A statistical method for estimating the usefulness of text databases
| Autor: | Clement Yu, Weiyi Meng, King-Lup Liu, Naphtali Rishe, Wensheng Wu |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Web search query
Information retrieval Concept search Database Computer science Search analytics Search engine indexing Phrase search Query optimization computer.software_genre Query language Computer Science Applications Ranking (information retrieval) Search-oriented architecture Search engine Query expansion Computational Theory and Mathematics Web query classification Beam search Database search engine Sargable Data mining Metasearch engine computer Information Systems |
| Zdroj: | IEEE Transactions on Knowledge and Data Engineering. 14:1422-1437 |
| ISSN: | 1041-4347 |
| DOI: | 10.1109/tkde.2002.1047777 |
| Popis: | Searching desired data on the Internet is one of the most common ways the Internet is used. No single search engine is capable of searching all data on the Internet. The approach that provides an interface for invoking multiple search engines for each user query has the potential to satisfy more users. When the number of search engines under the interface is large, invoking all search engines for each query is often not cost effective because it creates unnecessary network traffic by sending the query to a large number of useless search engines and searching these useless search engines wastes local resources. The problem can be overcome if the usefulness of every search engine with respect to each query can be predicted. We present a statistical method to estimate the usefulness of a search engine for any given query. For a given query, the usefulness of a search engine in this paper is defined to be a combination of the number of documents in the search engine that are sufficiently similar to the query and the average similarity of these documents. Experimental results indicate that our estimation method is much more accurate than existing methods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|