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Research Paper | Computer Science & Engineering | India | Volume 5 Issue 3, March 2016
An Algorithm of Word Indexing Model for Document Summarization based on Perspective of Document
Meha Shah | Chetna Chand 
Abstract: Natural language processing (NLP) is an area of computer science, artificial intelligence, and computational linguistics connected with the communications between computers and natural languages. There are many challenges in NLP involve natural language understanding, that is, enabling computers to derive meaning from human or natural language input, and others involve natural language generation. Document summarization is a part of it. Many different classes of such process based on machine learning are developed. In researches earlier document summarization mostly use the similarity between sentences in the document to extract the most significant sentences. The documents as well as the sentences are indexed using traditional term indexing measures, which do not take the context into consideration. Therefore, the sentence similarity values remain independent of the context. In this paper, we propose a context sensitive document indexing model based on the Bernoulli model of randomness. The Bernoulli model of randomness has been used to find the probability of the co-occurrences of two terms in a large corpus. A new approach using the lexical association between terms to give a context sensitive weight to the document terms has been proposed. The resulting indexing weights are used to compute the sentence similarity matrix. The proposed sentence similarity measure has been used with the baseline graph-based ranking models for sentence extraction. Experiments have been conducted over the benchmark DUC data sets and it has been shown that the proposed Bernoulli-based sentence similarity model provides consistent improvements over the baseline Intra Link and Uniform Link methods.
Keywords: Data mining, Document Summarization, Text mining, Stemming, Sentence Similarity, Context Similarity
Edition: Volume 5 Issue 3, March 2016,
Pages: 1687 - 1690
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