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Searching for authors named "Spyros Ligoudistianos" – sorted by Relevance.

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Help! 5 documents found, showing 1 through 5.
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  • Quality-Oriented Optimization of the Design of the Global Data Warehouse  
  • by Panos Vassiliadis, Spyros Ligoudistianos, Timos Sellis, Dimitri Theodoratos
  • …Decisionanalysts require fromdatawarehouse syste ms toprovide thehighest level of data andservicequality. TheDataStagingArea (DS A) is the central layer of thedata warehousearchitecture that integratesdata fromth edifferent enterprisesources. The DSAcanbe seenas set aof materializedviews defi nedove…
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  • Designing the Global Data Warehouse with SPJ Views  
  • by Dimitri Theodoratos, Spyros Ligoudistianos, Timos Sellis — 1999 — Proc. of the 11th Intl. Conf. on Advanced Information Systems Engineering
  • …A global Data warehouse (DW) integrates data from multiple distributed heterogeneous databases and other information sources. A global DW can be abstractly seen as a set of materialized views. The selection of views for materialization in a DW is an important decision in the implementation of a DW. …
  • Cited by 9 (3 self) – Add To MetaCart
  • Heuristic Algorithms for Designing a Data Warehouse with SPJ Views  
  • by Spyros Ligoudistianos Timos, Timos Sellis, Dimitri Theodoratos, Yannis Vassiliou — 1999 — In Proceedings of the International Conference on Data Warehousing and Knowledge Discovery (DAWAK'99
  • …. A Data Warehouse (DW) can be abstractly seen as a set of materialized views defined over relations that are stored in distributed heterogeneous databases. The selection of views for materialization in a DW is thus an important decision problem. The objective is the minimization of the combination …
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  • Experimental Evaluation of Data Warehouse Configuration Algorithms  
  • by Informatik V, S. Ligoudistianos, D. Theodoratos, T. Sellis, Spyros Ligoudistianos Dimitri, Dimitri Theodoratos, Timos Sellis — 1998 — In Proc. of the 9th Intl. Workshop on Database and Expert Systems Applications
  • …A Data Warehouse (DW) can be seen as a set of materialized views defined over relations that are stored in remote heterogeneous database systems. When a query is posed to the DW, it is evaluated locally, using only the materialized views. The DW configuration problem is the problem of selecting an o…
  • Cited by 1 (1 self) – Add To MetaCart
  • Spyros Ligoudistianos Timos Sellis Dimitri Theodoratos Yannis Vassiliou  
  • by Department Of Electrical, Spyros Ligoudistianos, Timos Sellis, Dimitri Theodoratos, Yannis Vassiliou — 1999 — In Proceedings of the International Conference on Data Warehousing and Knowledge Discovery (DAWAK'99
  • …. A Data Warehouse #DW# can be abstractly seen as a set of materialized views de#ned over relations that are stored in distributed heterogeneous databases. The selection of views for materialization in a DWisthus an important decision problem. The objective is the minimization of the combination of …
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