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This monograph describes methods for extending relational database systems for geographic applications. The ways in which a relational database system is supplemented with unconventional spatial indexing structures, additional spatial subsystems and query processors are described in great detail. The work presents an extensive survey of existing spatial indexing techniques and a taxonomy of the extensions to the multidimensional indexing structures. An extensive experimental analysis of spatial indexes is presented. The work covers the following areas: - the design of geographic information systems (GIS) - extended query languages for GIS - spatial indexing mechanisms - query processing strategies. The author presents his own skd-trees and extended query optimization strategies. The survey of spatial indexing structures for non-zero sized objects provides a framework for workers in the field of spatial information systems to evaluate spatial access methods. The consideration of query optimization will assist understanding of the role of that topic in GIS.
Geografische informatiesystemen --- Geographic information systems --- Systèmes d'information géographique --- 681.3*H3 --- 681.3*E1 --- 681.3*H23 --- Geographical information systems --- GIS (Information systems) --- Information storage and retrieval systems --- Information storage and retrieval. Cd-rom --- Data structures: arrays; graphs; lists; tables; trees --- Languages: data description languages; DDL; data manupulation languages; DML;query languages; report writers (Database management) --- Geography --- 681.3*H23 Languages: data description languages; DDL; data manupulation languages; DML;query languages; report writers (Database management) --- 681.3*E1 Data structures: arrays; graphs; lists; tables; trees --- 681.3*H3 Information storage and retrieval. Cd-rom --- Electronic data processing --- Distributed computer systems in electronic data processing --- Distributed computing --- Distributed processing in electronic data processing --- Computer networks --- Distributed processing --- Data structures (Computer scienc. --- Geographical information systems. --- Information theory. --- Database management. --- Information storage and retrieval systems. --- Data Structures and Information Theory. --- Geographical Information Systems/Cartography. --- Theory of Computation. --- Database Management. --- Information Storage and Retrieval. --- Data Structures. --- Automatic data storage --- Automatic information retrieval --- Automation in documentation --- Computer-based information systems --- Data processing systems --- Data storage and retrieval systems --- Discovery systems, Information --- Information discovery systems --- Information processing systems --- Information retrieval systems --- Machine data storage and retrieval --- Mechanized information storage and retrieval systems --- Computer systems --- Electronic information resources --- Data libraries --- Digital libraries --- Information organization --- Information retrieval --- Data base management --- Data services (Database management) --- Database management services --- DBMS (Computer science) --- Generalized data management systems --- Services, Database management --- Systems, Database management --- Systems, Generalized database management --- Communication theory --- Communication --- Cybernetics
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In our increasingly mobile world the ability to access information on demand at any time and place can satisfy people's information needs as well as confer on them a competitive advantage. The emergence of battery-operated, low-cost and portable computers such as palmtops and PDAs, coupled with the availability and exploitation of wireless networks, have made possible the potential for ubiquitous computing. Through the wireless networks, portable equipments will become an integrated part of existing distributed computing environments, and mobile users can have access to data stored at information servers located at the static portion of the network even while they are on the move. Traditionally, information is retrieved following a request-response model. However, this model is no longer adequate in a wireless computing environment. First, the wireless channel is unreliable and the bandwidth is low compared to the wired counterpart. Second, the environment is essentially asymmetric with a large number of mobile users accessing a small number of servers. Third, battery-operated portable devices can typically operate only for a short time because of the short battery lifespan. Thus, clients are expected to be disconnected most of the time. To overcome these limitations, there has been a proliferation of research efforts on designing data delivery mechanisms to support wireless computing more effectively. Data Dissemination in Wireless Computing Environments focuses on such mechanisms. The purpose is to provide a thorough and comprehensive review of recent advances on energy-efficient data delivery protocols, efficient wireless channel bandwidth utilization, reliable broadcasting and cache invalidation strategies for clients with long disconnection time. Besides surveying existing methods, this book also compares and evaluates some of the more promising schemes.
