<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-5546</journal-id>
<journal-title><![CDATA[Computación y Sistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Comp. y Sist.]]></abbrev-journal-title>
<issn>1405-5546</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Centro de Investigación en Computación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-55462023000200389</article-id>
<article-id pub-id-type="doi">10.13053/cys-27-2-4397</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Aspect-Based Sentiment Words and Their Polarities Using Chi-Square Test]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bhagat]]></surname>
<given-names><![CDATA[Pradnya]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Korkankar]]></surname>
<given-names><![CDATA[Pratik D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pawar]]></surname>
<given-names><![CDATA[Jyoti D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Goa University Goa Business School ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>India</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Dnyanprassarak Mandal&#8217;s, College and Research Centre  ]]></institution>
<addr-line><![CDATA[Goa ]]></addr-line>
<country>India</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>27</volume>
<numero>2</numero>
<fpage>389</fpage>
<lpage>399</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462023000200389&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462023000200389&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462023000200389&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Most of the user-preferred products on e-commerce websites are accompanied by a massive number of product reviews and manually analyzing each review to understand the features and the user opinions associated with the products is an inconceivable task. A single domain of products can contain thousands of different products and an equally significant number of associated product features/aspects, thereby making the polarity of the sentiment words in the product reviews vary widely according to the aspect with which they are associated. The paper uses the Chi-square Test statistical measure to automatically calculate the aspect-based polarity of sentiment words in a given domain. The results of the method are tested on two different domains. The experimental results show that the method delivers an accuracy of more than 75% in both domains. The method also helps in discovering strong domain-specific polar adjectives that might be missing in universal sentiment lexicons.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Aspect/feature words]]></kwd>
<kwd lng="en"><![CDATA[sentiment words]]></kwd>
<kwd lng="en"><![CDATA[polar words]]></kwd>
<kwd lng="en"><![CDATA[universal sentiment lexicon]]></kwd>
<kwd lng="en"><![CDATA[chi-square test]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhagat]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Pawar]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[A comparative study of feature extraction methods from user reviews for recommender systems]]></source>
<year>2018</year>
<conf-name><![CDATA[ ACM India joint international conference on data science and management of data]]></conf-name>
<conf-loc> </conf-loc>
<page-range>325-8</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhagat]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Pawar]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[A two-phase approach using LDA for effective domain-specific tweets conveying sentiments]]></source>
<year>2021</year>
<conf-name><![CDATA[ 7th International Conference on Advanced Computing, Networking, and Informatics (ICACNI]]></conf-name>
<conf-date>2019</conf-date>
<conf-loc> </conf-loc>
<page-range>79-86</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blei]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ng]]></surname>
<given-names><![CDATA[A. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Jordan]]></surname>
<given-names><![CDATA[M. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Latent dirichlet allocation]]></article-title>
<source><![CDATA[Journal of machine Learning research]]></source>
<year>2003</year>
<volume>3</volume>
<page-range>993-1022</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cohen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Introduces kappa as a way of calculating inter rater agreement between two raters]]></article-title>
<source><![CDATA[Educational and Psychological Measurement]]></source>
<year>1960</year>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cruz]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Gelbukh]]></surname>
<given-names><![CDATA[A. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Sidorov]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Implicit aspect indicator extraction for aspect based opinion mining]]></article-title>
<source><![CDATA[International Journal of Computational Linguistics and Applications]]></source>
<year>2014</year>
<volume>5</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>135-52</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[O&#8217;Mahony]]></surname>
<given-names><![CDATA[M. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Schaal]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[McCarthy]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Smyth]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sentimental product recommendation]]></source>
<year>2013</year>
<conf-name><![CDATA[ 7th ACM Conference on Recommender Systems]]></conf-name>
<conf-loc> </conf-loc>
<page-range>411-4</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[O&#8217;Mahony]]></surname>
<given-names><![CDATA[M. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Schaal]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[McCarthy]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Smyth]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combining similarity and sentiment in opinion mining for product recommendation]]></article-title>
<source><![CDATA[Journal of Intelligent Information Systems]]></source>
<year>2016</year>
<volume>46</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>285-312</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Schaal]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[O&#8217;Mahony]]></surname>
<given-names><![CDATA[M. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Smyth]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Topic extraction from online reviews for classification and recommendation]]></source>
<year>2013</year>
<conf-name><![CDATA[ Twenty-Third International Joint Conference on Artificial Intelligence (IJCAI 13)]]></conf-name>
<conf-loc> </conf-loc>
<page-range>1310-6</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Schaal]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[O&#8217;Mahony]]></surname>
<given-names><![CDATA[M. P.]]></given-names>
</name>
