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			</style>[an error occurred while processing this directive]<div class="content-width"><ol class="breadcrumb text-uppercase"><li><a href="/">Home</a></li><li><a href="/research/">Research</a></li><li><a href="/research/ai_ml/">Artificial Intelligence and Machine Learning</a></li><li><a href="/research/ai_ml/projects.html">projects</a></li><li><a href="/projects/PSSW/">Personalized Search on the Social Web</a></li><li class="active">Publications</li></ol></div><!-- MOBILE NAVIGATION --><div class="content-width space-below mobile-menu-placeholder visible-xs visible-sm"></div><!-- COLUMNS --><div class="container-fluid content-width"><div class="row"><div class="col-xs-12 col-md-9 col-md-push-3" id="maincontent"><!-- CONTENT (Column 2) --><div class="page-title"><h1>Personalized Search on the Social Web: Publications
</h1></div><div role="toolbar" class="btn-toolbar"><div class="btn-group"><a href="/projects/publications/date/PSSW.html" aria-hidden="true" type="button" class="btn btn-oxford-blue"><span class="glyphicon glyphicon-sort-by-attributes"></span> By date</a><a href="/projects/publications/title/PSSW.html" aria-hidden="true" type="button" class="btn btn-default"><span class="glyphicon glyphicon-sort-by-attributes"></span> By title</a><a href="/projects/publications/type/PSSW.html" aria-hidden="true" type="button" class="btn btn-default"><span class="glyphicon glyphicon-sort-by-attributes"></span> By type</a><a href="/projects/publications/bibtex/PSSW.html" aria-hidden="true" type="button" class="btn btn-default"><span class="glyphicon glyphicon-file"></span> BibTex</a></div></div><ul class="list-unbulleted list-unbulleted-spaced"><li>
	
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	<p class="publicationTitle"> <strong>
            Query Answering in Ontologies Under Preference Rankings </strong> </p>
	    <p class="publicationAuthors"> <em> &#x0130;smail &#x0130;lkan Ceylan&#x201a; Thomas Lukasiewicz&#x201a; Rafael Pe&#xf1;aloza and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Carles Sierra, editor,
             
            <em>
            Proceedings of the 26th International Joint Conference on Artificial Intelligence&#x201a; IJCAI 2017&#x201a; Melbourne&#x201a; Australia&#x201a; August 19&#x2212;25&#x201a; 2017</em>.
        
                Pages 943&#x2013;949.
            IJCAI/AAAI Press.
        August,
            2017.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication10959-abstract.html">
			Details <span class="sr-only" > about <em> Query Answering in Ontologies Under Preference Rankings  </em></span> </a> |
			<a href="/publications/publication10959.bib">
			BibTeX  <span class="sr-only" > data for <em> Query Answering in Ontologies Under Preference Rankings  </em></span>   </a>
			
			
					| <a href="https://www.ijcai.org/proceedings/2017/0131.pdf"> Download (pdf)  <span class="sr-only" > of <em> Query Answering in Ontologies Under Preference Rankings  </em></span>   </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Preferential Query Answering over the Semantic Web with Possibilistic Networks </strong> </p>
	    <p class="publicationAuthors"> <em> Stefan Borgwardt&#x201a; Bettina Fazzinga&#x201a; Thomas Lukasiewicz&#x201a; Akanksha Shrivastava and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Subbarao Kambhampati, editor,
             
            <em>
            Proceedings of the 25th International Joint Conference on Artificial Intelligence&#x201a; IJCAI 2016&#x201a; New York&#x201a; NY&#x201a; USA&#x201a; July 9&#x2212;15&#x201a; 2016</em>.
        
                Pages 994&#x2212;1000.
            IJCAI/AAAI Press.
        July,
            2016.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication10411-abstract.html">
			Details <span class="sr-only" > about <em> Preferential Query Answering over the Semantic Web with Possibilistic Networks  </em></span> </a> |
			<a href="/publications/publication10411.bib">
			BibTeX  <span class="sr-only" > data for <em> Preferential Query Answering over the Semantic Web with Possibilistic Networks  </em></span>   </a>
			
			
					| <a href="http://www.ijcai.org/Abstract/16/145"> Link <span class="sr-only" > to <em> Preferential Query Answering over the Semantic Web with Possibilistic Networks  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Combining Existential Rules with the Power of CP&#x2212;Theories </strong> </p>
	    <p class="publicationAuthors"> <em> Tommaso Di Noia&#x201a; Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Qiang Yang, editor,
             
            <em>
            Proceedings of the 24th International Joint Conference on Artificial Intelligence&#x201a; IJCAI 2015&#x201a; Buenos Aires&#x201a; Argentina&#x201a; July 25&#x2212;31&#x201a; 2015</em>.
        
