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  • × author_ss:"Abdelali, A."
  • × year_i:[2000 TO 2010}
  1. Abdelali, A.; Cowie, J.; Soliman, H.S.: Improving query precision using semantic expansion (2007) 0.01 
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    Abstract
    Query Expansion (QE) is one of the most important mechanisms in the information retrieval field. A typical short Internet query will go through a process of refinement to improve its retrieval power. Most of the existing QE techniques suffer from retrieval performance degradation due to imprecise choice of query's additive terms in the QE process. In this paper, we introduce a novel automated QE mechanism. The new expansion process is guided by the semantics relations between the original query and the expanding words, in the context of the utilized corpus. Experimental results of our "controlled" query expansion, using the Arabic TREC-10 data, show a significant enhancement of recall and precision over current existing mechanisms in the field.
    Source
    Information processing and management. 43(2007) no.3, S.705-716
    Type
    a
  2. Abdelali, A.: Localization in modern standard Arabic (2004) 0.00 
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    Abstract
    Modern Standard Arabic (MSA) is the official language used in all Arabic countries. In this paper we describe an investigation of the uniformity of MSA across different countries. Many studies have been carried out locally or regionally an Arabic and its dialects. Here we look an a more global scale by studying language variations between countries. The source material used in this investigation was derived from national newspapers available an the Web, which provided samples of common media usage in each country. This corpus has been used to investigate the lexical characteristics of Modern Standard Arabic as found in 10 different Arabic speaking countries. We describe our collection methods, the types of lexical analysis performed, and the results of our investigations. With respect to newspaper articles, MSA seems to be very uniform across all the countries included in the study, but we have detected various types of differences, with implications for computational processing of MSA.
    Source
    Journal of the American Society for Information Science and technology. 55(2004) no.1, S.23-28
    Type
    a

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