• ANKITA DHAR

      Articles written in Sadhana

    • Automatic categorization of web text documents using fuzzy inference rule

      ANKITA DHAR HIMADRI MUKHERJEE NILADRI SEKHAR DASH KAUSHIK ROY

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      The digital world is flooded with a huge number of documents belonging to multifarious categories. Most of these documents are uncategorized, which is a hindrance to efficient retrieval. In the case of news texts (one of the largest and most common sources of text information), it is often observed that a text does not belong to one particular category and has contents from multiple domains. This demands a text categorization system to segregate it into its respective domains for efficient information retrieval. The main challenge lies in handlingthe overlap of vocabulary among different domains at the time of categorization, which we have tackled using an approach based on fuzzy logic. In the present work a fuzzy rule inference system is presented, which works with newly proposed statistical features for segregating documents that belong to more than one or an undefined category. The generated model was defuzzified using five different techniques for determining the category of a document and the highest accuracy of 98.63% for the Centroid method was obtained. Experimentation was alsocarried out on standard English datasets (Reuters-21578 R8 and 20 Newsgroups). We obtain better results than those of reported works, thereby pointing to the language independence of our system

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