U. Thiel

Supporting information access in next generation digital library architectures (2005)

Frommholz, I., Knezevic, P., Mehta, B., Niederée, C., Risse, T., Thiel, U.

Current developments on Service-oriented Architectures, Peer-to-Peer and Grid computing promise more open and flexible architectures for digital libraries. They will open the Digital Library (DL)...

Statistical relationship determination in automatic thesaurus construction (2005)

Chen, L., Fankhauser, P., Thiel, U., Kamps, T.

Queries in context: Access to digitized historic documents in a collaboratory for the humanities (2005)

Thiel, U., Brocks, H., Dirsch-Weigand, A., Everts, A., Frommholz, I., Stein, A.

In contrast to standard digital libraries, systems addressing the specific requirements of cultural heritage need to deal with digitized material like scanned documents instead of home digital items....

Can proactive behavior turn chatterbots into conversational agents? (2005)

L'Abbate, M., Thiel, U., Kamps, T.

Agent-based assistance in a digital library user interface: Supporting users in annotation and search tasks (2005)

Thiel, U., Brocks, H., Stein, A.

The layer-seeds term clustering method: Enabling proactive situation-aware product recommendations in e-commerce dialogues (2005)

Chen, L., L'Abbate, M., Thiel, U., Neuhold, E.J.

In e-commerce it is often crucial to provide customers a large choice of relevant offers. Users, however, seldom provides complete and comprehensive descriptions of their desires, therefore user...

Content engineering for conversational advisory systems (2004)

L'Abbate, M., Thiel, U., Kamps, T.

Beratungsdialog im WWW: Ein konversationales Modell und seine Implementierung (2004)

Engelmann, H., L'Abbate, M., Thiel, U.

Increasing the customer's choice: query expansion based on the layer-seeds method and its application in e-commerce (2004)

Chen, L., L'Abbate, M., Thiel, U., Neuhold, E.J.

COLLATE - A collaboratory supporting research on historic European films (2004)

Thiel, U., Brocks, H., Frommholz, I., Dirsch-Weigand, A., Keiper, J., Stein, A., ...

Collaborative research and documentation of European film history: The COLLATE collaboratory (2004)

Stein, A., Keiper, J., Bezerra, L., Brocks, H., Thiel, U.

Supporting information access in next generation digital library architectures (2004)

Frommholz, I., Knezevic, P., Mehta, B., Niederée, C., Risse, W., Thiel, U.

Annotation-based document retrieval with four-valued probabilistic datalog (2004)

Frommholz, I., Thiel, U., Kamps, T.

Using case based retrieval techniques for handling anomalous situations in advisory dialogues (2004)

L'Abbate, M., Frommholz, I., Thiel, U., Neuhold, E.

The efficacy of expert systems often depends on the accuracy and completeness of the problem specification negotiated with the user. Therefore, efficient user interfaces are needed, in order to...

Language modeling for effective construction of domain specific thesauri (2004)

Chen, L.B., Thiel, U.

In this paper we present an approach for effective construction of domain specific thesauri. We assume that the collection is partitioned into document categories. By taking advantage of these...

Annotations in digital libraries and collaboratories: Facets, models and usage (2004)

Agosti, M., Ferro, N., Frommholz, I., Thiel, U.

This paper presents the results of our study regarding the different facets and ways of using annotations in both digital libraries and collaboratories. This study represents an innovative attempt at...

A personalized information search process based on dialoguing agents and user profiling (2003)

Semeraro, G., Degemmis, M., Lops, P., Thiel, U., L'Abbate, M.

The amount of information available on the web, as well as the number of e-businesses and web shoppers, is growing exponentially. Customers have to spend a lot of time to browse the net in order to...

The use of contextual information in a proactivity model for conversational agents (2003)

L'Abbate, M., Thiel, U.

For conversational agents engaging in a natural language-based interaction with web site users in service exchange applications, simple entertaining "chatting" is not sufficient. Instead, the agent...

