% This file was created with JabRef 2.5. % Encoding: UTF8 @INPROCEEDINGS{Sauermann+2005d, author = {Leo Sauermann and Ansgar Bernardi and Andreas Dengel}, title = {{Overview and Outlook on the Semantic Desktop}}, booktitle = {Proceedings of the 1st Workshop on The Semantic Desktop at the ISWC 2005 Conference}, year = {2005}, editor = {Stefan Decker and Jack Park and Dennis Quan and Leo Sauermann}, volume = {175}, series = {CEUR Workshop Proceedings}, pages = {pp. 1-19}, month = {November}, publisher = {CEUR-WS}, note = {http:// CEUR-WS.org/Vol-175/}, abstract = {In this paper we will give an overview of the Semantic Desktop paradigm, beginning with the history of the term, a definition, current work and its relevance to knowledge management of the future. Existing applications and research results are listed and their role as building blocks of the future Semantic Desktop described. Based on the analysis of existing systems we propose two software architecture paradigms, one for the Semantic Desktop at large and another for applications running on a Semantic Desktop. A view on the context aspect of the Semantic Desktop and the Knowledge Management aspect is given. Based on the current events and projects, we give an outlook on the next steps.}, crossref = {ISSN 1613-0073}, file = {Sauermann+2005d.pdf:Sauermann+2005d.pdf:PDF}, owner = {Sauermann}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann+2005d.pdf} } @INPROCEEDINGS{Sauermann+2006d, author = {Leo Sauermann and Gunnar Aastrand Grimnes and Malte Kiesel and Christiaan Fluit and Heiko Maus and Dominik Heim and Danish Nadeem and Benjamin Horak and Andreas Dengel}, title = {{Semantic Desktop 2.0: The Gnowsis Experience}}, booktitle = {Proc. of the ISWC Conference}, year = {2006}, volume = {4273/2006}, series = {Lecture Notes in Computer Science}, pages = {887-900}, month = {Nov}, publisher = {Springer Berlin / Heidelberg}, note = {ISSN 0302-9743 (Print) 1611-3349 (Online)}, abstract = {In this paper we present lessons learned from building a Semantic Desktop system, the gnowsis beta. On desktop computers, semantic software has to provide stable services and has to reflect the personal view of the user. Our approach to ontologies, the Personal Information Model PIMO allows to create tagging services like del.icio.us on the desktop. A semantic wiki allows further annotations. Continuous evaluations of the system helped to improve it. These results were created in the EPOS research project and are available in the open source projects Aperture, kaukoluwiki, and gnowsis and will be continued in the Nepomuk project. By using these components, other developers can create new desktop applications the web 2.0 way.}, crossref = {ISBN: 978-3-540-49029-6}, doi = {http://dx.doi.org/10.1007/11926078_64}, ee = {http://dx.doi.org/10.1007/11926078_64}, file = {Sauermann+2006d.pdf:Sauermann+2006d.pdf:PDF}, owner = {sauermann}, timestamp = {2006.05.31}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann+2006d.pdf} } @INPROCEEDINGS{adrian+2007a, author = {Benjamin Adrian and Leo Sauermann and Thomas Roth-Berghofer}, title = {ConTag: A semantic tag recommendation system}, booktitle = {Proceedings of I-Semantics' 07}, year = {2007}, editor = {Tassilo Pellegrini and Sebastian Schaffert}, pages = {pp. 297-304}, publisher = {JUCS}, abstract = {ConTag is an approach to generate semantic tag recommendations for documents based on Semantic Web ontologies and Web 2.0 services. We designed and implemented a process to normalize documents to RDF format, extract document topics using Web 2.0 services and finally match extracted topics to a Semantic Web ontology. Due to ConTag we are able to show that the information provided by Web 2.0 services in combination with a Semantic Web ontology enables the generation of relevant semantic tag recommendations for documents. The main contribution of this work is a semantic tag recommendation process based on a choreography of Web 2.0 services.