically extracts a global path from a geometrical-topological model of the environment. This path is decomposed into a set of partial goals. Then, a new case-based reasoning based reactive layer capable of learning new local navigation strategies moves from each partial goal to t... View full abstract»

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  • Soft gene, role, agent: MABS learns from sociology

    Publication Year: 2003, Page(s):450 - 453
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB) | HTML iconHTML

    The homogeneity between human being and software agents is presented. Based on which a new definition for agent is proposed. An agent is made of certain soft genes and roles. Such agents can be more appropriate for dynamic open systems analysis, design and implementation. Results are given. View full abstract»

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  • Multi-agent planning as a coordination model for self-organized systems

    Publication Year: 2003, Page(s):218 - 224
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (355 KB) | HTML iconHTML

    Self-organized systems need sophisticated coordination mechanisms. This paper proposes a model based on multi-agent planning to coordinate such systems. In our application framework: tactical aircraft simulation, it is important to deal with environment changes. For that, we based our approach on the hybrid automata formalism. The main advantage of this formalism is to model different clocks evolv... View full abstract»

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  • Communicative acts of Elvin-enhanced mobile agents

    Publication Year: 2003, Page(s):446 - 449
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (447 KB) | HTML iconHTML

    Elvin is a scalable and efficient publish-subscribe event notification system. We provide an interpretation, in terms of communicative acts of the Elvin messages that are used by mobile agents in order to utilize Elvin services. We provide a basis for integrating Elvin services within a multi-agent community, i.e. agents can interact with Elvin at the agent communication language level, and show h... View full abstract»

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  • Dynamic inference of perceptual categories in negotiating agents

    Publication Year: 2003, Page(s):89 - 95
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (289 KB) | HTML iconHTML

    In this paper, we describe an approach by which one agent may infer the categorical preference structure of another agent in relation to a set of alternative proposals made in negotiation. The categorical preferences are inferred over a sequence of proposals, as preferences are disclosed one at a time. We seek to avoid strong ontological commitment between the agents, making only minimal assumptio... View full abstract»

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  • The role of agents in distributed data mining: issues and benefits

    Publication Year: 2003, Page(s):211 - 217
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (295 KB) | HTML iconHTML

    The increasing demand to extend data mining technology to data sets inherently distributed among a large number of autonomous and heterogeneous sources over a network with limited bandwidth has motivated the development of several approaches to distributed data mining and knowledge discovery, of which only a few make use of agents. We briefly review existing approaches and argue for the potential ... View full abstract»

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  • Knowledge sharing in default reasoning based multi-agent systems

    Publication Year: 2003, Page(s):576 - 579
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (257 KB) | HTML iconHTML

    This paper brings an idea of a multi-agent system, in which agents use logical programming for reasoning and interaction. To cope with changing environment agents use default rules and default reasoning, which enables them to reason using default and concise knowledge received from other agents (i.e. rules and exceptions). Moreover predicates in the systems are classified according to the degree o... View full abstract»

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  • MMASS approach to localization problems

    Publication Year: 2003, Page(s):357 - 363
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (285 KB) | HTML iconHTML

    The paper presents the application of the multilayered multi agent situated system (MMASS) model to localization problems. In the context of multi agent system based modelling and distributed problem solving, the MMASS model allows explicit representation of the environment structure where agents are situated, and provides spatial dependant agent behavior and interaction mechanisms. These aspects ... View full abstract»

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  • Formal framework for adaptive multi-agent systems

    Publication Year: 2003, Page(s):442 - 445
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2243 KB) | HTML iconHTML

    Evolution of software challenges multi-agent systems to be adaptive and the adaptation capabilities should be provided at both the agent level and the system level. In this paper, we study the adaptation of multi-agent systems from the system level and describe a formal framework for multi-agent systems with adaptation capabilities. In the framework, agents are indirectly interconnected via roles ... View full abstract»

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  • Classification rule discovery with ant colony optimization

    Publication Year: 2003, Page(s):83 - 88
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (385 KB) | HTML iconHTML

    Ant-based algorithms or ant colony optimization (ACO) algorithms have been applied successfully to combinatorial optimization problems. More recently, Parpinelli and colleagues applied ACO to data mining classification problems, where they introduced a classification algorithm called Ant_Miner. In this paper, we present an improvement to Ant_Miner (we call it Ant_Miner3). The propos... View full abstract»

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  • Problem-solving in open environments

    Publication Year: 2003, Page(s):203 - 210
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (291 KB) | HTML iconHTML

    With the increasing use of the Internet, many problem-solving tasks such as resource allocation, scheduling, planning, and configuration pose themselves in an open setting involving multiple participants. Existing search-based problem-solving techniques are based on the closed-world assumption and require that all options be collected before problem-solving can start. This approach of turning the ... View full abstract»

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  • Person name identification in Chinese documents using finite state automata

    Publication Year: 2003, Page(s):478 - 481
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (237 KB) | HTML iconHTML

    This research is about automatic identification and extraction of person names in Chinese text documents. Solutions to this problem have immediate and extensive applications in many areas especially in Web Intelligent Agents related applications such as Web search engines, Web data mining, and automatic Web information analysis. We have noted that while finite state automata (FSA) based techniques... View full abstract»

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  • Introducing software agents to support a Web-based collective activity

    Publication Year: 2003, Page(s):570 - 575
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (279 KB) | HTML iconHTML

