Optimizing Sample Design for Approximate Query Processing
نویسندگان
چکیده
منابع مشابه
Optimizing resource allocation for approximate real-time query processing
Query optimization techniques are proved to be essential for high performance of database management systems. In the context of new querying paradigms, such as similarity based search, exact query evaluation is neither computationally feasible nor meaningful, and approximate query evaluation is the only reasonable option. In this paper a problem of resource allocation for approximate evaluation...
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Sketch techniques have undergone extensive development within the past few years. They are especially appropriate for the data streaming scenario, in which large quantities of data flow by and the the sketch summary must continually be updated quickly and compactly. Sketches, as presented here, are designed so that the update caused by each new piece of data is largely independent of the curren...
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Visual data exploration tools allow users to quickly gather insights from new datasets. As dataset sizes continue to increase, though, new techniques will be necessary to maintain the interactivity guarantees that these tools require. Approximate query processing (AQP) attempts to tackle this problem and allows systems to return query results at “human speed.” However, existing AQP techniques s...
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Despite 25 years of research in academia, approximate query processing (AQP) has had little industrial adoption. One of the major causes for this slow adoption is the reluctance of traditional vendors to make radical changes to their legacy codebases, and the preoccupation of newer vendors (e.g., SQL-on-Hadoop products) with implementing standard features. On the other hand, the few AQP engines...
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Query processing in sensor networks has recently received significant attention from the research community. Processing queries in an energy efficient manner is a crucial challenge. There exists numerous ways to process a query in sensor networks. Choosing an efficient way to process the query is essential for query optimization. In this paper, we consider a query optimizer for sensor networks....
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ژورنال
عنوان ژورنال: International Journal of Knowledge-Based Organizations
سال: 2013
ISSN: 2155-6393,2155-6407
DOI: 10.4018/ijkbo.2013100101