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Date 1-3 Sept. 2003

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Displaying Results 1 - 25 of 3633162
  • Share it! by bringing P2P into the tv-domain

    Publication Year: 2003 , Page(s): 206 - 207
    Cited by:  Papers (2)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (198 KB) |  | HTML iconHTML  

    Share it! is a European project with a focus on developing concepts and solutions for interconnecting digital TV set top boxes that enable users to share TV-programmes. One important goal of the project is to set future standards, e.g. in content management and rights management, for broadband connected digital television. We introduce the project objectives and the consortium, and then focus on how P2P technology and JXTA platform are used in solving various important issues that help to achieve the project goals. View full abstract»

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  • Development of image processing software for quantitative analysis of bioluminescence image

    Publication Year: 2006 , Page(s): 135 - 139
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (640 KB) |  | HTML iconHTML  

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  • An architecture for peer-to-peer economies

    Publication Year: 2003 , Page(s): 208 - 209
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (194 KB) |  | HTML iconHTML  

    The MMAPPS project is researching the use of techniques from economics and social science to tackle some of the fundamental difficulties in creating well-founded, sustainable, P2P applications. The project's central approach is to extend market management techniques to improve cooperation between peers while enhancing the community-oriented structure of P2P architectures. View full abstract»

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  • A new blind equalization algorithm based on EVA

    Publication Year: 2004 , Page(s): 425 - 428 Vol.2
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (303 KB) |  | HTML iconHTML  

    A new blind equalization algorithm, the modified EVA (mEVA) algorithm is presented in this paper. The mEVA solves the phase rotation problem which is the main defect of the EVA and achieves improved convergence rate and anti-noise capability without increasing the computation complexity. Simulation results are given to compare the performance of the two algorithms and indicate the desirable properties of the mEVA. View full abstract»

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  • Contents - Volume 51 Number 1

    Publication Year: 2005 , Page(s): 1
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (466 KB)  

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  • HL7 middleware framework for healthcare information system

    Publication Year: 2006 , Page(s): 152 - 156
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (240 KB) |  | HTML iconHTML  

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  • Applications of an advanced peer-to-peer platform

    Publication Year: 2003 , Page(s): 210 - 211
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (439 KB) |  | HTML iconHTML  

    We describe actual and trial applications on the SIONet (semantic information-oriented network) peer-to-peer (P2P) platform developed by NTT Labs. SIONet is a logical overlay network. Peers record semantic information on SIONet routers (SI switches), which use the information to guide the routing of packets. We have already developed on-line community systems, a storage system, integrated database systems, components for a software development environment, and a simple game. We look at some of these applications. View full abstract»

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  • A simulation based algorithm for optimal quantization of hidden Markov models

    Publication Year: 2003
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (220 KB) |  | HTML iconHTML  

    A general problem of multilevel scalar quantization of hidden Markov models is considered. An algorithm for the optimal selection of the quantization levels is proposed and its asymptotic behavior is analyzed theoretically and through simulations. The proposed algorithm is based on stochastic approximation and Monte Carlo gradient estimation. View full abstract»

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  • Brain activity associated with multistable perceptions: a functional MRI study

    Publication Year: 2003 , Page(s): 342 - 343
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1335 KB) |  | HTML iconHTML  

    A potentially promising experimental paradigm in the understanding of visual awareness, which is a particular kind of consciousness, is multistable perceptions wherein images given to the eyes remain the same while the percept changes. Controversies remain as to precisely what region of the brain is involved in multistable perceptions. To address this question, we used functional magnetic resonance imaging and compared brain activities during multistable and monostable perceptions presenting a diamond changing its width. Although there were individual differences, significant differential activations were commonly observed in the bilateral parietal, prefrontal and middle temporal areas in a multistable condition compared to those in a monostable control condition. These findings suggest that activity in a distributed network of the parietal and prefrontal areas might be associated with multistable perceptions. View full abstract»

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  • Announcement

    Publication Year: 2005 , Page(s): 3
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (475 KB)  

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  • National suicide surveillance system: experience in Taiwan

    Publication Year: 2006 , Page(s): 160 - 164
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (375 KB) |  | HTML iconHTML  

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  • Control of a dual stator winding induction machine as a source of dc power

    Publication Year: 2005 , Page(s): 1089 - 1096 Vol. 2
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1188 KB) |  | HTML iconHTML  