Document-centered collaboration for scholars in the humanities - the COLLATE system (2003)

Frommholz, I., Brocks, H., Thiel, U., Neuhold, E., Iannone, L., Semeraro, G., ...

In contrast to electronic document collections we find in contemporary digital libraries, systems applied in the cultural domain have to satisfy specific requirements with respect to data ingest,...

Kontextbasiertes Retrieval unter Verwendung verknüpfter Annotationen (2002)

Frommholz, I., Brocks, H., Thiel, U., Stein, A.

Automatische Thesauruserstellung und Query Expansion in einer E-Commerce-Anwendung (2002)

Chen, L., Thiel, U., L'Abbate, M.

Constraints-based query translation across heterogeneous sources for distributed information retrieval (2002)

Huang, L., Thiel, U., Hemmje, M., Neuhold, E.J.

How to incorporate collaborative discourse in cultural digital libraries (2002)

Brocks, H., Stein, A., Frommholz, I., Thiel, U., Dirsch-Weigand, A.

Helping conversational agents to find informative responses: Query expansion methods for chatterbots (2002)

L'Abbate, M., Thiel, U.

Intelligent product information search in e-commerce (2001)

L'Abbate, M., Thiel, U.

Customizable Retrieval Functions Based on User Tasks in the Cultural Heritage Domain (2001)

Brocks, H., Thiel, U., Stein, A., Dirsch-Weigand, A.

COLLATE - Historische Filmforschung in einem verteilten Annotationssystem im WWW (2001)

Brocks, H., Dirsch-Weigand, A., Keiper, J., Stein, A., Thiel, U.

Adaptively Constructing the Query Interface for Meta-Search Engines (2001)

Huang, L., Thiel, U., Hemmje, M., Neuhold, E.J.

Adaptive web meta-search enhanced by contraint-based query constructing and mapping (2001)

Huang, L., Thiel, U., Hemmje, M., Neuhold, E.J.

This paper introduces an adaptive method that can be used to construct the query user interfaces for the information integration systems (IIS) on the Web, and a constraint-based method for mapping...

Distributed information search with adaptive meta-search engines (2001)

Huang, L., Thiel, U., Hemmje, M., Neuhold, E.J.

Intelligent Product Information Search in E-Commerce: Retrieval Strategies for Virtual Shop Assistants (2001)

L´Abbate, M., Thiel, U.

COLLATE - A web-based collaboratory for content-based access to and work with digitized cultural material (2001)

Keiper, J., Brocks, H., Dirsch-Weigand, A., Stein, A., Thiel, U.

BCS - IRSG 23rd European Colloquium on Information Retrieval Research 2001: Papers; April 4-6, 2001, Darmstadt (2001)

Thiel, U.

Chatterbots and intelligent information search (2001)

L'Abbate, M., Thiel, U.

Constraints-based Query Translation across Heterogeneous Information Sources (2000)

Huang, L., Thiel, U., Hemmje, M., Neuhold, E.J.

Intelligent E-Commerce with Guiding Agents based on Personalized Interaction Tools (2000)

Thiel, U., Stein, A.

Designing for Semantic Access: A Video Browsing System (2000)

Hollfelder, S., Everts, A., Thiel, U.

Improving customer relationship management through machine learning techniques in B2C e-commerce interfaces (2000)

Thiel, U., Stein, A., Semeraro, G., Abbatista, F., Candia, L. De, Fanizzi, N., ...

COGITO - E-commerce mediante agenti guida basato su tools per la interazione personalizzata (2000)

Thiel, U., Stein, A., Semeraro, G., Abbatista, F., Candia, L. De, Fanizzi, N., ...

Designing for Semantic Access: A Video Browsing System (1999)

Hollfelder, S., Everts, A., Thiel, U.

Concept-Based Browsing in Video Libraries (1999)

Hollfelder, S., Everts, A., Thiel, U.

Informierte Kooperation - die Rolle digitaler Bibliotheken im Wissensmanagement (1999)

Thiel, U., Lutes, B., Nicolaides, M.

