Wide Area Information Servers
<networking, information science> (WAIS) A distributed information retrieval system.
WAIS is supported by Apple Computer, Thinking Machines and Dow Jones.
s are able to retrieve documents using keywords.
The search returns a list of documents, ranked according to the frequency of occurrence of the keyword(s) used in the search.
The client can retrieve text or multimedia
documents stored on the server
WAIS offers simple natural language
input, indexed searching for fast retrieval, and a "relevance feedback" mechanism which allows the results of initial searches to influence future searches.
It uses the ANSI Z39.50
implementations are available.
Other information retrieval systems include archie
, and World-Wide Web