Is the full-text retrieval always effective?
نویسندگان
چکیده
منابع مشابه
NLP-Supported Full-Text Retrieval
The amount of information available in electronic form is growing exponentially , making it increasingly difficult to find the desired information. This is especially true of the World Wide Web, which has no central administration and thus no ordering scheme to help users find the information they need. Furthermore , most of the information is narrative, i.e., in the form of unstructured docume...
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We propose an approach to Distributed Information Retrieval based on the periodic and incremental centralisation of full-text indices of widely dispersed and autonomously managed content sources. Inspired by the success of the Open Archive Initiative’s protocol for metadata harvesting, the approach occupies middle ground between: (i) the crawling of content, and (ii) the distribution of retriev...
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This paper is concerned with the development of grammars suitable for full-text Information Retrieval. It rst sets out some of the design criteria which should be taken into account in writing such a grammar. Then the notation of AAx Grammars over a Finite Lattice (agfl) is described, a simple formalism for the morphosyntactic description of natural languages which has an ecient implementation....
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Because digital libraries are expensive to create and maintain, Internet analogs of public libraries—reliable, quality, community services—have only recently begun to appear. A serious obstacle to their creation is the provision of appropriate cataloguing information. Without a database of titles, authors and subjects, it is hard to offer the searching and browsing facilities normally available...
متن کاملOrdered Pattern Matching: towards Full-text Retrieval
A typical query in Information Retrieval consists of multiple keywords, and the target is to retrieve matching documents. Various selection heuristics and ranking criteria are based on the proximity of keywords. For this purpose, it helps if the positions of the keywords in the document are listed in sorted order. For traditional documents consisting of lists of words, existing data structures ...
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ژورنال
عنوان ژورنال: Journal of Information Processing and Management
سال: 2007
ISSN: 0021-7298,1347-1597
DOI: 10.1241/johokanri.49.700