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Proceedings. IEEE/WIC/ACM International Conference on Intelligent Agent Technology, 2004. (IAT 2004).

20-24 Sept. 2004

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Displaying Results 1 - 25 of 123
  • ATSpace: a middle agent to support application oriented matchmaking and brokering services

    Publication Year: 2004, Page(s):393 - 396
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (255 KB) | HTML iconHTML

    An important problem for agents in open multiagent systems is how to find agents that match certain criteria. A number of middle agent services - such as matchmaking and brokering services - have been proposed to address this problem. However, the search capabilities of such services are relatively limited since the match criteria they use are relatively inflexible. We propose ATSpace, a model to ... View full abstract»

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  • Planning for spatially situated agents

    Publication Year: 2004, Page(s):385 - 388
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (266 KB) | HTML iconHTML

    Most often, agent-based situated simulations use reactive agents. While the use of this paradigm offers a rather natural way to build simple behaviours, it is not so easy to define complex behaviours, and these are often built ad hoc and requires precise adjustments. Moreover, reactive model is not well fitted to describe deliberate group behaviours since it is more intended to emergence. For thes... View full abstract»

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  • Traffic jams: an evolutionary investigation

    Publication Year: 2004, Page(s):381 - 384
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    Traffic at the rush hours is a big problem in every city so that city councils try to encourage citizens to choose mass transportation instead of driving cars. However, this effort is counterbalanced by the fact that travelers' utilities from car usage are more than those from taking buses in most cases. We build a traffic problem model with many agents who have the two options of choosing the car... View full abstract»

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  • Data-driven agent-based simulation of commercial barter trade

    Publication Year: 2004, Page(s):218 - 224
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (326 KB) | HTML iconHTML

    We present TRADES, a data-driven agent-based simulator for barter trade exchanges. We provide an overview of the barter trade exchange industry, focusing on the operational aspects of trade exchanges and motivating the design of our simulator. Our simulator is built by learning probabilistic models of company purchase behavior using transaction history data from an operating trade exchange. We qua... View full abstract»

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  • Analysis of mobile agents' fault-tolerant behavior

    Publication Year: 2004, Page(s):377 - 380
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (429 KB) | HTML iconHTML

    As mobile agents are the medium for implementing various executions, their behaviors are paramount for network performance. Clearly, one of the pivotal tasks ahead, if mobile agents are to have significant impact, is to explore quantitative studies on the behaviors of mobile agents, which can reveal the inherence of the mobile agent approach and ultimately guide future research. This issue, unlike... View full abstract»

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  • An integral cycle for building feasible multi-agent plans

    Publication Year: 2004, Page(s):211 - 217
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (327 KB) | HTML iconHTML

    This work proposes a multi-agent planning framework. It presents an integral cycle we developed to build feasible multi-agent plans in a dynamic context (i.e. aircraft simulation). This cycle takes into account both functional and computational features of our multi-agent planning framework. From modeling to validation, this cycle allows the management of different constraints (e.g. time, physical... View full abstract»

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  • Agent dynamic cooperation based information retrieval

    Publication Year: 2004, Page(s):365 - 368
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (270 KB) | HTML iconHTML

    We propose a dynamic cooperation model for different agents' message exchanging. Besides, we propose a new algorithm, which makes it easy to transform a traditional Boolean logical query statement into a matrix. This method allows a document might be retrieved in a clear Boolean view even it matches the query partially. On the base of them, we implement an agent-based selective information retriev... View full abstract»

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  • Utilizing fuzzy OLAP mining towards novel approach to multiagent modular reinforcement learning

    Publication Year: 2004, Page(s):197 - 203
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (327 KB) | HTML iconHTML

    This study proposes novel multiagent learning approach based on utilizing fuzzy mining for modular cooperative learning systems. It incorporates fuzziness and online analytical processing (OLAP) based mining to effectively process the information reported by agents. First, we describe a fuzzy data cube OLAP architecture to facilitate effective storage and processing of the state information report... View full abstract»

