Evaluating Similarity Measures for Emergent Semantics of Social Tagging (2009)
Benjamin Markines, Ciro Cattuto, Dominik Benz, Andreas Hotho, Gerd Stumme
Social bookmarking systems and their emergent information structures, known as folksonomies, are increasingly important data sources for Semantic Web applications. A key question for harvesting...
Luke Liming Chen, Peter Haase, Andreas Hotho, Ernie Ong, Iswc Sponsor, Gold Sponsor, ...
The Semantic Web and collaborative tagging are two complementary approaches aiming at making information search, retrieval, navigation and knowledge discovery easier. While the Semantic Web enforces...
Boris Lauser, Und Formale Beschreibungsverfahren, Referent Prof, Dr. Rudi Studer, Betreuer Raphael Volz, Andreas Hotho
Diplomarbeit Semi-automatic ontology engineering and ontology supported document indexing in a multilingual environment Heimatanschrift:
Organizing Publications and Bookmarks in BibSonomy ABSTRACT (2008)
Robert Jäschke, A Grahl, Andreas Hotho, Beate Krause, Christoph Schmitz, Gerd Stumme, ...
BibSonomy is a web-based social resource sharing system which allows users to organise and share bookmarks and publications in a collaborative manner. Apart from standard folksonomy features such as...
Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies (2008)
Andreas Hotho, Gerd Stumme, Julien Tane
Abstract. Among many other knowledge representations formalisms, Ontologies and Formal Concept Analysis (FCA) aim at modeling ‘concepts’. We discuss how these two formalisms may complement...
Semantic Analysis of Tag Similarity Measures in Collaborative Tagging Systems (2008)
Cattuto, Ciro, Benz, Dominik, Hotho, Andreas, Stumme, Gerd
Social bookmarking systems allow users to organise collections of resources on the Web in a collaborative fashion. The increasing popularity of these systems as well as first insights into their...
Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies (2008)
Andreas Hotho, Gerd Stumme, Julien Tane
Abstract. Among many other knowledge representations formalisms, Ontologies and Formal Concept Analysis (FCA) aim at modeling ‘concepts’. We discuss how these two formalisms may complement...
Gerd Stumme, Andreas Hotho, Bettina Berendt
Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. This survey analyzes the convergence of trends from both areas: an increasing number of...
ABSTRACT Network Properties of Folksonomies (2008)
Christoph Schmitz, Miranda Grahl, Andreas Hotho, Gerd Stumme, Ciro Cattuto, Andrea Baldassarri, ...
Social resource sharing systems like YouTube and del.icio.us have acquired a large number of users within the last few years. They provide rich resources for data analysis, information retrieval, and...
� Formal Model • Mining Association Rules (2008)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme, Ranking Folkrank
Chapter 1 Usage Mining for and on the Semantic Web (2008)
Gerd Stumme, Andreas Hotho, Bettina Berendt
Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. Web Mining aims at discovering insights about the meaning of Web resources and their usage....
Aon Chinatsu Aone, Lauren Halverson, Tom Hampton, Mila Ramos-santacruz, Ass Fidelis Assis, William Yerazunis, ...
[Bag97] Amit Bagga and Joyce Yue Chai. A trainable message understanding system. In
Bettina Berendt, Andreas Hotho, Gerd Stumme, Bettina Berendt, Andreas Hotho, Gerd Stumme
Abstract. Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. This survey analyzes the convergence of trends from both areas: Growing numbers of...
An Ontology-based framework for text mining (2008)
Stephan Bloehdorn, Andreas Hotho, Steffen Staab
Structuring of text document knowledge frequently appears either by ontologies and metadata or by automatic (un-)unsupervised text categorization. This paper describes our integrated framework OTTO...
Bettina Berendt, Andreas Hotho, Ernestina Menasalvas, Bamshad Mobasher, Myra Spiliopoulou, Gerd Stumme, ...
3 Agenda
Chapter 1 Usage Mining for and on the Semantic Web (2008)
Bettina Berendt, Gerd Stumme, Andreas Hotho
Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web mining. Web mining aims at discovering insights about the meaning of Web resources and their usage....
