Web Search Engines Seminar For Students is a program that is designed to locate stored data on the World Wide Web (WWW). Search engine indexes are complex and similar. The quality of the indexes breaks or makes the quality of search results.
The large number of users navigates the Web via search engines. It is more likely to display thousands of responses by typing a keyword or phrase and a handful are near to what we searching are located on secondary search pages. A web search engine helps a person to retrieve a number of references that match the content.
The first Web search engine was “Wandex”, collected by the World Wide Web Wanderer and other early search engine is Aliweb and the first “full text” crawler-based search engine was WebCrawler.
The steps which are involved in processing search engine are Document Gathering-done by Crawlers, spiders, Document Indexing-done by Indexer, Searching, and Visualisation of results. The most emerging technologies in today’s network are Google, yahoo, MSN etc.
The few challenges include that the web is growing faster than present technology search engine can possibly index, search engine has to revisit periodically, generated sites can be slow or difficult to index, sites are not indexable by search engines and this phenomenon is called invisible web, sites make use of tricks to manipulate the search engine to display them as the first result returned for some keywords. This may lead to search results being polluted.
The usage of a search engine depends on the relevance of the results it gives back. The methods of search change from time to time as Internet usage changes with new techniques evolve. Most search engines help methods to grade the results to provide the “best” results first. There are other types of search engine that enterprise search engines that search on intranets, personal search engines that search individual personal computers, and mobile search engines.
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