    This paper investigates the use of a dual stator winding squirrel-cage induction machine for generating dc power using series or parallel connected ac-dc PWM rectifiers. The operating principles and constraints when generating under minimum total copper loss condition are explored using the machine steady-state model considering magnetizing flux saturation effects. Regulation of the dc voltage using concepts of the nonlinear input-output linearization method including the design of the controllers are set forth and confirmed to be effective by computer simulation results. Some experimental waveforms of the generator under load are also included in the paper. View full abstract»

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  • Relationships among three types of covering rough sets

    Publication Year: 2006 , Page(s): 43 - 48
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (117 KB) |  | HTML iconHTML  

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  • Reed-Muller universal logic module networks

    Publication Year: 1993 , Page(s): 105 - 108
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (220 KB)  

    Describes Reed-Muller universal logic modules (RM-ULMs) and their use for the implementation of logic functions given in Reed-Muller (RM) form. A programmed algorithm is presented for the synthesis and optimisation of RM-ULM networks. The level-by-level minimisation procedure is based on the selection of control variables at different levels with the aim of maximising the number of discontinued branches and hence minimising the number of modules required to implement a given function. The algorithm is programmed in Fortran and can be used to realise fixed-polarity generalised Reed-Muller (GRM) expansions of any polarity and any number of variables. View full abstract»

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  • 3LS - a peer-to-peer network simulator

    Publication Year: 2003 , Page(s): 212 - 213
    Cited by:  Papers (4)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (366 KB) |  | HTML iconHTML  

    Peer-to-peer (p2p) networks are the latest addition to the already large distributed systems family. With a strong emphasis on self-organization, decentralization and autonomy of the participating nodes, p2p-networks tend to be more scalable, robust and adaptive than other forms of distributed systems. The much-publicized success of p2p-networks for file-sharing and cycle-sharing have resulted in an increased awareness and interest into the p2p protocols and applications. However, p2p-networks are difficult to study due to their size and the complex interdependencies between users, application, protocol and network. We present a 3-level simulator designed to study complex p2p networks. View full abstract»

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  • Provision resource bidding for special service provider in decoupling spaces network

    Publication Year: 2003 , Page(s): 363 - 367 Vol.1
    Cited by:  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (447 KB) |  | HTML iconHTML  

    In this paper we present the design and implementation of a framework that used JavaSpaces to support a bidding service over the decoupling network. There is a high expectation and demand for a network that could support various devices. With JavaSpaces technique, the user who requested services and the provider who provided services could read, write or take an entry task to/from the space. It was possible that one service provider could not support all client application needs. Therefore, the requirement of the chaining application and finding the lowest cost of the cascade sequence were in the interested area of middle ware network for the Internet application and adaptation. In addition, we also showed that the price and cost for support specific application could turn into the bidding concept. Hence, in this paper we focused on a research in finding an application and come out with bidding cost where we implemented JavaSpaces as a middle object pool. The result was shown by a comparison of consuming time between provision read the resource node and real time read the resource node. These ideas could extend to further perform in a recursive fashion for finding specific service applications. View full abstract»

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  • An improved fast correlation attack based on list decoding

    Publication Year: 2003
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (218 KB) |  | HTML iconHTML  

    An improvement of a recently reported powerful fast correlation attack is proposed and discussed. The proposed improvement is related to a construction of the decoding candidates list. The given theoretical analysis implies improvement of the algorithm performances assuming the same sample for processing and the same algorithm complexity. View full abstract»

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  • Identification of recurrent fuzzy systems with genetic algorithms

    Publication Year: 2004 , Page(s): 1703 - 1708 vol.3
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (885 KB) |  | HTML iconHTML  

    This work presents an algorithm for identification of fuzzy recurrent models of non-linear dynamic systems. The identification algorithm is based on a general purpose genetic algorithm. The resulting recurrent fuzzy system can encode into a fuzzy finite state automaton in which the linguistic terms of the fuzzy model are the states, and rule base weights are transition possibilities. The identification algorithm is tested against benchmark identification problems found in the literature. View full abstract»

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  • A basic study of the near vertical inclined skywave the last survival tool of radio communications to support telemedicine after n-disaster

    Publication Year: 2006 , Page(s): 165 - 169
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (507 KB) |  | HTML iconHTML  

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  • Improved nearest neighbor based approach to accurate document skew estimation