}, doi = {ISSN 0948-6968}, file = {adrian+2007a.pdf:adrian+2007a.pdf:PDF}, owner = {sauermann}, timestamp = {2007.09.12}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/adrian+2007a.pdf} } @TECHREPORT{EPOSGuidingExample, author = {Jan-Thies B\"ahr and {Ludger van} Elst and Andreas Lauer and Heiko Maus and Leo Sauermann and Sven Schwarz}, title = {{{EPOS} -- {G}uiding {E}xample}}, institution = {DFKI}, year = {2004}, type = {internal report}, file = {EPOS_GuidingExample.pdf:project/epos/EPOS_GuidingExample.pdf:PDF}, language = {english}, owner = {maus} } @INPROCEEDINGS{Bibikas+2008organik, author = {Dimitris Bibikas and Dimitrios Kourtesis and Iraklis Paraskakis and Ansgar Bernardi and Leo Sauermann and Dimitris Apostolou and Gregoris Mentzas and Ana Cristina Vasconcelos}, title = {Organisational Knowledge Management Systems in the Era of Enterprise 2.0: The case of OrganiK}, booktitle = {Proc. SAW Workshop at BIS conference}, year = {2008}, editor = {Dominik Flejter and Slawomir Grzonkowski and Tomasz Kaczmarek and Marek Kowalkiewicz and Tadhg Nagle and Jonny Parkes}, volume = {333}, series = {CEUR Workshop Proceedings ISSN 1613-0073}, pages = {45--53}, address = {Innsbruck, Austria,}, month = {6-7 May}, publisher = {CEUR}, file = {Bibikas+2008organik.pdf:Bibikas+2008organik.pdf:PDF}, owner = {sauermann}, session = {2nd Workshop on Social Aspects of the Web (SAW 2008)}, timestamp = {2008.07.28}, url = {http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-333/saw4.pdf} } @ARTICLE{Bibikas+2008organikjournal, author = {Dimitris Bibikas and Dimitrios Kourtesis and Iraklis Paraskakis and Ansgar Bernardi and Leo Sauermann and Dimitris Apostolou and Gregoris Mentzas and Ana Cristina Vasconcelos}, title = {A Sociotechnical Approach to Knowledge Management in the Era of Enterprise 2.0: the Case of OrganiK}, journal = {Scalable Computing: Practice and Experience Scientific International Journal for Parallel and Distributed Computing}, year = {2008}, volume = {9}, pages = {315–327}, number = {4}, month = {December}, note = {Special Issue: The Web on the Move}, abstract = {The increasing need of small knowledge-intensive companies for loosely-coupled collaboration and ad-hoc knowledge sharing has led to a strong requirement for an alternative approach to developing knowledge management systems. This paper proposes a framework for managing organisational knowledge that builds on a socio-technical perspective and considers people as well as technology as two highly interconnected components. We introduce a conceptualised system architecture that merges enterprise social software characteristics from the realm of Enterprise 2.0, and information processing techniques from the domain of Semantic Web technologies. In order to deliver a KM approach that could assist in reducing the socio-technical gap, we suggest deploying such a solution using an integrated sociotechnical implementation methodology.}, file = {Bibikas+2008organikjournal.pdf:Bibikas+2008organikjournal.pdf:PDF}, issn = {ISSN 1895-1767}, owner = {sauermann}, timestamp = {2009.01.07}, url = {http://www.scpe.org/vols/vol09/no4/SCPE_9_4_08.pdf} } @PROCEEDINGS{semdesk2005, title = {The Semantic Desktop - Next Generation Information Management \& Collaboration Infrastructure. Proc. of Semantic Desktop Workshop at the ISWC, Galway, Ireland}, year = {2005}, editor = {Stefan Decker and Jack Park and Dennis Quan and Leo Sauermann}, volume = {175}, series = {CEUR Workshop Proceedings ISSN 1613-0073}, month = {November}, author = {Stefan Decker and Jack Park and Dennis Quan and Leo Sauermann}, comment = {HAD TO ADD US AS AUTHORS OR THE RDFHOMEPAGE SCRIPT WON'T RENDER THIS :-|}, file = {SemanticDesktop2005Proceedings.pdf:http\://CEUR-WS.org/Vol-175/SemanticDesktop2005Proceedings.pdf:PDF}, keywords = {Semantic Desktop}, owner = {sauermann}, timestamp = {2006.02.23}, url = {http://CEUR-WS.org/Vol-175/} } @PROCEEDINGS{SemDeskWS2006, title = {Proceedings of the Semantic Desktop and Social Semantic Collaboration Workshop (SemDesk 2006) located at the 5th International Semantic Web Conference ISWC 2006}, year = {2006}, editor = {Stefan Decker and Jack Park and Leo Sauermann and S\"oren Auer and Siegfried Handschuh}, volume = {202}, series = {CEUR-WS}, address = {Athens, GA, USA}, month = {6th November 2006}, author = {Stefan Decker and Jack Park and Leo Sauermann and S\"oren Auer and Siegfried Handschuh}, comment = {HAD TO ADD US AS AUTHORS OR THE RDFHOMEPAGE SCRIPT WON'T RENDER THIS :-|}, doi = {ISSN: 1613-0073}, owner = {sauermann}, timestamp = {2006.12.21}, url = {http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-202/} } @INPROCEEDINGS{FernandezGarcia+2006, author = {Norberto Fernandez-Garcia and Leo Sauermann and Luis Sanchez and Ansgar Bernardi}, title = {PIMO Population and Semantic Annotation for the Gnowsis Semantic Desktop}, booktitle = {Proceedings of the Semantic Desktop and Social Semantic Collaboration Workshop at the ISWC}, year = {2006}, volume = {202}, series = {CEUR-WS}, abstract = {The Semantic Desktop brings the ideas and the technologies of the Semantic Web into the personal computer desktop. As a prerequisite for applying Semantic Web technologies to a certian domain of knowledge an ontological model of the domain is required. In the Gnowsis Semantic Desktop, the PIMO (Personal Information Model Ontology) addresses this problem by providing a generic lightweight ontology whose classes model the mian concepts involved in the daily activities of a person: places, organizations, persons, etc. But in order to be fully useful for a certain user, this generic model needs to be personalized and populated, adding more classes and concrete instances of the existent classes. As the process of manual population could be tedious and time consuming, in this paper we propose an alternative which tries to exploit the information that the user provides while performing Web searches. Apart from populating the PIMO, our approach is useful in resource annotation.