BibSonomy publications for /user/nepomukMon Aug 30 14:19:40 CEST 2010Semantic Email as a Communication Medium for the Social Semantic Desktop2008information outlook semantic desktop scerri interface speech personal email social semanta from:irrecs conversation simon act user management add-in In this paper, we introduce a formal email workflow model based on traditional email, which enables the user to define and execute ad-hoc workflows in an intuitive way. This model paves the way for semantic annotation of implicit, well-defined workflows, thus making them explicit and exposing the missing information in a machine processable way. Grounding this work within the Social Semantic Desktop [1] via appropriate ontologies means that this information can be exploited for the benefit of the user. This will have a direct impact on their personal information management - given email is not just a major channel of data exchange between desktops, but it also serves as a virtual working environment where people collaborate. Thus the presented workflow model will have a concrete manifestation in the creation, organization and exchange of semantic desktop data.Thu Feb 04 09:21:48 CET 2010Menlo Park, CA, USAProceedings of the Second International Conference on Weblogs and Social Media (ICWSM 2008)192--193Logsonomy -- A Search Engine Folksonomy20082008 engine folksonomy from:jaeschke l3s logsonomy myown search wp5 In social bookmarking systems users describe bookmarks by keywords called tags. The structure behind these social systems, called folksonomies, can be viewed as a tripartite hypergraph of user, tag and resource nodes. This underlying network shows specific structural properties that explain its growth and the possibility of serendipitous exploration. Search engines filter the vast information of the web. Queries describe a user’s information need. In response to the displayed results of the search engine, users click on the links of the result page as they expect the answer to be of relevance. The clickdata can be represented as a folksonomy in which queries are descriptions of clicked URLs. This poster analyzes the topological characteristics of the resulting tripartite hypergraph of queries, users and bookmarks of two query logs and compares it two a snapshot of the folksonomy del.icio.us.Tue Aug 18 14:41:12 CEST 2009Semanta - Supporting Email Workflows in Business Processes2009business email from:irrecs process scerri semanta semantic simon workflow Tue Aug 18 14:38:02 CEST 2009Proceedings of the 6th European Semantic Web Conference (to appear)Semanta - Semantic Email made easy2009Email Scerri Semanta Semantic Simon desktop evaluation from:irrecs semantic social workflow Wed May 13 09:36:02 CEST 2009New York, NY, USAHT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia157--166Logsonomy - Social Information Retrieval with Logdata20082008 analysis engine from:jaeschke information l3s logsonomy myown network retrieval search social wp5 Social bookmarking systems constitute an established part of the Web 2.0. In such systems users describe bookmarks by keywords called tags. The structure behind these social systems, called folksonomies, can be viewed as a tripartite hypergraph of user, tag and resource nodes. This underlying network shows specific structural properties that explain its growth and the possibility of serendipitous exploration. Today’s search engines represent the gateway to retrieve information from the World Wide Web. Short queries typically consisting of two to three words describe a user’s information need. In response to the displayed results of the search engine, users click on the links of the result page as they expect the answer to be of relevance. This clickdata can be represented as a folksonomy in which queries are descriptions of clicked URLs. The resulting network structure, which we will term logsonomy is very similar to the one of folksonomies. In order to find out about its properties, we analyze the topological characteristics of the tripartite hypergraph of queries, users and bookmarks on a large snapshot of del.icio.us and on query logs of two large search engines. All of the three datasets show small world properties. The tagging behavior of users, which is explained by preferential attachment of the tags in social bookmark systems, is reflected in the distribution of single query words in search engines. We can conclude that the clicking behaviour of search engine users based on the displayed search results and the tagging behaviour of social bookmarking users is driven by similar dynamics.Wed Mar 25 16:11:16 CET 2009The path towards Semantic Email: Summary and Outlook2008from:siggi smilegroup In this paper we provide a summary of work that has been pursued in the area of Semantic Email, with a particular focus on our work in the area. The aim of this paper is to provide a status quo for this topic, as well as to generate ideas and discussions that could evolve the topic and take it to new heights. We finish off by outlining future directions for evaluation, improvement as well as extension of our current technologies.Wed Mar 25 15:51:00 CET 2009The Semantic Web - ISWC 200850--65RoundTrip Ontology Authoring2008authoring controlledLanguage from:siggi language ontology roundtrip smilegroup Controlled Language (CL) for Ontology Editing tools offer an attractive alternative for naive users wishing to create ontologies, but they are still required to spend time learning the correct syntactic structures and vocabulary in order to use the Controlled Language properly. This paper extends previous work (CLOnE) which uses standard NLP tools to process the language and manipulate an ontology. Here we also generate text in the CL from an existing ontology using template-based (or shallow) Natural Language Generation (NLG). The text generator and the CLOnE authoring process combine to form a RoundTrip Ontology Authoring environment: one can start with an existing imported ontology or one originally produced using CLOnE, (re)produce the Controlled Language, modify or edit the text as required and then turn the text back into the ontology in the CLOnE environment. Building on previous methodology we undertook an evaluation, comparing the RoundTrip Ontology Authoring process with a well-known ontology editor; where previous work required a CL reference manual with several examples in order to use the controlled language, the use of NLG reduces this learning curve for users and improves on