Using Focus Maps to Ease Map Reading 35 (2008)
Markus Knauff, Christian Freksa, Steffen Werner, Bernhard Neb El, Er Scivos, ...
Spatial cognition r esearch is making rapid progress in understanding the acquisition, organization, utilization, and r evision of knowledge ab out spatial environments, b e it real or abstract,...
Abstract Usage-driven Evolution of Personal Ontologies (2008)
Andreas Hotho, Lars Schmidt-thieme
Large information repositories as digital libraries, online shops, etc. rely on a taxonomy of the objects under consideration to structure the vast contents and facilitate browsing and searching...
Analyzing Tag Semantics Across Collaborative Tagging Systems (2008)
Benz, Dominik, Grobelnik, Marko, Hotho, Andreas, Jaschke, Robert, Mladenic, Dunja, Servedio, Vito D. P., ...
The objective of our group was to exploit state-of-the-art Information Retrieval methods for finding associations and dependencies between tags, capturing and representing differences in tagging...
08391 Working Group Summary -- Analyzing Tag Semantics Across Tagging Systems (2008)
Benz, Dominik, Grobelnik, Marko, Hotho, Andreas, Jäschke, Robert, Mladenic, Dunja, Servedio, Vito D. P., ...
The objective of our group was to exploit state-of-the-art Information Retrieval methods for finding associations and dependencies between tags, capturing and representing differences in tagging...
Organization Workshop Organizers (2008)
Stephan Bloehdorn, Marko Grobelnik, Peter Mika, Thanh Tran Duc, Bettina Berendt, Paul Buitelaar, ...
International Workshop located at the
Research challenges in ubiquitous knowledge discovery (2008)
May, Michael, Cornuejols, A, Gama, Joao, Giannotti, Fosca, Hotho, Andreas, ...
Automatic multi-label subject indexing in a (2007)
multilingual environment
Building and Using the Semantic Web (2007)
Rudi Studer, Gerd Stumme, Siegfried H, Andreas Hotho, Boris Motik
www.ontoprise.de The development of the Semantic Web is still in its early phase when compared to the success story of the World Wide Web during the last decade. On the one hand, this is due to the...
Andreas Hotho, Andreas Hotho, Steffen Staab, Steffen Staab, Gerd Stumme, Gerd Stumme
Abstract. Text document clustering plays an important role in providing intuitive navigation and browsing mechanisms by organizing large amounts of information into a small number of meaningful...
Automatic Multi-label Subject Indexing in a Multilingual Environment (2007)
Abstract. This paper presents an approach to automatically subject index fulltext documents with multiple labels based on binary support vector machines (SVM). The aim was to test the applicability...
Tag recommendations in folksonomies (2007)
Robert Jäschke, Ro Marinho, Andreas Hotho, Lars Schmidt-thieme, Gerd Stumme
Collaborative tagging systems allow users to assign keywords—so called “tags”—to resources. Tags are used for navigation, finding resources and serendipitous browsing and thus provide an...
Tag recommendations in folksonomies (2007)
Robert Jäschke, Ro Marinho, Andreas Hotho, Lars Schmidt-thieme, Gerd Stumme
Abstract. Collaborative tagging systems allow users to assign keywords—so called “tags”—to resources. Tags are used for navigation, finding resources and serendipitous browsing and thus...
Johanna Völker, Denny Vr, York Sure, Andreas Hotho
Abstract. An increasing number of applications benefits from light-weight ontologies, or to put it differently “a little semantics goes a long way”. However, our experience indicates that more...
Network properties of folksonomies (2007)
Schmitz, Christoph, Grahl, Miranda, Hotho, Andreas, Stumme, Gerd, Cattuto, Ciro, Baldassarri, Andrea, ...
Auch erschienen in: Proceedings. WWW2007 Workshop "Tagging and Metadata for Social Information Organization". Banff, 2007.
Network properties of folksonomies (2007)
Cattuto, Ciro, Schmitz, Christoph, Baldassarri, Andrea, Servedio, Vito D. P., Loreto, Vittorio, Hotho, Andreas, ...
