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  • × author_ss:"Klein, S.T."
  1. Bookstein, A.; Klein, S.T.: Compression, information theory, and grammars : a unified approach (1990) 0.01 
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    Source
    ACM transaction on information systems. 8(1990), S.27-49
  2. Fraenkel, A.S.; Klein, S.T.: Information retrieval from annotated texts (1999) 0.01 
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    Source
    Journal of the American Society for Information Science. 50(1999) no.10, S.845-854
  3. Bookstein, A.; Klein, S.T.; Raita, T.: Clumping properties of content-bearing words (1998) 0.00 
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    Abstract
    Information Retrieval Systems identify content bearing words, and possibly also assign weights, as part of the process of formulating requests. For optimal retrieval efficiency, it is desirable that this be done automatically. This article defines the notion of serial clustering of words in text, and explores the value of such clustering as an indicator of a word's bearing content. This approach is flexible in the sense that it is sensitive to context: a term may be assessed as content-bearing within one collection, but not another. Our approach, being numerical, may also be of value in assigning weights to terms in requests. Experimental support is obtained from natural text databases in three different languages
    Source
    Journal of the American Society for Information Science. 49(1998) no.2, S.102-114
  4. Klein, S.T.: On the use of negation in Boolean IR queries. (2009) 0.00 
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    Abstract
    The negation operator, in various forms in which it appears in Information Retrieval queries, is investigated. The applications include negated terms in Boolean queries, more specifically in the presence of metrical constraints, but also negated characters used in the definition of extended keywords by means of regular expressions. Exact definitions are suggested and their usefulness is shown on several examples. Finally, some implementation issues are discussed, in particular as to the order in which the terms of long queries, with or without negated keywords, should be processed, and efficient heuristics for choosing a good order are suggested.
    Source
    Information processing and management. 45(2009) no.2, S.298-311
  5. Klein, S.T.: Processing queries with metrical constraints in XML-based IR systems (2008) 0.00 
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    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.1, S.86-97

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