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A web search engine based approach to measure semantic similarity between words
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A web search engine based approach to measure semantic similarity between words

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A web search engine based approach to measure semantic similarity between words A web search engine based approach to measure semantic similarity between words Document Transcript

  • A Web Search Engine-Based Approach toMeasure Semantic Similarity between WordsABSTRACTMeasuring the semantic similarity between words is an important component in varioustasks on the web such as relation extraction, community mining, document clustering,and automatic metadata extraction. Despite the usefulness of semantic similaritymeasures in these applications, accurately measuring semantic similarity between twowords (or entities) remains a challenging task. We propose an empirical method toestimate semantic similarity using page counts and text snippets retrieved from a websearch engine for two words. Specifically, we define various word co-occurrencemeasures using page counts and integrate those with lexical patterns extracted from textsnippets. To identify the numerous semantic relations that exist between two givenwords, we propose a novel pattern extraction algorithm and a pattern clusteringalgorithm. The optimal combination of page counts-based co-occurrence measures andlexical pattern clusters is learned using support vector machines. The proposed methodoutperforms various baselines and previously proposed web-based semantic similaritymeasures on three benchmark data sets showing a high correlation with human ratings.Moreover, the proposed method significantly improves the accuracy in a communitymining task.EXISTING WORK:• Accurately measuring the semantic similarity between words is an importantproblem in web mining, information retrieval, and natural language processing.Web mining applications such as, community extraction, relation detection, andwww.nanocdac.com www.nsrcnano.com branches: hyderabad nagpur
  • entity disambiguation, require the ability to accurately measure the semanticsimilarity between concepts or entities.• In information retrieval, one of the main problems is to retrieve a set ofdocuments that is semantically related to a given user query.• Efficient estimation of semantic similarity between words is critical for variousnatural language processing tasks such as word sense disambiguation (WSD),textual entailment, and automatic text summarization.• For example, apple is frequently associated with computers on the web. However,this sense of apple is not listed in most general-purpose thesauri or dictionaries.PROPOSED WORK:• We propose an automatic method to estimate the semantic similarity betweenwords or entities using web search engines.• Web search engines provide an efficient interface to this vast information. Pagecounts and snippets are two useful information sources provided by most websearch engines.• Page count of a query is an estimate of the number of pages that contain the querywords. In general, page count may not necessarily be equal to the word frequencybecause the queried word might appear many times on one page.www.nanocdac.com www.nsrcnano.com branches: hyderabad nagpur
  • • We present an automatically extracted lexical syntactic patterns-based approachto compute the semantic similarity between words or entities using text snippetsretrieved from a web search engine.HARDWARE REQUIREMENTSPROCESSOR : PENTIUM 4 CPU 2.40GHZRAM : 128 MBHARD DISK : 40 GBKEYBOARD : STANDARDMONITOR : 15”SOFTWARE REQUIREMENTSFRONT END : C#.NETOPERATING SYSTEM : WINDOWS XPDOCUMENTATION : MS-OFFICE 2007REFERENCE:www.nanocdac.com www.nsrcnano.com branches: hyderabad nagpur
  • Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka, “A Web Search Eninge-Based Approach to Measure Semantic Similarity between Words”, IEEE Transactionson Knowledge and Data Engineering, Vol.23, 2011.www.nanocdac.com www.nsrcnano.com branches: hyderabad nagpur