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A Dip in the Reservoir: Maintaining Sample Synopses of Evolving Datasets Rainer Gemulla (University of Technology Dresden) Wolfgang Lehner (University of Technology Dresden) Peter J. Haas (IBM Almaden Research Center) - Rainer Gemulla (University of Technology Dresden) ... Faculty of Computer Science, Institute System ... corrects inclusion probabilies. General idea (insertion) ...

Rainer Gemulla (University of Technology Dresden) ... Faculty of Computer Science, Institute System ... corrects inclusion probabilies. General idea (insertion) ...

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Rainer Gemulla, Wolfgang Lehner and Peter J. Haas PowerPoint PPT Presentation

Rainer Gemulla, Wolfgang Lehner and Peter J. Haas - Random sampling is an appealing approach to build synopses of large data streams ... uses arriving insertions to compensate for deletions ...

Random sampling is an appealing approach to build synopses of large data streams ... uses arriving insertions to compensate for deletions ...

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Deferred Maintenance of Disk-Based Random Samples Rainer Gemulla (University of Technology Dresden) Wolfgang Lehner (University of Technology Dresden) - Random sampling approximate query answering data mining data stream processing query optimization data integration Offline Sampling Precomputed samples pros avoid ...

Random sampling approximate query answering data mining data stream processing query optimization data integration Offline Sampling Precomputed samples pros avoid ...

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Query Optimization PowerPoint PPT Presentation

Query Optimization - Query Optimization Allison Griffin Importance of Optimization Time is money Queries are faster Helps everyone who uses the server Solution to speed lies in the ...

Query Optimization Allison Griffin Importance of Optimization Time is money Queries are faster Helps everyone who uses the server Solution to speed lies in the ...

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