LANGUAGE IN INDIA

Strength for Today and Bright Hope for Tomorrow

Volume 12 : 11 November 2012
ISSN 1930-2940

Managing Editor: M. S. Thirumalai, Ph.D.
Editors: B. Mallikarjun, Ph.D.
         Sam Mohanlal, Ph.D.
         B. A. Sharada, Ph.D.
         A. R. Fatihi, Ph.D.
         Lakhan Gusain, Ph.D.
         Jennifer Marie Bayer, Ph.D.
         S. M. Ravichandran, Ph.D.
         G. Baskaran, Ph.D.
         L. Ramamoorthy, Ph.D.
Assistant Managing Editor: Swarna Thirumalai, M.A.

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Query Optimization:
A Solution for Low Recall Problem in Hindi Language Information Retrieval

Kumar Sourabh
Vibhakar Mansotra

Abstract

While information retrieval (IR) has been an active field of research for decades, for much of its history it has had a very strong bias towards English as the language of choice for research and evaluation purposes. Whatever they may have been, over the years, many of the motivations for an almost exclusive focus on English as the language of choice in IR have lost their validity. The Internet is no longer monolingual, as the non- English content is growing rapidly. Hindi is the third most widely spoken language in the world (after English and Mandarin): an estimated 500-600 million people speak this language. Information Retrieval in Hindi language is getting popularity and IR systems face low recall if existing systems are used as-is. Certain characteristics of Indian languages cause the existing algorithms to become unable to match relevant keywords in the documents for retrieval. Some of the major characteristics that affect Indian language IR are due to language morphology, compound word formations, word spelling variations, ambiguity, word synonym, foreign language influence, and lack of standards for spelling words. Taking into consideration the aforesaid issues we introduce Hindi Query Optimization technique (design and development) which solved the problem of recall up to a great extent.

Keywords: Information retrieval, Hindi, Monolingual, Query optimization, Interface, Hindi WordNet.

1. Introduction

The World Wide Web, or simply the web may be seen as a huge collection of documents freely produced and published by a very large number of people, without any solid editorial control. This is probably the most democratic – and anarchic –widespread means for anyone to express feelings, comments, convictions and ideas, independently of ethnics, sex, religion or any other characteristic of human societies. The web constitutes a comprehensive, dynamic, up-to-date repository of information regarding most of the areas of human knowledge; and, it supports an increasingly important part of commercial, artistic, scientific and personal transactions, which gives rise to a very strong interest from individuals, as well as from institutions, at a universal scale. However, the web also exhibits some characteristics that are adverse to the process of collecting information from it in order to satisfy specific needs; some of the characteristics are: the large volume of data it contains, its dynamic nature, constituted by unstructured or semi-structured data, content and format heterogeneity and irregular data quality. End-users also introduce some additional difficulties in the retrieval process. Information needs are often imprecisely defined, generating a semantic gap between user needs and their specifications. The satisfaction of a specific information need on the web is supported by search engines and other tools, aimed at helping users to gather information from the web.

This is only the beginning part of the article. PLEASE CLICK HERE TO READ THE ARTICLE IN PRINTER-FRIENDLY VERSION.

Kumar Sourabh
Department of Computer Science and IT
University of Jammu
J&K 180001 INDIA
Kumar9211.sourabh@gmail.com

Vibhakar Mansotra
Department of Computer Science and IT
University of Jammu
J&K 180001 INDIA
Vibhakar20@yahoo.co.in
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