                Pages 2918&#x2212;2925.
            AAAI Press / International Joint Conferences on Artificial Intelligence.
        July,
            2015.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication9473-abstract.html">
			Details <span class="sr-only" > about <em> Combining Existential Rules with the Power of CP&#x2212;Theories  </em></span> </a> |
			<a href="/publications/publication9473.bib">
			BibTeX  <span class="sr-only" > data for <em> Combining Existential Rules with the Power of CP&#x2212;Theories  </em></span>   </a>
			
			
					| <a href="http://ijcai.org/Abstract/15/413"> Link <span class="sr-only" > to <em> Combining Existential Rules with the Power of CP&#x2212;Theories  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Preference&#x2212;Based Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies </strong> </p>
	    <p class="publicationAuthors"> <em> Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
        In <em>Journal on Data Semantics</em>.
        
            Vol. 4.
        
            No. 2.
        
                Pages 81&#x2212;101.
            June,
            2015.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication8585-abstract.html">
			Details <span class="sr-only" > about <em> Preference&#x2212;Based Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies  </em></span> </a> |
			<a href="/publications/publication8585.bib">
			BibTeX  <span class="sr-only" > data for <em> Preference&#x2212;Based Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1007/s13740-014-0040-x"> Link <span class="sr-only" > to <em> Preference&#x2212;Based Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Ontology&#x2212;Based Query Answering with Group Preferences </strong> </p>
	    <p class="publicationAuthors"> <em> Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
        In <em>ACM Transactions on Internet Technology (TOIT)</em>.
        
            Vol. 14.
        
            No. 4.
        
                Pages 25:1&#x2212;25:24.
            December,
            2014.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication8809-abstract.html">
			Details <span class="sr-only" > about <em> Ontology&#x2212;Based Query Answering with Group Preferences  </em></span> </a> |
			<a href="/publications/publication8809.bib">
			BibTeX  <span class="sr-only" > data for <em> Ontology&#x2212;Based Query Answering with Group Preferences  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1145/2677207"> Link <span class="sr-only" > to <em> Ontology&#x2212;Based Query Answering with Group Preferences  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Ontological CP&#x2212;Nets </strong> </p>
	    <p class="publicationAuthors"> <em> Tommaso Di Noia&#x201a; Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Fernando Bobillo&#x201a; Rommel Carvalho&#x201a; Paulo C. G. Costa&#x201a; Claudia d'Amato&#x201a; Nicola Fanizzi&#x201a; Kathryn B. Laskey&#x201a; Kenneth J. Laskey&#x201a; Thomas Lukasiewicz&#x201a; Matthias Nickles and Michael Pool, editors,
             
            <em>
            Uncertainty Reasoning for the Semantic Web III&#x201a; International Workshops URSW 2011&#x2212;2013&#x201a; Held at ISWC&#x201a; Revised Selected Papers</em>.
        
            Vol. 8816
                of Lecture Notes in Computer Science.
        
                Pages 289&#x2212;308.
            Springer.
        2014.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication8902-abstract.html">
			Details <span class="sr-only" > about <em> Ontological CP&#x2212;Nets  </em></span> </a> |
			<a href="/publications/publication8902.bib">
			BibTeX  <span class="sr-only" > data for <em> Ontological CP&#x2212;Nets  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1007/978-3-319-13413-0_15"> Link <span class="sr-only" > to <em> Ontological CP&#x2212;Nets  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets </strong> </p>
	    <p class="publicationAuthors"> <em> Tommaso Di Noia&#x201a; Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Sergio Greco and Antonio Picariello, editors,
             
            <em>
            Proceedings of the 22nd Italian Symposium on Advanced Database Systems&#x201a; SEBD 2014&#x201a; Sorrento Coast&#x201a; Italy&#x201a; June 16&#x2212;18&#x201a; 2014</em>.
        2014.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication8901-abstract.html">
			Details <span class="sr-only" > about <em> Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets  </em></span> </a> |
			<a href="/publications/publication8901.bib">
			BibTeX  <span class="sr-only" > data for <em> Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets  </em></span>   </a>
			
			
		
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	<p class="publicationTitle"> <strong>
            Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets </strong> </p>
	    <p class="publicationAuthors"> <em> Tommaso Di Noia&#x201a; Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Thomas Lukasiewicz&#x201a; Rafael Pe&#xf1;aloza and Anni&#x2212;Yasmin Turhan, editors,
             
            <em>
            Proceedings of the 1st Workshop on Logics for Reasoning about Preferences&#x201a; Uncertainty&#x201a; and Vagueness&#x201a; PRUV 2014&#x201a; Vienna&#x201a; Austria&#x201a; July 23&#x2212;24&#x201a; 2014</em>.
        
            Vol. 1205
                of CEUR Workshop Proceedings.
        
                Pages 74&#x2212;87.
            CEUR&#x2212;WS.org.
        2014.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication8900-abstract.html">
			Details <span class="sr-only" > about <em> Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets  </em></span> </a> |
			<a href="/publications/publication8900.bib">
			BibTeX  <span class="sr-only" > data for <em> Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets  </em></span>   </a>
			
			
					| <a href="http://ceur-ws.org/Vol-1205/00010074.pdf"> Download (pdf)  <span class="sr-only" > of <em> Computing k&#x2212;Rank Answers with Ontological CP&#x2212;Nets  </em></span>   </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Improving Personalized Search on the Social Web Based on Similarities Between Users </strong> </p>
	    <p class="publicationAuthors"> <em> Zhenghua Xu&#x201a; Thomas Lukasiewicz and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Umberto Straccia and Andrea Cal&#xec;, editors,
             
            <em>
            Proceedings of the 8th International Conference on Scalable Uncertainty Management&#x201a; SUM 2014&#x201a; Oxford&#x201a; UK&#x201a; September 15&#x2212;17&#x201a; 2014</em>.
        