Auch erschienen in: AI Communications. Amsterdam : IOP Press, 2007, Vol. 20, 4, S. 245-262. ISSN 0921-7126
Network properties of folksonomies (2007)
Schmitz, Christoph, Grahl, Miranda, Hotho, Andreas, Stumme, Gerd, Cattuto, Ciro, Baldassarri, Andrea, ...
Auch erschienen in: Proceedings. WWW2007 Workshop "Tagging and Metadata for Social Information Organization". Banff, 2007.
Network properties of folksonomies (2007)
Cattuto, Ciro, Schmitz, Christoph, Baldassarri, Andrea, Servedio, Vito D. P., Loreto, Vittorio, Hotho, Andreas, ...
Auch erschienen in: AI Communications. Amsterdam : IOP Press, 2007, Vol. 20, 4, S. 245-262. ISSN 0921-7126
From Web to Social Web: discovering and deploying user and content profiles (2007)
Hotho, Andreas, Mladenic, Dunja, Semeraro, Giovanni
This book constitutes the refereed proceedings of the Workshop on Web Mining, WebMine 2006, held in Berlin, Germany, September 2006. Topics included are data mining based on analysis of bloggers and...
Trend detection in folksonomies (2006)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
Abstract. As the number of resources on the web exceeds by far the number of documents one can track, it becomes increasingly difficult to remain up to date on ones own areas of interest. The problem...
BibSonomy: A social bookmark and publication sharing system (2006)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
Abstract. Social bookmark tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. The reason for their immediate success is...
3rd International Workshop on Text-Based Information Retrieval (2006)
Benno Stein, Odej Kao, Odej Kao, Michael Granitzer, Heiko Holzheuer, Lycos Europe, ...
Intelligent technologies for information mining and retrieval have become an important and exciting field of research in our information-flooded society. Methods of text-based information retrieval...
Information retrieval in folksonomies: Search and ranking (2006)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
Abstract. Social bookmark tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. The reason for their immediate success is...
Learning in Web Search Guest Editors: (2006)
Stephan Bloehdorn, Wray Buntine, Andreas Hotho, Anton P. Železnikar
Informatica is a journal primarily covering the European computer science and informatics community; scientific and educational as well as technical, commercial and industrial. Its basic aim is to...
Information retrieval in folksonomies: Search and ranking (2006)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
Abstract. Social bookmark tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. The reason for their immediate success is...
Mining association rules in folksonomies (2006)
Christoph Schmitz, Andreas Hotho, Robert Jäschke, Gerd Stumme
Abstract. Social bookmark tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. These systems provide currently relatively...
Folkrank: A ranking algorithm for folksonomies (2006)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
In social bookmark tools users are setting up lightweight conceptual structures called folksonomies. Currently, the information retrieval support is limited. We present a formal model and a new...
Content Aggregation on Knowledge Bases using Graph Clustering (2006)
Christoph Schmitz, Andreas Hotho, Robert Jäschke, Gerd Stumme
Abstract. Recently, research projects such as PADLR and SWAP have developed tools like Edutella or Bibster, which are targeted at establishing peer-to-peer knowledge management (P2PKM) systems. In...
Semantic Network Analysis of Ontologies (2006)
Bettina Hoser, Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
Abstract. A key argument for modeling knowledge in ontologies is the easy re-use and re-engineering of the knowledge. However, beside consistency checking, current ontology engineering tools provide...
G.: Emergent semantics in Bibsonomy (2006)
Andreas Hotho, Robert Jäschke, Christoph Schmitz, Gerd Stumme
Abstract: Social bookmark tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. The reason for their immediate success is...
Mining association rules in folksonomies (2006)
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd
Auch erschienen in: Batagelj, Vladimir u.a. (Hrsg.): Data science and classification. (Studies in classification, data analysis, and knowledge organization). Berlin u.a. : Springer, 2006. S. 261-270....
Kollaboratives Wissensmanagement (2006)
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd
Auch erschienen in: Pellegrini, Tassilo u.a. (Hrsg.): Semantic web. Berlin u.a. : Springer, 2006. S. 273-290. ISBN 3-540-29324-8 - 978-3-540-29324-8 (The original publication is available at...
