TY  - JOUR
AU  - Alhroob, Aysh 
AU  - Khafajeh, Hayel 
AU  - Innab, Nisreen 
PY  - 2013
TI  - Evaluation of Different Query Expansion Techniques for Arabic Text Retrieval System
JF  - American Journal of Applied Sciences
VL  - 10
IS  - 9
DO  - 10.3844/ajassp.2013.1018.1024
UR  - https://thescipub.com/abstract/ajassp.2013.1018.1024
AB  - The word mismatch problem is fundamental to Information retrieval. Query expansion process helps to overcome this problem. Based on the Arabic corpuses, the comparisons between two query expansion techniques (global and local query) have been conducted to determine the query effectiveness. First one represents the local context analysis which represents a local method, while a global method was the second technique that has been represented by the Association and similarity thesauruses. These techniques can be used in any special field or domain to improve the expansion process and to get more relevant documents for the user’s query. This study introduces a comparison between these approaches and shows their effectiveness. Although, local context analysis has some advantages over the similarity thesaurus, Association thesaurus which is global is generally the most effective one.