@inproceedings{conf/ijcai/AndrewsPZ11,
  added-at = {2012-02-12T00:00:00.000+0100},
  author = {Andrews, Pierre and Pane, Juan and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/24d26b7ea2e01e369d326567bbc60974b/dblp},
  booktitle = {LDH},
  crossref = {conf/ijcai/2011ldl},
  ee = {http://dream.inf.ed.ac.uk/events/lhd-11/files/lhd11-proceedings.pdf},
  interhash = {18e57031dca8cffc1b76d1c6716b737d},
  intrahash = {4d26b7ea2e01e369d326567bbc60974b},
  keywords = {dblp},
  pages = {8-13},
  title = {Sense Induction in Folksnonomies.},
  url = {http://dblp.uni-trier.de/db/conf/ijcai/ldl2011.html#AndrewsPZ11},
  year = 2011
}

@incollection{reference/db/GiunchigliaZ09,
  added-at = {2011-11-25T00:00:00.000+0100},
  author = {Giunchiglia, Fausto and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/274871ca0debe5ca5b7bf40ea0eff8f7d/dblp},
  booktitle = {Encyclopedia of Database Systems},
  crossref = {reference/db/2009},
  editor = {Liu, Ling and Özsu, M. Tamer},
  ee = {http://dx.doi.org/10.1007/978-0-387-39940-9_1314},
  interhash = {1620ec342e464e1ae05e080ea93d1da7},
  intrahash = {74871ca0debe5ca5b7bf40ea0eff8f7d},
  isbn = {978-0-387-39940-9},
  keywords = {dblp},
  pages = {1613-1619},
  publisher = {Springer US},
  title = {Lightweight Ontologies.},
  url = {http://dblp.uni-trier.de/db/reference/db/l.html#GiunchigliaZ09},
  year = 2009
}

@inproceedings{conf/i-semantics/ZaihrayeuPVA11,
  added-at = {2011-11-20T00:00:00.000+0100},
  author = {Zaihrayeu, Ilya and Pane, Juan and del Valle, Germán Toro and Andrews, Pierre},
  biburl = {http://www.bibsonomy.org/bibtex/253f426b593a2fd0f5c67f04b6b592508/dblp},
  booktitle = {I-SEMANTICS},
  crossref = {conf/i-semantics/2011},
  editor = {Ghidini, Chiara and Ngomo, Axel-Cyrille Ngonga and Lindstaedt, Stefanie N. and Pellegrini, Tassilo},
  ee = {http://doi.acm.org/10.1145/2063518.2063544},
  interhash = {9a4756cdc2d62443ac503692a47767d5},
  intrahash = {53f426b593a2fd0f5c67f04b6b592508},
  isbn = {978-1-4503-0621-8},
  keywords = {dblp},
  pages = {179-182},
  publisher = {ACM},
  series = {ACM International Conference Proceeding Series},
  title = {Adopting semantic annotation systems for corporate portal management: a Telefonica case study.},
  url = {http://dblp.uni-trier.de/db/conf/i-semantics/i-semantics2011.html#ZaihrayeuPVA11},
  year = 2011
}

@inproceedings{conf/ircdl/AndrewsPZ09,
  added-at = {2011-11-07T00:00:00.000+0100},
  author = {Andrews, Pierre and Pane, Juan and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/23ee8e3721dc33763fc83a7079f4f0abf/dblp},
  booktitle = {NLP4DL/AT4DL},
  crossref = {conf/ircdl/2009nlp},
  editor = {Bernardi, Raffaella and Chambers, Sally and Gottfried, Björn and Segond, Frédérique and Zaihrayeu, Ilya},
  ee = {http://dx.doi.org/10.1007/978-3-642-23160-5_8},
  interhash = {0cb3600d80c457648cd7511a7f6dd92a},
  intrahash = {3ee8e3721dc33763fc83a7079f4f0abf},
  isbn = {978-3-642-23159-9},
  keywords = {dblp},
  pages = {114-134},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Semantic Disambiguation in Folksonomy: A Case Study.},
  url = {http://dblp.uni-trier.de/db/conf/ircdl/nlp2009.html#AndrewsPZ09},
  volume = 6699,
  year = 2009
}