existing results for basic ontology editing tasks.Mon Jan 26 11:29:43 CET 2009Collaboration and the Knowledge Economy: issues, Applications and Case StudiesPersonal and Group Knowledge Management with the Social Semantic Desktop 2008ICCS KTH WP9000 from:dapost nepomuk Mon Jan 26 11:29:43 CET 2009Social Networks for Knowledge Management in Management Consulting Firms2007from:dapost knowledge management networks social This paper seeks to review the role of social networks in knowledge management in the business context of consulting firms. Real cases are used to illustrate knowledge management efforts in consultancies. Based on the case study findings, we identify social networks as key ingredients of knowledge management in consulting firms. Therefore, we discuss social networks aspects and provide an account of relevant collaborative knowledge management tools supporting knowledge sharing within social networks.Mon Jan 26 11:29:43 CET 2009DEXA 2007213-222Exploring Knowledge Management with a Social Semantic Desktop Architecture2007ICCS WP9000 from:dapost nepomuk Mon Jan 26 11:29:43 CET 2009Journal of Computer Information Systems32-49Managing Knowledge at Multiple Organizational Levels Using Faceted OntologiesWinter 2008-20092008FZI ICCS WP9000 from:dapost nepomuk Mon Jan 26 11:29:43 CET 2009International Journal of Knowledge Management Studies 3/4330-355Developing Knowledge Networks: A Practical Methodology and Experiences from Cases12007ICCS WP9000 from:dapost nepomuk Wed Jan 21 12:00:38 CET 2009Lisboa, ProtugalInternational Conference on Web Information Systems and Technologies (WEBIST)Incremental End-User Query Construction for the Semantic Desktop2009Desktop L3S NEPOMUK Nepomuk Semantic WP2 from:mie Wed Jan 21 12:00:38 CET 2009International Semantic Web Conference (Posters & Demos)conf/semweb/2008pCEUR Workshop ProceedingsSUITS4RDF: Incremental Query Construction for the Semantic Web.4012008L3S Nepomuk WP2 from:mie Wed Jan 21 11:18:18 CET 2009Finding Experts on the Semantic Desktop200810 2008 from:demartini l3s lang:en wp5 Expert retrieval has attracted deep attention because of the huge economical impact it can have on enterprises. The classical dataset on which to perform this task is company intranet (i.e., personal pages, e-mails, documents). We propose a new system for nding experts in the user's desktop content. Looking at private documents and e-mails of the user, the system builds expert proles for all the people named in the desktop. This allows the search system to focus on the user's topics of interest thus generating satisfactory results on topics well represented on the desktop. We show, with an articial test collection, how the desktop content is appropriate for nding experts on the topic the user is interested in.Wed Jan 21 09:47:09 CET 2009Linz, Austria10th International Conference Information Integration and Web-based Applications & Services NovemberSocial Recommendations of Content and Metadata200811-2008 L3S WP5 from:stecher In this paper we present metadata based recommendation algorithms addressing two scenarios within social desktop communities: a) recommendation of resources from the co-worker's desktop, and b) recommendation of metadata for enriching the own annotation layer. Together with the algorithms we present first evaluation results as well as empirical evaluations showing that metadata based recommendations can be used in such distributed social desktop communities. Wed Jan 21 09:47:09 CET 2009New York, NY, USACIKM '08: Proceeding of the 17th ACM conference on Information and knowledge management797--806Wildcards for lightweight information integration in virtual desktops200810-2008 L3S WP5 from:stecher We present a flexible information integration approach which addresses the dynamic integration needs in a personal desktop environment where only partial mappings are defined between the sources to be integrated. Our approach is based on query rewriting using substitution rules. In addition to exploiting defined mappings, we employ substitution strategies, which are inspired by the idea of using wildcards in querying and filtering tasks. Starting from a triple based query language as used for querying RDF data, unmapped ontological elements are substituted in a controlled way with variables, leading to a controlled form of query relaxation. In addition, the approach also provides evidences for refining the existing mapping based on the results of executing the relaxed queries. Different strategies for replacing non-matched ontology elements with variables are presented and evaluated over real-world data sets.Wed Jan 21 09:47:09 CET 2009Digital Information Management, 2008. ICDIM 2008. Third International Conference onNov.375-380Query rewriting for lightweight information integration200811-2008 L3S WP5 from:stecher Light-weight information integration has to be able to effectively deal with settings where only partial mappings between the information sources to be integrated are defined. In our query rewriting approach, such partial mappings are used as the basis for defining several strategies to substitute elements in the query, and for introducing wildcards for relaxing the query when mappings are missing. The approach also supports the extension and refinement of the existing mappings based on the achieved query results and optional feedback of the user. This paper presents the proposed rewriting strategies, focusing on strategies exploiting ontological knowledge, and a comparison and evaluation of the strategies for real-world datasets.Wed Jan 21 00:00:56 CET 2009Busan, South KoreaThe sixth International Semantic Web Conference (ISWC2007)NovemberRecipes for Semantic Web Dog Food --- The ESWC2006 and ISWC2006 Metadata Projects2007from:dunken69 Tue Jan 20 12:21:05 CET 2009Talk12Talk: The Semantic Desktop - a new hope for Personal Information Management200812 2008 dfki from:leobard lang:en wp2 wp7 With today's operating systems it is possible to store a file to a folder, but not to a project or a person. Applications do not share concepts of persons or projects. In the Semantic Web effort, the W3C has proposed standards for the management of metadata. This talk is about a merge of Semantic Web and Personal Computers resulting in the Semantic Desktop. Existing data sources are adapted to RDF, enabling integration across applications. Different projects aim at implementing the new paradigm, in the talk the open source frameworks published by the NEPOMUK project are presented.