Mobile computing. --- Mobile communication systems. --- Computer industry. --- Information storage and retrieva. --- The Computing Profession. --- Information Storage and Retrieval. --- e-Commerce/e-business. --- Information storage and retrieval systems. --- Computers. --- Information storage and retrieval. --- E-commerce. --- Cybercommerce --- E-business --- E-commerce --- E-tailing --- eBusiness --- eCommerce --- Electronic business --- Internet commerce --- Internet retailing --- Online commerce --- Web retailing --- Commerce --- Information superhighway --- Automatic computers --- Automatic data processors --- Computer hardware --- Computing machines (Computers) --- Electronic brains --- Electronic calculating-machines --- Electronic computers --- Hardware, Computer --- Computer systems --- Cybernetics --- Machine theory --- Calculators --- Cyberspace --- Vehicles --- Vehicular communication systems --- Radio --- Wireless communication systems --- Electronic data processing --- Context-aware computing --- Portable computers --- Communication systems
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Information systems --- Computer. Automation --- ICT (informatie- en communicatietechnieken) --- IR (information retrieval) --- informatica --- multimedia --- informatiesystemen --- database management
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Peer-to-peer (P2P) technology, or peer computing, is a paradigm that is viewed as a potential technology for redesigning distributed architectures and, consequently, distributed processing. Yet the scale and dynamism that characterize P2P systems demand that we reexamine traditional distributed technologies. A paradigm shift that includes self-reorganization, adaptation and resilience is called for. On the other hand, the increased computational power of such networks opens up completely new applications, such as in digital content sharing, scientific computation, gaming, or collaborative work environments. In this book, Vu, Lupu and Ooi present the technical challenges offered by P2P systems, and the means that have been proposed to address them. They provide a thorough and comprehensive review of recent advances on routing and discovery methods; load balancing and replication techniques; security, accountability and anonymity, as well as trust and reputation schemes; programming models and P2P systems and projects. Besides surveying existing methods and systems, they also compare and evaluate some of the more promising schemes. The need for such a book is evident. It provides a single source for practitioners, researchers and students on the state of the art. For practitioners, this book explains best practice, guiding selection of appropriate techniques for each application. For researchers, this book provides a foundation for the development of new and more effective methods. For students, it is an overview of the wide range of advanced techniques for realizing effective P2P systems, and it can easily be used as a text for an advanced course on Peer-to-Peer Computing and Technologies, or as a companion text for courses on various subjects, such as distributed systems, and grid and cluster computing.
Peer-to-peer architecture (Computer networks). --- Peer-to-peer architecture (Computer networks) --- Telecommunications --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Information Technology --- Computer Science (Hardware & Networks) --- Computer network architectures. --- Architectures, Computer network --- Network architectures, Computer --- P2P (Computer network architecture) --- Computer science. --- Computer communication systems. --- Operating systems (Computers). --- Information storage and retrieval. --- Management information systems. --- Computer Science. --- Computer Communication Networks. --- Information Storage and Retrieval. --- Operating Systems. --- Management of Computing and Information Systems. --- Computer architecture --- Computer network architectures --- Information storage and retrieva. --- Information Systems. --- Computer operating systems --- Computers --- Disk operating systems --- Systems software --- Operating systems --- Information storage and retrieval systems. --- Automatic data storage --- Automatic information retrieval --- Automation in documentation --- Computer-based information systems --- Data processing systems --- Data storage and retrieval systems --- Discovery systems, Information --- Information discovery systems --- Information processing systems --- Information retrieval systems --- Machine data storage and retrieval --- Mechanized information storage and retrieval systems --- Computer systems --- Electronic information resources --- Data libraries --- Digital libraries --- Information organization --- Information retrieval --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Electronic data processing --- Network computers --- Informatics --- Science --- EIS (Information systems) --- Executive information systems --- MIS (Information systems) --- Sociotechnical systems --- Information resources management --- Management --- Distributed processing --- Communication systems
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On behalf of the Organizing Committee, we would like to welcome you to the proceedings of the 10th International Conference on Database Systems for - vanced Applications (DASFAA 2005). This conference provides an international forumfortechnicaldiscussionamongresearchers,developersandusersofdatabase systems from academia, business and industry. DASFAA focuses on research in databasetheory,andthedevelopmentandapplicationsofadvancedDBMSte- nologies. This was the second time that this conference has been held in China, the ?rst time was in Hong Kong in 2001. China is the third largest nation in terms of size, with the largest population in the world. The capital, Beijing, is a great metropolis, famous in Asia and throughout the world. We therefore were most privileged to host this conference in this renowned location. This volume contains papers selected for presentation and includes the three keynote talks, by Dr. Philip Yu, Prof. Elisa Bertino and Prof. Deyi Li. The conference also featured two tutorials: (1) Data Mining Techniques for MicroarrayDatasets,byLeiLiu,JiongYangandAnthonyTung,and(2)Pattern Management:Models,Languages,andArchitecturalIssues,byBarbaraCatania. ThetechnicalprogramoftheconferencewasselectedbyadistinguishedProgram Committee led by two PC Co-chairs, Lizhu Zhou and Beng Chin Ooi. The 89 members, half of whom reside outside Asia, made the committee a truly inter- tional one. They faced a di?cult task in selecting 67 regular papers and 15 short papersfrommanyverygoodcontributions.Thisyearthenumberofsubmissions, 302, was a record high for DASFAA conferences since the ?rst conference held in 1989 in Seoul, Korea. We wish to express our thanks to the Program Committee members, external reviewers, and all authors for submitting their papers to this conference.
