Vector Space Basis Change in Information Retrieval



Título del documento: Vector Space Basis Change in Information Retrieval
Revue: Computación y sistemas
Base de datos: PERIÓDICA
Número de sistema: 000379434
ISSN: 1405-5546
Autores: 1
1
2
Instituciones: 1University of Sfax, High Institute of Computer Science and Multimedia, Sfax. Túnez
2Umm Al-Qura University, La Meca. Arabia Saudita
Año:
Periodo: Jul-Sep
Volumen: 18
Número: 3
Paginación: 569-579
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés The Vector Space Basis Change (VSBC) is an algebraic operator responsible for change of basis and it is parameterized by a transition matrix. If we change the vector space basis, then each vector component changes depending on this matrix. The strategy of VSBC has been shown to be effective in separating relevant documents and irrelevant ones. Recently, using this strategy, some feedback algorithms have been developed. To build a transition matrix some optimization methods have been used. In this paper, we propose to use a simple, convenient and direct method to build a transition matrix. Based on this method we develop a relevance feedback algorithm. Experimental results on a TREC collection show that our proposed method is effective and generally superior to known VSBC-based models. We also show that our proposed method gives a statistically significant improvement over these models
Disciplinas: Ciencias de la computación,
Literatura y lingüística
Palabras clave: Inteligencia artificial,
Lingüística aplicada,
Minería de datos,
Modelo espacial de vectores,
Recuperación de información,
Operadores algebraicos
Keyword: Computer science,
Literature and linguistics,
Artificial intelligence,
Applied linguistics,
Data mining,
Vector space model,
Information retrieval,
Algebraic operators
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