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  • Stackelberg game in VMI system with sufficient capacity considering wholesale and retail prices

    Publication Year: 2004, Page(s):361 - 364
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (253 KB) | HTML iconHTML

    This work discusses a VMI (vendor managed inventory) supply chain where one manufacturer produces and supplies a single product at a wholesale price to multiple retailers, maybe its agents, who then sell the product in dispersed and independent markets at retail prices. The manufacturer determines wholesale price, inventory replenishment cycle, and backorder quantity by maximizing its own profit w... View full abstract»

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  • e-Game: a generic auction platform supporting customizable market games

    Publication Year: 2004, Page(s):190 - 196
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (417 KB) | HTML iconHTML

    This work presents the e-Game (electronic-generic auction marketplace) platform. e-Game is a configurable on-line auction server that supports both human and software agents. A wide range of auction types are currently supported by e-Game. These are parameterized in order to allow users to tailor-make auctions according to their own needs. The main feature of e-Game is that it supports the design,... View full abstract»

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  • Speculative computation with deadline and its resource negotiation under time constraints

    Publication Year: 2004, Page(s):353 - 356
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (259 KB) | HTML iconHTML

    Speculative computation is based on abduction, and it can give result of decision in advance based on defaults under incomplete resource information. To achieve goals and reduce risks of decision, master agent in speculative computation makes efforts to obtain more information via negotiation. However, the speculative computation and negotiation have usually deadlines. In This work, framework exte... View full abstract»

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  • Speech and language interfaces for agent systems

    Publication Year: 2004, Page(s):565 - 566
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (225 KB) | HTML iconHTML

    We demonstrate prototypes of speech and language interfaces for intelligent agents. We deal with simulated agents operating in a virtual world as well as with physical agents in the form of remote controlled devices. The research underlying these prototype demonstrations involves various aspects of artificial intelligence research, in particular natural language and speech processing, and knowledg... View full abstract»

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  • Situation awareness in intelligent agents: foundations for a theory of proactive agent behavior

    Publication Year: 2004, Page(s):86 - 92
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    This work outlines a computational model of situation awareness. This model serves two purposes. First, it provides a detailed description for our everyday notion of situation awareness. Second, it offers an alternative perspective of looking into the nature and characteristics of proactive behavior in intelligent agent systems. Most of the existing definitions of proactiveness do not possess the ... View full abstract»

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  • A dynamically formed hierarchical agent organization for a distributed content sharing system

    Publication Year: 2004, Page(s):169 - 175
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (893 KB) | HTML iconHTML

    The organization and collaborative protocols of agent societies are becoming increasingly important with the growing size of agent networks. Particularly, in a multi-agent based content sharing system, a flat, peer-to-peer (P2P) agent organization is not the most efficient organization for locating relevant agents for queries. This work develops and analyzes a hierarchical agent group formation pr... View full abstract»

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  • User-aware videoconference session control using software agents

    Publication Year: 2004, Page(s):349 - 352
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (302 KB) | HTML iconHTML

    This work is focused in the proposal of a new approach based on intelligent agents for the initiation, control and adaptation of a multimedia session. Typically, multimedia sessions are managed through the SIP (session initiation protocol) Internet protocol. When the session is negotiated, very little is said at the SIP specification about how to decide on which configuration, among the possible o... View full abstract»

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  • Countering agent security vulnerabilities using an extended SENSE schema

    Publication Year: 2004, Page(s):183 - 189
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB) | HTML iconHTML

    This work discusses issues involving an intelligent self-reliant mechanism for mobile agents to detect code-tampering attacks made by malicious entities. While describing the security schema, the paper details some scenarios that make the agent vulnerable to malicious attacks. The paper also proposes an extension to the original schema enabling it to cover another security vulnerability in agent o... View full abstract»

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  • Fulfilling or violating obligations in normative multiagent systems

