Search (9 results, page 1 of 1)

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Date

23. 1.1999 19:32:22

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Abstract

Presents a view of portal sites as a radically different model from those currently embraced by traditional information companies. The concept of a portal as a starting point that Web users pass through is an uncomfortable one for most traditional services, which are designed to be one-stop destinations for information. It will become increasingly difficult for even the largest data warehouses to compete with the rising volume of Web content if closed end information models are not abandoned in favour of distributed ones which better reflect the reality of what is available to information consumers. Dow Jones Interactive Publishing is among the first to embrace a distributed model by indexing the sites which it believes have customer value, regardless of whether they offer their content on the subscriber service

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Abstract

The increasing importance of patent information for companies has been matched by the growth in Internet and WWW based patent information services

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Abstract

Used on its own, Boolean searching will only find between 20-25% of the relevant information. However, Personal Librarian has search tools which offer smart searching techniques, in particular a relevance ranking function. Although the software does not offer full natural language searching, it provides a natural language perspective. Although designed originally for the creation of inhouse databases, Personal Librarian is now used for a range of other applications including electronic publishing on CD-ROM distribution. Personal Librarian may be built on UNIX, DOS or Windows and may be searched on any other platform

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Abstract

Reviews Patent Explorer which serves as an example of the growing trend towards increasing the sophistication of Internet based patent information services. it offers both European and USA patents in fulltext and image form and customisable searching for both novice and experienced searchers. Initial user response is favourable. It will have 3 pricing options: guest member offering free searching on a subset of the database, individual and corporate membership

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Abstract

Describes the shortcomings of search engines for the WWW comparing their current capabilities to those of the first generation CD-ROM products. Some allow phrase searching and most are improving their Boolean searching. Few allow truncation, wild cards or nested logic. They are stateless, losing previous search criteria. Unlike the indexing and classification systems for today's CD-ROMs, those for Web pages are random, unstructured and of variable quality. Considers that at best Web search engines can only offer free text searching. Discusses whether automatic data classification systems such as Infoseek Ultra can overcome the haphazard nature of the Web with neural network technology, and whether Boolean search techniques may be redundant when replaced by technology such as the Euroferret search engine. However, artificial intelligence is rarely successful on huge, varied databases. Relevance ranking and automatic query expansion still use the same simple inverted indexes. Most Web search engines do nothing more than word counting. Further complications arise with foreign languages

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Abstract

Traces the early developments, in 1967, that were to form the foundation of today's LEXIS-NEXIS services. Originally built on a text retrieval system designed for the US Air Force by the Ohio based Data Corporation, LEXIS-NEXIS began life as a text retrieval system for private use by the Ohio State Bas Association. Describes the subsequent acquisition by Mead Corp., its launch as a commercial online service and its later purchase by Reed Elsevier. Outlines the changes and acquisitions that have taken place over 30 years that have led to LEXIS-NEXIS becoming the world's largest onlien host. Describes the current activities of the service, in particular its activities in Europe following the formation of LEXIS-NEXIS EUROPE Ltd., and work done to adapt the service to the Internet. Notes some of the competitors to LEXIS-NEXIS: Dialog; Data-Star; FT Profile and MAID

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