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检索条件"主题词=Object-oriented databases"
913 条 记 录,以下是281-290 订阅
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Dynamic relationships in object oriented databases: A uniform approach  10th
Dynamic relationships in object oriented databases: A unifor...
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10th International Conference on Database and Expert Systems Applications, DEXA 1999
作者: Rashid, Awais Sawyer, Peter Computing Department Lancaster University LancasterLA1 4YR United Kingdom
In this paper we present a uniform approach to dynamic relationships in object oriented databases. We present our relationship categorisation based on dividing the object database into three virtual spaces each hostin... 详细信息
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An experimental performance evaluation of join algorithms for parallel object databases  7
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7th European Conference on Parallel Computing, Euro-Par 2001
作者: de Sampaio, Sandra F. Mendes Smith, Jim Paton, Norman W. Watson, Paul Department of Computer Science University of Manchester ManchesterM13 9PL United Kingdom Department of Computing Science University of Newcastle upon Tyne NewcastleNE1 7RU United Kingdom
Parallel relational databases have been successful in providing scalable performance for data intensive applications, and much work has been carried out on query processing techniques in such systems. However, althoug... 详细信息
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A query calculus for spatio-temporal object databases
A query calculus for spatio-temporal object databases
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8th International Symposium on Temporal Representation and Reasoning, TIME 2001
作者: Griffiths, Tony Fernandes, Alvaro A.A. Djafri, Nassima Paton, Norman W. Department of Computer Science University of Manchester Oxford Road Manchester M13 9PL United Kingdom
The development of any comprehensive proposal for spatio-temporal databases involves significant extensions to many aspects of a non-spatio-temporal architecture. One aspect that has received less attention than most ... 详细信息
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An experimental performance evaluation of incremental materialized view maintenance in object databases  3rd
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3rd International Conference on Data Warehousing and Knowledge Discovery, DaWaK 2001
作者: Ali, M. Akhtar Paton, Norman W. Fernandes, Alvaro A. A. School of Computing and Mathematics University of Northumbria Newcastle Newcastle Upon TyneNE1 8ST United Kingdom Department of Computer Science University of Manchester Oxford Road ManchesterM13 9PL United Kingdom
The development of techniques for supporting incremental maintenance of materialized views has been an active research area for over twenty years. However, although there has been much research on methods and algorith... 详细信息
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An object-oriented database design for improved performance
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DATA & KNOWLEDGE ENGINEERING 2001年 第2期37卷 117-138页
作者: Gorla, N Wayne State Univ Informat Syst & Mfg Dept Detroit MI 48202 USA
object-oriented databases (OODBs) are known to be rich in functionality but poor in performance. One of the important factors that affect performance is the physical database design. We developed a methodology for the... 详细信息
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A temporal versioned object-oriented data schema model
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COMPUTERS & MATHEMATICS WITH APPLICATIONS 2001年 第1-2期41卷 177-192页
作者: Rodríguez, L Ogata, H Yano, Y Univ Tokushima Fac Engn Dept Informat Sci & Intelligent Syst Tokushima 770 Japan
This paper describes in a formal way a data schema model which introduces temporal and versioning schema features in an object-oriented environment, In our model, the schema is time dependent and the history of the ch... 详细信息
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ROVER: flexible yet consistent evolution of relationships
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DATA & KNOWLEDGE ENGINEERING 2001年 第1期39卷 27-50页
作者: Claypool, KT Rundensteiner, EA Heineman, GT Worcester Polytech Inst Dept Comp Sci Worcester MA 01609 USA
Relationships have been repeatedly identified as an important object-oriented modeling construct. Most emerging modeling standards such as the object database management group (ODMG) object model and UML have some sup... 详细信息
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Compensation methods to support cooperative applications: A case study in automated verification of schema requirements for an advanced transaction model
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CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE 2001年 第11期13卷 1013-1032页
作者: Spelt, D Even, S Univ Twente Ctr Telemat & Informat Technol NL-7500 AE Enschede Netherlands
Compensation plays an important role in advanced transaction models, cooperative work and workflow systems. A schema designer is typically required to supply for each transaction T another transaction T-1 to semantica... 详细信息
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Genetic algorithm-based approach to allocation of distributed objects using graph models
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INTEGRATED COMPUTER-AIDED ENGINEERING 2001年 第2期8卷 135-150页
作者: Choi, S Oh, JW Wu, C Seoul Natl Univ Sch Engn & Comp Sci SE Lab Seoul South Korea Duksung Womens Univ Sch Comp Sci Seoul South Korea
In this paper, the partitioning/allocation model and algorithm for mapping object-oriented (OO) applications into the heterogeneous distributed environments are proposed. Our model applies the graph-theoretic approach... 详细信息
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A cost-based buffer replacement algorithm for object-oriented database systems
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INFORMATION SCIENCES 2001年 第1-4期138卷 99-117页
作者: Park, CM Whang, KY Lee, JJ Song, IY Korea Adv Inst Sci & Technol Adv Informat Technol Res Ctr AITrc Dept Comp Sci Taejon 305701 South Korea Drexel Univ Coll Informat Sci & Technol Philadelphia PA 19104 USA
Many object-oriented database systems manage object buffers to provide fast access to objects. Traditional buffer replacement algorithms based on fixed-length pages simply assume that the cost incurred by operating a ... 详细信息
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