TY - CONF AU - Ireson, Neil AU - Ciravegna, Fabio A2 - Patel-Schneider, Peter F. A2 - Pan, Yue A2 - Hitzler, Pascal A2 - Mika, Peter A2 - Zhang, Lei A2 - Pan, Jeff Z. A2 - Horrocks, Ian A2 - Glimm, Birte T1 - Toponym Resolution in Social Media. T2 - #iswc2010# PB - Springer C1 - PY - 2010/ CY - VL - 6496 IS - SP - 370 EP - 385 UR - http://dblp.uni-trier.de/db/conf/semweb/iswc2010-1.html#IresonC10 DO - KW - ol_web2.0 KW - ontology_learning KW - social_media KW - toponym KW - disambiguation KW - methods_concepts L1 - SN - 978-3-642-17745-3 N1 - N1 - AB - Increasingly user-generated content is being utilised as a source of information, however each individual piece of content tends to contain low levels of information. In addition, such information tends to be informal and imperfect in nature; containing imprecise, subjective, ambiguous expressions. However the content does not have to be interpreted in isolation as it is linked, either explicitly or implicitly, to a network of interrelated content; it may be grouped or tagged with similar content, comments may be added by other users or it may be related to other content posted at the same time or by the same author or members of the author's social network. This paper generally examines how ambiguous concepts within user-generated content can be assigned a specific/formal meaning by considering the expanding context of the information, i.e. other information contained within directly or indirectly related content, and specifically considers the issue of toponym resolution of locations. ER - TY - CONF AU - Wetzker, Robert AU - Zimmermann, Carsten AU - Bauckhage, Christian AU - Albayrak, Sahin A2 - Davison, Brian D. A2 - Suel, Torsten A2 - Craswell, Nick A2 - Liu, Bing T1 - I tag, you tag: translating tags for advanced user models. T2 - WSDM PB - ACM C1 - PY - 2010/ CY - VL - IS - SP - 71 EP - 80 UR - http://dblp.uni-trier.de/db/conf/wsdm/wsdm2010.html#WetzkerZBA10 DO - KW - tag_translation KW - tagging KW - ol_web2.0 KW - methods_synonyms KW - disambiguation L1 - SN - 978-1-60558-889-6 N1 - dblp N1 - AB - Collaborative tagging services (folksonomies) have been among the stars of theWeb 2.0 era. They allow their users to label diverse resources with freely chosen keywords (tags). Our studies of two real-world folksonomies unveil that individual users develop highly personalized vocabularies of tags. While these meet individual needs and preferences, the considerable differences between personal tag vocabularies (personomies) impede services such as social search or customized tag recommendation. In this paper, we introduce a novel user-centric tag model that allows us to derive mappings between personal tag vocabularies and the corresponding folksonomies. Using these mappings, we can infer the meaning of user-assigned tags and can predict choices of tags a user may want to assign to new items. Furthermore, our translational approach helps in reducing common problems related to tag ambiguity, synonymous tags, or multilingualism. We evaluate the applicability of our method in tag recommendation and tag-based social search. Extensive experiments show that our translational model improves the prediction accuracy in both scenarios. ER - TY - CONF AU - Garcia, Andres AU - Szomszor, Martin AU - Alani, Harith AU - Corcho, Oscar A2 - T1 - Preliminary Results in Tag Disambiguation using DBpedia T2 - Knowledge Capture (K-Cap'09) - First International Workshop on Collective Knowledge Capturing and Representation - CKCaR'09 PB - C1 - PY - 2009/10 CY - VL - IS - SP - EP - UR - http://eprints.ecs.soton.ac.uk/17792/ DO - KW - ol_web2.0 KW - ontology_learning KW - disambiguation L1 - SN - N1 - N1 - AB - The availability of tag-based user-generated content for a variety of Web resources (music, photos, videos, text, etc.) has largely increased in the last years. Users can assign tags freely and then