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Systems, Man, and Cybernetics, 2001 IEEE International Conference on

Date 7-10 Oct. 2001

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  • 2001 IEEE International Conference on Systems, Man and Cybernetics [front matter]

    Page(s): 0_1 - 0_56
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  • A cortical network controller for control of voluntary movements in robotics systems

    Page(s): 3002A - 33007 vol.5
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    A cortical network for voluntary movement control within constraints from neurophysiology and motor psychophysics is developed. A neural controller is proposed to track the desired joint trajectories of a single link controlled by an agonist-antagonist pair of actuators with muscle-like properties. The system is capable of executing voluntary reaching movements, with a typical bell-shaped velocity profile, under unexpected load conditions. The goals of this research work are: (1) to apply the knowledge of human neuro-musculo-skeletal motion control to a biomechanically designed, neural controlled, robotic system, and (2) to demonstrate that such system is able to respond voluntarily similar to human movements on an experimental platform. Through experimental performance results, we shown that neural controller exhibits key kinematic properties of human movements, dynamics compensation, and asymmetric bell-shaped velocity profiles View full abstract»

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  • Life circle economic efficiency analysis

    Page(s): 3385 - 3390 vol.5
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    Generalized life cycle of concept, design, development and maintenance is studied., Various technological and managerial strategies were estimated, such as design for manufacturing, quality for manufacturing and relatively new fault tolerant design. Comparative efficiency of these approaches were analyzed. Life Circle analysis were developed based on the model of semi-Markov processes. Shown that fault-tolerant systems have advances over those based on the traditional approaches for long Life Circles View full abstract»

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  • Real-time 3D model sharing conference system based on agent and VRML

    Page(s): 3355 - 3360 vol.5
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    The contemporary design and assessment of products press more and more emphasis on the cooperation of teams. The environment for distributed cooperation becomes especially important. Meanwhile using three-dimensional models to express the information of the product is the most intuitionistic. This paper deals with several key technologies and uses them to develop an agent-based real-time 3D model sharing conference system. It uses VRML to visualize artificial joints models, takes advantage of Microsoft NetMeeting SDK and integrates the multi-media conference function of the NetMeeting. To achieve the best real-time performance, we used distributed file system architecture and only transferred controlling commands among distributed participants. This system has been successfully used in "artificial joint fast implanting" project of National High Technology Plan 863/CIMS View full abstract»

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  • Simulation of robot path planning by 3-dimensional (3D) visualization using neuro fuzzy systems (NFS)

    Page(s): 2974 - 2979 vol.5
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    A great deal of interest has been shown in the literature in developing different clustering techniques. The main objective of clustering is to select a reduced data set from an original data set so that the subsequent portion of the problem can be handled by taking less computational time. The purpose of the paper is to show that sometimes the clustering techniques do not take into account the critical object points which are to be included in the subsequent portion of problem. A 3D visualization of a robot path to avoid an obstacle has been simulated. By using only clustering techniques, the mobile robot in the simulation of the virtual lab is unable to avoid the obstacle. However, when some critical points are forced into the clustered data, the performance of avoiding an obstacle is relatively improved. The obstacle avoidance problem can be handled in a computationally intensive way. A procedure to handle this problem is discussed. The modified clustering technique may be able to draw better results to implement this problem View full abstract»

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  • Incremental parsing for interactive natural language interface

    Page(s): 2880 - 2885 vol.5
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    The paper proposes an effective incremental parsing method for such interactive natural language processing systems as real-time dialogue systems, simultaneous machine interpreting systems, etc. This method produces the analysis of the input while it is being received. It can efficiently deal with not only the normal input, which is piecemeal addition to the input from left to right, but also such changes of the input as insertion and deletion. For such changes of the input, this method exploits parts of the previous analyses. We implemented this method on a workstation and conducted an experiment. We confirm that the method can be expected to be useful for an online language processing system View full abstract»

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  • WAVES: towards real time laboratory experiments in cyberspace