    Publication Year: 2003 , Page(s): 503 - 507 vol.1
    Cited by:  Papers (5)  |  Patents (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (537 KB) |  | HTML iconHTML  

    The nearest-neighbor based document skew detection methods do not require the presence of a predominant text area, and are not subject to skew angle limitation. However, the accuracy of these methods is not perfect in general. In this paper, we present an improved nearest-neighbor based approach to perform accurate document skew estimation. Size restriction is introduced to the detection of nearest-neighbor pairs. Then the chains with a largest possible number of nearest-neighbor pairs are selected, and their slopes are computed to give the skew angle of document image. Experimental results on various types of documents containing different linguistic scripts and diverse layouts show that the proposed approach has achieved an improved accuracy for estimating document image skew angle and has an advantage of being language independent. View full abstract»

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  • The detection of interturn stator faults in doubly-fed induction generators

    Publication Year: 2005 , Page(s): 1097 - 1102 Vol. 2
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (705 KB) |  | HTML iconHTML  

    Presently, many condition monitoring techniques that are based on steady-state analysis are being applied to wind generators. However, the operation of wind generators is predominantly transient, therefore prompting the development of non-stationary techniques for fault detection. In this paper we apply steady-state techniques, e.g. motor current signatures analysis (MCSA) and the extended Park's vector approach (EPVA), as well as a new transient technique that is a combination of the EPVA, the discrete wavelet transform and statistics, to the detection of turn faults in a doubly-fed induction generators (DFIG). It is shown that steady-state techniques are not effective when applied to DFIG's operating under transient conditions. The new technique shows that stator turn faults can be unambiguously detected under transient conditions. View full abstract»

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  • Model-based monitoring and control of batch pulp digester

    Publication Year: 1994 , Page(s): 500 - 504 vol.1
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (416 KB)  

    In a recent work by Lee and Datta (1994), the feasibility of applying a model-based dynamic estimation and control technique was tested. It was shown that reliable monitoring and control of the Kappa number can be achieved, even in the presence of significant errors in the initial state estimates, given that the model parameters can be adapted efficiently. However, since the available fundamental pulping models are of very high-order involving many parameters, simultaneous update of the states and parameters resulted in an ill-conditioned estimation problem, leading to unacceptably slow convergence or divergence. This indicated a need for a reduced-order model that captures the essential aspects of the pulping dynamics. Development of such a model and testing of its suitableness for online use are topics of this paper. We verify the adequacy of the proposed reduced-order model and its online adaptability by applying a standard model-based nonlinear estimation and predictive control technique. View full abstract»

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  • Design and emulation of integration middleware for ubiquitous healthcare

    Publication Year: 2006 , Page(s): 210 - 213
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (501 KB) |  | HTML iconHTML  

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  • Expeerience: a JXTA middleware for mobile ad-hoc networks

    Publication Year: 2003 , Page(s): 214 - 215
    Cited by:  Papers (10)  |  Patents (13)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (263 KB) |  | HTML iconHTML  

    The combination of personal computing devices and wireless ad-hoc networks allows the concept of mobile ad-hoc information system, consisting of a highly dynamic, decentralized and self-organizing network of autonomous and mobile devices that interact as peers [M. Hannicainen et al. (2002), L. Kleinrock, (2000)]. Here we define a middleware layer, named Expeerience. We have decided to adopt as a basic software framework, an emerging P2P open technology such as JXTA. The second issue we address in this work is the integration of some code mobility support in the developed middleware to allow the distribution and execution of services on peers that originally do not own the service code. This has been introduced in our platform by adding a mobile code service, which enables to download and install new services dynamically only if necessary. View full abstract»

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  • LDPC-based space-time coded OFDM systems performances over correlated fading channels

    Publication Year: 2003 , Page(s): 590 - 594 Vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (379 KB) |  | HTML iconHTML  

    In this paper, we consider a space-time coded (STC) orthogonal frequency-division multiplexing (OFDM) system with multiple transmitter and receiver antennas over correlated frequency- and time-selective fading channels. We propose a maximum-likelihood (ML) receiver for STBC-OFDM systems based on the expectation-maximization (EM) algorithm. We then propose a low-density parity-check (LDPC)-code-based STC-OFDM system to interface with the EM module. Using this encoder scheme together with the EM-based receiver, we built a novel turbo receiver which is particularly well suited for fast-time varying channels with a modest computational complexity. View full abstract»

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