Information systems --- Computer. Automation --- ICT (informatie- en communicatietechnieken) --- IR (information retrieval) --- informatica --- multimedia --- informatiesystemen --- database management
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Computer architecture. Operating systems --- Information systems --- Artificial intelligence. Robotics. Simulation. Graphics --- Computer. Automation --- ICT (informatie- en communicatietechnieken) --- IR (information retrieval) --- informatiesystemen --- database management --- software engineering --- KI (kunstmatige intelligentie) --- computernetwerken --- robots
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Peer-to-peer (P2P) technology, or peer computing, is a paradigm that is viewed as a potential technology for redesigning distributed architectures and, consequently, distributed processing. Yet the scale and dynamism that characterize P2P systems demand that we reexamine traditional distributed technologies. A paradigm shift that includes self-reorganization, adaptation and resilience is called for. On the other hand, the increased computational power of such networks opens up completely new applications, such as in digital content sharing, scientific computation, gaming, or collaborative work environments. In this book, Vu, Lupu and Ooi present the technical challenges offered by P2P systems, and the means that have been proposed to address them. They provide a thorough and comprehensive review of recent advances on routing and discovery methods; load balancing and replication techniques; security, accountability and anonymity, as well as trust and reputation schemes; programming models and P2P systems and projects. Besides surveying existing methods and systems, they also compare and evaluate some of the more promising schemes. The need for such a book is evident. It provides a single source for practitioners, researchers and students on the state of the art. For practitioners, this book explains best practice, guiding selection of appropriate techniques for each application. For researchers, this book provides a foundation for the development of new and more effective methods. For students, it is an overview of the wide range of advanced techniques for realizing effective P2P systems, and it can easily be used as a text for an advanced course on Peer-to-Peer Computing and Technologies, or as a companion text for courses on various subjects, such as distributed systems, and grid and cluster computing.
Information retrieval --- Computer science --- Programming --- Computer architecture. Operating systems --- Information systems --- Computer. Automation --- MIS (management informatie systeem) --- computers --- informatiesystemen --- informatica management --- OS (operating system) --- computernetwerken --- computerkunde
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Database management --- Bases de données --- Congresses. --- Gestion --- Congrès --- Computer Science --- Engineering & Applied Sciences --- Computer science. --- Data structures (Computer science). --- Database management. --- Information storage and retrieval. --- Multimedia information systems. --- User interfaces (Computer systems). --- Computer Science. --- Data Structures, Cryptology and Information Theory. --- Database Management. --- Information Storage and Retrieval. --- Information Systems Applications (incl. Internet). --- Multimedia Information Systems. --- User Interfaces and Human Computer Interaction. --- Interfaces, User (Computer systems) --- Human-machine systems --- Human-computer interaction --- Computer-based multimedia information systems --- Multimedia computing --- Multimedia information systems --- Multimedia knowledge systems --- Information storage and retrieval systems --- Data base management --- Data services (Database management) --- Database management services --- DBMS (Computer science) --- Generalized data management systems --- Services, Database management --- Systems, Database management --- Systems, Generalized database management --- Electronic data processing --- Information structures (Computer science) --- Structures, Data (Computer science) --- Structures, Information (Computer science) --- File organization (Computer science) --- Abstract data types (Computer science) --- Informatics --- Science --- Data structures (Computer scienc. --- Information storage and retrieva. --- Multimedia systems. --- Data Structures and Information Theory. --- Information storage and retrieval systems. --- Automatic data storage --- Automatic information retrieval --- Automation in documentation --- Computer-based information systems --- Data processing systems --- Data storage and retrieval systems --- Discovery systems, Information --- Information discovery systems --- Information processing systems --- Information retrieval systems --- Machine data storage and retrieval --- Mechanized information storage and retrieval systems --- Computer systems --- Electronic information resources --- Data libraries --- Digital libraries --- Information organization --- Information retrieval --- Application software. --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Computer software
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