Assessment on precision-imprecision essentials in Semantic query processing.
نویسندگان
چکیده
منابع مشابه
Automated Assessment of Aggregate Query Imprecision in Dynamic Environments
Queries are widely used for acquiring data distributed in opportunistically formed mobile networks. However, when queries are executed in such dynamic settings, the returned result may not be consistent, i.e., it may not accurately reflect the state of the environment. It can thus be difficult to reason about the meaning of a query’s result. Reasoning about imperfections in the result becomes e...
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Introduction Methods for query processing are an essential part of database and information systems (see e.g. [Garcia-Molina et.al. 2002]). Named queries, also called views, are not only used to access information, but also for (re-)structuring and integrating information [Halevy 2001]. On the World Wide Web, effective query processing used to be impossible due to the lack of data structures an...
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Query Expansion (QE) is one of the most important mechanisms in the information retrieval field. A typical short Internet query will go through a process of refinement to improve its retrieval power. Most of the existing QE techniques suffer from retrieval performance degradation due to imprecise choice of query’s additive terms in the QE process. In this paper, we introduce a novel automated Q...
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Queries are widely used for acquiring data and services distributed across opportunistically formed mobile networks. However, when queries are executed in such highly dynamic settings, the returned result may not be consistent, i.e., it may not accurately reflect the state of the environment. As such, it can be difficult to reason about the meaning of a returned query result. Reasoning about im...
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We briefly describe the results of an experimental study on the incremental creation of context out of the results of targeted queries, and discuss the increase in retrieval precision that results from the incremental enrichment of
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ژورنال
عنوان ژورنال: Indian Journal of Science and Technology
سال: 2015
ISSN: 0974-5645,0974-6846
DOI: 10.17485/ijst/2015/v8i13/55330