@inproceedings{Giunchiglia2009,
  added-at = {2011-08-03T10:31:15.000+0200},
  author = {Giunchiglia, F. and Kharkevich, U. and Zaihrayeu, I.},
  biburl = {http://www.bibsonomy.org/bibtex/2c4bfaa43f23aafcf4de0aa9b2d384da2/utahell},
  booktitle = {Proc. of the 6th European Semantic Web Conf. (ESWC2009)},
  editor = {et al., Lora Aroyo},
  interhash = {027e5a9dbf32e872c43169b2b268dde3},
  intrahash = {c4bfaa43f23aafcf4de0aa9b2d384da2},
  keywords = {imported},
  location = {Heraklion, Crete},
  pages = {429--444},
  publisher = {Springer-Verlag},
  title = {Concept search},
  year = 2009
}

@inproceedings{insemtives2011semantic,
  abstract = {In this paper we introduce an application that allows its
users to have an explicit control on the meaning of tags they use when
uploading photos on Flickr. In fact, this application provides to the users
an improved interface with which they can add concepts to photos instead
of simple free-text tags. They can thus directly provide semantic
tags for their photos that can then be used to improve services such as
search.},
  added-at = {2011-07-29T13:36:54.000+0200},
  author = {Andrews, Pierre and Kanshin, Sergey and Pane, Juan and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2cca8523d61a60df59a793b21e37e48e2/veronicasu},
  booktitle = {Proceedings of ESWC 2011},
  editor = {Antoniou, Grigoris and Grobelnik, Marko and Simperl, Elena},
  interhash = {b6fa35ca561b606c4b6d9d0430cc8eeb},
  intrahash = {cca8523d61a60df59a793b21e37e48e2},
  keywords = {annotation flickr folksonomy images semanticweb},
  month = {June},
  number = 2,
  pages = {476-480},
  publisher = {Springer},
  series = {LNCS},
  title = {Semantic Annotation of Images on Flickr},
  volume = 6644,
  year = 2011
}

@inproceedings{conf/cia/GiunchigliaZ02,
  added-at = {2011-07-04T00:00:00.000+0200},
  author = {Giunchiglia, Fausto and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2a41b7331860b5e226a42677154218e09/dblp},
  booktitle = {CIA},
  crossref = {conf/cia/2002},
  editor = {Klusch, Matthias and Ossowski, Sascha and Shehory, Onn},
  ee = {http://dx.doi.org/10.1007/3-540-45741-0_4},
  interhash = {8d83904f8d93f2008c7d2148da6da9b6},
  intrahash = {a41b7331860b5e226a42677154218e09},
  isbn = {3-540-44173-5},
  keywords = {dblp},
  pages = {18-35},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Making Peer Databases Interact - A Vision for an Architecture Supporting Data Coordination.},
  url = {http://dblp.uni-trier.de/db/conf/cia/cia2002.html#GiunchigliaZ02},
  volume = 2446,
  year = 2002
}

@inproceedings{andrews11sense,
  abstract = {Folksonomies, often known as tagging systems, such as the ones used on the popular Delicious or flickr websites, use a very simple knowledge organisation system.
Users are thus quick to adopt this system and create extensive knowledge annotations on the Web.
However, because of the simplicity of the folksonomy model, the semantics of the tags used is not explicit and can only be inferred from the context of use of the tags.
This is a barrier for the automatic use of such knowledge organisation systems by computers and new techniques have to be developed to extract the semantic of the tags used.
In this paper we discuss an algorithm to detect new senses of terms in a folksonomy; we also propose a formal evaluation methodology that will enable to compare results between different approaches in the field.

This work has been partially supported by INSEMTIVES project (FP7-231181, see http://www.insemtives.eu).},
  added-at = {2011-05-10T10:49:57.000+0200},
  author = {Andrews, Pierre and Pane, Juan and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2d663c7ac627095984ebd0ecfb85d1e41/mortimer_m8},
  booktitle = {Workshop on Discovering Meaning On the Go in Large Heterogeneous Data 2011},
  editor = {McNeill, Fiona and Halpin, Harry and Chan, Michael},
  interhash = {489c1ef84a3c8ac56ccc4ad5ea6ec410},
  intrahash = {d663c7ac627095984ebd0ecfb85d1e41},
  keywords = {algorithm disambiguation evauation induction semantic semanticweb sense wordnet},
  organization = {International Joint Conference on Artificial Intelligence},
  title = {Sense Induction in Folksonomies},
  year = 2011
}

