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      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Buenos Aires</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Argentina</string-name>
        </contrib>
      </contrib-group>
      <pub-date>
        <year>2015</year>
      </pub-date>
      <abstract>
        <p>International Workshop “What can FCA do for Artificial Intelligence?” FCA4AI International Joint Conference on Artificial Intelligence</p>
      </abstract>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>-</title>
      <p>IJCAI 2015</p>
      <p>Preface</p>
      <p>The three preceding editions of the FCA4AI Workshop showed that many researchers
working in Artificial Intelligence are deeply interested by a well-founded method for
classification and mining such as Formal Concept Analysis (see http://www.fca4ai.hse.ru/).
The first edition of FCA4AI was co-located with ECAI 2012 in Montpellier and published
as http://ceur-ws.org/Vol-939/, the second edition was co-located with IJCAI 2013 in
Beijing and published as http://ceur-ws.org/Vol-1058/, and finally the third edition was
co-located with ECAI 2014 in Prague and published as http://ceur-ws.org/Vol-1257/.
Based on that, we decided to continue the series and we took the chance to organize a new
edition of the workshop in Buenos Aires at the IJCAI 2015 Conference. This year, the
workshop has again attracted many different researchers working on actual and important topics,
e.g. recommendation, linked data, classification, biclustering, pattern mining, ontology
design, and various applications. This shows the diversity and the richness of the relations
between FCA and AI. Moreover, this is a good sign for the future and especially for young
researchers that are at the moment working in this area or who will do.</p>
      <p>Formal Concept Analysis (FCA) is a mathematically well-founded theory aimed at data
analysis and classification. FCA allows one to build a concept lattice and a system of
dependencies (implications) which can be used for many AI needs, e.g. knowledge discovery,
learning, knowledge representation, reasoning, ontology engineering, as well as information
retrieval and text processing. As we can see, there are many “natural links” between FCA
and AI.</p>
      <p>Recent years have been witnessing increased scientific activity around FCA, in particular
a strand of work emerged that is aimed at extending the possibilities of FCA w.r.t.
knowledge processing, such as work on pattern structures and relational context analysis. These
extensions are aimed at allowing FCA to deal with more complex than just binary data,
both from the data analysis and knowledge discovery points of view and as well from the
knowledge representation point of view, including, e.g., ontology engineering.</p>
      <p>All these investigations provide new possibilities for AI activities in the framework of
FCA. Accordingly, in this workshop, we are interested in two main issues:
How can FCA support AI activities such as knowledge processing (knowledge
discovery, knowledge representation and reasoning), learning (clustering, pattern and data
mining), natural language processing, and information retrieval.</p>
      <p>How can FCA be extended in order to help AI researchers to solve new and complex
problems in their domains.</p>
      <p>The workshop is dedicated to discuss such issues. This year, the papers submitted to the
workshop were carefully peer-reviewed by three members of the program committee and 10
papers with the highest scores were selected. We thank all the PC members for their reviews
and all the authors for their contributions.</p>
    </sec>
    <sec id="sec-2">
      <title>The Workshop Chairs</title>
      <p>Sergei O. Kuznetsov
National Research University, Higher Schools of Economics, Moscow, Russia
Amedeo Napoli
LORIA (CNRS – Inria Nancy Grand Est – Université de Lorraine), Vandoeuvre les Nancy,
France