}, file = {FernandezGarcia+2006.pdf:FernandezGarcia+2006.pdf:PDF}, owner = {sauermann}, timestamp = {2006.12.21}, url = {http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-202/SEMDESK2006_0008.pdf} } @INPROCEEDINGS{Grimnes+2006, author = {Gunnar AAstrand Grimnes and Sven Schwarz and Leo Sauermann}, title = {{RDFHomepage or Finally, a use for your FOAF file }}, booktitle = {Proceedings of Semantic Web Scripting Workshop at ESWC06}, year = {2006}, abstract = {This paper presents the RDFHomepage project, a framework for using a person’s structured data sources to auto-generate an HTML homepage. RDFHomepage uses RDF files as input, and currently supports several well-known RDF schemas, such as FOAF. In addition to these we have RDF converters for other structured file-formats, like Bibtex. RDFHomepage produces valid HTML 4.01 Transitional pages, and makes it easy to roll-out functional homepages for a group of people. The generated HTML code is very general, allowing quick and easy page-redesigning using CSS. RDFHomepage is written in PHP and uses our system for generating PHP classes based on RDF class definitions, enabling quick and easy development of RDF handling PHP code.}, date-added = {2006-05-02 12:14:04 +0200}, date-modified = {2006-05-02 14:18:14 +0200}, url = {http://www.dfki.uni-kl.de/\~grimnes/papers/rdfhomepage.pdf} } @INPROCEEDINGS{groza+2007a, author = {Tudor Groza and Siegfried Handschuh and Knud Moeller and Gunnar Grimnes and Leo Sauermann and Enrico Minack and Cedric Mesnage and Mehdi Jazayeri and Gerald Reif and Rosa Gudjonsdottir}, title = {The NEPOMUK Project - On the way to the Social Semantic Desktop}, booktitle = {Proceedings of I-Semantics' 07}, year = {2007}, editor = {Tassilo Pellegrini and Sebastian Schaffert}, pages = {pp. 201-211}, publisher = {JUCS}, abstract = {This paper introduces the NEPOMUK project which aims to create a standard and reference implementation for the Social Semantic Desktop. We outline the requirements and functionalities that were identified for a useful Semantic Desktop system and present an architecture that fulfills these requirements which was acquired by incremental refinement of the architecture of existing Semantic Desktop prototypes. The NEPOMUK project is primarily motivated by three real-life industrial use-cases, we briefly outline these and the processes used to extract required functionalities from the people working in these areas today, and we present a selection of typical tasks where the Semantic Desktop could be of benefit.}, doi = {ISSN 0948-6968}, file = {groza+2007a.pdf:groza+2007a.pdf:PDF}, owner = {sauermann}, timestamp = {2007.09.12}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/groza+2007a.pdf} } @ARTICLE{Kiesel+2005, author = {Malte Kiesel and Leo Sauermann}, title = {Towards Semantic Desktop Wikis}, journal = {UPGRADE special issue on "The Semantic Web"}, year = {2005}, volume = {VI}, pages = {30 - 34}, abstract = {To manage information on a personal computer, tools are needed that allow easy entering of new knowledge and that can relate ideas and concepts to existing information. Wikis allow entering information in a quick and easy way. They can be employed for both collaborative and personal information management. Semantic Web standards such as RDF(S) (Resource Description Framework) and OWL (Web Ontology Language) provide means to represent formalized knowledge. Using these standards to represent relations between individual desktop data sources, an integrated view of the user's information can be realized, known as the Semantic Desktop. In this paper, we propose combining information represented using Semantic Web standards with the simple information management known from wikis. The result is a Semantic Desktop Wiki, which can form a melting pot for ideas and personal information management.