User-Tailored Planning of Mixed Initiative Information-Seeking Dialogues (1999)

Stein, A., Gulla, J.A., Thiel, U.

Cognitive approaches to intelligent information retrieval - notes for tutorial held at the german summer school in IR (1999)

Thiel, U.

Beyond similarity searching: Concept-based video retrieval and browsing (1999)

Thiel, U., Everts, A., Hollfelder, S.

Can Rule-Based Indexing Support Concept-Based Multimedia Retrieval in Digital Libraries?: Some Experimental Results (1999)

Thiel, U., Everts, A., Lutes, B., Stein, A.

Designing for semantic access. A video browsing system (1998)

Hollfelder, S., Everts, A., Thiel, U.

Digital Library applications based on huge amounts of digital video data require efficient browsing and searching mechanisms for the extraction of relevant information. To avoid information overload,...

Multimedia management and query processing issues in distributed digital libraries: A HERMES perspective (1998)

Thiel, U., Hollfelder, S., Everts, A.

Automated multilingual indexing: A synthesis of rule-based and thesaurus-based methods (1998)

Kutschekmanesch, S., Lutes, B., Moelle, K., Thiel, U., Tzeras, K.

Integration and Search in Digital Libraries: A Logic-Based Approach (1998)

Thiel, U., Everts, A., Lutes, B., Tzeras, K.

Abductive Dialogue Planning for Concept-Based Multimedia Information Retrieval (1998)

Stein, A., Gulla, J.A., Müller, A., Thiel, U.

Intelligent Interfaces for Digital Libraries (1998)

Thiel, U.

Designing for semantic access. A video browsing system (1998)

Hollfelder, S., Everts, A., Thiel, U.

Digital Library applications based on huge amounts of digital video data require efficient browsing and searching mechanisms for the extraction of relevant information. To avoid information overload,...

The search for information in digital libraries (1997)

Thiel, U., Tzeras, K.

Making sense of users's mouse clicks: Abductive reasoning and conversational dialogue modeling (1997)

Stein, A., Gulla, J.A., Thiel, U.

Conversational interaction for semantic access to multimedia information (1997)

Stein, A., Gulla, J.A., Müller, A., Thiel, U.

An abductive linguistic approach to model retrieval (1997)

Gulla, J.A., Thiel, U.

Retrieving conceptual models on the basis of word semantics (1996)

Gulla, J.A., Vos, A. Van Der, Thiel, U.

Dialogue strategies for multimedia retrieval: Intertwining abduction reasoning and dialogue planning (1996)

Thiel, U., Gulla, J.A., Müller, A., Stein, A.

Why was this item retrieved; new ways to explore retrieval results (1996)

Müller, A., Thiel, U.

Digital libraries and information retrieval (1996)

Ferber, R., Thiel, U.

Dialogue techniques for supporting multimedia information retrieval (1995)

Stein, A., Müller, A., Thiel, U.

The MIRACLE system: Using abductive inference and dynamic indexing to retrieve multimedia SGML documents (1995)

Müller, A., Thiel, U.

Interaction in Hypermedia Systems: From Browsing to Conversation (1995)

Thiel, U.

Cases, scripts, and information-seeking strategies: On the design on interactive information retrieval systems (1995)

Belkin, N., Cool, C., Stein, A., Thiel, U.

The support of effective interaction of the user with the other components of the system is a central problem for information retrieval. In this paper, we present a theory of such interactions taking...

Cases, scripts, and information-seeking strategies: on the design of interactive information retrieval systems (1994)

Belkin, N., Cool, C., Stein, A., Thiel, U.

Architecture for an interactive multimedia retrieval system (1994)

Thiel, U.

Abductive information retrieval of multimedia data (1994)

Müller, A., Thiel, U.

CORINNA - cooperative retrieval dialogues (1994)

Thiel, U., Fischer, M.