BibSonomy: a social bookmark and publication sharing system (2006)
Hotho, Andreas, Jäschke, Robert, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Moor, Aldo de u.a. (Hrsg.): Proceedings of the First Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures. Aalborg :...
Stumme, Gerd, Hotho, Andreas, Berendt, Bettina
Auch erschienen in: Journal of web semantics. Amsterdam : Elsevier, 4 (2006), Nr. 2, S. 124-143. ISSN 1570-8268
Wege zur Entdeckung von Communities in Folksonomies (2006)
Jäschke, Robert, Hotho, Andreas, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Braß, Stefan u.a. (Hrsg.): 18. Workshop "Grundlagen von Datenbanken", Wittenberg Juni 2006. Halle-Wittenberg : Martin-Luther-Universität, 2006. S. 80-84
Trend detection in folksonomies (2006)
Hotho, Andreas, Jäschke, Robert, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Avrithis, Yannis u.a. (Hrsg.): Semantic multimedia. (Lecture notes in computer science ; 4306). Berlin u.a. : Springer, 2006. S. 56-70. ISBN 3-540-49335-2 = 978-3-540-49335-8 (The...
Content aggregation on knowledge bases using graph clustering (2006)
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd
Auch erschienen in: Sure, York u.a. (Hrsg.): The semantic web. (Lecture notes in computer science ; 4011). Berlin u.a. : Springer, 2006. S. 530-544. ISBN 3-540-34544-2 = 978-3-540-34544-2 (The...
Semantic network analysis of ontologies (2006)
Hoser, Bettina, Hotho, Andreas, Jäschke, Robert, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Sure, York u.a. (Hrsg.): The semantic web. (Lecture notes in computer science ; 4011). Berlin u.a. : Springer, 2006. S. 530-544. ISBN 3-540-34544-2 - 978-3-540-34544-2 (The...
Discovering a Term Taxonomy from Term Similarities Using Principal Component Analysis (2006)
Bast, Holger, Dupret, Georges, Majumdar, Debapriyo, Piwowarski, Benjamin, Ackermann, Markus, Berendt, Bettina, ...
We show that eigenvector decomposition can be used to extract a term taxonomy from a given collection of text documents. So far, methods based on eigenvector decomposition, such as latent semantic...
Mining association rules in folksonomies (2006)
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd
Auch erschienen in: Batagelj, Vladimir u.a. (Hrsg.): Data science and classification. (Studies in classification, data analysis, and knowledge organization). Berlin u.a. : Springer, 2006. S. 261-270....
Kollaboratives Wissensmanagement (2006)
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd
Auch erschienen in: Pellegrini, Tassilo u.a. (Hrsg.): Semantic web. Berlin u.a. : Springer, 2006. S. 273-290. ISBN 3-540-29324-8 - 978-3-540-29324-8 (The original publication is available at...
BibSonomy: a social bookmark and publication sharing system (2006)
Hotho, Andreas, Jäschke, Robert, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Moor, Aldo de u.a. (Hrsg.): Proceedings of the First Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures. Aalborg :...
Stumme, Gerd, Hotho, Andreas, Berendt, Bettina
Auch erschienen in: Journal of web semantics. Amsterdam : Elsevier, 4 (2006), Nr. 2, S. 124-143. ISSN 1570-8268
Wege zur Entdeckung von Communities in Folksonomies (2006)
Jäschke, Robert, Hotho, Andreas, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Braß, Stefan u.a. (Hrsg.): 18. Workshop "Grundlagen von Datenbanken", Wittenberg Juni 2006. Halle-Wittenberg : Martin-Luther-Universität, 2006. S. 80-84
Trend detection in folksonomies (2006)
Hotho, Andreas, Jäschke, Robert, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Avrithis, Yannis u.a. (Hrsg.): Semantic multimedia. (Lecture notes in computer science ; 4306). Berlin u.a. : Springer, 2006. S. 56-70. ISBN 3-540-49335-2 = 978-3-540-49335-8 (The...
