PUMA publications for /author/Ching%20man%20Yeunghttps://puma.uni-kassel.de/author/Ching%20man%20YeungPUMA RSS feed for /author/Ching%20man%20Yeung2024-03-29T07:29:11+01:00From User Behaviours to Collective Semanticshttps://puma.uni-kassel.de/bibtex/208831b7e19efd4e6b149fb4af180a5af/benzbenz2011-07-29T09:40:42+02:00collective_semantics social_tagging semantics <meta content="thesis" itemprop="educationalUse"/><span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching Man Au Yeung" itemprop="url" href="/author/Ching%20Man%20Au%20Yeung"><span itemprop="name">C. Yeung</span></a></span>. </span><em>University of Southampton, </em>(<em><span>2009<meta content="2009" itemprop="datePublished"/></span></em>)Fri Jul 29 09:40:42 CEST 2011From User Behaviours to Collective Semantics2009collective_semantics social_tagging semantics Mutual Contextualization in Tripartite Graphs of Folksonomieshttps://puma.uni-kassel.de/bibtex/2ceaf5504144fb6a88ef91853421a7644/benzbenz2011-02-17T23:23:34+01:00tagging ol_web2.0 folksonomies context <span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching man Yeung" itemprop="url" href="/author/Ching%20man%20Yeung"><span itemprop="name">C. man Yeung</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nicholas Gibbins" itemprop="url" href="/author/Nicholas%20Gibbins"><span itemprop="name">N. Gibbins</span></a></span>, und <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nigel Shadbolt" itemprop="url" href="/author/Nigel%20Shadbolt"><span itemprop="name">N. Shadbolt</span></a></span>. </span><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">The Semantic Web</span>, </em><em>Volume 4825 von Lecture Notes in Computer Science, </em><em><span itemprop="publisher">Springer</span>, </em><em>Berlin / Heidelberg, </em></span>(<em><span>2007<meta content="2007" itemprop="datePublished"/></span></em>)Thu Feb 17 23:23:34 CET 2011Berlin / HeidelbergThe Semantic Web966-970Lecture Notes in Computer ScienceMutual Contextualization in Tripartite Graphs of Folksonomies48252007tagging ol_web2.0 folksonomies context The use of tags to describe Web resources in a collaborative manner has experienced rising popularity among Web users in recent years. The product of such activity is given the name folksonomy, which can be considered as a scheme of organizing information in the users’ own way. This research work attempts to analyze tripartite graphs – graphs involving users, tags and resources – of folksonomies and discuss how these elements acquire their semantics through their associations with other elements, a process we call mutual contextualization. By studying such process, we try to identify solutions to problems such as tag disambiguation, retrieving documents of similar topics and discovering communities of users. This paper describes the basis of the research work, mentions work done so far and outlines future plans.SpringerLink - AbstractOn Measuring Expertise in Collaborative Tagging Systemshttps://puma.uni-kassel.de/bibtex/24831ad30a8a37f6b5d1adf3d3d717713/benzbenz2011-02-04T16:10:11+01:00spear expertise systems tagging experts evidnet <span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching Man Au Yeung" itemprop="url" href="/author/Ching%20Man%20%7bAu%20Yeung%7d"><span itemprop="name">C. Au Yeung</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael G. Noll" itemprop="url" href="/author/Michael%20G.%20Noll"><span itemprop="name">M. Noll</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nicholas Gibbins" itemprop="url" href="/author/Nicholas%20Gibbins"><span itemprop="name">N. Gibbins</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Christoph Meinel" itemprop="url" href="/author/Christoph%20Meinel"><span itemprop="name">C. Meinel</span></a></span>, und <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nigel Shadbolt" itemprop="url" href="/author/Nigel%20Shadbolt"><span itemprop="name">N. Shadbolt</span></a></span>. </span><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">WebSci'09: Web Science Conference 2009 - Society On-Line, Athens, Greece, 18-20 March, 2009</span>, </em></span>(<em><span>März 2009<meta content="März 2009" itemprop="datePublished"/></span></em>)Fri Feb 04 16:10:11 CET 2011WebSci'09: Web Science Conference 2009 - Society