    Page(s): 3470 - 3474 vol.5
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    This paper describes the architecture of a Web-based audio/video educational system for real-time laboratory experiments through the Internet. The goal of the WAVES (Web-based Audio Video Educational Systems) project is to develop an open and integrated platform for online laboratory experimentation, computer simulation, and course instruction using the Internet for research and teaching in modeling, design, analysis, and control of dynamical systems. The project is unique in that students can conduct hardware lab experiments via the Internet and receive real-time data feedback and audio/video feedback of experimented results. Although many similar Internet-based tools have been developed throughout the last two years, very few of them encompass "hands-on" experiments with actual laboratory hardware. Since Internet-based hardware systems can be shared and scheduled for use by a large number of researchers and students in various locations, the WAVES platform is a cost-effective way to address the issue of "hands-on" experience for students. In our current implementation, a three layer architecture is used, i.e., the clients, the dispatcher, and the coordinators. First, the clients will issue tasks and receive feedback for conducting a specific lab experiment; then the dispatcher deals with the control and communication between the clients and coordinators; finally the coordinators conduct the actual experiment through hardware setups, simulation models, and database systems View full abstract»

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  • A tabu search based on simulation of adaptive fish behavior and its application to flow shop scheduling problems

    Page(s): 2980 - 2985 vol.5
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    Tabu search (TS) is a stochastic global optimization algorithm, which has been proved to be efficient in solving various combinatorial optimization problems. In this paper a TS with a new technique restricting the neighbors of the current solution is proposed to solve flow shop scheduling problems. An idea obtained from a simulation study on the adaptive behavior of a fish school is used to determine a parameter necessary for neighborhood construction. In order to obtain a better suboptimal solution in a reasonable computation time, the parameter is determined depending on the characteristics of the job data. The validity of the proposed TS is examined through computer experiments. Comparison of the result is made successfully among the proposed TS, the genetic algorithm, and another TS proposed in our earlier paper View full abstract»

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  • Using unsuccessful auction bids to identify latent demand

    Page(s): 2911 - 2916 vol.5
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    We propose using the information revealed through auctions, including in particular the unsuccessful bids, to identify latent demand. Applied to combinatorial auctions for bundles of goods, this information can identify new bundles with particularly high valuations, expressed by their high complementarity. We present a simple algorithm for identifying these bundles, suitable for use with agent-based ecommerce systems View full abstract»

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  • A neural network architecture to learn hand posture definition

    Page(s): 3013 - 3018 vol.5
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    The goal of our work is to propose some solutions to hand posture definition and learning process during object manipulation and grasping. The main idea is to try to transfer relevant central nervous system strategies and related parameters obtained by experimentation to the frame of artificial neural networks in order to perform the learning of the underlying brain functions in the field of prehension. As a first step toward this goal and in order to evaluate and simulate hand manipulation capabilities, it is necessary to define means to evaluate all the relevant parameters associated to hand geometry and kinematics. In this frame, we propose to study two particular aspects that are hand geometry through the development of a hand "morphologic generator" able to build an arbitrary hand model and a finger posture determination algorithm based on a modular neural network architecture (called Hand Posture Modular Neural Networks Architecture or HP-NNA) View full abstract»

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  • Development of DEVS/GDDM environment: realization of space-based data management

    Page(s): 3063 - 3068 vol.5
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    This paper describes the design and development of DEVS/GDDM, an environmental platform for data distribution management, that allows us to study the interestbased quantization scheme in order to achieve effective reduction of data communication in distributed simulation. After a brief review of interest-based quantization scheme, we discuss the implementation of this scheme as a layer above the DEVS/HLA modeling and simulation environment. This paper presents theoretical analysis for bandwidth utilization of the interest-based quantization scheme, especially with predictive and multiplexing extensions, and empirical results in ballistic missiles simulation executing on the DEVS/GDDM environment in NT networking platforms. The results indicate that the DEVS/GDDM environment is very effective and scalable due to reduced local computation demands and extremely favorable communication data reduction with a reasonably small potential for error View full abstract»

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  • NSGA-based multiobjective optimisation for modular strategical planning of electric distribution systems

    Page(s): 3123 - 3128 vol.5
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    Strategic planning requires the optimisation of many objects. The paper aims at the solution of this multiobjective optimisation problem using a nondominated sorting genetic algorithm (NSGA)-based approach. Distribution systems design using modular strategical planning indeed requires the minimisation/maximisation of many objects depending on mixed-integer variables. In the paper the concept of modularity has been used in the formulation of the strategical planning of electrical distribution systems. In this way, innovative and more rational design solutions have been identified. Each module represents the topology and behaviour of each part of the distribution system. The entire system has been represented by the combination of one or more modules. Each combination is characterised by a set of functions expressing the installation cost per year and per squared km, the operational cost, the maximum unavailability, the voltage dips and short interruptions and the voltage unbalances due to single-phase loads feed. In this way, the set of parameter values analytically describing the entire system can be identified, these being the set of optimisation variables View full abstract»