}, file = {up6-6Kiesel.pdf:http\://www.upgrade-cepis.org/issues/2005/6/up6-6Kiesel.pdf:PDF}, owner = {sauermann}, timestamp = {2006.05.19}, url = {http://www.upgrade-cepis.org/issues/2005/6/upgrade-vol-VI-6.html} } @TECHREPORT{Minack+2008, author = {Enrico Minack and Leo Sauermann and Gunnar Grimnes and Christiaan Fluit and Jeen Broekstra}, title = {The Sesame Lucene Sail: RDF Queries with Full-text Search}, institution = {NEPOMUK Consortium}, year = {2008}, type = {Technical Report}, number = {2008-1}, month = {February}, abstract = {With the growth of the Semantic Web, the requirements on storing and querying RDF has become more sophisticated. When a larger amount of data has to be managed, queries in structured query languages, such as SPARQL, are not always powerful enough. Use of additional keywords for querying can further reduce the result set towards the actual relevant answers, however, SPARQL only provides complete string matching or filtering based on regular expressions, which is a very slow operation. In contrast, state of the art Information Retrieval (IR) techniques provide sophisticated features such as keyword search, lemmatisation, stemming and ranking. In this paper we present a combination of structured RDF queries and full-text search. It is implemented as an extension of an established RDF store (Sesame) with IR capabilities using the text search library Lucene, without requiring modifications to existing RDF query languages.}, file = {Minack+2008.pdf:Minack+2008.pdf:PDF}, owner = {sauermann}, timestamp = {2008.02.14}, url = {http://nepomuk.semanticdesktop.org/xwiki/bin/download/Main1/Publications/Minack%202008.pdf} } @INPROCEEDINGS{nadeem+2007a, author = {Danish Nadeem and Leo Sauermann}, title = {From Philosophy and Mental-Models to Semantic Desktop research: Theoretical Overview}, booktitle = {Proceedings of I-Semantics' 07}, year = {2007}, editor = {Tassilo Pellegrini and Sebastian Schaffert}, pages = {pp. 211-220}, publisher = {JUCS}, abstract = {This paper examines issues on Philosophy of Artificial Intelligence (AI), Cognitive Science and Mental Models. The paper provides a philosophical grounding for the researchers in Personal Information Management (PIM). An overview is given on various philosophical aspects of computer-based activities. Discussions on the theories relevant to understand the goals for the Semantic Desktop community are elicited. Philosophical theories are not immediately transparent to the programmers, but the ideas discussed here are intended to emphasize a theoretical foundation, with respect to Semantic Desktop long term goals. The goal of this paper is to examine the theories of Philosophy and to provide a conceptual idea to design user-intuitive Semantic Desktops. The paper tries to induce scientific curiosity among the Semantic Desktop researchers as well as to develop the future Semantic Desktops to realize Weak AI.}, doi = {ISSN 0948-6968}, file = {nadeem+2007a.pdf:nadeem+2007a.pdf:PDF}, owner = {sauermann}, timestamp = {2007.09.12}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/nadeem+2007a.pdf} } @INCOLLECTION{Sauermann2006b, author = {Leo Sauermann}, title = {Semantic Desktop -- Der Arbeitsplatz der Zukunft}, booktitle = {Semantic {W}eb -- {A}uf dem {W}eg zur vernetzten {W}issensgesellschaft}, publisher = {Springer Verlag}, year = {2006}, editor = {Andreas Blumauer and Tassilo Pellegrini}, series = { X.media.press}, pages = {161-176}, abstract = {Der Arbeitsplatz der Zukunft wird anders sein als der heutige Status Quo, die Änderungen finden auf verschiedenen Ebenen statt: Technik, Informationsrepräsentation und soziale Verhaltensweisen. In diesem Kapitel werden aktuelle Ansätze aus verschiedenen Forschungsgebieten beschrieben und kombiniert, von Semantic Web bis zu Visualisierung. Semantische Technologien ermöglichen es, die bestehenden Daten eines Benutzers neu zu interpretieren und zu verwenden, dabei bringt die Kombination von Semantic Web und Desktop Computern besondere Vorteile, ein Paradigma, das unter dem Titel Semantic Desktop vorgestellt wird.}, doi = {ISBN 3-540-29324-8}, language = {german}, owner = {sauermann}, url = {http://www.semantic-web.at/springer} } @INPROCEEDINGS{Sauermann2005b, author = {Leo Sauermann}, title = {The Semantic Desktop - a Basis for Personal Knowledge Management}, booktitle = {Proceedings of the I-KNOW 2005. 