On-Line, Athens, Greece, 18-20 March, 2009MarchOn Measuring Expertise in Collaborative Tagging Systems2009spear expertise systems tagging experts evidnet Collaborative tagging systems such as Delicious provide a new means of organizing and sharing resources. They also allow users to search for documents relevant to a particular topic or for other users who are experts in a particular domain. Nevertheless, identifying relevant documents and knowledgeable users is not a trivial task, especially when the volume of documents is huge and there exist spamming activities. In this paper, we discuss the notions of experts and expertise in the context of collaborative tagging systems. We propose that the level of expertise of a user in a particular topic is mainly determined by two factors: (1) there should be a relationship of mutual reinforcement between the expertise of a user and the quality of a document; and (2) an expert should be one who tends to identify useful documents before other users discover them. We propose a graph-based algorithm, SPEAR (SPamming-resistant Expertise Analysis and Ranking), which implements the above ideas for ranking users in a collaborative tagging system. We carry out experiments on both simulated data sets and real-world data sets obtained from Delicious, and show that SPEAR is more resistant to spammers than other methods such as the HITS algorithm and simple statistical measures.Tag Meaning Disambiguation through Analysis of Tripartite Structure of Folksonomieshttps://puma.uni-kassel.de/bibtex/2a7e6e642d676b6ce9b5e5b3a4d350eac/benzbenz2011-02-04T16:09:44+01:00ol_web2.0 folksonomies methods_concepts disambiguation tag_sense_disambigution <span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching man Au Yeung" itemprop="url" href="/author/Ching%20man%20Au%20Yeung"><span itemprop="name">C. man Au Yeung</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nicholas Gibbins" itemprop="url" href="/author/Nicholas%20Gibbins"><span itemprop="name">N. Gibbins</span></a></span>, und <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nigel Shadbolt" itemprop="url" href="/author/Nigel%20Shadbolt"><span itemprop="name">N. Shadbolt</span></a></span>. </span><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Web Intelligence/IAT Workshops</span>, </em></span><em>Seite <span itemprop="pagination">3--6</span>. </em><em><span itemprop="publisher">IEEE</span>, </em>(<em><span>2007<meta content="2007" itemprop="datePublished"/></span></em>)Fri Feb 04 16:09:44 CET 2011Web Intelligence/IAT Workshopsconf/iat/2007w3--6Tag Meaning Disambiguation through Analysis of Tripartite Structure of Folksonomies2007ol_web2.0 folksonomies methods_concepts disambiguation tag_sense_disambigution 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.Web Search Disambiguation by Collaborative Tagginghttps://puma.uni-kassel.de/bibtex/28eb3850df53262492c16071ee9cbb911/benzbenz2011-02-04T16:09:25+01:00ol_web2.0 methods_concepts <span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching Man Au Yeung" itemprop="url" href="/author/Ching%20Man%20%7bAu%20Yeung%7d"><span itemprop="name">C. Au Yeung</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nicholas Gibbins" itemprop="url" href="/author/Nicholas%20Gibbins"><span itemprop="name">N. Gibbins</span></a></span>, und <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nigel Shadbolt" itemprop="url" href="/author/Nigel%20Shadbolt"><span itemprop="name">N. Shadbolt</span></a></span>. </span><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings of the Workshop on Exploiting Semantic Annotations in Information Retrieval (ESAIR 2008), co-located with ECIR 2008, Glasgow, United Kingdom, 31 March, 2008</span>, </em></span><em>Seite <span itemprop="pagination">48--61</span>. </em>(<em><span>2008<meta content="2008" itemprop="datePublished"/></span></em>)Fri Feb 04 16:09:25 CET 2011Proceedings of the Workshop on Exploiting Semantic Annotations in Information Retrieval (ESAIR 2008), co-located with ECIR 2008, Glasgow, United Kingdom, 31 March, 200848--61Web Search Disambiguation by Collaborative Tagging2008ol_web2.0 methods_concepts Existing Web search engines such as Google mostly adopt a keyword-based approach, which matches the keywords in a query