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IEEE International Conference on Field-programmable Technology (FPT)

作者： N. Aibe M. Yasunaga Graduate School Doctoral Program Systems & Information Engineering University of Tsukuba Tsukuba Ibaraki Japan Institute of Information Sciences and Electronics University of Tsukuba Tsukuba Ibaraki Japan

We propose a novel architecture for variable comparator named RPCA (Reconfigurable Parallel Comparation Architecture) making full use of the reconfigurability of FPGA. In the RPCA, an appropriate comparator to each task can be chosen and implemented under the speed/data-size tradeoff. An RPCA-based pack-filter prototype using XILINX XCV300E-6PQ240C and RealTeK RTL8201BL is developed and filtering speed of 120ns for 128 IPs and 1,360ns for 2,048 IPs are obtained under the speed/data-size trade-off.

关键词： Prototypes Field programmable gate arrays information filtering information filters Pattern matching Intrusion detection Spine Buffer storage Systems engineering and theory Cryptography

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Logieality of conditional rewrite systems 7th

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7th International Joint Conference on Theory and Practice of Software Development, TAPSOFT 1997

作者： Yamada, Toshiyuki Avenhaus, Jürgen Loría-Sáenz, Carlos Middeldorp, Aart Doctoral Program in Engineering University of Tsukuba Tsukuba305 Japan Fachbereich Informatik Universität Kaiserslautern Kaiserslautern67653 Germany Instituto Tecnologico de Costa Rica Departamanto de Computacion Cartago Costa Rica Institute of Information Sciences and Electronics University of Tsukuba Tsukuba305 Japan

ISBN: (纸本)9783540627814

A conditional term rewriting system is called logical if it has the same logical strength as the underlying conditional equational system. In this paper we summarize known logicality results and we present new sufficient conditions for logicality of the important class of oriented conditional term rewriting systems. © Springer-Verlag Berlin Heidelberg 1997.

关键词： Computational mechanics

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Evaluation of signature files as set access facilities in OODBs

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SIGMOD Record 1993年第2期22卷 247-256页

作者： Ishikawa, Yoshiharu Kitagawa, Hiroyuki Ohbo, Nobuo Doctoral Degree Program in Engineering University of Tsukuba Tsukuba City Ibaraki305 Japan Institute of Information Sciences and Electronics University of Tsukuba Tsukuba City Ibaraki305 Japan

Object-oriented database systems (OODBs) need efficient support for manipulation of complex objects. In particular, support of queries involving evaluations of set predicates is often required in handling complex objects. In this paper, we propose a scheme to apply signature file techniques, which were originally invented for text retrieval, to the support of set value accesses, and quantitatively evaluate their potential capabilities. Two signature file organizations, the sequential signature file and the bit-sliced signature file, are considered and their performance is compared with that of the nested index for queries involving the set inclusion operator (⊆). We develop a detailed cost model and present analytical results clarifying their retrieval, storage, and update costs. Our analysis shows that the bit-sliced signature file is a very promising set access facility in OODBs. © 1993 ACM.

关键词： Object-oriented databases

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Eliciting programming Challenges Faced by Developers with Visual Impairments: Exploratory Study

Eliciting Programming Challenges Faced by Developers with Vi...

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ICSE Workshop on Cooperative and Human Aspects on Software engineering, CHASE

作者： Khaled Albusays Stephanie Ludi Computing and Information Sciences Program Rochester Institute of Technology Rochester NY Software Engineering Department Rochester Institute of Technology Rochester NY

ISBN: (纸本)9781509021987

Without understanding the programming difficulties faced by developers with visual impairments, the research community cannot begin to work on effective solutions to overcome these potential problems. This paper will describe our initial empirically based study to identify the problems blind software developers face. We analyzed 69 survey responses with blind developers in an effort to identify the aspects that are indeed a challenge to software development. The results indicate a number of difficulties, workarounds, and basis requirements that will serve as domain and stakeholder understand.

