Developing Digital Library Visual Services for Building a Lesson-Design Environment Prototype (2009)
O. Agapova, R. Mayer, T. Smith, A. S. Ushakov, A. A. Ushakov, Stefan Decker
In this paper we describe the development of a prototype for: (a) a digital library visual query and discovery results presentation services and (b) teacher-centered Web-enabled lesson-design...
Knud Möller, Er Schutz, Stefan Decker
When faced with the task of incorporating legacy web data from existing HTML pages into the Semantic Web (SW), a widespread approach is to use Information Extraction (IE) and Named Entity Recognition...
enVision: An integrated approach towards Semantic Authoring (2009)
Tudor Groza, Siegfried H, Stefan Decker
Writing is one of the most common activities of a researcher. And since, the writing process is not only about writing, but also about researching the background of the domain or collecting the...
SWSE: Objects before documents! (2009)
Andreas Harth, Aidan Hogan, Jürgen Umbrich, Stefan Decker
Abstract. Web search engines are immensly useful for locating documents online. However, with more and more structured data being published online, the restriction to the hyperdocument model impairs...
Four Heuristics to Guide Structured Content Crawling (2009)
Jürgen Umbrich, Andreas Harth, Aidan Hogan, Stefan Decker
Search engines focusing on particular media types face difficulties in discovering suitable URIs on the Web. Since the engines are only interested in a small fraction of the Web, a crawler should use...
Ontobroker: Transforming the WWW into a Knowledge Base (2009)
Dieter Fensel, Michael Erdmann, Stefan Decker, Rudi Studer
Abstract. The World Wide Web (WWW) could be viewed as the largest knowledge base that has ever existed. However, its support in automated inference is very limited. We propose formalized ontologies...
Simple Algorithms for Predicate Suggestions using Similarity and Co-Occurrence (2009)
Eyal Oren, Sebastian Gerke, Stefan Decker
Abstract When creating Semantic Web data, users have to make a critical choice for a vocabulary: only through shared vocabularies can meaning be established. A centralised policy prevents terminology...
Federating Distributed Social Data to Build an Interlinked Online Information Society (2009)
Passant, Alexandre, Samwald, Matthias, Breslin, John, Decker, Stefan
While research on relationships between the Semantic Web and Social Media has been originally motivated by the lack of semantics in mainstream Web 2.0 services, this vision can go far further,...
Identifier Deliverable 1.1, Chapter 1. Class Deliverable (2008)
Dieter Fensel, Enrico Motta, V. Richard Benjamins, Stefan Decker, Mauro Gaspari, Rix Groenboom, ...
Abstract. Problem-solving methods provide reusable architectures and components for implementing the reasoning part of knowledge-based systems. The Unified Problem-solving Method description Language...
ABSTRACT EDUTELLA: A P2P Networking Infrastructure Based on RDF (2008)
Wolfgang Nejdl, Boris Wolf, Changtao Qu, Stefan Decker, Ambjörn Naeve, Mikael Nilsson, ...
Metadata for the World Wide Web is important, but metadata for Peer-to-Peer (P2P) networks is absolutely crucial. In this paper we discuss the open source project Edutella which builds upon metadata...
Simple Algorithms for Predicate Suggestions using Similarity and Co-Occurrence (2008)
Eyal Oren, Sebastian Gerke, Stefan Decker
Abstract When creating Semantic Web data, users have to make a critical choice for a vocabulary: only through shared vocabularies can meaning be established. A centralised policy prevents terminology...
SALT- Semantically Annotated L ATEX for Scientific Publications (2008)
Tudor Groza, Siegfried H, Knud Möller, Stefan Decker
Abstract. Machine-understandable data constitutes the foundation for the Semantic Web. This paper presents a viable way for authoring and annotating Semantic Documents on the desktop. In our...
The State of the Art in Tag Ontologies (2008)
Kim, Hak Lae, Scerri, Simon, Breslin, John G., Decker, Stefan, Kim, Hong Gee
There is a growing interest into how we represent and share tagging data in collaborative tagging systems. Conventional tags, meaning freely created tags that are not associated with a structured...
The State of the Art in Tag Ontologies (2008)
Kim, Hak Lae, Scerri, Simon, Breslin, John G., Decker, Stefan, Kim, Hong Gee
There is a growing interest into how we represent and share tagging data in collaborative tagging systems. Conventional tags, meaning freely created tags that are not associated with a structured...
FOAFRealm: Making Social Collaborative Filtering Real (2008)
Sebastian Ryszard Kruk, Stefan Decker
Abstract. In the last couple of years several methods have been developed for ”collaborative filtering”. The most popular approaches to collaborative filtering require either a critical mass of...
Towards A Social Provenance Model for the Web (2008)
Andreas Harth, Axel Polleres, Stefan Decker
In this position paper we firstly present the established notion of provenance on the Semantic Web (also referred to as named graphs or contexts), and secondly argue for the benefit of adding to the...
Status Final Distribution Internal Lead Partner VUM (2008)
Ian Horrocks, Raphael Volz, Stefan Decker, Benjamin Grosof, Boris Motik, Identifier Del, ...
Version 1.0
SALT: Weaving the claim web (2008)
Tudor Groza, Knud Möller, Siegfried H, Diana Trif, Stefan Decker
Abstract. In this paper we present a solution for “weaving the claim web”, i.e. the creation of knowledge networks via so-called claims stated in scientific publications created with the SALT...
Semantic innovation management across the extended enterprise (2008)
Ke Ning, Qinxiang Zhu, Stefan Decker
Abstract: Innovation provides the means for enterprises to survive and grow. Due to the distributed and heterogeneous characteristics, it’s difficult to manage innovation across the extended...
Knud Möller, Er Schutz, Stefan Decker
Abstract. The internet as we know it today is based mainly on unstructured data, i.e. natural language text. While the information contained in these texts is accessible to human readers, it remains...
