What is the frequency of use of web search engines
and reference sources for research activities by undergraduates?
Hybrid search engine is a combination of the data searched by web search engine
The first Web search engine
was "Wandex", a now-defunct index collected by the World Wide Web Wanderer, a web crawler developed by Matthew Gray at MIT in 1993.
The future development of Web search engines
and browser environments leaves no doubt that this combination will be one of the most frequently used tools for current data retrieval.
In October 2001 Google claimed to have the largest database of any Web search engine
-- it was searching a database with links to more than 1,600 million Web pages.
Chapter 12 provides an overview and sampling of the numerous meta-search engines, while Chapter 13 describes other Web search engines
and where to learn about them.
As with Web search engines
, an important confusion to overcome is explaining that different academic databases use different syntax for expressing the same Boolean concepts.
We tested whether WebSCSA im proves retrieval of relevant information on top of Web search engines
results and how well WebSCSA serves as an agent browser for the user.
This site boasts a powerful search engine, CPA Online PowerSearch, that, in addition to scanning its own site, links to a dozen Web search engines
to locate exactly what you need.
Finding what you need on the Web can be like searching a roomful of file cabinets labeled "A-Z." Web search engines
often provide an excessive number of sites to screen, and provide no guide to data quality.
Autonomy Corp Plc, the UK knowledge management software developer, has released ActiveKnowledge, its online research tool (CI No 3,622) and said it expects most web search engines
to eventually run on similar technology.
Pattern-matching techniques based on neural networking are leagues above web search engines
. But their complexity, and performance-sapping hardware appetite keep them restricted to those with very deep pockets.