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  • Product and process reconfiguration based on intelligent agents

    Page(s): 3397 - 3402 vol.5
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    Many work is in progress for sustaining the global environment, reducing wasted products, decreasing Lead Times and Work In Process (WIP), in order to improve acceptability, effectiveness and service of modem production systems. Main problem comes from this structural complexity. To improve the performance of a Production System, a tool has been developed. It is called Virtual Factory Dynamics Configuration System (VFDCS); it is intended to implement new concepts relevant to Supply Chain Management (SCM) and, Demand Flow Technology (DFT). It is based on inverse approaches in the area of simulation and scheduling and also uses simple methods and rules. Its implementation requires multi-agent systems and focused on interactions existing between the resources. Here, we focus on the implementation of intelligent agents at product and process level. They integrate quantitative and cognitive data-processing, associated with learning capabilities these agents are able to define the rights coupling, to evaluate these assignments and to adjust product and process parameters, thus to perform automatic reconfiguration of a production system. Improvements works are still in progress to integrate such upgrades and enhancements in the next generation of production systems View full abstract»

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  • Agent mediation and management of virtual communities: a redefinition of the traditional community concept

    Page(s): 3361 - 3366 vol.5
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (618 KB) |  | HTML iconHTML  

    The paper explores the evolution of the concept of community in the light of computer mediated immersive virtual environments. The traditional concept of community has become strained in its attempts to capture the evolving virtual community. We believe the concept of the virtual community is of paramount importance and examine the extent to which this is being redefined to cater for it. We examine the management and mediation of such an environment and specifically the social process associated with the cohabited users. We advocate the use of multi-agent systems in delivering this functionality View full abstract»

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  • SimBot-a simulation tool for autonomous robots

    Page(s): 2986 - 2990 vol.5
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    This paper describes an autonomous robot simulation tool called SimBot. This tool allows users to create scenarios containing multiple autonomous robots and to develop controller programs for these robots. The tool manages the physical modeling of the scenario and generates the multiple 3D views necessary for robot vision and user viewing. The user builds up each robot from a library of configurable body parts. The robot controller programs are implemented as Windows DCOM objects and can be distributed transparently over networks. to speed up robot development, we have begun implementing a few C++ classes for vision analysis and path planning View full abstract»

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  • Redundancy classification for fault tolerant computer design

    Page(s): 3193 - 3198 vol.5
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    The paper discusses the principles of redundancy classification for the design of fault tolerant computer systems. The basic functions of classification: definitive, characteristic and predictive are presented. It is shown that the proposed classification of redundancy possesses substantial predictive power. The proposed classification is suitable for the analysis of roles of hardware and software to achieve system fault tolerance View full abstract»

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  • An analysis and implementation of computer supported exactitude control and self-guided tracking system

    Page(s): 2917 - 2920 vol.5
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    This paper demonstrates that a Four Roller Mill system may be viewed as an example to introduce an implementation of computer supported exactitude control and self-guided tracking system, and it also provides a detailed analysis. The purpose of this paper is to offer a reference to the computer supported roller mill system View full abstract»

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  • Ontology and multi-agent based decision support for enterprise bidding

    Page(s): 2947 - 2951 vol.5
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    The paper discusses a decision support system (DSS) for bidding by manufacturing enterprises. It is based on a competence ontology, which can evaluate the competence of an enterprise, analyse its feasibility and prospective benefits, and optimize bids. The ontology of enterprise competence provides a terminology and micro-theory for the description of and reasoning about enterprise competence. The DSS adopts a scheduling system based on multi-agent negotiation, which estimates the time and cost to achieve the goal of inviting public bidding, and which provides an important basis for enterprise bidding decisions View full abstract»

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  • Analysis of feasibility for real time simulation of RT-DEVs models