Content aggregation on knowledge bases using graph clustering (2006)
Schmitz, Christoph, Hotho, Andreas, Jäschke, Robert, Stumme, Gerd
Auch erschienen in: Sure, York u.a. (Hrsg.): The semantic web. (Lecture notes in computer science ; 4011). Berlin u.a. : Springer, 2006. S. 530-544. ISBN 3-540-34544-2 = 978-3-540-34544-2 (The...
Semantic network analysis of ontologies (2006)
Hoser, Bettina, Hotho, Andreas, Jäschke, Robert, Schmitz, Christoph, Stumme, Gerd
Auch erschienen in: Sure, York u.a. (Hrsg.): The semantic web. (Lecture notes in computer science ; 4011). Berlin u.a. : Springer, 2006. S. 530-544. ISBN 3-540-34544-2 - 978-3-540-34544-2 (The...
Collaborative and Usage-driven Evolution of Personal Ontologies (2005)
Peter Haase, Andreas Hotho, Lars Schmidt-thieme, York Sure
Large information repositories as digital libraries, online shops, etc.
Collaborative and Usage-driven Evolution of Personal Ontologies (2005)
Peter Haase, Andreas Hotho, Lars Schmidt-thieme, York Sure
Large information repositories as digital libraries, online shops, etc. rely on a taxonomy of the objects under consideration to structure the vast contents and facilitate browsing and searching...
Learning Concept Hierarchies from Text Corpora Using Formal Concept Analysis (2005)
Philipp Cimiano, Andreas Hotho, Steffen Staab
We present a novel approach to the automatic acquisition of taxonomies or concept hierarchies from a text corpus. The approach is based on Formal Concept Analysis (FCA), a method mainly used for the...
Semantic Web Mining and the Representation, Analysis, and Evolution of Web SPace (2005)
Bettina Berendt, Andreas Hotho, Gerd Stumme
Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. This survey analyzes the convergence of trends from both areas: Growing numbers of...
Learning concept hierarchies from text corpora using formal concept analysis (2005)
We present a novel approach to the automatic acquisition of taxonomies or concept hierarchies from a text corpus. The approach is based on Formal Concept Analysis (FCA), a method mainly used for the...
2006): Learning Ontologies to Improve Text Clustering and Classification (2005)
Stephan Bloehdorn, Andreas Hotho
Abstract. Recent work has shown improvements in text clustering and classification tasks by integrating conceptual features extracted from ontologies. In this paper we present text mining experiments...
Lws Stephan Bloehdorn, Wray Buntine, Andreas Hotho, Stephan Bloehdorn, Wray Buntine, Andreas Hotho
The emerging world of search we see is one which makes increasing use of information extraction, gradually blends in semantic web technology and peer to peer systems, and uses grid computing as part...
Learning concept hierarchies from text corpora using formal concept analysis (2005)
We present a novel approach to the automatic acquisition of taxonomies or concept hierarchies from a text corpus. The approach is based on Formal Concept Analysis (FCA), a method mainly used for the...
Semantic web mining and the representation, analysis, and evolution of web space (2005)
Berendt, Bettina, Hotho, Andreas, Stumme, Gerd
Auch erschienen in: 1. International Workshop on Representation and Analysis of Web Space : proceedings. Ostrava : Techn. Univ. of Ostrava, 2005. S. 1-16. ISBN 80-2480864-1
Semantic web mining and the representation, analysis, and evolution of web space (2005)
Berendt, Bettina, Hotho, Andreas, Stumme, Gerd
Auch erschienen in: 1. International Workshop on Representation and Analysis of Web Space : proceedings. Ostrava : Techn. Univ. of Ostrava, 2005. S. 1-16. ISBN 80-2480864-1
A Roadmap for Web Mining: From Web to Semantic Web (2004)
Berendt, Bettina, Hotho, Andreas, Mladenić, Dunja, Spiliopoulou, Myra, Stumme, Gerd
The purpose of Web mining is to develop methods and systems for discovering models of objects and processes on the World Wide Web and for web-based systems that show adaptive performance. Web Mining...