关键词： Visualization Software Navigation programming profession Computer languages Software engineering

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A Novel Blockchain-Based Strategy for Energy Conservation in Cognitive Wireless Sensor Networks 4

A Novel Blockchain-Based Strategy for Energy Conservation in...

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4th International Conference on Blockchain Technology and information Security, ICBCTIS 2024

作者： Sharma, Khemraj Goyal, Rohit Bhagat, Sukesh Kumar Agarwal, Sheenu Bisht, Girish Singh Hussien, Mohemmed Nanhua University Department of Business Administration Doctoral Program in Management Sciences Dalin62248 Taiwan School of Engineering and Computing Dev Bhoomi Uttarakhand University Dehradun India Uttaranchal University Department of Computer Science & Engineering Dehradun India Uttarakhand Technical University Department of Electronics and Communication Engineering Dehradun India Tula's Institute Dehradun India Department of Computer Science and Engineering Dehradun248001 India The Islamic University Najaf Iraq

ISBN: (纸本)9798331528324

Internet of Things (IoT) industrial applications have increased in internet-connected devices. As a result, accessibility, scalability, connectivity, and adaptability have become major challenges. It is possible to create connections between loT devices over the wireless medium, but efficiently utilizing scarce spectrum is the biggest concern. The paper proposes a novel method for selecting sensing nodes with the goal of reducing energy usage and increasing sensing efficiency. In order to ensure that node trust values conform to each other without any ambiguity, cryptography encrypts all information that relates to a node in a central node (CN). Nodes participating in CSS are selected based on their performance. Based on a comparison of various algorithms using varying numbers of nodes, the proposed algorithm achieves a 10% sensing efficiency. © 2024 IEEE.

关键词： Blockchain Network Network Communication security Wireless Sensor

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Sparse object reconstruction from a limited number of projections using the linear programming

Sparse object reconstruction from a limited number of projec...

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IEEE Symposium on Nuclear Science (NSS/MIC)

作者： Meihua Li H. Kudo Jicun Hu R. Johnson Doctoral Program in Engineering University of Tsukuba Tsukuba Japan Institute of Information Sciences and Electronics University of Tsukuba Tsukuba Japan Department of Biomedical Engineering Marquette University WI USA

This paper proposes a simple row-action type iterative algorithm which is appropriate to reconstruct sparse objects from a limited number of projections. The main idea is to use the L/sub 1/ norm to pick up a sparse solution from a set of feasible solutions to the measurement equation. By perturbing the linear program to a quadratic program, we use the duality of the nonlinear programming to construct a row-action type iterative algorithm to find a solution, we also prove that the algorithm converges for any initial image. We show that this method works well in the 3D blood-vessel reconstruction and its computation time is shorter compared to our previous method.

关键词： Linear programming Image reconstruction Iterative algorithms Tomography Subspace constraints Reconstruction algorithms Biomedical engineering Nonlinear equations Quadratic programming Image converters

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Double-SP Method to Enhance Privacy and Security of Smart City Applications 10

Double-SP Method to Enhance Privacy and Security of Smart Ci...

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17th INDIACom;2023 10th International Conference on computing for Sustainable Global Development, INDIACom 2023

作者： Bahbouh, Nour Mahmoud Hakami, Abdulelah Alhussain Hassan Aljohani, Yaser Mohammed Sen, Adnan Ahmed Abi Alkhodre, Ahmad Alsughayyir, Aeshah Granada University Department of Information and Communication Sciences Granada Spain Saudi Electronic University Al-Madinah Saudi Arabia YasRef Program Yanbu Saudi Arabia Computing and Information Technology Islamic University Al-Madinah Saudi Arabia Islamic University Faculty of Computer and Information Systems Al-Madinah Saudi Arabia College of Computer Science and Engineering Taibah University Al-Madinah Saudi Arabia