Sebastian Rudolph
Technische Universität Dresden, Germany
Program Committee</p>
    </sec>
    <sec id="sec-3">
      <title>Mathieu D’Aquin (Open University, UK)</title>
      <p>Gabriela Arevalo (Universidad Nacional de Quilmes, Argentina)
Jaume Baixeries, UPC Barcelona, Catalunya
Karell Bertet (Université de La Rochelle, France, Germany)
Claudio Carpineto (Fondazione Ugo Bordoni, Roma, Italy)
Florent Domenach (University of Nicosia, Cyprus)
Sébastien Ferré (IRISA, Rennes, France)
Marianne Huchard (LIRMM/Université de Montpellier, France)
Dmitry I. Ignatov (NRU Higher School of Economics, Moscow, Russia)
Mehdi Kaytoue (INSA-LIRIS Lyon, France)
Florence Le Ber, Université de Strasbourg, France
Nizar Messai (Université de Tours, France)
Rokia Missaoui (Université du Québec en Outaouais, Ottawa, Canada)
Sergei A. Obiedkov (NRU Higher School of Economics, Moscow, Russia)
Jean-Marc Petit (INSA-LIRIS Lyon, France)
Uta Priss (Ostfalia University of Applied Sciences, Wolfenbüttel, Germany)
Chedy Raïssi (Inria/LORIA Nancy, France)
Artem Revenko, Technische Universität Dresden, Germany
Christian Sacarea (Babes-Bolyai University, Cluj-Napoca, Romania)
Baris Sertkaya (SAP Dresden, Germany)
Henry Soldano (Université de Paris-Nord, France)
Laszlo Szathmary, University of Debrecen, Hungary
Petko Valtchev (Université du Québec à Montréal, Montréal, Canada)
Renato Vimiero (UFPE Recife, Brazil)
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10
7</p>
      <p>Invited Talk</p>
      <sec id="sec-3-1">
        <title>Using Trust Networks to Improve Data Quality and Recommendations</title>
        <p>Hernán Astudillo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .</p>
      </sec>
      <sec id="sec-3-2">
        <title>Bridging DBpedia Categories and DL-Concept Definitions Using Formal Concept</title>
      </sec>
      <sec id="sec-3-3">
        <title>Analysis</title>
        <p>Mehwish Alam, Aleksey Buzmakov, Victor Codocedo and Amedeo Napoli . . . . . . .
7
9</p>
      </sec>
      <sec id="sec-3-4">
        <title>A Conceptual-KDD tOol for Ontology Construction from a Database Schema</title>
        <p>Renzo Stanley and Hernán Astudillo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17</p>
      </sec>
      <sec id="sec-3-5">
        <title>SOFIA: How to Make FCA Polynomial?</title>
        <p>Aleksey Buzmakov, Sergei O. Kuznetsov and Amedeo Napoli . . . . . . . . . . . . . . 27</p>
      </sec>
      <sec id="sec-3-6">
        <title>Pattern Structures for News Clustering</title>
        <p>Tatyana Makhalova, Dmitry Ilvovsky and Boris Galitsky . . . . . . . . . . . . . . . . . 35</p>
      </sec>
      <sec id="sec-3-7">
        <title>Lazy Classication with Interval Pattern Structures: Application to Credit Scoring</title>
        <p>Alexey Masyutin, Yury Kashnitsky and Sergei O. Kuznetsov . . . . . . . . . . . . . . 43</p>
      </sec>
      <sec id="sec-3-8">
        <title>Reduction in Triadic Data Sets</title>
        <p>Sebastian Rudolph, Christian Sacarea and Diana Troanca . . . . . . . . . . . . . . . . 55</p>
      </sec>
      <sec id="sec-3-9">
        <title>Lazy Associative Graph Classification</title>
        <p>Yury Kashnitsky and Sergei O. Kuznetsov . . . . . . . . . . . . . . . . . . . . . . . . . 63</p>
      </sec>
      <sec id="sec-3-10">
        <title>Machine-assisted Cyber Threat Analysis Using Conceptual Knowledge Discovery</title>
        <p>Martín Barrère, Gustavo Betarte, Víctor Codocedo, Marcelo Rodríguez, Hernán
Astudillo, Marcelo Aliquintuy, Javier Baliosian, Carlos Raniery Paula Dos Santos,
Jéferson Campos Nobre, Lisandro Zambenedetti Granville and Amedeo Napoli . . . . . . . 75</p>
      </sec>
      <sec id="sec-3-11">
        <title>RAPS: A Recommender Algorithm Based on Pattern Structures</title>
        <p>Dmitry Ignatov and Denis Kornilov . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87</p>
      </sec>
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