use them to share and retrieve information. However, tag-based sharing and retrieval is not optimal due to the fact that tags are plain text labels without an explicit or formal meaning, and hence polysemy and synonymy should be dealt with appropriately. To ameliorate these problems, we propose a context-based tag disambiguation algorithm that selects the meaning of a tag among a set of candidate DBpedia entries, using a common information retrieval similarity measure. The most similar DBpedia en-try is selected as the one representing the meaning of the tag. We describe and analyze some preliminary results, and discuss about current challenges in this area. ER - TY - CONF AU - Lee, Kangpyo AU - Kim, Hyunwoo AU - Shin, Hyopil AU - Kim, Hyoung-Joo A2 - T1 - Tag Sense Disambiguation for Clarifying the Vocabulary of Social Tags T2 - CSE PB - IEEE Computer Society C1 - PY - 2009/ CY - VL - IS - SP - 729 EP - 734 UR - http://dx.doi.org/10.1109/CSE.2009.454 DO - KW - disambiguation KW - tag_sense_disambiguation KW - tagging KW - ol_web2.0 L1 - SN - N1 - N1 - AB - Tagging is one of the most popular services in Web 2.0. As a special form of tagging, social tagging is done collaboratively by many users, which forms a so-called folksonomy. As tagging has become widespread on the Web, the tag vocabulary is now very informal, uncontrolled, and personalized. For this reason, many tags are unfamiliar and ambiguous to users so that they fail to understand the meaning of each tag. In this paper, we propose a tag sense disambiguating method, called Tag Sense Disambiguation (TSD), which works in the social tagging environment. TSD can be applied to the vocabulary of social tags, thereby enabling users to understand the meaning of each tag through Wikipedia. To find the correct mappings from del.icio.us tags to Wikipedia articles, we define the Local )eighbor tags, the Global )eighbor tags, and finally the )eighbor tags that would be the useful keywords for disambiguating the sense of each tag based on the tag co-occurrences. The automatically built mappings are reasonable in most cases. The experiment shows that TSD can find the correct mappings with high accuracy. ER - TY - CONF AU - Si, Xiance AU - Sun, Maosong A2 - Matousek, Václav A2 - Mautner, Pavel T1 - Disambiguating Tags in Blogs T2 - TSD PB - Springer C1 - PY - 2009/ CY - VL - 5729 IS - SP - 139 EP - 146 UR - http://dx.doi.org/10.1007/978-3-642-04208-9 DO - KW - tag_sense_disambigution KW - ol_web2.0 KW - disambiguation KW - data_blogs L1 - SN - 978-3-642-04207-2 N1 - N1 - AB - Blog users enjoy tagging for better document organization, while ambiguity in tags leads to inaccuracy in tag-based applications, such as retrieval, visualization or trend discovery. The dynamic nature of tag meanings makes current word sense disambiguation(WSD) methods not applicable. In this paper, we propose an unsupervised method for disambiguating tags in blogs. We first cluster the tags by their context words using Spectral Clustering. Then we compare a tag with these clusters to find the most suitable meaning. We use Normalized Google Distance to measure word similarity, which can be computed by querying search engines, thus reflects the up-to-date meaning of words. No human labeling efforts or dictionary needed in our method. Evaluation using crawled blog data showed a promising micro average precision of 0.842. ER - TY - CONF AU - Tesconi, Maurizio AU - Ronzano, Francesco AU - Marchetti, Andrea AU - Minutoli, Salvatore A2 - T1 - Semantify del.icio.us: Automatically Turn your Tags into Senses T2 - Proceedings of the Workshop Social Data on the Web (SDoW2008) PB - C1 - PY - 2008/ CY - VL - IS - SP - EP - UR - http://CEUR-WS.org/Vol-405/paper8.pdf DO - KW - ol_web2.0 KW - ontology_learning KW - toread KW - toread_dbe KW - disambiguation KW - tag_concept_mapping L1 - SN - N1 - In this paper, after a detailed