5th International Conference on Knowledge Management}, year = {2005}, editor = {Hermann Maurer and Cristian Calude and Arto Salomaa and Klaus Tochtermann}, pages = {294 - 301}, doi = {ISSN 0948-695x}, file = {Sauermann2005b.pdf:Sauermann2005b.pdf:PDF}, owner = {Sauermann}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann2005b.pdf} } @PHDTHESIS{Sauermann2009phd, author = {Leo Sauermann}, title = {The Gnowsis Semantic Desktop approach to Personal Information Management}, school = {Fachbereich Informatik der Universität Kaiserslautern}, year = {2009}, month = {06}, note = {Supervisors: Prof. Andreas Dengel, Prof. Mehdi Jazayeri. Buy on Amazon}, abstract = {We should no longer ask whether we have enough information, we should rather ask if we can manage the information we have. In theory, a person could store and access all information experienced in a lifetime. But to categorize and understand this information, integrated software tools are needed. Since 2003, I have been working on the vision of a Semantic Desktop to create a tool for keeping information. Based on semantic web standards developed by the World Wide Web Consortium (W3C), the information needed by a person to do knowledge work can be integrated and organized. In this thesis, a software architecture for the Semantic Desktop is presented consisting of ontologies, services, and applications. The core ontology is the Personal Information Model (PIMO), a personalized categorization and organisation framework. With it, a formal representation of the mental model of a user can be expressed. This personal information model is then used across applications and across domains, integrating information sources into a coherent view of the world. Existing documents are classified with multi-perspective classification, removing the limitations of hierarchical file structures. Several services are defind for the Semantic Desktop architecture. They are designed to run as operating system extensions and provide functionality to store data, annotate it, and support the user in PIM activities. To provide a user interface, different interface metaphors are tested in various prototypes. These range from small plugins that extend existing software with Semantic Desktop functionality to complex applications that allow generic resource browsing and annotations. The approach was evaluated in end-user experiments in order to find out how PIMO reflects the personal mental model of the user. It was verified to support the users in structuring their documents across applications according to their mental model and in retrieving information based on these structures. The realized implementation shows that the architecture is valid and works in real-life settings. The evaluated prototypes have shown their benefits in many person-years of productive usage. As part of our approach to software engineering at DFKI, we released our source code as free software. Other researchers have used our prototype as a basis for their work and have provided us with valuable feedback. Within the EU research project NEPOMUK, the presented results were integrated into the popular Linux desktop KDE (version 4) and are shipped to millions of users. The Aperture framework, initiated as part of this thesis, was downloaded more than 10.000 times and is in productive use.}, comment = {ISBN: 978-3-86624-449-8 http://www.dissertation.de/buch.php3?buch=5954}, keywords = {semanticdesktop, user study, semantic search, semantic wiki, semantic web, wiki, personal information management}, owner = {sauermann}, timestamp = {2009.06.02}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann2009phd.pdf} } @MISC{sauermannbenefits2008, author = {Leo Sauermann}, title = {Benefits of Semantic Web ... for you}, howpublished = {Research Notes}, month = {April}, year = {2008}, abstract = {Looking at the existing investments into information technology, why should you invest into Semantic Web? What are the key benefits I will get? And who can give me authentic data about experiences? In this research note, I reviewed seventeen case studies of applied Semantic Web in industry settings. These case studies were submitted by the respective authors to the SWEO interest group of W3C. By taking the 89 key benefits mentioned in the individual examples and integrating them into a classification scheme, we can see the important benefits of Semantic Web and the not-so-important. I also identify a possible area for growth. The presented data is not peer reviewed and sloppy, but can still give you a guide to using the Semantic web.