.QRZOHGJH (QJLQHHULQJ 6XUYH \ DQG)XWXUH 'LUHFWLRQV (2008)
Rudi Studer, Dieter Fensel, Stefan Decker, V. Richard Benjamins
$EVWUDFW This paper provides an overview of important developments in the field of Knowledge Engineering. We discuss the paradigm shift from a transfer to a modeling approach and discuss two...
ECDL 2000 Workshop on the Semantic Web An Extensible Approach for Modeling (2008)
Ontologies In Rdf(s, Steffen Staab, Michael Erdmann, Er Maedche, Stefan Decker
Abstract. RDF(S) 1 constitutes a newly emerging standard for metadata that is about to turn the World Wide Web into a machine-understandable knowledge base. It is an XML application that allows for...
Semantic Web and Databases: Relationships and some Open Problems (2008)
Abstract. In this position paper I describe the relationship of the database research field “semi-structured data ” to the Semantic Web, and describe two different yet unsolved problems. The...
Ian Horrocks, Frank Van Harmelen, Stefan Decker, Michael Erdmann, Michel Klein
A brief Introduction to OIL Abstract. Currently computers are changing from single isolated devices into entry points into a worldwide network of information exchange and business transactions....
Aidan Hogan, Andreas Harth, Jürgen Umbrich, Stefan Decker
Current search engines do not fully leverage semantically rich datasets, or specialise in indexing just one domainspecific dataset. We present a search engine that uses the RDF data model to enable...
KNOWLEDGE NETWORKING THE SEMANTIC WEB: The Roles of XML and RDF (2008)
Stefan Decker, Sergey Melnik, Frank Van Harmelen, Dieter Fensel, Michel Klein, Michael Erdmann, ...
XML and RDF are the current standards for establishing semantic interoperability on the Web, but XML addresses only document structure. RDF better facilitates interoperation because it provides a...
Dieter Fensel, Jürgen Angele, Stefan Decker, Michael Erdmann, Rudi Studer, Andreas Witt
Abstract. Ontobroker applies Artificial Intelligence techniques to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web or...
How to Use Ontobroker- Demonstration- (2008)
Stefan Decker, Michael Erdmann, Dieter Fensel, Rudi Studer
Abstract. The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its information retrieval mechanisms and the provided reasoning services are rather...
Social Networks and Data Portability using Semantic Web technologies (2008)
Bojars, Uldis, Breslin, John, Decker, Stefan
Social network and data portability has recently gained a lot of interest as one of the issues for social media sites on the Web. In this paper, we will show how Semantic Web technologies and...
ECDL 2000 Workshop on the Semantic Web An Extensible Approach for Modeling (2007)
Ontologies In Rdf(s, Steffen Staab, Michael Erdmann, Er Maedche, Stefan Decker
Abstract. RDF(S) 1 constitutes a newly emerging standard for metadata that is about to turn the World Wide Web into a machine-understandable knowledge base. It is an XML application that allows for...
Dieter Fensel, Jürgen Angele, Stefan Decker, Micael Erdmann, Hans-peter Schnurr, Rudi Studer, ...
Ontobroker applies Artificial Intelligence techniques to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web or...
Situation and Perspective of Knowledge Engineering (2007)
Rudi Studer, Stefan Decker, Dieter Fensel, Steffen Staab
Abstract. Knowledge Engineering was in the past primary concerned with building and developing knowledge-based systems, an objective which puts Knowledge
Demonstration Stefan Decker, Stefan Decker, Michael Erdmann, Dieter Fensel, Rudi Studer
. The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its information retrieval mechanisms and the provided reasoning services are rather limited....
W.: TRIPLE: A Logic for Reasoning with Parameterized Views over Semi-Structured Data (2007)
Stefan Decker, Michael Sintek, Wolfgang Nejdl, Dfki Gmbh Kaiserslautern
Abstract. In this paper we investigate and formalize parameterized views for semi-structured data by defining syntax and a model theoretic semantics of TRIPLE, a logic for dealing with views. A...
ABSTRACT EDUTELLA: A P2P Networking Infrastructure Based on RDF (2007)
Wolfgang Nejdl, Boris Wolf, Changtao Qu, Stefan Decker, Ambjörn Naeve, Mikael Nilsson, ...
Metadata for the World Wide Web is important, but metadata for Peer-to-Peer (P2P) networks is absolutely crucial. In this paper we discuss the open source project Edutella which builds upon metadata...
Wolfgang Nejdl, Mario Schlosser, Wolf Siberski, Martin Wolpers, Stefan Decker, Michael Sintek
Abstract Metadata for the World Wide Web are important, but metadata for Peer-to-Peer (P2P) networks are absolutely crucial. In this paper we discuss the open source project Edutella, which combines...
In this paper we investigate and formalize the notion of RDF Models (or context) for RDF data by defining syntax and a model theoretic semantics of TRIPLE, a logic for dealing with RDF and contexts....
Word Count: 5699 (including bibliography and appendix) (2007)
Steffen Staab, Michael Erdmann, Er Maedche, Stefan Decker
constitutes a newly emerging standard for metadata that is about to turn the World Wide Web into a machine-understandable knowledge base. It is an XML application that allows for the denotation of...
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner su#er from serious scalability problems,...
Jeen Broekstra, Michel Klein, Stefan Decker, Dieter Fensel, Frank Harmelen, Ian Horrocks
This URL will also contain a link to the author’s home page. The publishers will keep this article on-line on the Internet (or its possible replacement network in the future) for a period of 25...
KNOWLEDGE NETWORKING THE SEMANTIC WEB: The Roles of XML and RDF (2007)
Stefan Decker, Sergey Melnik, Frank Van Harmelen, Dieter Fensel, Michel Klein, Michael Erdmann, ...
XML and RDF are the current standards for establishing semantic interoperability on the Web, but XML addresses only document structure. RDF better facilitates interoperation because it provides a...
Stefan Decker, Dieter Fensel, Frank Van Harmelen, Sergey Melnik, Michel Klein, Jeen Broekstra
Exploiting the full potential of the World Wide Web will require semantic as well as syntactic interoperability. This can best be achieved by providing a further representation and inference layer...
