READIT - 2009 - Indira Gandhi Centre for Atomic Research
READIT - 2009 - Indira Gandhi Centre for Atomic Research
READIT - 2009 - Indira Gandhi Centre for Atomic Research
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Proceedings of <strong>READIT</strong>-<strong>2009</strong>, Kalpakkam - 603 102, 29-30 Dec <strong>2009</strong><br />
“Directories,” which maintain ordered lists of websites provide e.g. Yahoo similar services!<br />
www.liv.ac.uk/webteam/glossary/<br />
A tool or program, which allows keyword searching <strong>for</strong> relevant sites or in<strong>for</strong>mation on<br />
the Internet. General and topic-specific search engines are prevalent today, <strong>for</strong> example,<br />
Education World, WebCrawler, Info seek, Lycos, and Yahoo are examples of search engines.<br />
www.education-world.com/help/glossary.shtml<br />
HOW DOES SEARCH ENGINES WORK?<br />
Search engine databases are selected and built by computer robot programs called<br />
spiders. Although it is said they "Crawl" the web in their hunt <strong>for</strong> pages to include, in truth<br />
they stay in one place. They find the pages <strong>for</strong> potential inclusion by following the links in the<br />
pages they already have in their database (i.e., already "know about"). They cannot think or<br />
type a URL or use judgment to "decide" to go look something up and see what's on the web<br />
about it. (Computers are getting more sophisticated all the time, but they are still brainless.)<br />
After spiders find pages, they pass them on to another computer program <strong>for</strong><br />
"indexing." This program identifies the text, links, and other content in the page and stores it in<br />
the search engine database's files so that the database can be searched by keyword and<br />
whatever more advanced approaches are offered, and the page will be found if your search<br />
matches its content.<br />
SEMANTIC WEB SEARCH ENGINES:<br />
Unlike traditional search engines, which crawl the Web gathering Web pages, Semantic<br />
Web search engines index RDF data stored on the Web and provide an interface to search<br />
through the crawled data. Below is a list of Semantic Web search engines that are currently<br />
under development. Semantic Search engines are:<br />
1. SEMANTIC WEB SEARCH ENGINE (SWSE): is a search engine <strong>for</strong> the RDF Web<br />
on the Web, and provides the equivalent services a search engine currently provides <strong>for</strong><br />
the HTML Web. The system explores and indexes the Semantic Web and provides an<br />
easy-to-use interface through which users can find the in<strong>for</strong>mation they are looking <strong>for</strong>.<br />
Because of the inherent semantics of RDF and other Semantic Web languages, the<br />
search and in<strong>for</strong>mation retrieval capabilities of SWSE are potentially much more<br />
powerful than those of current search engines.<br />
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