<?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>S1405-55462022000301107</article-id>
<article-id pub-id-type="doi">10.13053/cys-26-3-4042</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A Product Review Writing Recommender System based on LDA and TF-IDF]]></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[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>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>26</volume>
<numero>3</numero>
<fpage>1107</fpage>
<lpage>1117</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462022000301107&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462022000301107&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462022000301107&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Twitter is a micro-blogging platform where people broadcast their views and opinions to fellow users in crisp messages called Tweets. However, the platform&#8217;s format of restricted character limit makes it challenging for many users to express their views exhaustively. The paper proposes a recommender system to help in writing effective product review Tweets within the restricted character limit of Twitter. The approach is divided into two phases where, the first phase uses the Latent Dirichlet Allocation (LDA) algorithm to find pivotal features from the training corpus and suggests them to the users while writing new Tweets. In the second phase, the approach suggests the most appropriate opinion words to describe the respective features by using an method based on the occurrence frequency of opinion words and TF-IDF. The evaluation results show significant improvement in the quality of product review Tweets. The percentage of good reviews corresponding to a parameter such as correct usage of feature words is found to be 17.85% higher, whereas an improvement of 23.22% is reported with regard to the correct use of opinion words using the generated recommendations.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Recommender systems]]></kwd>
<kwd lng="en"><![CDATA[product review tweets]]></kwd>
<kwd lng="en"><![CDATA[feature words]]></kwd>
<kwd lng="en"><![CDATA[topics]]></kwd>
<kwd lng="en"><![CDATA[opinion polarity]]></kwd>
<kwd lng="en"><![CDATA[opinion intensity]]></kwd>
<kwd lng="en"><![CDATA[latent dirichlet allocation]]></kwd>
<kwd lng="en"><![CDATA[term frequency]]></kwd>
<kwd lng="en"><![CDATA[inverse document frequency]]></kwd>
</kwd-group>
</article-meta>
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