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Unformatted text preview: rarchical subject categories, instead of listing them in an order by
how relevant the search engine thinks the site is to the search.
3. Subject Guide Search Engines. These search engines contain links of many
important resources on a topic.
They differ from subject directories search
engines in the sense that their search request interface has forms that contain
databases of sites on many subjects, organized into a subject classification scheme.
4. Meta Search Engines. These search engines do not create their own databases
but make use of the databases of other search engines. They quickly process the user's search request by invoking several individual search engines at once and
return the results compiled into a convenient format.
Some Popular Internet Search Engines
Today, there are more than two dozen major search engines available on the
WWW. Some of the popular ones are as follows:
1. HotBot (www.hotbot.com) provides extensive search options through the use
of query operators and forms. It allows the use of query operators in combination
with forms, which many other search engines do not allow. In addition to the
options found on the basic search form, it has an advanced search form.that
provides more precise filters, additional specifiers, and limiters.
Yahoo (www.yahoo.com) supports a query syntax that allows
inclusion/exclusion, phrase matching, wildcard matching, and title and URL
limiters. Like other search engines, Yahoo provides form-based searching on its
search options page, which also allows customization of the results display, and
3. Lycos (www.lycos.com) provides a good option of both basic and advanced
search features. Its basic search form has a drop-down menu that allows boolean
and phrase searching, natural language queries, and basic adjacency and proximity
searches. On the other hand, it has advanced search options, which allows the
user to limit results to sound or picture files, or pages offered as a part of the
Lycos services. These limiters may also i...
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This document was uploaded on 04/07/2014.
- Spring '14