Pawel Kozak, Karsten Tolle.
ACM 3rd International Conference on Web Science (ACM WebSci 11), Koblenz, Germany, 14-17th of June 2011 (pdf).

Natascha Hoebel, Darius Zumstein.
ACM 3rd International Conference on Web Science (ACM WebSci 11), Koblenz, Germany, 14-17th of June 2011.

"A Framework Analysis for Managing Explicit Feedback of Visitors of a Web Site"

Clemens Schefels, Roberto V. Zicari.
Proceedings of the 12th International Conference on Information Integration and Web-based Applications & Services (iiWAS2010), Paris, France, 8th-10th of November 2010.
.pdf (281 KB)

"CORD: A Hybrid Approach for Efficient Clustering of Ordinal Data using Fuzzy Logic and Self-Organizing Maps."

Natascha Hoebel, Stanislav Kreuzer.
Proceedings of the 6th International Conference on Web Information Systems and Technologies (WEBIST 2010), Valencia, Spain, 7th-11th of April 2010.
ACM SIG WEB (Special Interest Group on Hypertext, Hypermedia and the Web) cooperating conferernce.

"Introducing Zones to a Web Site: A Test Based Evaluation on Semantics, Content, and Business Goals"

Natascha Hoebel, Naveed Mushtaq, Clemens Schefels, Karsten Tolle, Roberto V. Zicari.
11th IEEE Conference on Commerce and Enterprise Computing (CEC’09), Vienna, Austria, July 20th-23th 2009.
IEEE Computer Society Press, pp 265-272, Los Alamitos, USA.

"A Framework Analysis of Business Models for Open Source Software"

Jesper Holck, Roberto Zicari, Volker Mahnke.
The 1st International Workshop on Building Sustainable Open Source
June 6, 2009, Skövde, Sweden. (pdf)

"Winning through incremental innovation: The case of MySQL AB"

Jesper Holck, Volker Mahnke, and Roberto V. Zicari.
Proceedings of the 31st Information Systems Research Seminar in Scandinavia (IRIS),
9-12 August, 2008, Åre, Sweden.

"Creating User Profiles of Web Visitors using Zones, Weights and Actions"

Natascha Hoebel, Roberto V. Zicari
Proceedings of 5th IEEE Conference on Enterprise Computing, E-Commerce and E-Services (EEE 08),
21th-24th of July 2008, Washington D.C., USA. pdf (326 KB)

"Demands for Modernization - Survey Analysis" 

Karsten Tolle, Evaldas Verselis, Viktor Paland, and Simone Hannemann. Model-driven Modernization of Software Systems MMSS'08, co-located with: 4th European Conference on Model Driven Architecture (ECMDA), June 9, 2008, Berlin - Germany

"Performance and architecture modeling of interoperability system for SME's"

Mindaugas Kiauleikis, Valentinas Kiauleikis, Claudia Guglielmina, Karsten Tolle and Nerijus Morkevicius. 11th International Conference on Business Information Systems, BIS 2008 , Innsbruck, Austria 5-7 May 2008

"Interoperability challenges in New Member States Small and Medium Enterprises require suitable EAI architectures"

Karsten Tolle, Valentinas Kiauleikis, Gerald Knoll, Claudia Guglielmina, Alessandra Arezza
Conference on Enterprise Information Systems ICEIS 2007, June 12-16, Funchal, Madeira - Portugal

"An Interoperable E-business platform towards better integration of New Member States SME's"

Karsten Tolle, Valentinas Kiauleikis, Kristina Justinaviciene, Gerald Knoll, Claudia Guglielmina, Alessandra Arezza
Interoperability for Enterprise Software and Applications I-ESA 2007 , March 28th - 30th, Madeira, Portugal

"On Clustering Visitors of a Web Site by Behavior and Interests"

Natascha Hoebel,  Roberto V. Zicari
Proceedings of the 5th Atlantic Web Intelligence Conference - AWIC'2007, Fontainebleau, France, June 2007.
Springer, Advances in Soft Computing, Volume 43/2007, Advances in Intelligent Web Mastering, p.160-167, ISBN: 978-3-540-72574-9, (.pdf 155 )

"Federated Message-based Architecture for eBusiness Interoperability in New Member States SMEs"

Alessandra Bagnato, Claudia Guglielmina, Gerald Knoll, Karsten Tolle
Federated Message-based Architecture for eBusiness Interoperability in New Member States SMEs
eChallenges 2006, Barcelona, Spain

"The Design of Gugubarra 2.0: A Tool for Building and Managing Profiles of Web Users"

Natascha Hoebel, Sascha Kaufmann, Karsten Tolle, R. V. Zicari
IEEE/WIC/ACM International Conference on Web Intelligence, Intelligent Agent Technology and Data Mining, 18-22 December 2006, Hong Kong (pdf ).
Long Version: (pdf )

"The Gugubarra Project: Building and Evaluating User Profiles for Visitors of Web Sites"

Natascha Hoebel, Sascha Kaufmann, Karsten Tolle, R. V. Zicari
First IEEE Workshop on Hot Topics in Web Systems and Technologies,
November 13-15, 2006 Boston, Massachusetts, USA (pdf ).