@techreport{giunchiglia_zaihrayeu_2007,
  added-at = {2011-04-14T07:06:28.000+0200},
  author = {Giunchiglia, F. and Zaihrayeu, I.},
  biburl = {http://www.bibsonomy.org/bibtex/2a52b3a7978ce62618dd62cb96ac71efd/wyswilson},
  institution = { University of Trento},
  interhash = {8e158aab74dc7b004057aa418348c6a2},
  intrahash = {a52b3a7978ce62618dd62cb96ac71efd},
  keywords = {imported},
  number = { DIT-07-071},
  title = { Lightweight Ontologies},
  type = { Technical Report},
  url = {/brokenurl# http://publication.wilsonwong.me},
  year = { 2007}
}

@techreport{zaihrayeu_et_al_2007,
  added-at = {2011-04-14T07:06:28.000+0200},
  author = {Zaihrayeu, I. and Sun, L. and Giunchiglia, F. and Pan, W. and Ju, Q. and Chi, M. and Huang, X.},
  biburl = {http://www.bibsonomy.org/bibtex/22d6afd7791d3a010143e5a3f956197f2/wyswilson},
  institution = { University of Trento},
  interhash = {536ddd31fe90752d62794587ad07933a},
  intrahash = {2d6afd7791d3a010143e5a3f956197f2},
  keywords = {imported},
  number = { DIT-07-029},
  title = { From Web Directories to Ontologies: Natural Language Processing Challenges},
  type = { Technical Report},
  url = {/brokenurl# http://publication.wilsonwong.me},
  year = { 2007}
}

@inproceedings{insemtives2011semantic,
  abstract = {In this paper we introduce an application that allows its
users to have an explicit control on the meaning of tags they use when
uploading photos on Flickr. In fact, this application provides to the users
an improved interface with which they can add concepts to photos instead
of simple free-text tags. They can thus directly provide semantic
tags for their photos that can then be used to improve services such as
search.},
  added-at = {2011-04-06T16:01:21.000+0200},
  author = {Andrews, Pierre and Kanshin, Sergey and Pane, Juan and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2cca8523d61a60df59a793b21e37e48e2/mortimer_m8},
  booktitle = {Proceedings of ESWC 2011},
  editor = {Antoniou, Grigoris and Grobelnik, Marko and Simperl, Elena},
  interhash = {b6fa35ca561b606c4b6d9d0430cc8eeb},
  intrahash = {cca8523d61a60df59a793b21e37e48e2},
  keywords = {demo flickr folksonomy insemtives},
  month = {June},
  number = 2,
  pages = {476-480},
  publisher = {Springer},
  series = {LNCS},
  title = {Semantic Annotation of Images on Flickr},
  volume = 6644,
  year = 2011
}

@inbook{insemtives11alt4dl,
  abstract = {  Social annotation systems such as del.icio.us, Flickr and others have gained tremendous popularity among Web 2.0 users. One of the factors of success was the simplicity of the underlying model, which consists of a resource (e.g., a web page), a tag (e.g., a text string), and a user who annotates the resource with the tag. However, due to the syntactic nature of the underlying model, these systems have been criticised for not being able to take into account the explicit semantics implicitly encoded by the users in each tag. 
  In this article we: a) provide a formalisation of an annotation model in which tags are based on concepts instead of being free text strings; b) describe how an existing annotation system can be converted to the proposed model; c) report on the results of such a conversion on the example of a del.icio.us dataset; and d) show how the quality of search can be improved by the semantic in the converted dataset. },
  added-at = {2011-04-06T15:47:15.000+0200},
  author = {Andrews, Pierre and Pane, Juan and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2148ce9640fca6377ea281c9c9786afc1/mortimer_m8},
  editor = {Bernardi, Raffaella and Chambers, Sally and Gottfried, Bjoern and Segond, Frederique and Zaihrayeu, Ilya},
  interhash = {4ccf9d9dd11b12f35dcb2e0c315e88a8},
  intrahash = {148ce9640fca6377ea281c9c9786afc1},
  keywords = {digitallibrary disambiguation folksonomy preprocessing semantic semanticweb tagging},
  publisher = {Springer},
  series = {Lecture Notes on Computer Science), Hot Topic subline},
  title = {Semantic Disambiguation in Folksonomy: a Case Study},
  volume = 6699,
  year = 2011
}

@techreport{zaihrayeu_et_al_2007,
  added-at = {2010-11-26T09:32:26.000+0100},
  author = {Zaihrayeu, I. and Sun, L. and Giunchiglia, F. and Pan, W. and Ju, Q. and Chi, M. and Huang, X.},
  biburl = {http://www.bibsonomy.org/bibtex/2698fb4047f9b91f727fb2bdc8125a436/wyswilson},
  institution = {University of Trento},
  interhash = {536ddd31fe90752d62794587ad07933a},
  intrahash = {698fb4047f9b91f727fb2bdc8125a436},
  keywords = {imported},
  number = {DIT-07-029},
  title = {From Web Directories to Ontologies: Natural Language Processing Challenges},
  type = {Technical Report},
  url = {http://ontology.csse.uwa.edu.au/reference/browse_paper.php?pid=233282024},
  year = 2007
}