            Vol. 8720
                of Lecture Notes in Computer Science.
        
                Pages 306&#x2212;319.
            Springer.
        2014.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication8811-abstract.html">
			Details <span class="sr-only" > about <em> Improving Personalized Search on the Social Web Based on Similarities Between Users  </em></span> </a> |
			<a href="/publications/publication8811.bib">
			BibTeX  <span class="sr-only" > data for <em> Improving Personalized Search on the Social Web Based on Similarities Between Users  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1007/978-3-319-11508-5_26"> Link <span class="sr-only" > to <em> Improving Personalized Search on the Social Web Based on Similarities Between Users  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies under Group Preferences </strong> </p>
	    <p class="publicationAuthors"> <em> Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Vijay Raghavan&#x201a; Xiaolin Hu&#x201a; Churn&#x2212;Jung and Liau Jan Treur, editors,
             
            <em>
            Proceedings of the 2013 IEEE/WIC/ACM International Conferences on Web Intelligence&#x201a; WI 2013&#x201a; Atlanta&#x201a; GA&#x201a; USA&#x201a; November 17&#x2212;20&#x201a; 2013</em>.
        
                Pages 171&#x2212;178.
            IEEE Computer Society.
        2013.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication6984-abstract.html">
			Details <span class="sr-only" > about <em> Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies under Group Preferences  </em></span> </a> |
			<a href="/publications/publication6984.bib">
			BibTeX  <span class="sr-only" > data for <em> Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies under Group Preferences  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1109/WI-IAT.2013.26"> Link <span class="sr-only" > to <em> Query Answering in Probabilistic Datalog+&#x2044;&#x2212; Ontologies under Group Preferences  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Query Answering in Datalog+&#x2044;&#x2212; Ontologies under Group Preferences and Probabilistic Uncertainty </strong> </p>
	    <p class="publicationAuthors"> <em> Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In Quan Z. Sheng and Jesper Kjeldskov, editors,
             
            <em>
            Proceedings of the 2nd International Workshop on Data Management in the Social Semantic Web&#x201a; DMSSW 2013&#x201a; Aalborg&#x201a; Denmark&#x201a; July 8&#x201a; 2013</em>.
        
            Vol. 8295
                of Lecture Notes in Computer Science.
        
                Pages 192&#x2212;206.
            Springer.
        2013.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication6983-abstract.html">
			Details <span class="sr-only" > about <em> Query Answering in Datalog+&#x2044;&#x2212; Ontologies under Group Preferences and Probabilistic Uncertainty  </em></span> </a> |
			<a href="/publications/publication6983.bib">
			BibTeX  <span class="sr-only" > data for <em> Query Answering in Datalog+&#x2044;&#x2212; Ontologies under Group Preferences and Probabilistic Uncertainty  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1007/978-3-319-04244-2_18"> Link <span class="sr-only" > to <em> Query Answering in Datalog+&#x2044;&#x2212; Ontologies under Group Preferences and Probabilistic Uncertainty  </em></span> </a>
  				
		
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	<p class="publicationTitle"> <strong>
            Group Preferences for Query Answering in Datalog+&#x2044;&#x2212; Ontologies </strong> </p>
	    <p class="publicationAuthors"> <em> Thomas Lukasiewicz&#x201a; Maria Vanina Martinez&#x201a; Gerardo I. Simari and Oana Tifrea&#x2212;Marciuska  </em> </p>
	
	<p class="publicationDetails"> 
            In V. S. Subrahmanian W. Liu and J. Wijsen, editors,
             
            <em>
            Proceedings of the 7th International Conference on Scalable Uncertainty Management&#x201a; SUM 2013&#x201a; Washington DC&#x201a; USA&#x201a; September 16&#x2212;18&#x201a; 2013</em>.
        
            Vol. 8078
                of Lecture Notes in Computer Science.
        
                Pages 360&#x2212;373.
            Springer.
        2013.
        </p>
	
        		<p class="publicationlinks"> <a
        
            		href="/publications/publication6981-abstract.html">
			Details <span class="sr-only" > about <em> Group Preferences for Query Answering in Datalog+&#x2044;&#x2212; Ontologies  </em></span> </a> |
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			BibTeX  <span class="sr-only" > data for <em> Group Preferences for Query Answering in Datalog+&#x2044;&#x2212; Ontologies  </em></span>   </a>
			
			
					| <a href="http://dx.doi.org/10.1007/978-3-642-40381-1_28"> Link <span class="sr-only" > to <em> Group Preferences for Query Answering in Datalog+&#x2044;&#x2212; Ontologies  </em></span> </a>
  				
		
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