analysis of the attempts made to improve the organization and structure of tagging systems as well as the usefulness of this kind of social data, we propose and evaluate the Tag Disambiguation Algorithm, mining del.icio.us data. N1 - AB - At present tagging is experimenting a great diffusion as the most adopted way to collaboratively classify resources over the Web. In this paper, after a detailed analysis of the attempts made to improve the organization and structure of tagging systems as well as the usefulness of this kind of social data, we propose and evaluate the Tag Disambiguation Algorithm, mining del.icio.us data. It allows to easily semantify the tags of the users of a tagging service: it automatically finds out for each tag the related concept of Wikipedia in order to describe Web resources through senses. On the basis of a set of evaluation tests, we analyze all the advantages of our sense-based way of tagging, proposing new methods to keep the set of users tags more consistent or to classify the tagged resources on the basis of Wikipedia categories, YAGO classes or Wordnet synsets. We discuss also how our semanitified social tagging data are strongly linked to DBPedia and the datasets of the Linked Data community. 1 ER - TY - CHAP AU - Kennedy, Alistair AU - Szpakowicz, Stanistaw A2 - Matoušek, Václav A2 - Mautner, Pavel T1 - Disambiguating Hypernym Relations for <i>Roget’s</i> Thesaurus T2 - Text, Speech and Dialogue PB - Springer C1 - Berlin / Heidelberg PY - 2007/ VL - 4629 IS - SP - 66 EP - 75 UR - http://dx.doi.org/10.1007/978-3-540-74628-7_11 DO - 10.1007/978-3-540-74628-7_11 KW - disambiguation KW - roget KW - thesaurus L1 - SN - N1 - SpringerLink - Abstract N1 - AB - Roget’s Thesaurus is a lexical resource which groups terms by semantic relatedness. It is Roget’s shortcoming that the relations are ambiguous, in that it does not name them; it only shows that there is a relation between terms. Our work focuses on disambiguating hypernym relations within Roget’s Thesaurus. Several techniques of identifying hypernym relations are compared and contrasted in this paper, and a total of over 50,000 hypernym relations have been disambiguated within Roget’s. Human judges have evaluated the quality of our disambiguation techniques, and we have demonstrated on several applications the usefulness of the disambiguated relations. ER - TY - CONF AU - man Au Yeung, Ching AU - Gibbins, Nicholas AU - Shadbolt, Nigel A2 - T1 - Tag Meaning Disambiguation through Analysis of Tripartite Structure of Folksonomies T2 - Web Intelligence/IAT Workshops PB - IEEE C1 - PY - 2007/ CY - VL - IS - SP - 3 EP - 6 UR - http://dx.doi.org/10.1109/WIIATW.2007.4427527 DO - KW - disambiguation KW - folksonomies KW - tag_sense_disambigution KW - ol_web2.0 KW - methods_concepts L1 - SN - N1 - N1 - AB - Collaborative tagging systems are becoming very popular recently. Web users use freely-chosen tags to describe shared resources, resulting in a folksonomy. One problem of folksonomies is that tags which appear in the same form may carry multiple meanings and represent different concepts. As this kind of tags are ambiguous, the precisions in both description and retrieval of the shared resources are reduced. We attempt to develop effective methods to disambiguate tags by studying the tripartite structure of folksonomies. This paper describes the network analysis techniques that we employ to discover clusters of nodes in networks and the algorithm for tag disambiguation. Experiments show that the method is very effective in performing the task. ER - TY - CONF AU - Widdows, Dominic AU - Dorow, Beate A2 - T1 - A Graph Model for Unsupervised Lexical Acquisition T2 - COLING PB - C1 - PY - 2002/ CY - VL - IS - SP - EP - UR - DO - KW - disambiguation KW - ontology_learning KW - tag KW - unsupervised L1 - SN - N1 - DBLP Record 'conf/coling/WiddowsD02' N1 - AB - ER -