@techreport{giunchiglia_zaihrayeu_2007,
  added-at = {2010-11-26T09:32:26.000+0100},
  author = {Giunchiglia, F. and Zaihrayeu, I.},
  biburl = {http://www.bibsonomy.org/bibtex/218b1e34918865dfa125bc9c707c19db8/wyswilson},
  institution = {University of Trento},
  interhash = {8e158aab74dc7b004057aa418348c6a2},
  intrahash = {18b1e34918865dfa125bc9c707c19db8},
  keywords = {imported},
  number = {DIT-07-071},
  title = {Lightweight Ontologies},
  type = {Technical Report},
  url = {http://ontology.csse.uwa.edu.au/reference/browse_paper.php?pid=233282021},
  year = 2007
}

@inproceedings{concept2009,
  abstract = {In this paper we present a novel approach, called Concept Search, which extends syntactic search, i.e., search based on the computation of string similarity between words, with semantic search, i.e., search based on the computation of semantic relations among concepts. The key idea of Concept Search is to operate on complex concepts and to maximally exploit the semantic information available, reducing to syntactic search only when necessary, i.e., when no semantic information is available. The experimental results show that Concept Search performs at least as well as syntactic search, improving the quality of results as a function of the amount of available semantics.},
  added-at = {2009-05-29T11:44:15.000+0200},
  author = {Giunchiglia, Fausto and Kharkevich, Uladzimir and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/24b3e412280afd0ff936a3b360bc323b4/eswc2009},
  booktitle = {6th Annual European Semantic Web Conference (ESWC2009)},
  interhash = {027e5a9dbf32e872c43169b2b268dde3},
  intrahash = {4b3e412280afd0ff936a3b360bc323b4},
  keywords = {Query Search_Engine Semantic_Continuum Semantic_Inverted_Index Semantic_Search Semantic_Web Visualization},
  month = {June},
  pages = {429-444},
  title = {Concept Search},
  url = {http://data.semanticweb.org/conference/eswc/2009/paper/104},
  year = 2009
}

@inproceedings{conf/esws/GiunchigliaKZ09,
  added-at = {2009-05-23T00:00:00.000+0200},
  author = {Giunchiglia, Fausto and Kharkevich, Uladzimir and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2b41cf06676d876ccc4cac719dbdcbe6b/dblp},
  booktitle = {ESWC},
  crossref = {conf/esws/2009},
  date = {2009-05-23},
  description = {dblp},
  editor = {Aroyo, Lora and Traverso, Paolo and Ciravegna, Fabio and Cimiano, Philipp and Heath, Tom and Hyvönen, Eero and Mizoguchi, Riichiro and Oren, Eyal and Sabou, Marta and Simperl, Elena Paslaru Bontas},
  ee = {http://dx.doi.org/10.1007/978-3-642-02121-3_33},
  interhash = {027e5a9dbf32e872c43169b2b268dde3},
  intrahash = {b41cf06676d876ccc4cac719dbdcbe6b},
  isbn = {978-3-642-02120-6},
  keywords = {dblp},
  pages = {429-444},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Concept Search.},
  url = {http://dblp.uni-trier.de/db/conf/esws/eswc2009.html#GiunchigliaKZ09},
  volume = 5554,
  year = 2009
}

@inproceedings{semsearch-10,
  added-at = {2009-03-16T13:27:57.000+0100},
  author = {Giunchiglia, Fausto and Kharkevich, Uladzimir and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/296eaae7024861afdd5e66e6f8faf2beb/davidlan},
  booktitle = {Proceedings of the Workshop on Semantic Search (SemSearch 2008) at the 5th European Semantic Web Conference (ESWC 2008) , June 2, 2008, Tenerife, Spain},
  editor = {Bloehdorn, Stephan and Grobelnik, Marko and Mika, Peter and Tran, Duc Thanh},
  interhash = {76e52af131430f5587d771f7cdbf3f5b},
  intrahash = {96eaae7024861afdd5e66e6f8faf2beb},
  keywords = {search semsearch syntactic_search workshop},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Concept Search: Semantics Enabled Syntactic Search},
  url = {http://ceur-ws.org/Vol-334/paper-10.pdf},
  volume = 334,
  year = 2008
}