Datum: 5.2.99 1 On2broker in a Nutshell (2007)
Dieter Fensel, Andreas Witt, Jrgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, ...
Abstract. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the...
Harold Boley, Stefan Decker, Michael Sintek
Increasing demand for formalized knowledge on the Web: AI's chance! XML-based markup languages provide a 'universal ' storage and interchange format for such Web-distributed knowledge...
ABSTRACT EDUTELLA: A P2P Networking Infrastructure Based on RDF (2007)
Networking Infrastructure Based, Wolfgang Nejdl, Boris Wolf, Changtao Qu, Stefan Decker, Ambjörn Naeve, ...
Metadata for the World Wide Web is important, but metadata for Peer-to-Peer (P2P) networks is absolutely crucial. In this paper we discuss the open source project Edutella which builds upon metadata...
Isabel F. Cruz, Vipul Kashyap, Stefan Decker, Rainer Eckstein, Olivier Bodenreider, Stéphane Bressan, ...
Proceedings of
ECDL 2000 Workshop on the Semantic Web An Extensible Approach for Modeling (2007)
Ontologies In Rdf(s, Steffen Staab, Michael Erdmann, Er Maedche, Stefan Decker
constitutes a newly emerging standard for metadata that is about to turn the World Wide Web into a machine-understandable knowledge base. It is an XML application that allows for the denotation of...
Ontobroker: the very high idea. (2007)
Fensel, Dieter, Decker, Stefan, Erdmann, Michael, Studer, Rudi
Ontobroker: or how to enable intelligent access to the WWW. (2007)
Fensel, Dieter, Decker, Stefan, Erdmann, Michael, Studer, Rudi
The technical core of Ontobroker [online]. (2007)
Decker, Stefan, Fensel, Dieter, Erdmann, Michael, Studer, Rudi
On2broker: lessons learned from applying AI to the web. (2007)
Fensel, Dieter, Angele, Jürgen, Decker, Stefan, Erdmann, Michael, Schnurr, Hans-Peter, Studer, Rudi, ...
Modeling problem-solving methods in new KARL. (2007)
Angele, Jürgen, Decker, Stefan, Perkuhn, Rainer, Studer, Rudi
Using ontologies for defining tasks, problem-solving methods and their mappings. (2007)
Fensel, Dieter, Motta, Enrico, Decker, Stefan, Zdrahal, Zdenek
Prof Dr, Stefan Decker, Eyal Oren, Prof Dr, Rudi Studer, ...
Ich erkläre hiermit, dass ich die vorliegende Diplomarbeit selbständig und ohne unerlaubte
SWSE: answers before links (2007)
Andreas Harth, Aidan Hogan, Renaud Delbru, Jürgen Umbrich, Stefan Decker
Abstract. We present a system that improves on current documentcentric Web search engine technology; adopting an entity-centric perspective, we are able to integrate data from both static and live...
Yars2: A federated repository for querying graph structured data from the web (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker
Abstract. We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from...
Yars2: A federated repository for querying graph structured data from the web (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker
Abstract. We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from...
YARS2: A Federated Repository for Searching and Querying Graph Structured Data. 2007 (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker, Andreas Harth, Jürgen Umbrich, ...
Abstract. We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from...
YARS2: A Federated Repository for Searching and Querying Graph Structured Data. 2007 (2007)
Andreas Harth, Jürgen Umbrich, Aidan Hogan, Stefan Decker, Andreas Harth, Jürgen Umbrich, ...
Abstract. We present the architecture of an end-to-end search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from many...
SWSE: answers before links (2007)
Andreas Harth, Aidan Hogan, Renaud Delbru, Jürgen Umbrich, Stefan Decker
Abstract. We present a system that improves on current documentcentric Web search engine technology; adopting an entity-centric perspective, we are able to integrate data from both static and live...
Social semantic collaborative filtering for digital libraries (2006)
Sebastian Ryszard Kruk, Stefan Decker, Adam Gzella, Slawomir Grzonkowski
Semantic wikis for personal knowledge management (2006)
Eyal Oren, Max Völkel, Stefan Decker
Abstract. Wikis are successful tools for collaborative information collection. Wikis are becoming popular knowledge management tools, but do not fully support the requirements for such tools, namely...
Renaud Delbru, Prof. Dr. Stefan Decker
ir. Eyal Oren, for their help and their excellent instructions throughout the internship. The author wants to thank DERI staff for their timely help. The author would also like to acknowledge all the...
Extending faceted navigation for RDF data (2006)
Eyal Oren, Renaud Delbru, Stefan Decker
Data on the Semantic Web is semi-structured and does not follow one fixed schema. Faceted browsing [23] is a natural technique for navigating such data, partitioning the information space into...
How Semantics Make Better Wikis (2006)
Eyal Oren, John G. Breslin, Stefan Decker
Wikis are popular collaborative hypertext authoring environments, but they neither support structured access nor information reuse. Adding semantic annotations helps to address these limitations. We...
Personal Knowledge Management, Eyal Oren, Max Völkel, John G. Breslin, Stefan Decker
Wikis are becoming popular knowledge management tools.
ReConRank: A Scalable Ranking Method for Semantic Web Data with Context (2006)
Aidan Hogan, Andreas Harth, Stefan Decker
Abstract. We present an approach that adapts the well-known PageRank/HITS algorithms to Semantic Web data. Our method combines ranks from the RDF graph with ranks from the context graph, i.e. data...
Multicrawler: A pipelined architecture for crawling and indexing semantic web data (2006)
Andreas Harth, Jürgen Umbrich, Stefan Decker
Abstract. The goal of the work presented in this paper is to obtain large amounts of semistructured data from the web. Harvesting semistructured data is a prerequisite to enabling large-scale query...
Extending faceted navigation for RDF data (2006)
Eyal Oren, Renaud Delbru, Stefan Decker
Abstract. Data on the Semantic Web is semi-structured and does not follow one fixed schema. Faceted browsing [23] is a natural technique for navigating such data, partitioning the information space...
