نتایج جستجو برای: query processing
تعداد نتایج: 543759 فیلتر نتایج به سال:
web search engines are one of the most popular tools on the internet which are widely-used by expert and novice users. constructing an adequate query which represents the best specification of users’ information need to the search engine is an important concern of web users. query expansion is a way to reduce this concern and increase user satisfaction. in this paper, a new method of query expa...
Query being the essential in an Information Retrieval (IR) system and user looking to fulfil information need has to formulate a query usually consisting of a small set of keywords summarizing the information need. It reiterates the significance of the query processing in an information retrieval system. The main objective of query processing is to translate a user level query into a low level ...
Wireless Sensor Network is an infrastructure comprising of sensing, and computing. The communication elements in sensor network give capability to instrument, watch, and respond to events and phenomenon in a particular situation. Query processing in sensor network first transfers the query generated position to the node where the result obtained is similar to this query. Collaborative Query-Cen...
The eeciency of common subexpression identiication is critical to the performance of multiple-query processing. In this paper, we develop a multi-graph for representing and facilitating the processing of multiple queries. In addition to the traditional multiple-query processing approaches in exploiting common subexpressions for identical and subsumption cases, the proposed multi-graph processin...
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