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检索条件"任意字段=International Conference on Information Technology: Coding and Computing, ITCC 2001"

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No-capture hardware feature for securing sensitive information

No-capture hardware feature for securing sensitive informati...

引用

international conference on information technology - coding and computing

作者： Hussain, K Rajan, S Addulla, N Moussa, G Univ Cent Florida Coll Engn & Comp Sci Orlando FL 32816 USA

ISBN: (纸本)0769523153

Protecting sensitive information (credit card information, social security number... etc) from being captured is of utmost importance as it can lead to serious repercussions if the collected data lands into unscrupulous hands. Despite tremendous advances in security, plenty of security problems still afflict systems. Existing security approaches do not prevent processes running in the background from capturing sensitive information on the screen. This paper proposes a no-capture hardware security feature that prevents capturing of sensitive data by users that have administration privileges.

关键词： Computer hardware

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Using principles of pervasive computing to design M-commerce applications

Using principles of pervasive computing to design M-commerce...

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international conference on information technology - coding and computing

作者： Kurkovsky, S Columbus State Univ Columbus GA USA

ISBN: (纸本)0769523153

Distinct features of handheld devices, such as their mobility, personalization and location-awareness, engender a new class of consumer-oriented software applications. While simple shopping assistant programs were one of the first to emerge for this class of devices, many modern m-commerce applications become more complex and utilize a wide range of features of pervasive, computing. In this paper, we discuss a number of design issues pertinent to the development of these applications including context awareness, personalization, ubiquitous access, and intelligent interfaces., We applied these and other principles in the design and development of SMMART, an intelligent context aware framework for delivery of personalized and targeted promotions to the users of mobile devices, which is used as a case study throughout this paper.

关键词： pervasive computing context-awareness m-commerce mobile computing

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Management of explicit and implicit knowledge in consulting companies

Management of explicit and implicit knowledge in consulting ...

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3rd international conference on information technology: coding and computing (itcc 2002)

作者： Bodendorf, F Uelpenich, S Univ Erlangen Nurnberg Dept Informat Syst D-90403 Nurnberg Germany

ISBN: (纸本)076951507X

Knowledge management is very important in the consulting business. On the one hand knowledge is the crucial factor of production that differentiates consulting companies from their competitors. On the other hand knowledge management is a consulting service that can be sold to other companies. A holistic approach for the introduction and establishment of knowledge management in consulting companies is presented that covers changes in organization, roles, processes and information technology. It focuses on an innovative approach to capturing implicit knowledge with intelligent software agents.

关键词： Companies Computer networks information technology Intelligent agent Investments Knowledge management Management information systems Production Quality management Software agents

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Computation and performance trade-offs in motion estimation algorithms

Computation and performance trade-offs in motion estimation ...

引用

2nd international conference on information technology - coding and computing (itcc 2001)

作者： Namuduri, KR Ji, AY Clark Atlanta Univ Ctr Theoret Studies Phys Syst Dept Comp Sci Atlanta GA 30314 USA

ISBN: (纸本)0769510620

Real-time video/visual communication applications require trade-offs in terms of processing speed, visual image quality and power consumption. Motion estimation is one of the tusks in video coding that requires significant amount of computation. Block matching motion estimation algorithms such as the three-step search and the diamond search algorithms are currently being used in video coding schemes as alternatives to full search algorithms. Fast motion estimation algorithms reduce the computational complexity, at the expense of reduced performance. Special purpose fast processors can be employed as an alternative to meet the computational demand. However, the processing speed comes at the expense of higher power consumption. This paper investigates recently developed motion estimation algorithms and presents the computational, and performance trade-offs involved in choosing a motion estimation algorithm for video coding applications. Fast motion estimation algorithms often assume monotonic error surface in order to speed up the algorithm. The argument against this assumption is that the search might be trapped in local minima and may result in noisy motion field. Prediction methods have been suggested in the literature as a solution to avoid these local minima and noisy motion field. This paper also investigates the effects of the monotonic error surface assumption as well as the appropriate choice of initial motion vectors that results in better performance of the motion estimation algorithms.

关键词： Image coding

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Towards an indoor location system using RF signal strength in IEEE 802.11 networks

Towards an indoor location system using RF signal strength i...

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international conference on information technology - coding and computing

作者： Harder, A Song, LL Wang, Y Auburn Univ Dept Software Engn & Comp Sci Auburn AL 36849 USA

ISBN: (纸本)0769523153

Location is one of the most important contexts used in pervasive computing environments. GPS systems are intensely used to detect the location information;they mainly work in outdoor environment. Applications call for precise, easy-to-build, and easy-to-use indoor location systems. This paper presents our work to implement an indoor location determination system, for Microsoft-Windows-based platforms using a preexisting IEEE 802.11 wireless network. The location is determined from radio signal strength information collected from multiple base stations at different physical locations. Our experiments show a high accuracy rate of this approach.

关键词： ubiquitous computing location determination system signal strength 802.11 networks training data

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Misbehavior detection in clustered ad-hoc networks with central control

Misbehavior detection in clustered ad-hoc networks with cent...

