An Exemplar Text is the ideal model result for Web searches: It characterises what we would like our queries to find. Yet, this rarely happens, since the World Wide Web (WWW) suffers from several deficiencies as an Information Retrieval system. Firstly, the Web does not contain a document collection since the material it contains has not been gathered for one subject or purpose. It is also inco...

BACKGROUND/AIMS The success of the treatment in patients with retinopathy of prematurity (ROP) is mainly associated with timely diagnosis and appropriate management. Information dissemination is crucial for the outcome of ROP. This study aimed to evaluate the quality of the information about ROP available for patients on the internet. METHODS Cross sectional study. In March 2004 the ROP infor...

It has become increasingly difficult to locate relevant information on the Web, even with the help of Web search engines. Two approaches to addressing the low precision and poor presentation of search results of current search tools are studied: meta-search and document categorization. Meta-search engines improve precision by selecting and integrating search results from generic or domain-speci...

In this paper, we propose a PWM (Personal Web Map) which is a personal and small database of interesting Web pages to a user, and develop a method to construct it under the user’s control of multiple Web robots. Though general search engine with large databases like YaHoo, AltaVista, MetaCrawler are valid, it is important that a user constructs a small, personal database of relevant Web pages t...

Introduction Though automatic information retrieval (IR) existed before World Wide Web (WWW), post-Internet era has made it indispensable. IR is sub field of computer science concerned with presenting relevant information, gathered from online information sources to users in response to search queries. Various types of IR tools have been created, solely to search information on Internet. Apart ...

Several popular and useful search engines—such as AltaVista, Excite, HotBot, Infoseek, Lycos, and Northern Light—attempt to maintain full-text indexes of the World Wide Web. However, relying on a single standard search engine has limitations. The standard search engines have limited coverage,1,2 outdated databases, and are sometimes unavailable due to problems with the network or the engine its...

This paper describes a system being developed to identify Internet WWW pages that most closely respond to a users' requirements. The system is designed to enhance, rather than replace existing search engines. It collects pages identified by the search engine, and then uses an external lexical thesaurus to analyse their contents. This provides a secondary ordering metric for the pages based on a...