}, owner = {sauermann}, timestamp = {2008.06.26}, url = {http://www.dfki.uni-kl.de/~sauermann/2008/04/benefits/} } @TECHREPORT{Sauermann2006c, author = {Leo Sauermann}, title = {PIMO-a PIM Ontology for the Semantic Desktop (draft)}, institution = {DFKI}, year = {2006}, type = {Draft}, owner = {sauermann}, timestamp = {2006.05.12}, url = {http://www.dfki.uni-kl.de/\~sauermann/2006/01-pimo-report/pimOntologyLanguageReport.html} } @INPROCEEDINGS{Sauermann2005a, author = {Leo Sauermann}, title = {The Gnowsis Semantic Desktop for Information Integration}, booktitle = {Proceedings of the IOA 2005 Workshop at the WM}, year = {2005}, publisher = {Springer}, file = {Sauermann2005a.pdf:Sauermann2005a.pdf:PDF}, owner = {Sauermann}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann2005a.pdf} } @MASTERSTHESIS{Sauermann2003, author = {Leo Sauermann}, title = {The Gnowsis-Using Semantic Web Technologies to build a Semantic Desktop}, school = {Technical University of Vienna}, year = {2003}, type = {Diploma thesis}, file = {Sauermann2003.pdf:Sauermann2003.pdf:PDF}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/sauermann2003.pdf} } @TECHREPORT{Sauermann+2007a, author = {Leo Sauermann and Richard Cyganiak and Max V\"olkel}, title = {Cool URIs for the Semantic Web}, institution = {DFKI GmbH}, year = {2007}, type = {Technical Memo}, number = {TM-07-01}, address = {Deutsches Forschungszentrum f \"ur K\"unstliche Intelligenz GmbH Postfach 2080 67608 Kaiserslautern}, month = {February}, note = {Written by 29.11.2006}, abstract = {The Resource Description Framework RDF allows you to describe web documents and resources from the real world—people, organisations, things—in a computer-processable way. Publishing such descriptions on the web creates the semantic web. URIs are very important as the link between RDF and the web. This article presents guidelines for their effective use. We discuss two strategies, called 303 URIs and hash URIs. We give pointers to several web sites that use these solutions, and briefly discuss why several other proposals have problems.}, file = {Sauermann+2007a.pdf:Sauermann+2007a.pdf:PDF}, owner = {sauermann}, timestamp = {2007.03.08}, url = {http://www.dfki.uni-kl.de/dfkidok/publications/TM/07/01/tm-07-01.pdf} } @INPROCEEDINGS{Sauermann+2006a, author = {Leo Sauermann and Andreas Dengel and Ludger van Elst and Andreas Lauer and Heiko Maus and Sven Schwarz}, title = {Personalization in the EPOS project}, booktitle = {Proceedings of the Semantic Web Personalization Workshop at the ESWC 2006 Conference}, year = {2006}, pages = {42 - 52}, abstract = {In this work we present the results of the EPOS project with regard to the needs of personalization in the Semantic Web. Focus of this work is the subjective view of an individual person, expressed in a Personal Information Model (PIMO). It is matched both with personal resources (files, e-mails, and websites) of the user and organizational knowledge (ontologies). A user observation component gathers actions of the user to calculate the current context with regards to current goals and matching elements in the user’s PIMO. Combined, the representation of the user’s stored information and the current context provide a thorough representation of the user. Desktop applications can use this representation to provide personalized services. Three special purpose applications were implemented: a search engine, a context-sensitive assistant, and a tool for filing new information. An evaluation of this approach showed that it increases productivity and indeed reflects the subjective view of users. Also, the approach satisfies most of the requirements of an Adaptive Educational Hypermedia System AEHS. Parts of this work are published as open source projects.}, file = {Sauermann+2006a.pdf:Sauermann+2006a.pdf:PDF}, owner = {sauermann}, timestamp = {2006.05.11}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann+2006a.pdf} } @INPROCEEDINGS{sauermann+2007b, author = {Leo Sauermann and Ludger van Elst and Andreas Dengel}, title = {PIMO - a Framework for Representing Personal Information Models}, booktitle = {Proceedings of I-Semantics' 07}, year = {2007}, editor = {Tassilo Pellegrini and Sebastian Schaffert}, pages = {pp. 270-277}, publisher = {JUCS}, doi = {ISSN 0948-6968}, file = {sauermann+2007b.pdf:sauermann+2007b.pdf:PDF}, owner = {sauermann}, timestamp = {2007.09.12}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/sauermann+2007b.pdf} } @INPROCEEDINGS{Sauermann+2008a, author = {Leo Sauermann and Gunnar Grimnes and Thomas Roth-Berghofer}, title = {The Semantic Desktop as a foundation for PIM research}, booktitle = {Proceedings of the Personal Information Management Workshop at the CHI 2008}, year = {2008}, editor = {Jaime Teevan and William Jones}, abstract = {Personal Information Management (PIM), both in science and in applications, is limited by the current approach to data management (files) and applications. The SemanticWeb and the Resource Description Framework (RDF) provide a standardized way to represent data, across applications and capture the respective application semantics. In recent years we have developed the Semantic Desktop approach, a semantic layer of personal computers that serves as middleware to integrate applications and their data. The user uses the Semantic Desktop to create a Personal Information Model (PIMO), a formal representation of the mental model of the user, and this PIMO is used to integrate various elements from the workspace. In this paper, we focus on what the Semantic Desktop can offer for research in Personal Information Management.