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Computing the semantic relatedness between two words or phrases is an important problem in fields such as information retrieval and natural language processing. Explicit Semantic Analysis (ESA), a state-of-the-art approach to solve the problem uses word frequency to estimate relevance. Therefore, the relevance of words with low frequency cannot always be well estimated. To improve the relevance estimate of low-frequency words and concepts, the authors apply regression to word frequency, its location in an article, and its text style to calculate the relevance. The relevance value is subsequently used to compute semantic relatedness. Empirical evaluation shows that, for low-frequency words, the authors\u2019 method achieves better estimate of semantic relatedness over ESA. Furthermore, when all words of the dataset are considered, the combination of the authors\u2019 proposed method and the conventional approach outperforms the conventional approach alone.<\/p>","DOI":"10.4018\/ijcini.2013040103","type":"journal-article","created":{"date-parts":[[2014,2,20]],"date-time":"2014-02-20T14:31:28Z","timestamp":1392906688000},"page":"30-48","source":"Crossref","is-referenced-by-count":2,"title":["Semantic Relatedness Estimation using the Layout Information of Wikipedia Articles"],"prefix":"10.4018","volume":"7","author":[{"given":"Patrick","family":"Chan","sequence":"first","affiliation":[{"name":"Osaka University, Suita, Japan"}]},{"given":"Yoshinori","family":"Hijikata","sequence":"additional","affiliation":[{"name":"Osaka University, Suita, Japan"}]},{"given":"Toshiya","family":"Kuramochi","sequence":"additional","affiliation":[{"name":"Osaka University, Suita, Japan"}]},{"given":"Shogo","family":"Nishida","sequence":"additional","affiliation":[{"name":"Osaka University, Suita, Japan"}]}],"member":"2432","reference":[{"key":"ijcini.2013040103-0","first-page":"19","article-title":"A study on similarity and relatedness using distributional and WordNet-based approaches.","volume":"09","author":"E.Agirre","year":"2009","journal-title":"Proceedings of NAACL HLT"},{"key":"ijcini.2013040103-1","doi-asserted-by":"publisher","DOI":"10.1162\/coli.2006.32.1.13"},{"key":"ijcini.2013040103-2","doi-asserted-by":"publisher","DOI":"10.1145\/503104.503110"},{"key":"ijcini.2013040103-3","unstructured":"Gabrilovich, E., & Markovitch, S. 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