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Predicate result range caching for continuous queries

Published: 14 June 2005 Publication History

Abstract

Many analysis and monitoring applications require the repeated execution of expensive modeling functions over streams of rapidly changing data. These applications can often be expressed declaratively, but the continuous query processors developed to date are not designed to optimize queries with expensive functions. To speed up such queries, we present CASPER: the CAching System for PrEdicate Result ranges. CASPER computes and caches predicate result ranges, which are ranges of stream input values where the system knows the results of expensive predicate evaluations. Over time, CASPER expands ranges so that they are more likely to contain future stream values. This paper presents the CASPER architecture, as well as algorithms for computing and expanding ranges for a large class of predicates. We demonstrate the effectiveness of CASPER using a prototype implementation and a financial application using real bond market data.

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  1. Predicate result range caching for continuous queries

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    cover image ACM Conferences
    SIGMOD '05: Proceedings of the 2005 ACM SIGMOD international conference on Management of data
    June 2005
    990 pages
    ISBN:1595930604
    DOI:10.1145/1066157
    • Conference Chair:
    • Fatma Ozcan
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 14 June 2005

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    • (2012)Linked Stream Data ProcessingReasoning Web. Semantic Technologies for Advanced Query Answering10.1007/978-3-642-33158-9_7(245-289)Online publication date: 2012
    • (2010)Data Stream ManagementSynthesis Lectures on Data Management10.2200/S00284ED1V01Y201006DTM0052:1(1-73)Online publication date: Jan-2010
    • (2010)Query result caching for multiple event-driven continuous queriesInformation Systems10.1016/j.is.2009.04.00335:1(94-110)Online publication date: 1-Jan-2010
    • (2008)PrefilterProceedings of the 2nd international workshop on Scalable stream processing system10.1145/1379272.1379280(29-37)Online publication date: 29-Mar-2008
    • (2006)Adaptive execution of variable-accuracy functionsProceedings of the 32nd international conference on Very large data bases10.5555/1182635.1164175(547-558)Online publication date: 1-Sep-2006
    • (2006)On-the-fly sharing for streamed aggregationProceedings of the 2006 ACM SIGMOD international conference on Management of data10.1145/1142473.1142543(623-634)Online publication date: 27-Jun-2006
    • (2006)Operators for Expensive Functions in Continuous QueriesProceedings of the 22nd International Conference on Data Engineering10.1109/ICDE.2006.110Online publication date: 3-Apr-2006

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