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Arlington, Virginia USA
Apr. 1, 2012 to Apr. 5, 2012
ISBN: 978-0-7695-4747-3
pp: 738-749
Many applications process data in which there exists a ``conservation law'' between related quantities. For example, in traffic monitoring, every incoming event, such as a packet's entering a router or a car's entering an intersection, should ideally have an immediate outgoing counterpart. We propose a new class of constraints -- Conservation Rules -- that express the semantics and characterize the data quality of such applications. We give confidence metrics that quantify how strongly a conservation rule holds and present approximation algorithms (with error guarantees) for the problem of discovering a concise summary of subsets of the data that satisfy a given conservation rule. Using real data, we demonstrate the utility of conservation rules and we show order-of-magnitude performance improvements of our discovery algorithms over naive approaches.
Lukasz Golab, Howard Karloff, Flip Korn, Barna Saha, Divesh Srivastava, "Discovering Conservation Rules", ICDE, 2012, 2013 IEEE 29th International Conference on Data Engineering (ICDE), 2013 IEEE 29th International Conference on Data Engineering (ICDE) 2012, pp. 738-749, doi:10.1109/ICDE.2012.105
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