<name>
<surname><![CDATA[McCarthy]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Smyth]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Opinionated product recommendation]]></source>
<year>2013</year>
<volume>7969</volume>
<conf-name><![CDATA[ 21st International Conference, ICCBR]]></conf-name>
<conf-date>2013</conf-date>
<conf-loc> </conf-loc>
<page-range>44-58</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[McAuley]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ups and downs: Modeling the visual evolution of fashion trends with one-class collaborative filtering]]></source>
<year>2016</year>
<conf-name><![CDATA[ 25th International Conference on World Wide Web]]></conf-name>
<conf-loc> </conf-loc>
<page-range>507-17</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mining and summarizing customer reviews]]></source>
<year>2004</year>
<conf-name><![CDATA[ tenth ACM SIGKDD International Conference on Knowledge discovery and data mining]]></conf-name>
<conf-loc> </conf-loc>
<page-range>168-77</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leung]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Chung]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Ngai]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A probabilistic rating inference framework for mining user preferences from reviews]]></article-title>
<source><![CDATA[World Wide Web]]></source>
<year>2011</year>
<volume>14</volume>
<page-range>187-215</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sentiment analysis and opinion mining]]></article-title>
<source><![CDATA[Synthesis Lectures on Human Language Technologies]]></source>
<year>2012</year>
<volume>1</volume>
<page-range>1-167</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Opinion observer: Analyzing and comparing opinions on the web]]></source>
<year>2005</year>
<conf-name><![CDATA[ 14th International Conference on World Wide Web]]></conf-name>
<conf-loc> </conf-loc>
<page-range>342-51</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Loper]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bird]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Nltk: The natural language toolkit]]></source>
<year>2002</year>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Smyth]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Context-aware sentiment detection from ratings]]></source>
<year>2016</year>
<conf-name><![CDATA[ International Conference on Innovative Techniques and Applications of Artificial Intelligence]]></conf-name>
<conf-loc> </conf-loc>
<page-range>87-101</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maslowska]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Malthouse]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernritter]]></surname>
<given-names><![CDATA[S. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of online customer reviews&#8217; characteristics on sales]]></article-title>
<source><![CDATA[Advances in Advertising Research]]></source>
<year>2017</year>
<page-range>87-100</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McAuley]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Targett]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Van Den Hengel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Image-based recommendations on styles and substitutes]]></source>
<year>2015</year>
<conf-name><![CDATA[ 38th International ACM SIGIR Conference on Research and Development in Information Retrieval]]></conf-name>
<conf-loc> </conf-loc>
<page-range>43-52</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Medhat]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Hassan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Korashy]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sentiment analysis algorithms and applications: A survey]]></article-title>
<source><![CDATA[Ain Shams Engineering Journal]]></source>
<year>2014</year>
<volume>5</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1093-113</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mejova]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sentiment analysis: An overview]]></source>
<year>2009</year>
<publisher-name><![CDATA[Computer Science Department]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sanner]]></surname>
<given-names><![CDATA[M. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Python: A programming language for software integration and development]]></article-title>
<source><![CDATA[J Mol Graph Model]]></source>
<year>1999</year>
<volume>17</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>57-61</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sharma]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhattacharyya]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Detecting domain dedicated polar words]]></source>
<year>2013</year>
<conf-name><![CDATA[ Sixth International Joint Conference on Natural Language Processing]]></conf-name>
<conf-loc> </conf-loc>
<page-range>661-6</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tallarida]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Murray]]></surname>
<given-names><![CDATA[R. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chi-square test]]></article-title>
<source><![CDATA[Manual of Pharmacologic Calculations]]></source>
<year>1987</year>
<page-range>140-2</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Marcus]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Santorini]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[The penn treebank: An overview. Treebanks: Building and using parsed corpora]]></source>
<year>2003</year>
<page-range>5-22</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Toutanova]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Klein]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Manning]]></surname>
<given-names><![CDATA[C. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Singer]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Feature-rich part-of-speech tagging with a cyclic dependency network]]></source>
<year>2003</year>
<volume>1</volume>
<conf-name><![CDATA[ Human Language Technology Conference of the North American Chapter of the Association for Computational Linguistics]]></conf-name>
<conf-date>2003</conf-date>
<conf-loc> </conf-loc>
<page-range>252-9</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wallach]]></surname>
<given-names><![CDATA[H. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Conditional random fields: An introduction]]></source>
<year>2004</year>
<page-range>22</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Watson]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The impact of online reviews on the information flows and outcomes of marketing systems]]></article-title>
<source><![CDATA[Journal of Macromarketing]]></source>
<year>2022</year>
<volume>42</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>146-64</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