"Understanding data by their context using RDF"

Karsten Tolle
AISTA'04: International Conference on Advances in Intelligent Systems - Theory and Applications in cooperation with IEEE Computer Society, Centre de Recherche Public Henri Tudor, Luxembourg, 15-18 November 2004, (.pdf, 217KB ).

"Trust and context using the RDF-Source related Storage System (RDF-S3) and easy RQL (eRQL)"

Karsten Tolle and Fabian Wleklinski
XML-Technologien für das Semantic Web (http://xsw.xml-clearinghouse.de ) im Rahmen der Berliner XML Tage (http://www.berliner-xmltage.de/ )
2004, Germany, October 2004 (.pdf, 337KB ).

"Building and Evaluating Non-Obvious User Profiles for Visitors of Web Sites"

Naveed Mushtaq, Karsten Tolle, Peter Werner and Roberto Zicari
IEEE Conference on E-Commerce Technology (CEC 04)
July 6-9, 2004, San Diego, California, USA, (.pdf, 265KB ).

"RDF-S3 und eRQL: RDF Technologien für Informationsportale"

Karsten Tolle und Fabian Wleklinski
Informatik 2004 Workshop über Semantische Technologien für Informationsportale, im Rahmen der 34. GI Jahrestagung 2004 http://www.informatik2004.de/ ,
Ulm, Germany, (.pdf, 157KB ).

"RQL: A Functional Query Language for RDF"

G. Karvounarakis, A. Magkanaraki, S. Alexaki, V. Christophides, D. Plexousakis, M. Scholl, K. Tolle
published at Functional Approaches to Computing With Data, P.M.D.Gray, L.Kerschberg, P.J.H.King, A.Poulovassilis (eds.), LNCS Series, Springer-Verlag (.pdf, 536KB ).

"Querying the Semantic Web with RQL"

G. Karvounarakis, A. Magkanaraki, S. Alexaki, V. Christophides, D. Plexousakis, M. Scholl, K. Tolle
published at Computer Networks and ISDN Systems Journal, Elsevier Science (.pdf, 530KB ).

"Agent-Based Services for Information Portals"

Ciaran Bryce, Michel Pawlak, Karsten Tolle, Peter Werner and Roberto Zicari
The Eighteenth Annual ACM Symposium on Applied Computing March 9 to 12, 2003, Melbourne, Florida, USA (.pdf, 516KB).

"The ICS-FORTH RDFSuite: High-level Scalable Tools for the Semantic Web"

S. Alexaki, N. Athanasi, V. Christophides, G. Karvounarakis, A. Maganaraki, D. Plexousakis, and K. Tolle
The Eleventh International World Wide Web Conference (WWW2002), Honolulu, Hawaii, USA, May 7-11, 2002., Poster(.pdf, 161KB).

"The ICS-FORTH RDFSuite: Managing Voluminous RDF Description Bases"

S. Alexaki, V. Christophides, G. Karvounarakis, D. Plexousakis, K. Tolle
2nd International Workshop on the Semantic Web http://semanticweb2001.aifb.uni-karlsruhe.de , in conjunction with Tenth International World Wide Web Conference (WWW10) http://www10.org/ , pp. 1-13, Hongkong, May 1, 2001. (.pdf, 547KB )

"What Do You Need to Set Up an E-Commerce Platform?"

Roberto Zicari
Eleventh International Workshop on Research Issues in Data Engineering (RIDE' 01), pp. 121-122, IEEE, April 2001

"Managing RDF Metadata for Community Webs"

S. Alexaki, V. Christophides, G. Karvounarakis, D. Plexousakis, K. Tolle, Bernd Amann, Irini Fundulaki, Michel Scholl, Anne-Marie Vercoustre
2nd International Workshop on the World Wide Web and Conceptual Modeling (2000) http://www.er2000.byu.edu/wcm2000/ , pp. 140-151

"Architecture of a reusable and extensible DataBase-Wrapper with rule-set based object-relational schemes"

Claus Peter Priese
L'Objet Scientific Journal Vol.6 no.3 ISSN 1262-1137, November 2000, Hermes Science Publishing, Paris and Oxford note: because of publication restrictions only a pre-final version of the paper can be provided here for download

"An approach for application-data class and object-identity to persistent-capable class and object-identity mapping"

Claus Peter Priese
Presented at the Net.ObjectDays2000 , 11. October 2000, Erfurt, Germany.

"Intoduction to application-data to persistent-capable class mapping for an object-relational persistency component"

Claus Peter Priese
Presented at the TOOLS2000 Workshop on "Component Based Development , 5. June 2000, Le Mt.St.Michel, France

"Distributed Application Integration: Myth or Reality?"

Roberto Zicari
IEEE International Symposium of Distributed Objects and Applications (DOA'00) , Antwerp, Belgium, IEEE Publisher , 2000