}, owner = {sauermann}, timestamp = {2008.02.25}, url = {http://pim2008.ethz.ch/papers/pim2008-sauermann-etal.pdf} } @INPROCEEDINGS{Sauermann+2008evaluation, author = {Leo Sauermann and Dominik Heim}, title = {Evaluating long-term use of the Gnowsis Semantic Desktop for PIM}, booktitle = {Proc. ISWC Conference}, year = {2008}, volume = {5318}, series = {LNCS}, pages = {pp 467-482}, abstract = {The Semantic Desktop is a means to support users in Personal Information Management (PIM). Using the open source software prototype Gnowsis, we evaluated the approach in a two month case study in 2006 with eight participants. Two participants continued using the prototype and were interviewed after two years in 2008 to show their long-term usage patterns. This allows us to analyse how the system was used for PIM. Contextual interviews gave insights on behaviour, while questionnaires and event logging did not. We discovered that in the personal environment, simple has-Part and is-related relations are sufficient for users to file and re-find information, and that the personal semantic wiki was used creatively to note information.}, file = {Sauermann+2008evaluation.pdf:Sauermann+2008evaluation.pdf:PDF}, owner = {sauermann}, timestamp = {2008.07.24}, url = {http://www.springerlink.com/content/c7u686mq27751373/} } @INPROCEEDINGS{Sauermann+2005c, author = {Leo Sauermann and Sven Schwarz}, title = {Gnowsis Adapter Framework: Treating Structured Data Sources as Virtual RDF Graphs}, booktitle = {Proceedings of the ISWC 2005}, year = {2005}, editor = {Yolanda Gil and Enrico Motta and V. Richard Benjamins and Mark A. Musen}, number = {3729}, series = {LNCS}, pages = {p. 1016 ff.}, address = {Galway, Ireland}, month = {November 6-10, 2005}, publisher = {Springer}, abstract = {The integration of heterogenous data sources is a crucial step for the upcoming semantic web – if existing information is not integrated, where will the data come from that the semantic web builds on? In this paper we present the gnowsis adapter framework, an implementation of an RDF graph system that can be used to integrate structured data sources, together with a set of already implemented adapters that can be used in own applications or extended for new situations. We will give an overview of the architecture and implementation details together with a description of the common problems in this field and our solutions, leading to an outlook on the future developments we expect. Using our presented results, researchers can generate test data for experiments and practitioners can access their desktop data sources as RDF graph.}, file = {Sauermann+2005c.pdf:Sauermann+2005c.pdf:PDF}, owner = {Sauermann}, url = {http://www.dfki.uni-kl.de/\~sauermann/papers/Sauermann+2005c.pdf} } @INPROCEEDINGS{SauermannSchwarz2004, author = {Leo Sauermann and Sven Schwarz}, title = {Introducing the Gnowsis Semantic Desktop}, booktitle = {Poster at the International Semantic Web Conference ISWC 2004}, year = {2004}, file = {SauermannSchwarz2004.pdf:SauermannSchwarz2004.pdf:PDF}, owner = {Sauermann}, url = {http://iswc2004.semanticweb.org/posters/PID-QLIOYDYE-1090244935.pdf} } @INPROCEEDINGS{Schumacher+2008search, author = {Kinga Schuhmacher and Michael Sintek and Leo Sauermann}, title = {{Combining Fact and Document Retrieval with Spreading Activation for Semantic Desktop Search}}, booktitle = {Proc. of 5th European Semantic Web Conference ESWC}, year = {2008}, series = {LNCS}, pages = {569-583}, publisher = {Springer}, abstract = {The Semantic Desktop is a means to support users in Personal Information Management (PIM). It provides an excellent test bed for Semantic Web technology: resources (e. g., persons, projects, messages, documents) are distributed amongst multiple systems, ontologies are used to link and annotate them. Finding information is a core element in PIM. For the end user, the search interface has to be intuitive to use, natural language queries provide a simple mean to express requests. State of the art semantic search engines focus on fact retrieval or on semantic document retrieval. We combine both approaches to search the Semantic Desktop exploiting all available information. Our semantic search engine, built on semantic teleporting and spreading activation, is able to answer natural language queries with facts, e. g., a specific phone number, and/or relevant documents. We evaluated our approach on ESWC 2007 data in comparison with Google site search.