Building a Heterogeneous Network of Digital Libraries on the Semantic Web (2006)
Piotrowski, Piotr, Cygan, Mariusz, Kruk, Sebastian Ryszard, Westerski, Adam, Samp, Krystian, Decker, Stefan
Ever since computer networks have become popular libraries tend to join into federations. Each federated digital library, apart from delivering discovery and navigation features within their own...
Investorspezifische Perfomancemessung für die Auswahl von Investmentfonds / (2005)
Zugl.: München, Universiẗat, Diss., 2005.
Semantic Social Collaborative Filtering with FOAFRealm (2005)
Sebastian Ryszard Kruk, Stefan Decker
Abstract. The most popular collaborative filtering implementations require either a critical mass of referenced resources and participating people or finding a referral with expertise in the field of...
1.4.3 Technical Reports (2005)
Knud Möller, Stefan Decker, John G. Breslin, Marco Neumann, Andreas Harth, Carlos F. Enguix
[11]
Harvesting Desktop Data for Semantic Blogging (2005)
Abstract. A typical computer user’s desktop contains large amount of formal data, such as addresses, events or bibliopraphies. Especially within a corporate or organizational environment, it is...
Harvesting Desktop Data for Semantic Blogging (2005)
Abstract. A typical computer user’s desktop contains large amount of formal data, such as addresses, events or bibliopraphies. Especially within a corporate or organizational environment, it is...
Optimized Index Structures for Querying RDF from the Web (2005)
Storing and querying Resource Description Framework (RDF) data is one of the basic tasks within any Semantic Web application. A number of storage systems provide assistance for this task. However,...
Towards Semantic Web Services in Grid Environments (2005)
Ioan Toma, Dumitru Roman, Kashif Iqbal, Jürgen Hofer, Dieter Fensel, Stefan Decker
Web services and Grid computing are technologies with a great impact these days. Both technologies are taking a syntactical based approach to describe services, and therefore, limited support is...
Semantic Social Collaborative Filtering with FOAFRealm (2005)
Sebastian Ryszard Kruk, Stefan Decker
Abstract. The most popular collaborative filtering implementations require either a critical mass of referenced resources and a lot of active users. Other solutions are based on finding a referral...
Description Logic Programs: Combining Logic Programs with Description Logic (2004)
Grosof, Benjamin, Horrocks, Ian, Volz, Raphael, Decker, Stefan
We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing...
Description Logic Programs: Combining Logic Programs with Description Logic (2004)
Grosof, Benjamin, Horrocks, Ian, Volz, Raphael, Decker, Stefan
We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing...
Online Social and Business Networking Communities (2004)
John G. Breslin, Stefan Decker
Abstract. The ability to send and retrieve information over the Web using traditional and ubiquitous computing methods has changed the way we work and live. Web portals, as content aggregators, act...
Argos: Dynamic composition of web services for goods movement analysis and planning (2004)
Jose Luis Ambite, Genevieve Giuliano, Peter Gordon, Andreas Harth, Lanlan Wang, Qisheng Pan, ...
This research will develop a flexible data query and analysis system based on the web services paradigm. As an application domain we will examine several goods movement planning problems and their...
www.deri.at This whitepaper we vision of a new group collaboration infrastructure, the Social Semantic Desktop, drawing from co-evolving research in the Semantic Web, Peer-to-Peer (P2P) Networks, and...
Argos: An Ontology and Web Service Composition (2004)
Infrastructure For Goods, José Luis Ambite, Genevieve Giuliano, Peter Gordon, Stefan Decker, Andreas Harth, ...
a integration and processing, instead of labor-intensive surveys. Second, many more questions can be posed and answered, since different data sources and data operations can be composed to derive a...
Argos: Dynamic Composition of Web Services for Goods Movement (2004)
Analysis And Planning, Jose Luis Ambite, Genevieve Giuliano, Peter Gordon, Andreas Harth, Lanlan Wang, ...
The second objective is to use Argos in an actual metropolitan planning application. In consultation with an advisory team of government representatives, a scenario analysis using the Los Angeles...
Towards Semantically-Interlinked Online (2004)
Communities John Breslin, John G. Breslin, Andreas Harth, Uldis Bojars, Stefan Decker
Online community sites have replaced the traditional means of keeping a community informed via libraries and publishing. At present, online communities are islands that are not interlinked. We...
José Luis Ambite, Genevieve Giuliano, Peter Gordon, Stefan Decker, Andreas Harth, Karanbir Jassar, ...
Many scientific problems can be modeled as computational workflows that integrate data from heterogeneous sources and process such data to derive new results. These data analysis problems are...
Argos: Dynamic composition of web services for goods movement analysis and planning (2004)
Jose Luis Ambite, Genevieve Giuliano, Peter Gordon, Andreas Harth, Lanlan Wang, Qisheng Pan, ...
This research will develop a flexible data query and analysis system based on the web services paradigm. As an application domain we will examine several goods movement planning problems and their...
www.deri.at Online Social and Business Networking Communities (2004)
John G. Breslin, Stefan Decker, John G. Breslin, Stefan Decker
Abstract. The ability to send and retrieve information over the Web using traditional and ubiquitous computing methods has changed the way we work and live. Web portals, as content aggregators, act...
Description Logic Programs: Combining Logic Programs with Description Logic (2003)
Grosof, Benjamin N., Horrocks, Ian, Volz, Raphael, Decker, Stefan
We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing...
Ontology-based Resource Matching in the Grid–The Grid meets the Semantic Web (2003)
Hongsuda Tangmunarunkit, Stefan Decker, Carl Kesselman
Abstract. The Grid is an emerging technology for enabling resource sharing and coordinated problem solving in dynamic multi-institutional virtual organizations. In the Grid environment, shared...