Clustern mit Hintergrundwissen / (2004)
Zugl.: Karlsruhe, Universiẗat, Diss., 2004.
Usage mining for and on the semantic web (2004)
www.aifb.uni-karlsruhe.de/WBS/gst Abstract. Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. Web Mining aims at discovering insights about the...
Conceptual knowledge processing with formal concept analysis and ontologies (2004)
Cimiano, Philipp, Hotho, Andreas, Stumme, Gerd, Tane, Julien
Auch erschienen in: Eklund, Peter (Hrsg.): Concept lattices. (Lecture notes in computer science ; 2961). Berlin u.a. : Springer, 2004. S. 189-207. ISBN 3-540-21043-1 (The original publication is...
A roadmap for web mining (2004)
Berendt, Bettina, Hotho, Andreas, Mladenic, Dunja, Someren, Maarten Van, Spiliopoulou, Myra, Stumme, Gerd
Auch erschienen in: Berendt, Bettina u.a. (Hrsg.): Web mining: from web to semantic web. (Lecture notes in computer science ; 3209). Berlin u.a. : Springer, 2004. S. 1-22. ISBN 3-540-23258-3 (The...
Chairs York Sure, Andreas Hotho, Andreas Hotho, Lise Getoor, Lise Getoor, Bamshad Mobasher
Extracting sentiments from unstructured text has emerged as an important problem in many disciplines. An accurate method would enable us, for example, to mine on-line opinions from the Internet and...
Boosting for Text Classification with Semantic Features (2004)
Stephan Bloehdorn Andreas, Andreas Hotho
Current text classification systems typically use term stems for representing document content. Semantic Web technologies allow the usage of features on a higher semantic level than single words for...
Comparing Conceptual, Divisive and Agglomerative Clustering for Learning Taxonomies from Text (2004)
Philipp Cimiano, Andreas Hotho, Steffen Staab
The application of clustering methods for automatic taxonomy construction from text requires knowledge about the tradeoff between, (i), their effectiveness (quality of result), (ii), efficiency...
Personalized Information Access in a Bibliographic Peer-to-Peer System (2004)
Peter Haase, Marc Ehrig, Andreas Hotho, Björn Schnizler
The Bibster system is an application of the use of semantics in Peer-to-Peer systems, which is aimed at researchers that share bibliographic metadata. In this paper we describe the design and...
A Roadmap for Web Mining: (2004)
From Web To, Bettina Berendt, Andreas Hotho, Dunja Mladenic, Maarten Van Someren, Myra Spiliopoulou, ...
this article form specific challenges, in particular: the privacy and security of patient data, the semantics of visual material (cf. the Digital Imaging and Communications in Medicine standard:...
Comparing Conceptual, Divisive and Agglomerative Clustering for Learning Taxonomies from Text (2004)
Philipp Cimiano, Andreas Hotho, Steffen Staab
The application of clustering methods for automatic taxonomy construction from text requires knowledge about the tradeoff between, (i), their effectiveness (quality of result), (ii), efficiency...
Clustering concept hierarchies from text (2004)
We present a novel approach to learning taxonomies or concept hierarchies from text. The approach is based on Formal Concept Analysis, a method mainly used for the analysis of data, i.e. for...
Boosting for text classification with semantic features (2004)
Stephan Bloehdorn, Andreas Hotho
Abstract. Current text classification systems typically use term stems for representing document content. Ontologies allow the usage of features on a higher semantic level than single words for text...
Personalized information access in a bibliographic peer-to-peer system (2004)
Peter Haase, Marc Ehrig, Andreas Hotho, Björn Schnizler
The Bibster system is an application of the use of semantics in Peer-to-Peer systems, which is aimed at researchers that share bibliographic metadata. In this paper we describe the design and...
Conceptual knowledge processing with formal concept analysis and ontologies (2004)
Cimiano, Philipp, Hotho, Andreas, Stumme, Gerd, Tane, Julien
Auch erschienen in: Eklund, Peter (Hrsg.): Concept lattices. (Lecture notes in computer science ; 2961). Berlin u.a. : Springer, 2004. S. 189-207. ISBN 3-540-21043-1 (The original publication is...