    Publication Year: 2004, Page(s):483 - 486
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    A theory of rational decision making in normative multi-agent systems has to distinguish among the many reasons why agents fulfill or violate obligations. We propose a classification of such reasons for single cognitive agent decision making in a single normative system, based on the increasing complexity of this agent. In the first class we only consider the agent's motivations, in the second cla... View full abstract»

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  • Theoretical analysis of the multi-agent patrolling problem

    Publication Year: 2004, Page(s):302 - 308
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (559 KB) | HTML iconHTML

    A group of agents can be used to perform patrolling tasks in a variety of domains ranging from computer network administration to computer wargame simulations. The multi-agent patrolling problem has recently received growing attention from the multi-agent community, due to the wide range of potential applications. Many algorithms based on reactive and cognitive architectures have been developed, g... View full abstract»

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  • Multiagent technologies for steel production and control

    Publication Year: 2004, Page(s):555 - 558
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1742 KB) | HTML iconHTML

    Flexible planning and realisation as well as fast reorganisation after interferences during continuous work are indispensable requirements for a competitive position on the market in the industrial sector. We present an agent-based generic solution for the planning and observation inside the steelwork "Volklingen" of the German steel company "Saarstahl AG", a global respected steel manufacturer. F... View full abstract»

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  • A time stamp control strategy for CBR based reactive navigation in dynamic environments with priorities

    Publication Year: 2004, Page(s):58 - 64
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1233 KB) | HTML iconHTML

    This work presents a CBR based reactive navigation system for autonomous robots. The main advantage of the proposed system is that it learns by experience how to deal with unexpected situations in dynamic environments. A time stamp control method has been included to deal with mobile obstacles in intersections, where there are priorities depending on the relative positions of those obstacles and t... View full abstract»

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  • A two-level framework for coalition formation via optimization and agent negotiation

    Publication Year: 2004, Page(s):441 - 445
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (275 KB) | HTML iconHTML

    We present a two-level coalition formation approach based on a centralized optimization model on the upper level, and a distributed agent-negotiation model on the lower level. This approach allows us to balance agent self-interests against a high joint utility. Experimental results show that the two-level coalition formation mechanism increases not only the overall utility of the coalition, but al... View full abstract»

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  • A fuzzy multi-agent bidding model

    Publication Year: 2004, Page(s):517 - 520
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (259 KB) | HTML iconHTML

    This work formalizes an original bidding model to be applied in complex negotiation scenarios with conflicting interests, involving multiple bidders and a single announcer agent. Agents have preferences, and the bidding model is formalized with a bidding path algorithm applied to the transportation industry. In each negotiation round every bidding agent must put forward a bid that not only meets t... View full abstract»

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  • Organization-based cooperative coalition formation

    Publication Year: 2004, Page(s):162 - 168
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (403 KB) | HTML iconHTML

    The coalition formation problem has received a considerable amount of attention in recent years. In this work we present a novel distributed algorithm that returns a solution in polynomial time and the quality of the returned solution increases as agents gain more experience. Our solution utilizes an underlying organization to guide the coalition formation process. We use reinforcement learning te... View full abstract»

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  • Multi-agent based softswitch

    Publication Year: 2004, Page(s):341 - 344
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (237 KB) | HTML iconHTML

    Softswitch is the most complicated system in next generation networks. An ideal softswitch system can produce the best efficiency/cost ratio for telecom service provider of different scale and large enterprise. It is also easy to be extended and upgraded. Multi-agent based softswitch (MABS) is given to reach the target. The architecture of MABS is presented. The cooperation of agents in MABS is de... View full abstract»

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  • Cooperative multiagent systems for the optimization of urban traffic

    Publication Year: 2004, Page(s):176 - 182
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (309 KB) | HTML iconHTML

    The risks and benefits of trusting others in a cooperative context is discussed and the notion of social rationality is used to establish these ideas in the realm of autonomous rational agents (utility maximizers). A traffic simulation is introduced to test the ideas presented in this work. The simulation consists of traffic lights controlled by cooperative autonomous agents, each of whom is given... View full abstract»

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