Ontology-based resource matching in the grid - the grid meets the semantic web (2003)
Hongsuda Tangmunarunkit, Stefan Decker, Carl Kesselman
Abstract. The Grid is an emerging technology for enabling resource sharing and coordinated problem solving in dynamic multi-institutional virtual organizations. In the Grid environment, shared...
with Description Logic ABSTRACT (2003)
Benjamin N. Grosof, Ian Horrocks, Raphael Volz, Stefan Decker, Benjamin N. Grosof, Raphael Volz
For more information, please visit our website at
Machine Learning Databases (2003)
Stefan Decker, Vipul Kashyap, Outline Day, John Godfrey Saxe
meaning or relationship of meanings, or relating to meaning … (Webster), – meaning and use of data (Information System) � Semantic Web: The Semantic Web is an extension of the current web in...
Ontology-based resource matching in the grid - the grid meets the semantic web (2003)
Hongsuda Tangmunarunkit, Stefan Decker, Carl Kesselman
Abstract. The Grid is an emerging technology for enabling resource sharing and coordinated problem solving in dynamic multi-institutional virtual organizations. In the Grid environment, shared...
Description logic programs: Combining logic programs with description logic (2003)
Benjamin N. Grosof, Raphael Volz, Ian Horrocks, Stefan Decker
We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing...
EDUTELLA: A P2P Networking Infrastructure Based on RDF (2002)
Nejdl, Wolfgang, Wolf, Boris, Qu, Changtao, Decker, Stefan, Sintek, Michael, Naeve, Ambjrn, ...
Metadata for the World Wide Web is important, but metadata for Peer-to-Peer (P2P) networks is absolutely crucial. In this paper we discuss the open source project Edutella which builds upon metadata...
The Unified Problem-solving Method Development Language UPML (2002)
Fensel, Dieter, Motta, Enrico, Benjamins, V. Richard, Crubezy, Monica, Decker, Stefan, Gaspari, Mauro, ...
Problem-solving methods provide reusable architectures and components for implementing the reasoning part of knowledge-based systems. The Unified Problem-solving Method description Language UPML has...
Semantic web methods for knowledge management / (2002)
Karlsruhe, Univ., Diss., 2002 (Nicht für den Austausch).
Zugl.: Bremen, Universiẗat, Diss., 2001.
HyperCuP - hypercubes, ontologies and efficient search on P2P networks (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner suffer from serious scalability problems,...
Edutella: A p2p networking infrastructure based on rdf (2002)
Michael Sintek, Michael Sintek, Michael Sintek, Tore Risch, Tore Risch, Tore Risch, ...
A Scalable and Ontology-based P2P Infrastructure for Semantic Web Services (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Semantic Web Services are a promising combination of Semantic Web and Web service technology, aiming at providing means of automatically executing, discovering and composing semantically marked-up...
HyperCuP - hypercubes, ontologies and efficient search on P2P networks (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner suffer from serious scalability problems,...
A Scalable and Ontology-based P2P Infrastructure for Semantic Web Services (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Semantic Web Services are a promising combination of Semantic Web and Web service technology, aiming at providing means of automatically executing, discovering and composing semantically marked-up...
HyperCuP/O – Shaping up peer-to-peer networks (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner suffer from serious scalability problems,...
EDUTELLA: A P2P networking infrastructure based on RDF (2002)
Wolfgang Nejdl, Boris Wolf, Changtao Qu, Stefan Decker, Michael Sintek, Ambjörn Naeve, ...
Metadata for the World Wide Web is important, but metadata for Peer-to-Peer (P2P) networks is absolutely crucial. In this paper we discuss the open source project Edutella which builds upon metadata...
A Scalable and Ontology-based P2P Infrastructure for Semantic Web Services (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Semantic Web Services are a promising combination of Semantic Web and Web service technology, aiming at providing means of automatically executing, discovering and composing semantically marked-up...
HyperCuP/O – Shaping up peer-to-peer networks (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner suffer from serious scalability problems,...
HyperCuP - hypercubes, ontologies and efficient search on P2P networks (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner suffer from serious scalability problems,...
HyperCuP - hypercubes, ontologies and efficient search on P2P networks (2002)
Mario Schlosser, Michael Sintek, Stefan Decker, Wolfgang Nejdl
Abstract. Peer-to-peer networks are envisioned to be deployed for a wide range of applications. However, P2P networks evolving in an unorganized manner suffer from serious scalability problems,...
Enabling Knowledge Representation on the Web by Extending RDF Schema (2001)
Broekstra, Jeen, Klein, Michel, Decker, Stefan, Fensel, Dieter, Van Harmelen, Frank, Horrocks, Ian
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for expressing metadata...
Enabling knowledge representation on the web by extending rdf schema (2001)
Jeen Broekstra, Michel Klein, Stefan Decker, Dieter Fensel, Frank Van Harmelen, Ian Horrocks
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for expressing metadata...
On the Integration of Topic Maps and RDF Data (2001)
Martin S. Lacher, Stefan Decker, Stefan Decker
Topic Maps and RDF are two independently developed paradigms and standards for the representation, interchange, and exploitation of data or metadata about information resources. Each paradigm has...
Creating semantic web contents with (2001)
Natalya F. Noy, Michael Sintek, Stefan Decker, Monica Crubézy, Ray W. Fergerson, Mark A. Musen
T h e S e m a n t i c W e b As researchers continue to create new languages in the hope of developing a Semantic Web, they still lack consensus on a standard. The authors describe how...
Creating semantic web contents with (2001)
Natalya F. Noy, Michael Sintek, Stefan Decker, Monica Crubézy, Ray W. Fergerson, Mark A. Musen
T h e S e m a n t i c W e b As researchers continue to create new languages in the hope of developing a Semantic Web, they still lack consensus on a standard. The authors describe how...
Enabling knowledge representation on the web by extending rdf schema (2001)
Jeen Broekstra, Michel Klein, Stefan Decker, Dieter Fensel, Frank Van Harmelen, Ian Horrocks
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for expressing metadata...