    This paper describes a multi agent approach of the organisation of a collective activity within a pedagogical context. We consider pedagogical situations where learners have to explicitly define the articulation of their collective work and then achieve the different tasks they have defined. Our objective is to support them by taking in charge some of these tasks in a way that emphasizes an explic... View full abstract»

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  • Efficiency of emergent constraint satisfaction in small-world and random agent networks

    Publication Year: 2003, Page(s):304 - 310
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (350 KB) | HTML iconHTML

    In this paper, we study the efficiency of emergent constraint satisfaction in small-world and random agent networks. We find that emergent constraint satisfaction in a small-world network is less efficient than in some other networks (e.g., regular networks). Further, we find that this finding holds in almost all random networks. Based on these observations, we study the relationship between the e... View full abstract»

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  • Multi-agent technology for distributed data mining and classification

    Publication Year: 2003, Page(s):438 - 441
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (313 KB) | HTML iconHTML

    The core problem of multi-agent distributed data mining technology not concern particular data mining techniques although the latter is now paid the most attention. Its core problem concerns collaborative work of distributed software in design of multi-agent system destined for distributed data mining and classification. The paper presents the developed and implemented distributed data mining tech... View full abstract»

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  • Discovery of emergent natural laws by hierarchical multi-agent systems

    Publication Year: 2003, Page(s):75 - 82
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (457 KB) | HTML iconHTML

    This paper defines an approach to simulation of natural systems, inspired by complex systems theory. A complex natural system is modeled as a multi-agent simulation system, agents representing living organisms, physical entities or environmental processes. Agents and their interactions can be aggregated to higher-level group agents. The properties and behavior of these group agents are determined ... View full abstract»

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  • Integrative negotiation in complex organizational agent systems

    Publication Year: 2003, Page(s):140 - 146
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB) | HTML iconHTML

    This paper introduces an integrative negotiation mechanism, which enables agents to choose any attitude from the extremes of self-interested and fully cooperative to those that are partially self-interested and partially cooperative. Experimental work verifies this mechanism and explores the question whether it always improves the social welfare to have an agent be completely cooperative. It is fo... View full abstract»

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  • Belief revision for adaptive negotiation agents

    Publication Year: 2003, Page(s):196 - 202
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4161 KB)

    Existing negotiation agents are primitive in terms of what they can learn and how responsive they are towards the changing negotiation contexts. These weaknesses can be alleviated if an expressive representation language is used to represent negotiation contexts and a sound inference mechanism is applied to reason about the preferential changes arising in these negotiation contexts. This paper ill... View full abstract»

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  • A programming language for autonomous and mobile agents

    Publication Year: 2003, Page(s):474 - 477
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (221 KB) | HTML iconHTML

    This paper proposes a language called CLAIM for computational language for autonomous intelligent and mobile agents. CLAIM allows to design multi-agent systems that support both stationary and mobile agents. Agents designed thanks to CLAIM are endowed with cognitive capabilities (e.g. reasoning), are able to communicate with other agents (send and receive several kinds of messages) and are mobile.... View full abstract»

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  • Modeling the behaviors of players in competitive environments

    Publication Year: 2003, Page(s):566 - 569
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (370 KB) | HTML iconHTML

    This paper is concerned with the modeling of the behavior of players operating in a competitive environment that is characterized by interactions amongst players or groups of players. Thus the paper describes a new, online, hierarchical, probabilistic modeling architecture that is based on hidden Markov models (HMMs). For the purpose of online behavior recognition, a probabilistic decision tree is... View full abstract»

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  • Combining reactive and deliberative agents for complete ecosystems in infospheres

    Publication Year: 2003, Page(s):297 - 303
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (306 KB) | HTML iconHTML

    The diversity of resources and information in real infospheres calls for artificial ecosystems with a diversity of interacting agents ranging from reactive to deliberative paradigms and maintaining the information ecology. After discussing the notion of infosphere and some interests of the XML family for such a world, this paper provides examples showing the interest of such hybrid systems. View full abstract»

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  • On need-driven proactive information exchanges in agent teams

    Publication Year: 2003, Page(s):350 - 356
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (297 KB) | HTML iconHTML

    Members of high-performing human teams can often anticipate information needs of teammates and offer relevant information to them proactively. Such capabilities are highly desirable for agent teams to achieve better teamwork processes for supporting information gathering, information fusion, and decision makings of teammates. This paper presents a framework for formally specifying proactive agent ... View full abstract»

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  • Q-learning automaton

    Publication Year: 2003, Page(s):432 - 437
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (479 KB) | HTML iconHTML

    Reinforcement learning is the problem faced by a controller that must learn behavior through trial and error interactions with a dynamic environment. The controller's goal is to maximize reward over time, by producing an effective mapping of states of actions called policy. To construct the model of such systems, we present a generalized learning automaton approach with Q-learning behaviors. Compa... View full abstract»

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  • Artificial software agents on thin double auction markets: a human trader experiment

    Publication Year: 2003, Page(s):400 - 407
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (318 KB) | HTML iconHTML

    This paper studies how software agents influence the market behavior of human traders. Software agents with a passive arbitrage seeking strategy are introduced in a double auction market experiment with human subjects in the laboratory. As a treatment variable, the influence of information on the existence of software agents is investigated. We found that common knowledge about the presence of sof... View full abstract»

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