System Architecture for Approximate Query Processing
نویسندگان
چکیده
منابع مشابه
An Architecture for Approximate Real-Time Query Optimization and Processing
High-level declarative scripting languages are considered to be an effective tool for specification and execution of complex analytical data processing scenarios as they can hide the complexity of underlying heterogeneous processing environment. A growing demand to process huge amounts of data under real-time requirements as well as advanced similaritybased models raises the need in approximate...
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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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Database flexible querying is an alternative to the classic one for users. The use of Formal Concepts Analysis (FCA) makes it possible to make approximate answers that those turned over by a classic DataBase Management System (DBMS). Some applications do not need exact answers. However, flexible querying can be expensive in response time. This time is more significant when the flexible querying...
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ژورنال
عنوان ژورنال: Computer and Information Science
سال: 2016
ISSN: 1913-8997,1913-8989
DOI: 10.5539/cis.v9n2p156