4.4 Article Proceedings Paper

JENNER: Just-in-time Enrichment in Query Processing

期刊

PROCEEDINGS OF THE VLDB ENDOWMENT
卷 15, 期 11, 页码 2666-2678

出版社

ASSOC COMPUTING MACHINERY
DOI: 10.14778/3551793.3551822

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资金

  1. DARPA [FA8750-16-2-0021]
  2. NSF [1952247, 2133391, 2032525, 2008993]

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This study introduces a strategy called JENNER for interactive analytics over incoming data. JENNER progressively improves query answers by exploiting the tradeoffs between cost and quality. Experimental results show that JENNER performs significantly better than naive strategies.
Emerging domains, such as sensor-driven smart spaces and social media analytics, require incoming data to be enriched prior to its use. Enrichment often consists of machine learning (ML) functions that are too expensive/infeasible to execute at ingestion. We develop a strategy entitled Just-in-time ENrichmeNt in quERy Processing (JENNER) to support interactive analytics over data as soon as it arrives for such application context. JENNER exploits the inherent tradeo.s of cost and quality often displayed by the ML functions to progressively improve query answers during query execution. We describe how JENNER works for a large class of SPJ and aggregation queries that form the bulk of data analytics workload. Our experimental results on real datasets (IoT and Tweet) show that JENNER achieves progressive answers performing significantly better than the naive strategies of achieving progressive computation.

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