Search and Retrieval in Object-Oriented Information Systems (1993)

Neuhold, Erich J., Aberer, Karl, Klas, Wolfgang, Stein, A., Thiel, U.

Search and retrieval in object-oriented information systems (1993)

Neuhold, E.J., Aberer, K., Stein, A., Klas, W., Thiel, U.

Automatically converting linear text to hypertext: A case study (1993)

Gu, J., Thiel, U.

Efficient retrieval of complex objects: Query processing in a hybrid DB and IR system (1993)

Gu, J., Thiel, U., Zhao, J.

A conversational model of multimodal interaction: Presented at the HCI Consortium Winter Workshop, Atlanta, January 23-26, 1993 (1993)

Stein, A., Thiel, U.

Efficient retrieval of complex objects: Query processing in a hybrid DB and IR system (1993)

Gu, J., Thiel, U., Zhao, J.

Expeditionen in Informationsräume: Zur Konzeption eines graphischen Informationssystems auf der Basis dreidimensionaler Visualisierungen (1992)

Hemmje, M., Thiel, U.

Knowledge-based control of visual dialogues in information systems (1992)

Stein, A., Thiel, U., Tißen, A.

Towards a user-centered interface for information retrieval: the MERIT System (1992)

Thiel, U., Hemmje, M., Kerner, A., Kracker, M., Sitter, S., Stein, A., ...

Integrating natural language components into graphical discourse (1992)

Dilley, S., Bateman, J.A., Thiel, U., Tißen, A.

Informationsprobleme im grafischen Dialog intelligent lösen (1992)

Thiel, U., Stein, A.

Knowledge based control of visual dialogues in information systems (1992)

Stein, A., Thiel, U., Tißen, A.

The approach to visual interfaces outlined in this paper treats user inputs such as mouse clicks, menu selections, etc. not as invocations of methods that can be executed without regarding the...

Graphical support for users interfaces within retrieval dialogues (1991)

Kerner, A., Thiel, U.

Towards coherent hypermedia navigation by pragmatic dialogue modeling (1991)

Stein, A., Thiel, U., Tißen, A.

Konversationales graphisches Retrieval in Textwissensbasen (1990)

Thiel, U.

Konversationale Modellierung graphisch-interaktiver Systeme (1990)

Thiel, U.

Konversationale Modellierung graphisch-interaktiver Systeme: Ein Beispiel (1990)

Thiel, U.

Myocardial Thallium201imaging in hypertrophic obstructive cardiomyopathy (1981)

HANRATH, P., MATHEY, D., MONTZ, R., THIEL, U., VORBRINGER, H., KUPPER, W., ...

Thallium 201 Myocardial perfusion imaging was performed at rest and during exercise in 14 patients with hypertrophic obstructive cardiomyopathy without coronary artery disease. The regional...

Structures of diphospho-myo-inositol pentakisphosphate and bisdiphospho-myo-inositol tetrakisphosphate from Dictyostelium resolved by NMR analysis.

Laussmann, T, Eujen, R, Weisshuhn, C M, Thiel, U, Vogel, G

Diphospho-myo-inositol phosphates (PP-InsP5 and bis-PP-InsP4) were isolated from Dictyostelium in order to clarify the precise positional isomerism by two-dimensional 1H/31P-NMR analysis. The...

Structures of diphospho-myo-inositol pentakisphosphate and bisdiphospho-myo-inositol tetrakisphosphate from Dictyostelium resolved by NMR analysis.

Laussmann, T, Eujen, R, Weisshuhn, C M, Thiel, U, Vogel, G

Diphospho-myo-inositol phosphates (PP-InsP5 and bis-PP-InsP4) were isolated from Dictyostelium in order to clarify the precise positional isomerism by two-dimensional 1H/31P-NMR analysis. The...

Transthyretin and complex protein pattern in aqueous humor of patients with primary open-angle glaucoma

Grus, F. H., Joachim, S. C., Sandmann, S., Thiel, U., Bruns, K., Lackner, K. J., ...