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international conference on information technology - coding and computing

作者： Vassilaras, S Vogiatzis, D Yovanof, GS Athens Information Technology Greece

ISBN: (纸本)0769523153

Although individual node cooperation is necessary for the correct execution of network protocols in Mobile Ad-hoc Networks, it is not always guaranteed Therefore, misbehavior defection and reputation mechanisms need to be implemented in order to reinforce node cooperation. In this paper, we address the issue of detecting non-cooperative behavior during packet forwarding in clustered mobile Ad-hoc networks which operate under the coordination and supervision of a central entity. The proposed solution uses end-to-end authenticated acknowledgments for every transmitted packet. Low computational overhead is achieved by employing an adapted version of the TESLA symmetric key broadcast authentication protocol.

关键词： Control systems

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Transaction mechanism design in decentralized computational market

Transaction mechanism design in decentralized computational ...

引用

international conference on information technology - coding and computing

作者： Fu, QF Yang, SB Li, MS Zhu, JM Univ Sci & Technol China Dept Comp Sci Hefei 230026 Peoples R China

ISBN: (纸本)0769523153

Based on Utility and Mechanism Design theory, this paper describes grid resources trade and allocation mechanism in Decentralized Computational Market, focusing on the design of double auction and aggregate market mechanism. Double auction mechanism employs decentralized architecture in decision making. The price fluctuates according to the wave of supply & demand of the market and the participants' bid strategy. Comparatively, there has little participants' influence in aggregate market mechanism;the price is determined by the central price setup system. Although presenting higher performance, aggregate market mechanism sacrifices interest of the bargainers. The simulations of single type commodity (CPU slices) market illustrate validity of the two kinds of trade mechanism. Comparing analysis is explicated from the view of transaction price, deal amount and the utility increment.

关键词： marketing data processing transaction processing grid computing resource allocation distributed decision making multivariable systems pricing electronic commerce transaction mechanism decentralized computational market utility and mechanism design theory grid resource trading grid resource allocation double auction aggregate market mechanism decentralized architecture decision making price fluctuation supply and demand bid strategy single type commodity market transaction price utility increment

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Accessing temporal data objects in mobile computing environments

Accessing temporal data objects in mobile computing environm...

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international conference on information technology - coding and computing

作者： Wong, ACS Lee, VCS Lam, KW City Univ Hong Kong Dept Comp Sci Hong Kong Hong Kong Peoples R China

ISBN: (纸本)0769521088

In mobile computing environments, many real life applications involve transaction processing with temporal data objects which are updated periodically by external environment. Transaction in temporal database not only has to meet the transaction deadline, but also the data deadline of temporal objects. Traditional concurrency control algorithms used in real-time database are no longer suitable for temporal database. In this paper, a new optimistic concurrency control algorithm, OCC-AVI is devised for processing mobile read-only transactions with the above deadline requirements. Based on the absolute validity interval (AVI) information, read-only transactions at mobile clients can autonomously choose to read a valid value of a temporal object from local cache or pull an updated value from the server. Experimental results show that OCC-AVI can significantly improve the system performance.

关键词： Mobile computing

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T-error correcting/d-error detecting (d>t) and all unidirectional error detecting codes with neural network. II

T-error correcting/d-error detecting (d>t) and all unidirect...

引用

international conference on information technology: coding and computing, itcc 2002

作者： Htay, Maung Maung Iyengar, S. Sitharama Zheng, Si Qing Department of Information Technology Radford University RadfordVA24142 United States Department of Computer Science Louisiana State University Baton RougeLA70803 United States Department of Computer Science University of Texas DallasTX75083 United States

ISBN: (纸本)0769515061

For pt.I. see itcc, IEEE proceeding, p. 529-36 (April 2001). In this paper, we develop an algorithm for t-error correcting/d-error detecting and all unidirectional error detecting (t-EC/d-ED/AUED) codes in the framework of neural work. As t-EC/d-ED/AUED codewords are formed by concatenation of information bits and one or more groups of check bits depending on how we want to construct code, we demonstrate neural network algorithms for constructing, detecting and correcting codes. As a continuation of the previous paper, we present an algorithm, code construction, detecting and correcting for 2EC/5ED/AUED code II. We also plan to present for other codes with more examples in near future as well. © 2002 IEEE.

关键词： Network coding

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An extensible framework for practical secure component composition in a ubiquitous computing environment

An extensible framework for practical secure component compo...

引用

international conference on information technology - coding and computing

作者： Llewellyn-Jones, D Merabti, M Shi, Q Askwith, B Liverpool John Moores Univ Sch Comp & Math Sci Liverpool L3 5UX Merseyside England

ISBN: (纸本)0769521088

Establishing the security properties of executable code provides an important challenge for advocates of ubiquitous computing. We provide a framework that utilises component composition techniques in order to establish such properties for a composed application in a ubiquitous environment. The framework accounts for the need to establish the properties of individual components, and draws on composition results in order to establish overall properties for composed applications. The framework utilises XML composition templates to provide extensibility, so that new composition results will further enhance its effectiveness.

关键词： Security systems

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