Enabling knowledge representation on the web by extending rdf schema (2001)
Jeen Broekstra, Ý Michel Klein, Stefan Decker, Dieter Fensel, Ian Horrocks
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for expressing metadata...
Enabling knowledge representation on the web by extending rdf schema (2001)
Jeen Broekstra, Michel Klein, Stefan Decker, Dieter Fensel, Frank Van Harmelen, Ian Horrocks
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for express-ing metadata...
TRIPLE—An RDF query, inference, and transformation language (2001)
Michael Sintek, Dfki Gmbh, Stefan Decker
This paper presents TRIPLE, a layered and modular rule language for the semantic web [1]. TRIPLE is based on Horn logic and borrows many basic features from F-Logic [9] but is especially designed for...
Creating semantic web contents with (2001)
Natalya F. Noy, Michael Sintek, Stefan Decker, Monica Crubézy, Ray W. Fergerson, Mark A. Musen
T h e S e m a n t i c W e b As researchers continue to create new languages in the hope of developing a Semantic Web, they still lack consensus on a standard. The authors describe how...
Linkoping Sweden Http, Jeen Broekstra, Michel Klein, Stefan Decker, Dieter Fensel, Frank Harmelen, ...
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for expressing metadata...
A Scalable Framework for the Interoperation of Information Sources (2001)
Prasenjit Mitra, Gio Wiederhold, Stefan Decker
Resolving heterogeneity among information systems is a crucial necessity if we wish to gain value from the many distributed resources available to us. Problems of heterogeneity in hardware, operating...
OntoWebber: Model-Driven Ontology-Based Web Site Management (2001)
Yuhui Jin, Stefan Decker, Gio Wiederhold
Abstract. Building data-intensive Web sites and especially Web portals is a costly task, which requires considerable effort for data integration and maintenance and usually does not result in many...
Approximate Word Count: 8500 (2001)
Wolfgang Nejdl, Boris Wolf, Changtao Qu, Stefan Decker, Michael Sintek, Ambjörn Naeve, ...
Metadata for the World Wide Web is important, but metadata for Peer-to-Peer (P2P) networks is absolutely crucial. In this paper we discuss the open source project Edutella which builds upon metadata...
Experiments and demos: Topic map of World Fact Book and Open Directory (2001)
Montréal Québec, Martin S. Lacher, Stefan Decker
Topic maps and RDF; Tool/implementation: RDF adapter for Topic maps;
The Semantic Web: The roles of XML and RDF (2000)
Decker, Stefan, Melnik, Sergey, Harmelen, Frank Van, Fensel, Dieter, Klein, Michel, Broekstra, Jeen, ...
Until now, the
An information food chain for advanced applications on the www (2000)
Stefan Decker, Jan Jannink, Prasenjit Mitra, Gio Wiederhold, Steffen Staab, Rudi Studer
The Internet and especially the World Wide Web are growing at a tremendous rate. More and more information is becoming directly available for human consumption. But humans have a limited information...
Knowledge representation on the web (2000)
Stefan Decker, Dieter Fensel, Frank Van Harmelen, Ian Horrocks, Sergey Melnik, Michel Klein, ...
The World Wide Web has been made possible through a set of widely established standards which guarantee interoperability at various levels: the TCP/IP protocol has ensured that now nobody has to...
Knowledge Representation on the Web (2000)
Stefan Decker, Dieter Fensel, Frank Van Harmelen, Ian Horrocks, Sergey Melnik, Michel Klein, ...
Exploiting the full potential of the World Wide Web will require semantic as well as syntactic interoperability. This can best be achieved by providing a further representation and inference layer...
Knowledge Representation on the Web (2000)
Stefan Decker, Dieter Fensel, Frank Van Harmelen, Ian Horrocks, Sergey Melnik, Michel Klein, ...
this paper, we make the following claims:
The Semantic Web - on the respective Roles of XML and RDF (2000)
Stefan Decker, Frank Van Harmelen, Jeen Broekstra, Michael Erdmann, Dieter Fensel, Ian Horrocks, ...
The next generation of the Web is often characterized as the "Semantic Web": information will no longer only be intended for human readers, but also for processing by machines, enabling...
Adding formal semantics to the Web Building on top of RDF Schema (2000)
Jeen Broekstra, Michel Klein, Stefan Decker, Dieter Fensel, Ian Horrocks
RDF Schema provides means to define vocabulary, structure and constraints for expressing metadata about Web resources. However, formal semantics for the primitives defined in RDF Schema are not...
The Semantic Web: The Roles of XML and RDF (2000)
Stefan Decker, Sergey Melnik, Frank Van Harmelen, Dieter Fensel, Michel Klein, Jeen Broekstra, ...
this article, we explain the role of ontologies in the architecture of the Semantic Web. We then briefly summarize key elements of XML and RDF, showing why using XML as a tool for semantic...
Situation and Perspective of Knowledge Engineering (2000)
Rudi Studer, Stefan Decker, Dieter Fensel, Steffen Staab
. Knowledge Engineering was in the past primarily concerned with building and developing knowledge-based systems, an objective which puts Knowledge Engineering in a niche of the world-wide research...
An Information Food Chain for Advanced Applications on the WWW (2000)
Stefan Decker, Jan Jannink, Prasenjit Mitra, Gio Wiederhold, Steffen Staab, Rudi Studer
The Internet and especially the World Wide Web are growing at a tremendous rate. More and more information is becoming directly available for human consumption. But humans have a limited information...
An Extensible Approach for Modeling Ontologies in RDF(S) (2000)
Steffen Staab, Michael Erdmann, Alexander Mädche, Er Maedche, Stefan Decker
. RDF(S) 1 constitutes a newly emerging standard for metadata that is about to turn the World Wide Web into a machine-understandable knowledge base. It is an XML application that allows for the...
AI for the Web - Ontology-based Community Web Portals (2000)
Steffen Staab, Jürgen Angele, Stefan Decker, Michael Erdmann, Andreas Hotho, Alexander Maedche, ...
Community web portals serve as portals for the information needs of particular communities on the web. We here discuss how a comprehensive, ontology-based approach for building and maintaining a...