sub- mitted by a user with the keywords characterising the indexed Web doc- uments, and is quite successful in general in helping users locate useful documents. However, when the keyword submitted by the user is am- biguous, the search result usually consists of documents related to var- ious meanings of the keyword, in which probably only one of them is interesting to the user. In this paper we attempt to provide a solution to this problem by using the semantics extracted from collaborative tag- ging in the social bookmarking site del.icio.us. For an ambiguous word, we extract sets of tags which are related to it in di®erent contexts by performing a community-discovery algorithm on folksonomy networks. The sets of tags are then used to disambiguate search results returned by del.icio.us and Google. Experimental results show that our method is able to disambiguate the documents returned by the two systems with high precision.Understanding the Semantics of Ambiguous Tags in Folksonomieshttps://puma.uni-kassel.de/bibtex/226e6ce8edf984c9d247aa8e304afe565/benzbenz2011-02-04T16:09:25+01:00ol_web2.0 <span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching man Au Yeung" itemprop="url" href="/author/Ching%20man%20Au%20Yeung"><span itemprop="name">C. man Au Yeung</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nicholas Gibbins" itemprop="url" href="/author/Nicholas%20Gibbins"><span itemprop="name">N. Gibbins</span></a></span>, und <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nigel Shadbolt" itemprop="url" href="/author/Nigel%20Shadbolt"><span itemprop="name">N. Shadbolt</span></a></span>. </span><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Proceedings of the International Workshop on Emergent Semantics and Ontology Evolution (ESOE2007) at ISWC/ASWC2007, Busan, South Korea, November</span>, </em></span>(<em><span>2007<meta content="2007" itemprop="datePublished"/></span></em>)Fri Feb 04 16:09:25 CET 2011Proceedings of the International Workshop on Emergent Semantics and Ontology Evolution (ESOE2007) at ISWC/ASWC2007, Busan, South Korea, NovemberUnderstanding the Semantics of Ambiguous Tags in Folksonomies2007ol_web2.0 The use of tags to describe Web resources in a collaborative manner has experienced rising popularity among Web users in recent years. The product of such activity is given the name folksonomy, which can be considered as a scheme of organizing information in the users' own way. In this paper, we present a possible way to analyze the tripartite graphs -- graphs involving users, tags and resources -- of folksonomies and discuss how these elements acquire their meanings through their associ- ations with other elements, a process we call mutual contextualization. In particular, we demonstrate how different meanings of ambiguous tags can be discovered through such analysis of the tripartite graph by study- ing the tag sf. We also discuss how the result can be used as a basis to better understand the nature of folksonomies.Understanding the Semantics of Ambiguous Tags in Folksonomieshttps://puma.uni-kassel.de/bibtex/238a0e7a07d8bd94b8ca7cc3cfd189b7e/hothohotho2009-11-01T18:42:37+01:00tag disambiguation semantics <span class="authorEditorList"><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ching man Au Yeung" itemprop="url" href="/author/Ching%20man%20Au%20Yeung"><span itemprop="name">C. man Au Yeung</span></a></span>, <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nicholas Gibbins" itemprop="url" href="/author/Nicholas%20Gibbins"><span itemprop="name">N. Gibbins</span></a></span>, und <span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Nigel Shadbolt" itemprop="url" href="/author/Nigel%20Shadbolt"><span itemprop="name">N. Shadbolt</span></a></span>. </span><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">ESOE</span>, </em></span><em>Volume 292 von CEUR Workshop Proceedings, </em><em>Seite <span itemprop="pagination">108-121</span>. </em><em><span itemprop="publisher">CEUR-WS.org</span>, </em>(<em><span>2007<meta content="2007" itemprop="datePublished"/></span></em>)Sun Nov 01 18:42:37 CET 2009ESOEDBLP:conf/semweb/2007esoe108-121CEUR Workshop ProceedingsUnderstanding the Semantics of Ambiguous Tags in Folksonomies2922007tag disambiguation semantics