Abstract
With advancement in technology, many individuals are getting familiar with the internet a lot of users seek for information on the World Wide Web (WWW) using variety of search engines. This research work evaluates the retrieval effectiveness of Google, Yahoo, Bing, AOL and Baidu. Precision, relative recall and response time were considered for this evaluation, a total of 24 search queries were sampled based on information queries, navigational queries and transactional queries. They are categorized into single word queries, double word queries, sentence queries and alphanumeric queries. Finally the overall average of all the designated queries shows Bing has the best score based on relative recall with 0.54, Google has the best response time with 0.39s and has the highest precision with 1.37.
Highlights
The primary objective of information retrieving system (IRS) is to find or access relevant documents with respect to user’s query
While searching for information on World Wide Web (WWW), one usually carries out a query request through a term based search engine
The growth was as a result of increase of the web servers, value and the number of the web pages that are accessible by these servers
Summary
The primary objective of information retrieving system (IRS) is to find or access relevant documents with respect to user’s query. A web search engine is an information retrieval system, which is used to locate Web pages relevant to user queries. Website indexing searches for specific text on websites that the site administrator defines If any of those web pages contain hyperlinks, it spiders through those pages, identifying the title, blurb, document type, and locate in a standard easy to read format. The search engines performance will be evaluated based on retrieval effectiveness using three metrics; precision, recall, and response time. SEARCH ENGINES Search engines are programs that search documents on the World Wide Web as requested by the user seeking for information Lewandowski (2008). EVALUATING SEARCH EFFECTIVENESS OF SOME SELECTED SEARCH ENGINES Table 1: Search Queries
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