TY  - JOUR
T1  - Algoritmos de Expansión de Consulta basados en una Nueva Función Discreta de Relevancia
JO  - Revista UIS Ingenierías
VL  - 10
IS  - 1
SP  - 9
EP  - 22
PY  - 2011/6/1/
AU  - Cobos, Carlos
AU  - Estevez, Eduardo
AU  - Mendoza, Martha
AU  - Gomez, Luis
AU  - Leon, Elizabteh
SN  - 1657-4583
M3  - 
UR  - http://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/2687
KW  - Expansión de consulta
KW  - Rocchio
KW  - Término relevante
KW  - IDF
KW  - Frecuencia invertida de documento
AB  - 
It has been shown that the query expansion process in the vector space model of document’s representation in a retrieval system, it is a useful technique for improving the relevance measured by precision of the results delivered to users. This paper presents a new algorithm and a variation of itself used to perform query expansion in information retrieval systems. These algorithms are based on a new discrete function that defines the relative importance of a term in a document collection. The algorithm and its variation were evaluated against the cosine similarity search and the query expansion algorithm proposed by Rocchio, with excellent results on data collection CACM (articles published in the Communications of the ACM journal)
ER  -