}, comment = {ISBN:978-3-540-68233-2}, doi = {10.1007/978-3-540-68234-9_42}, file = {Schumacher+2008search.pdf:Schumacher+2008search.pdf:PDF}, owner = {sauermann}, timestamp = {2007.12.17}, url = {http://www.springerlink.com/content/a6683407861281q2/} } @INPROCEEDINGS{Siebert+2006b, author = {Mark Siebert and Pierre Smits and Leo Sauermann and Andreas Dengel}, title = {Increasing Search Quality with the Semantic Desktop in Proposal Development}, booktitle = {Proceedings of the Practical Aspects of Knowledge Management PAKM conference}, year = {2006}, volume = {4333/2006}, series = {Lecture Notes in Computer Science}, pages = {279-290}, publisher = {Springer Berlin / Heidelberg}, abstract = {Quicker response times and less production costs of proposal development require further automation of sales assistant functionality in CRM environments. Automation still struggles with the handling of abstraction and the subjective character of knowledge. Based on the knowledge creation framework the paper outlines and tests the increase of search quality with Semantic Desktop technology. The discussion of peer-to-peer settings and semantic concepts illustrates the influence of individual perspectives on search quality. It reveals first potentials and benefits for process-integration, like semantic CRM and illustrates approaches to increase knowledge worker’s productivity.}, doi = {http://dx.doi.org/10.1007/11944935_25}, owner = {sauermann}, timestamp = {2006.10.13} } @ARTICLE{TechnologyRadar2006web30, author = {Wolfgang Wahlster and Andreas Dengel, with contributions by Dietmar Dengler, Dominik Heckmann, Malte Kiesel, Alexander Pfalzgraf, Thomas Roth-Berghofer, Leo Sauermann, Eric Schwarzkopf, and Michael Sintek}, title = {Web 3.0: Convergence of Web 2.0 and the Semantic Web}, journal = {Technology Radar}, year = {2006}, volume = {II}, pages = {1-23}, month = {June}, abstract = {The World Wide Web (WWW) has drastically improved access to digitally stored information. However, content in the WWW has so far only been machine-readable but not machineunderstandable. Since information in the WWW is mostly represented in natural language, the available documents are only fully understandable by human beings. The Semantic Web is based on the content-oriented description of digital documents with standardized vocabularies that provide machine understandable semantics. The result is the transformation from a Web of Links into a Web of Meaning/Semantic Web [ ], (see arrow A in Fig. ). On the other hand, the traditional Web .0 has recently undergone an orthogonal shift into a Web of People/Web 2.0 where the focus is set on folksonomies, collective intelligence, and the wisdom of groups (see arrow B in Fig. ). Only the combined muscle of semantic web technologies and broad user participation will ultimately lead to a Web 3.0, with completely new business opportunities in all segments of the ITC market. Without Web 2.0 technologies and without activating the power of community-based semantic tagging, the emerging semantic web cannot be scaled and broadened to the level that is needed for a complete transformation of the current syntactic web. On the other hand, current Web 2.0 technologies cannot be used for automatic service composition and open domain query answering without adding machine-understandable content descriptions based on semantic web technologies. The ultimate worldwide knowledge infrastructure cannot be fully produced automatically but needs massive user participation based on open semantic platforms and standards. The interesting and urgent question that arises is: what happens when the emerging Semantic Web and Web 2.0 intersect with their full potential? We analyze this question throughout this feature paper and present the converging idea that we call Web 3.0. We use the following definition in this paper: Web 3.0 = Semantic Web + Web 2.0. A good example for developing Web 3.0 is the mobile personal information assistant (see Fig. 2). The user makes queries using natural language, and the assistant answers by extracting and combining information from the entire web, evaluating the information found while applying Semantic Web technologies. Today’s second-generation search engines are based on keywords within the syntactic web, while open domain question answering engines are based on information extraction and the Semantic Web.}, file = {TechnologyRadar2006web30.pdf:TechnologyRadar2006web30.pdf:PDF}, owner = {sauermann}, timestamp = {2006.11.17} }