    Page(s): 3069 - 3074 vol.5
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    Real time simulation has time constraints within which certain model execution has to be completed. Such simulation usually has interactions with a surrounding environment, such as software components, hardware components or human operators. A proper scheduling policy for model execution and an associated method for feasibility analysis of real time execution are needed. This paper proposes a scheduling policy and its feasibility analysis method for real time discrete event system specification (RT-DEVS) models. The proposed analysis method consists of two phases: synchronization analysis and feasibility analysis. The former checks if the model specifications are consistent with their interactions. The latter examines feasibility for real time simulation of a given model under the proposed scheduling policy and a given hardware resource View full abstract»

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  • A process model of expertise in the design of warehousing and distribution systems

    Page(s): 3403 - 3408 vol.5
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    An ideal warehousing and distribution system has no inventory and operates with minimal handling. In an attempt to achieve this ideal, expert designers rely on their intuition, together with analytical models and procedures formalized over years of experience. Understanding the processes that experts employ to realize their designs can have great benefits, for instance, in developing computational tools to assist in design. We have conducted an ethnographic study of an expert design team during actual system design. In this paper, we describe our observations and a process model of design View full abstract»

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  • Raising the quality of data analysis in the user interface evaluation process

    Page(s): 3441 - 3446 vol.5
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    Product evaluation is the key component to ensure user interface quality. It can happen in different phases of the product's lifecycle, with diverse objectives, participants and methods. This paper presents a tool developed in order to overcome the difficulty in dealing with the volume and variety of formats of the evaluation data. The objective is to support the data analysis phase by offering means for data storage and query, making it easier to interpret the findings View full abstract»

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  • Approach by ant tabu agents for Traveling Salesman Problem

    Page(s): 3429 - 3434 vol.5
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    The ant system (AS) algorithm of M. Dorigo et al. (1996) is a new computational paradigm, which is a stochastic combinatorial algorithm. It solves optimization problems by means of "ants", that is, agents with a very simple basic capability, which mimic the behavior of real ants. The AS proposed by Dorigo has appealing features, but in its standard form it has some limitations. Applied to the Traveling Salesman Problem, the AS approach encounters difficulties when applied to random graphs. To remedy this, we design a new type of agent by using intensification and diversification strategies, based on the proposals of tabu search, in order to reach better solutions View full abstract»

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  • A scalable, distributed algorithm for allocating workers in embedded systems

    Page(s): 3367 - 3373 vol.5
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    This paper presents a scalable threshold-based algorithm for allocating workers to a given task whose demand evolves dynamically over time. The algorithm is fully distributed and solely based on the local perceptions of the individuals. Each agent decides autonomously and deterministically to work only when it "feels" that some work needs to be done based on its sensory inputs. In this paper, we applied the worker allocation algorithm to a collective manipulation case study concerned with the gathering and clustering of initially scattered small objects. The aggregation experiment has been studied at three different experimental levels by using macroscopic and microscopic probabilistic models, and embodied simulations. Results show that teams using a number of active workers dynamically controlled by the allocation algorithm achieve similar or better performances in aggregation than those characterized by a constant team size, while using a considerably reduced number of agents over the whole aggregation process. Since this algorithm does not imply any form of explicit communication among agents, it represents a cost-effective solution for controlling the number of active workers in embedded systems consisting of a few to thousands of units View full abstract»

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  • An overview of World Wide Web caching

    Page(s): 3045 - 3050 vol.5
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    This paper studied the state-of-art in web caching schemes and techniques. An introduction on web caching was presented at the first part. The second part focused on the web caching schemes and architectures. Some fundamental issues on web caching systems were given in the third part. Finally, we discussed some research and industrial frontier in web caching system View full abstract»

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  • Casting design with help of Information Fusion

    Page(s): 3343 - 3348 vol.5
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    The computer-aided support of several tasks is the main focus in a lot of companies. In particular, work scheduling and casting design in foundries is an important area which is responsible for that industry's economic survival in the world market. This paper contains proposals for a better support of the work scheduling and casting design phases with the help of modern computer techniques. First, a review of the research group "Information Fusion" is given. Then, several aspects of work scheduling are explained, like the integrated process of working out offers and scheduling the manufacturing, the incoming and outgoing conditions in the working out of offers, check-lists and databases for technical checks, etc. In order to manage these main points of the work scheduling, a control system , such as a workflow management system, is introduced. This paper presents various solutions in order to support the working out of offers View full abstract»

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