Ontobroker in a Nutshell (2000)
Stefan Decker, Michael Erdmann, Dieter Fensel, Rudi Studer
The World Wide Web (WWW) provides huge amounts of information in informal and semi-structured representations. This is one of the key factors that enabled its incredible success story. The...
Dieter Fensel, Andreas Witt, Jürgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, ...
Abstract. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the...
Steffen Staab, Michael Erdmann, Er Maedche, Stefan Decker
Abstract. RDF(S) 1 constitutes a newly emerging standard for metadata that is about to turn the World Wide Web into a machine-understandable knowledge base. It is an XML application that allows for...
The semantic web - on the respective roles of XML and RDF (2000)
Stefan Decker, Frank Van Harmelen, Jeen Broekstra, Michael Erdmann, Dieter Fensel, Ian Horrocks, ...
Harold Boley, Stefan Decker, Michael Sintek
Increasing demand for formalized knowledge on the Web: AI’s chance! XML-based markup languages provide a ’universal ’ storage and interchange format for such Web-distributed knowledge...
Huser, Sonja., Decker, Stefan.
Erscheinungsjahr auf Haupttitels.: 1998
On2broker: Semantic-based access to information sources at the www (1999)
Dieter Fensel, Jrgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, Steffen Staab, ...
Abstract. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the...
The Unified Problem-solving Method Development Language UPML (1999)
Dieter Fensel, Enrico Motta, V. Richard Benjamins, Monica Crubezy, Stefan Decker, Mauro Gaspari, ...
developed to describe and implement such architectures and components to facilitate their semiautomatic reuse and adaptation. In a nutshell, UPML is a framework for developing knowledge-intensive...
On2broker: Semantic-based access to information sources at the WWW (1999)
Dieter Fensel Jrgen, Dieter Fensel, Jrgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, ...
. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the use of...
The Component Model Of Upml In A Nutshell (1999)
Dieter Fensel Richard, V. Richard Benjamins, Stefan Decker, Mauro Gaspari, Rix Groenboom, William Grosso, ...
. Problem-solving methods provide reusable architectures and components for implementing the reasoning part of knowledge-based systems. The Unified Problem-solving Method description Language UPML...
(KA)²: Building Ontologies for the Internet: a Mid Term Report (1999)
V. Richard Benjamins, Dieter Fensel, Stefan Decker
Ontologies are becoming increasingly more important in many different areas, including the knowledge management area. In knowledge management, ontologies can be used as an instrument to make...
On2broker in a Nutshell (1999)
Dieter Fensel Andreas, Andreas Witt, Jrgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, ...
. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the use of...
On2broker: Semantic-Based Access to Information Sources at the WWW (1999)
Dieter Fensel, Jürgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, Steffen Staab, ...
On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the use of...
The Component Model Of Upml In A Nutshell (1999)
Dieter Fensel, Richard Benjamins, Stefan Decker, Mauro Gaspari, Rix Groenboom, William Grosso, ...
. Problem-solving methods provide reusable architectures and components for implementing the reasoning part of knowledge-based systems. The Unified Problem-solving Method description Language UPML...
On2broker in a Nutshell (1999)
Dieter Fensel, Andreas Witt, Jürgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, ...
. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the use of...
On2broker: Semantic-Based Access to Information Sources at the WWW (1999)
Dieter Fensel, Jürgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, Steffen Staab, ...
. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web. It relies on the use of...
On2broker: Semantic-based access to information sources at the www (1999)
Dieter Fensel, Jürgen Angele, Stefan Decker, Michael Erdmann, Hans-peter Schnurr, Steffen Staab, ...
Abstract. On2broker provides brokering services to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide
Ontobroker: Ontology based access to distributed and semi-structured information (1999)
Stefan Decker, Michael Erdmann, Dieter Fensel, Rudi Studer
Abstract. The World Wide Web (WWW) can be viewed as the largest multimedia database that has ever existed. However, its support for query answering and automated inference is very limited. Metadata...
The Unified Problem-solving Method Development Language UPML (1999)
Dieter Fensel, Enrico Motta, V. Richard Benjamins, Monica Crubezy, Stefan Decker, Mauro Gaspari, ...
developed to describe and implement such architectures and components to facilitate their semiautomatic reuse and adaptation. In a nutshell, UPML is a framework for developing knowledge-intensive...
...
Ontobroker: the very high idea. (1998)
Fensel, Dieter, Decker, Stefan, Erdmann, Michael, Studer, Rudi
Ontobroker: or how to enable intelligent access to the WWW. (1998)
Fensel, Dieter, Decker, Stefan, Erdmann, Michael, Studer, Rudi
The technical core of Ontobroker [online]. (1998)
Decker, Stefan, Fensel, Dieter, Erdmann, Michael, Studer, Rudi
On2broker: lessons learned from applying AI to the web. (1998)
Fensel, Dieter, Angele, Jürgen, Decker, Stefan, Erdmann, Michael, Schnurr, Hans-Peter, Studer, Rudi, ...
On domain-specific declarative knowledge representation and database languages (1998)
For knowledge acquisition and engineering tasks many logic based representations formalisms are available nowadays. However, most of them do not support the elicitation and representation of domain...
Ontobroker: How to make the www intelligent (1998)
Dieter Fensel, Stefan Decker, Michael Erdmann, Rudi Studer
Abstract. The World Wide Web can be viewed as the largest knowledge base that has ever existed. However, its support in query answering and automated inference is very limited. We propose formalized...
Ontobroker: Ontology based Access to Distributed and Semi-Structured Information (1998)
Stefan Decker, Michael Erdmann, Dieter Fensel, Rudi Studer
. The World Wide Web (WWW) can be viewed as the largest multimedia database that has ever existed. However, its support for query answering and automated inference is very limited. Metadata and...
Ontobroker: Or How to Enable Intelligent Access to the WWW (1998)
Dieter Fensel Stefan, Stefan Decker, Michael Erdmann, Rudi Studer
. The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its query interfaces and the provided reasoning services are rather limited. Ontobroker...