ISBN: (纸本)9789380544472

Smart cities promise a lot of well-being to their users in all areas of life through millions of applications and services. Smart services rely heavily on collecting data and the preferences of users. But on the dark side, the users' information is posed to threat and penetration during transmission or stored far in the clouds. Depending on encryption only is not sufficient if the attacker has strong resources or if the attacker is the service provider (SP) itself. In addition, changing data before sending is not a practical solution in many systems because of the adverse impact on the quality of a main service. This research presented a new idea to address the issue of protection. The proposed method enhanced the privacy and security of users' data without affecting the accuracy of service. The core of the suggested solution relies on a knowledge base of services that are managed by experts. Also, the solution depends on fog nodes to measure the level of security and privacy of users' queries without delay. Moreover, the fog nodes manage contact with SPs. Finally, the proposed method divided the SP into two, one for user queries and the other for user data. The simulation and analytical discussion on a practical case in smart cities demonstrated the superiority of the proposed approach over previous methods in the level of protection by maintaining the quality of services, and the resistance to attacks. © 2023 Bharati Vidyapeeth, New Delhi.

关键词： Fog

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Data-Driven Approaches to Detecting Misdeliveries in Truck Logistics using GPS Data

Data-Driven Approaches to Detecting Misdeliveries in Truck L...

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2023 IEEE International Conference on Big Data, BigData 2023

作者： Hidaka, Ayumu Shin, Ryota Tsuchiya, Atsushi Nakabayashi, Norihiko Okada, Yukihiko Shida, Yohei University of Tsukuba Master's Program in Service Engineering Tsukuba Japan University of Tsukuba Doctoral Programs in Policy and Planning Sciences Tsukuba Japan Yamato Transport Co. Ltd. Minato Japan University of Tsukuba Yamato Transport Co.Ltd. Tsukuba Japan University of Tsukuba Institute of Systems and Information Engineering Center for Artificial Intelligence Research Tsukuba Japan University of Tsukuba Institute of Systems and Information Engineering Tsukuba Japan

ISBN: (纸本)9798350324457

Misdelivery in logistic services leads to increased costs and degradation of packages. For deliveries using trucks, erroneous deliveries are prevented by checking identification numbers on packages as the packages pass through delivery points. In recent years, it has become possible to monitor real-time location by attaching GPS receivers to packages, but few concrete efforts have been made to detect anomalies using truck transport data. This study introduces a basic framework for the detection of misdeliveries and a summary of the problems in actual truck misdelivery using special medical supply delivery data provided by a major Japanese logistics company. It is shown that the system can detect erroneous deliveries with high accuracy, even for actual delivery data with coarse resolution owing to the cost of installing the equipment. This study has the potential not only to improve logistics and reduce costs, but also to solve various social problems such as driver shortages. © 2023 IEEE.

关键词： anomaly detection GPS misdelivery trajectory method transport data truck logistics

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A method on tracking common boundaries of color regions in function approximation-based image coding

A method on tracking common boundaries of color regions in f...

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IEEE Pacific Rim Conference on Communications, Computers and Signal Processing

作者： T. Sugiyama P.W.H. Kwan K. Toraichi K. Katagishi Doctoral Program Graduate School of Systems and Information Engineering University of Tsukuba Japan Core Research for Evolutional Science & Technology Program Japan Science and Technology Corporation Japan Institute of Information Sciences and Electronics University of Tsukuba Japan

A boundary tracking method crucial to function approximation-based image coding is proposed that solves the problems caused by duplicate tracking the common boundaries of color regions when methods conventionally applied to bilevel raster images are inappropriately used. Experimental evaluation is performed to verify its effectiveness.

关键词： Function approximation Image coding Colored noise Color Image reconstruction Systems engineering and theory Electronic mail Performance evaluation Spline Internet

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Genetic programming Theory and Practice XX 1

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丛书名： Genetic and Evolutionary Computation

1000年

作者： Stephan Winkler Leonardo Trujillo Charles Ofria Ting Hu

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