A roadmap for web mining (2004)
Berendt, Bettina, Hotho, Andreas, Mladenic, Dunja, Someren, Maarten Van, Spiliopoulou, Myra, Stumme, Gerd
Auch erschienen in: Berendt, Bettina u.a. (Hrsg.): Web mining: from web to semantic web. (Lecture notes in computer science ; 3209). Berlin u.a. : Springer, 2004. S. 1-22. ISBN 3-540-23258-3 (The...
Explaining text clustering results using semantic structures (2003)
Andreas Hotho, Steffen Staab, Gerd Stumme
Abstract. Common text clustering techniques offer rather poor capabilities for explaining to their users why a particular result has been achieved. They have the disadvantage that they do not relate...
Explaining text clustering results using semantic structures (2003)
Andreas Hotho, Steffen Staab, Gerd Stumme
Abstract. Common text clustering techniques offer rather poor capabilities for explaining to their users why a particular result has been achieved. They have the disadvantage that they do not relate...
Conceptual user tracking (2003)
Daniel Oberle, Bettina Berendt, Andreas Hotho, Jorge Gonzalez
Web usage mining applies data mining techniques to records of Web site visits. To better understand patterns of usage, analysis should take the semantics of visited URLs into account. This paper...
Wordnet improves text document clustering (2003)
Andreas Hotho, Steffen Staab, Gerd Stumme
Text document clustering plays an important role in providing intuitive navigation and browsing mechanisms by organizing large amounts of information into a small number of meaningful clusters. The...
Text Clustering Based on Background Knowledge (2003)
Andreas Hotho, Andreas Hotho, Steffen Staab, Steffen Staab, Gerd Stumme, Gerd Stumme
Text document clustering plays an important role in providing intuitive navigation and browsing mechanisms by organizing large amounts of information into a small number of meaningful clusters....
Explaining Text Clustering Results Using Semantic Structures (2003)
Andreas Hotho, Steffen Staab, Gerd Stumme
Common text clustering techniques offer rather poor capabilities for explaining to their users why a particular result has been achieved. They have the disadvantage that they do not relate...
Wordnet improves Text Document Clustering (2003)
Andreas Hotho, Steffen Staab, Gerd Stumme
Text document clustering plays an important role in providing intuitive navigation and browsing mechanisms by organizing large amounts of information into a small number of meaningful clusters. The...
First European Web Mining Forum Edited by (2003)
Bettina Berendt, Andreas Hotho, Dunja Mladenic, Maarten Van Someren, Myra Spiliopoulou, Gerd Stumme, ...
ECML/PKDD-2003: 1st European Web Mining Forum
Towards semantic web mining (2002)
Berendt, Bettina, Hotho, Andreas, Stumme, Gerd
Auch erschienen in: Horrocks, Ian u.a. (Hrsg.): The semantic web. (Lecture notes in computer science ; 2342). Berlin u.a. : Springer, 2002. S. 264-278. ISBN 3-540-43760-6 (The original publication is...
Text Clustering Based on Good Aggregations (2002)
Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a particular
Towards semantic web mining (2002)
Bettina Berendt, Andreas Hotho, Gerd Stumme
Abstract. Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. The idea is to improve, on the one hand, the results of Web Mining by exploiting...
Text Clustering Based on Good Aggregations (2002)
Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a particular
Conceptual clustering of text clusters (2002)
Abstract. Common clustering techniques have the disadvantage that they do not provide intensional descriptions of the clusters obtained. Conceptual Clustering techniques, on the other hand, provide...
Towards semantic web mining (2002)
Bettina Berendt, Andreas Hotho, Gerd Stumme
Abstract. Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. The idea is to improve, on the one hand, the results of Web Mining by exploiting...
Towards semantic web mining (2002)
Bettina Berendt, Andreas Hotho, Gerd Stumme
Abstract. Semantic Web Mining aims at combining the two fast-developing research areas Semantic Web and Web Mining. The idea is to improve, on the one hand, the results of Web Mining by exploiting...
