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Authors: Tareq Jaber 1 ; Abbes Amira 2 and Peter Milligan 3

Affiliations: 1 King Abdulaziz University, Saudi Arabia ; 2 University of Ulster, United Kingdom ; 3 Queen’s University Belfast, United Kingdom

Keyword(s): Latent semantic indexing, Information retrieval, Haar wavelet transform, Singular value decomposition.

Related Ontology Subjects/Areas/Topics: Digital Signal Processing ; Image and Multidimensional Signal Processing ; Telecommunications ; Wavelet Signal Processing

Abstract: Latent semantic indexing (LSI) is commonly used to match queries to documents in information retrieval (IR) applications. It has been shown to improve the retrieval performance, as it can deal with synonymy and polysemy problems. This paper proposes a hybrid approach which can improve result accuracy significantly. Evaluation of the approach based on using the Haar wavelet transform (HWT) as a preprocessing step for the singular value decomposition (SVD) in the LSI system is presented, using Donoho′s thresholding with the transformation in HWT. Furthermore, the effect of different levels of decomposition in the HWT process is investigated. The experimental results presented in the paper confirm a significant improvement in performance by applying the HWT as a preprocessing step using Donoho′s thresholding.

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Paper citation in several formats:
Jaber, T.; Amira, A. and Milligan, P. (2011). LATENT SEMANTIC INDEXING USING MULTIRESOLUTION ANALYSIS. In Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS; ISBN 978-989-8425-48-5; ISSN 2184-2817, SciTePress, pages 327-332. DOI: 10.5220/0003313203270332

@conference{peccs11,
author={Tareq Jaber. and Abbes Amira. and Peter Milligan.},
title={LATENT SEMANTIC INDEXING USING MULTIRESOLUTION ANALYSIS},
booktitle={Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS},
year={2011},
pages={327-332},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003313203270332},
isbn={978-989-8425-48-5},
issn={2184-2817},
}

TY - CONF

JO - Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS
TI - LATENT SEMANTIC INDEXING USING MULTIRESOLUTION ANALYSIS
SN - 978-989-8425-48-5
IS - 2184-2817
AU - Jaber, T.
AU - Amira, A.
AU - Milligan, P.
PY - 2011
SP - 327
EP - 332
DO - 10.5220/0003313203270332
PB - SciTePress