On Domain-Specific Declarative Knowledge Representation Languages (1998)
For todays knowledge acquisition and engineering tasks many logic based representations formalisms are available. However, most of them do not support the elicitation and representation of domain...
Ontobroker: The Very High Idea (1998)
Dieter Fensel, Stefan Decker, Michael Erdmann, Rudi Studer
The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its query interfaces and the provided reasoning services are rather limited. Ontobroker...
Ontobroker in a Nutshell (1998)
Stefan Decker, Michael Erdmann, Dieter Fensel, Rudi Studer
r selecting classes and attributes from the ontology. To allow the selection of classes, the ontology has to be presented in an appropriate Fig. 1. The tabular query interface of Ontobroker. manner....
Ontobroker: Or How to Enable Intelligent Access to the WWW (1998)
Dieter Fensel, Stefan Decker, Michael Erdmann, Rudi Studer
. The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its query interfaces and the provided reasoning services are rather limited. Ontobroker...
Ontobroker: The Very High Idea (1998)
Dieter Fensel Stefan, Stefan Decker, Michael Erdmann, Rudi Studer
The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its query interfaces and the provided reasoning services are rather limited. Ontobroker...
Ontobroker: How to Enable Intelligent Access to the WWW (1998)
Dieter Fensel, Stefan Decker, Michael Erdmann, Rudi Studer
. The World Wide Web (WWW) is currently one of the most important electronic information sources. However, its query interfaces and the provided reasoning services are rather limited. Ontobroker...
IBROW3 - An Intelligent Brokering Service for Knowledge-Component Reuse on the World-Wide Web (1998)
V. Richard Benjamins, Enric Plaza, Enrico Motta, Dieter Fensel, Rudi Studer, Bob Wielinga, ...
Data Types Wirsing, 1990. If we want to exchange our problem-solving methods with other groups, then we have to build a wrapper. A KIF wrapper (Knowledge Interchange Format) Gruber, 1993, Genesereth...
Towards an Enterprise Reference Scheme for Building Knowledge Management Systems (1998)
The value of the knowledge incorporated in an enterprise is more and more recognized and enterprises are defining knowledge management strategies to capitalize this assets. But up to now there is...
IBROW3 - An Intelligent Brokering Service for Knowledge-Component Reuse on the World-Wide Web (1998)
V. Richard Benjamins, Stefan Decker, Dieter Fensel, Enrico Motta, Enric Plaza, Guus Schreiber, ...
. The World-Wide Web is changing the nature of software development to a distributive plug & play process. This requires a new way of managing software by so-called intelligent software brokers....
Using ontologies for defining tasks, problem-solving methods and their mappings. (1997)
Fensel, Dieter, Motta, Enrico, Decker, Stefan, Zdrahal, Zdenek
Stefan Decker, Manfred Daniel, Michael Erdmann, Rudi Studer
In recent years the demand on business process modelling (BPM) became apparent in many different communities. To provide a unifying framework for different needs on enterprise modelling we define an...
Stefan Decker, Manfred Daniel, Michael Erdmann, Rudi Studer
this paper is partially supported by the BMBF (German Ministry of Education, Science, Research and Technology) under grant number 01HS014. 2 processes, that are executed in a software system)....
Modeling problem-solving methods in new KARL. (1996)
Angele, Jürgen, Decker, Stefan, Perkuhn, Rainer, Studer, Rudi
Modeling problem-solving methods in new karl (1996)
Juergen Angele, Stefan Decker, Rainer Perkuhn, Rudi Studer
New KARL (Knowledge Acquisition and Representation Language) allows to specify all parts of a problem-solving method (PSM). It is a formal language with a welldefined semantics and thus allows to...
A Unifying View on Business Process Modelling and Knowledge Engineering (1996)
Stefan Decker, Michael Erdmann, Rudi Studer
Recently the demand on business process modelling (BPM) became apparent in many different communities. To provide a unifying framework we propose an approach to integrate (well known) knowledge...
Description Logic Programs: Combining Logic Programs with Description Logic
Grosof, Benjamin, Horrocks, Ian, Volz, Raphael, Decker, Stefan
We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing...
On2broker: Lessons Learned from Applying AI to the Web
Dieter Fensel, Jürgen Angele, Stefan Decker, Michael Erdmann, Hans-Peter Schnurr, Rudi Studer, ...
. Ontobroker applies Artificial Intelligence techniques to improve access to heterogeneous, distributed and semistructured information sources as they are presented in the World Wide Web or...
Ontobroker: Transforming the WWW into a Knowledge Base
Dieter Fensel Michael, Michael Erdmann, Stefan Decker, Rudi Studer
. The World Wide Web (WWW) could be viewed as the largest knowledge base that has ever existed. However, its support in automated inference is very limited. We propose formalized ontologies as means...
Organizational Memory: Knowledge Acquisition, Integration, and Retrieval Issues
Andreas Abecker, Stefan Decker
. The demand on Knowledge Management in the management and business sciences has lead to a growing community of IT people who have adopted the idea of building organizational memories or...
Ontobroker: Transforming the WWW into a Knowledge Base
Dieter Fensel, Michael Erdmann, Stefan Decker, Rudi Studer
. The World Wide Web (WWW) could be viewed as the largest knowledge base that has ever existed. However, its support in automated inference is very limited. We propose formalized ontologies as means...
Ontobroker: Transforming the WWW into a Knowledge Base
Dieter Fensel, Stefan Decker, Michael Erdmann, Rudi Studer
. The World Wide Web (WWW) can be viewed as the largest knowledge base that has ever existed. However, its support in automated inference is very limited. We propose formalized ontologies as means to...
The Technical Core of Ontobroker
Stefan Decker, Dieter Fensel, Michael Erdmann, Rudi Studer
. The World Wide Web can be viewed as the largest knowledge base that has ever existed. However, its support in query answering and automated inference is very limited. Therefore we developed...