منابع مشابه
Efficient Extended Boolean Retrieval
Extended Boolean retrieval (EBR) models were proposed nearly three decades ago, but have had little practical impact, despite their significant advantages compared to either ranked keyword or pure Boolean retrieval. In particular, EBR models produce meaningful rankings; their query model allows the representation of complex concepts in an and–or format; and they are scrutable, in that the score...
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Searching for relevant documents is a laborious task involved in preparing systematic reviews of biomedical literature. Currently, complex Boolean queries are iteratively developed, and then each document of the final query result is assessed for relevance. However, the result set sizes of these queries are hard to control, and in practice it is difficult to balance the competing desires to kee...
متن کاملSemantic Boolean Arabic Information Retrieval
Arabic language is one of the most widely spoken languages. This language has a complex morphological structure and is considered as one of the most prolific languages in terms of article linguistic. Therefore, Arabic Information Retrieval (AIR) models need specific techniques to deal with this complex morphological structure. This paper aims to develop an integrate AIR frameworks. It lists and...
متن کاملInformation Retrieval by Enhanced Boolean Model
The interest for information retrieval has existed long before the Internet. Boolean retrieval is the most simple of these retrieval methods and relies on the use of Boolean operators. The terms in a query are linked together with AND, OR and NOT. This method is often used in search engines on the Internet because it is fast and can therefore be used online. This method has also its problems. T...
متن کاملSymmetrically Private Information Retrieval ( Extended Abstract )
In this paper we present a single-round, single-server symmetrically private information retrieval scheme, in which privacy of user follows from intractability of the quadratic residuacity problem and the privacy of the database follows from the XOR assumption for quadratic residues introduced in this paper. The communication complexity of the proposed scheme for retrieving one bit can be made ...
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ژورنال
عنوان ژورنال: Communications of the ACM
سال: 1983
ISSN: 0001-0782,1557-7317
DOI: 10.1145/182.358466