Conceptual clustering of text clusters (2002)
karlsruhe.de Abstract. Common clustering techniques have the disadvantage that they do not provide intensional descriptions of the clusters obtained. Conceptual Clustering techniques, on the other...
Kaon - towards a large scale semantic web (2002)
Erol Bozsak, Marc Ehrig, Siegfried H, Andreas Hotho, Er Maedche, Boris Motik, ...
Abstract. The Semantic Web will bring structure to the content of Web pages, being an extension of the current Web, in which information is given a welldefined meaning. Especially within e-commerce...
Kaon - towards a large scale semantic web (2002)
Erol Bozsak, Marc Ehrig, Siegfried H, Andreas Hotho, Er Maedche, Boris Motik, ...
Abstract. The Semantic Web will bring structure to the content of Web pages, being an extension of the current Web, in which information is given a welldefined meaning. Especially within e-commerce...
Text Clustering Based on Good Aggregations (2002)
Andreas Hotho, Er Maedche, Steffen Staab
Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a particular clustering result...
Semantic Web Mining, Bettina Berendt, Andreas Hotho, Gerd Stumme
The following paper explains, how we can enrich an existing ontology by mining the WWW. The use of such an ontology may be manifold, for example as a component of information systems or multimedial...
Kaon - towards a large scale semantic web (2002)
Erol Bozsak, Marc Ehrig, Siegfried H, Andreas Hotho, Er Maedche, Boris Motik, ...
Abstract. The Semantic Web will bring structure to the content of Web pages, being an extension of the current Web, in which information is given a welldefined meaning. Especially within e-commerce...
Towards semantic web mining (2002)
Berendt, Bettina, Hotho, Andreas, Stumme, Gerd
Auch erschienen in: Horrocks, Ian u.a. (Hrsg.): The semantic web. (Lecture notes in computer science ; 2342). Berlin u.a. : Springer, 2002. S. 264-278. ISBN 3-540-43760-6 (The original publication is...
SEAL-II — the soft spot between richly structured and unstructured knowledge (2001)
Andreas Hotho, Alexander Maedche, Steffen Staab, Rudi Studer
Abstract: Recently, the idea of semantic portals on the Web or on the intranet has gained popularity. Their key concern is to allow a community of users to present and share knowledge in a particular...
Gerd Stumme, Andreas Hotho, Bettina Berendt
�Ò � � ��×Ø�Ò�Ù�×��� � Ï� � Ù×�� � Ñ�Ò�Ò � �Ò�ÐÝÞ� × Ù×�Ö ����Ú�ÓÖ Û� � ×ØÖÙ ØÙÖ� Ñ�Ò�Ò �...
Ontology-based text document clustering (2001)
Andreas Hotho, Er Maedche, Steffen Staab
Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a particular clustering result...
SEAL-II — the soft spot between richly structured and unstructured knowledge (2001)
Andreas Hotho, Er Maedche, Steffen Staab, Rudi Studer
Abstract: Recently, the idea of semantic portals on the Web or on the intranet has gained popularity. Their key concern is to allow a community of users to present and share knowledge in a particular...
Ontology-based text clustering (2001)
Andreas Hotho, Steffen Staab Alex, Er Maedche
www.aifb.uni-karlsruhe.de/WBS/ Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a...
SEAL-II — the soft spot between richly structured and unstructured knowledge (2001)
Andreas Hotho, Alexander Maedche, Steffen Staab, Rudi Studer
Abstract: Recently, the idea of semantic portals on the Web or on the intranet has gained popularity. Their key concern is to allow a community of users to present and share knowledge in a particular...
Enhancing preprocessing in data-intensive domains using online-analytical processing (2000)
Er Maedche, Andreas Hotho, Markus Wiese
Abstract The application of data mining algorithms needs a goal-oriented preprocessing of the data. In practical applications the preprocessing task is very time consuming and has an important...
Enhancing preprocessing in data-intensive domains using online-analytical processing (2000)
Er Maedche, Andreas Hotho, Markus Wiese
Abstract The application of data mining algorithms needs a goal-oriented preprocessing of the data. In practical applications the preprocessing task is very time consuming and has an important...
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...