@article{keyhere,
  abstract = {Classifications have been used for centuries with the goal of cataloguing and searching large sets of objects. In the early
days it was mainly books; lately it has also become Web pages, pictures and any kind of digital resources. Classificationsdescribe their contents using natural language labels, an approach which has proved very effective in manual classification.However natural language labels show their limitations when one tries to automate the process, as they make it very hard toreason about classifications and their contents. In this paper we introduce the novel notion of Formal Classification, as a graph structure where labels are written in a propositional concept language. Formal Classifications turn out to besome form of lightweight ontologies. This, in turn, allows us to reason about them, to associate to each node a normal formformula which univocally describes its contents, and to reduce document classification and query answering to reasoning aboutsubsumption.},
  added-at = {2009-03-01T17:41:13.000+0100},
  author = {Giunchiglia, Fausto and Marchese, Maurizio and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2942fb0298eda96d43111d9924c7e90b3/dominikb1888},
  description = {SpringerLink - Book Chapter},
  interhash = {37670157a92d7f5a5d0e27be3b2d44ca},
  intrahash = {942fb0298eda96d43111d9924c7e90b3},
  journal = {Journal on Data Semantics VIII},
  keywords = {diplomarbeit onotologies},
  pages = {57--81},
  title = {Encoding Classifications into Lightweight Ontologies},
  url = {http://dx.doi.org/10.1007/978-3-540-70664-9_3},
  year = 2007
}

@incollection{citeulike:4039776,
  abstract = {Hierarchical classifications are used pervasively by humans as a means to organize their data and knowledge about the world. One of their main advantages is that natural language labels, used to describe their contents, are easily understood by human users. However, at the same time, this is also one of their main disadvantages as these same labels are ambiguous and very hard to be reasoned about by software agents. This fact creates an insuperable hindrance for classifications to being embedded in the Semantic Web infrastructure. This paper presents an approach to converting classifications into lightweight ontologies, and it makes the following contributions: (i) it identifies the main NLP problems related to the conversion process and shows how they are different from the classical problems of NLP; (ii) it proposes heuristic solutions to these problems, which are especially effective in this domain; and (iii) it evaluates the proposed solutions by testing them on DMoz data.},
  added-at = {2009-02-13T13:22:04.000+0100},
  author = {Zaihrayeu, Ilya and Sun, Lei and Giunchiglia, Fausto and Pan, Wei and Ju, Qi and Chi, Mingmin and Huang, Xuanjing},
  biburl = {http://www.bibsonomy.org/bibtex/2723d465eea7f326d15481ea058a67f66/conchuir},
  citeulike-article-id = {4039776},
  doi = {http://dx.doi.org/10.1007/978-3-540-76298-0\_45},
  interhash = {088b4b04683a8ef21a93764d492559dc},
  intrahash = {723d465eea7f326d15481ea058a67f66},
  journal = {The Semantic Web},
  keywords = {aswc07, iswc07},
  pages = {623--636},
  posted-at = {2009-02-12 18:11:49},
  priority = {2},
  title = {From Web Directories to Ontologies: Natural Language Processing Challenges},
  url = {http://dx.doi.org/10.1007/978-3-540-76298-0\_45},
  year = 2008
}

@inproceedings{conf/esws/GiunchigliaKZ08,
  added-at = {2008-06-06T00:00:00.000+0200},
  author = {Giunchiglia, Fausto and Kharkevich, Uladzimir and Zaihrayeu, Ilya},
  biburl = {http://www.bibsonomy.org/bibtex/2bdd8aa2baab770b190a6488b6d7eda2a/dblp},
  booktitle = {SemSearch},
  crossref = {conf/esws/2008semsearch},
  date = {2008-06-06},
  description = {dblp},
  editor = {Bloehdorn, Stephan and Grobelnik, Marko and Mika, Peter and Tran, Duc Thanh},
  ee = {http://ceur-ws.org/Vol-334/paper-10.pdf},
  interhash = {76e52af131430f5587d771f7cdbf3f5b},
  intrahash = {bdd8aa2baab770b190a6488b6d7eda2a},
  keywords = {dblp},
  pages = {109-123},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Concept Search: Semantics Enabled Syntactic Search.},
  url = {http://dblp.uni-trier.de/db/conf/esws/semsearch2008.html#GiunchigliaKZ08},
  volume = 334,
  year = 2008
}