Wolfgang Klas, Christian Breiteneder, ...
Inhalte ermöglicht. Mit einer zunehmenden Zahl an verfügbaren MPEG-7-Medienbeschreibungen wird
An Analysis of XML Database Solutions Concerning the Management of MPEG-7 Media Descriptions (2008)
MPEG-7 constitutes a promising standard for the description of multimedia content. It can be expected that a lot of applications based on MPEG-7 media descriptions will be set up in the near future....
MPEG-7 is a very promising standard for the description of multimedia content. Cer-tainly, means for the adequate management of large amounts of MPEG-7 media descrip-tions are needed in the near...
A Typed Representation and Type Inference for MPEG-7 Media Descriptions ∗ (2008)
MPEG-7 is a promising standard for multimedia content description. Adequate means for the management of large amounts of MPEG-7 media descriptions are needed in the near future. Essentially, MPEG-7...
- Theoretical Computer Science- Artificial Intelligence- Distributed Systems (2008)
on medicine and natural sciences. In 1989 the University established two new faculties: Engineering Sciences and Computer Science. This enlargement took place within the framework of the so-called...
Database Services For, Susanne Boll, Wolfgang Klas, Michael Lohr, Susanne Boll, Wolfgang Klas, ...
Advanced multimedia applications call for integrated database system support for the managementofmultimedia data. Traditional database management systems do not provide appropriate concepts and...
Contents 15 Database Integration Using the Open Object-Oriented Database (2007)
Wolfgang Klas, Peter Fankhauser, Peter Muth, Thomas C. Rakow, E. J. Neuhold, In Omran Bukhres, ...
Abstract History Merging as a Mechanism for Concurrency Control in Cooperative Environments (2007)
Jurgen Wasch, Jürgen Wäsch, Wolfgang Klas, Wolfgang Klas
Cooperative applications need proper transactional support for coordinating joint activities, sharing of data, and semantically correct exchange of information of collaborating users. Conventional...
Supporting Multimedia Presentations from the Perspective of Multimedia Database Systems (2007)
Introduction and Motivation Applications very often have to handle multimedia data. They have to process, manipulate, present, audio, video, graphics, images, text, and combinations of these media...
Search and Retrieval in Object-Oriented Information Systems (2007)
Erich Neuhold, Karl Aberer, Wolfgang Klas, Adelheit Stein, Ulrich Thiel
In this paper, we outline the features of a knowledge-based retrieval interface MERIT (Multimedia Extensions of Retrieval Interaction Tools), and VODAK, an object-oriented DBMS suitable for...
Wolfgang Klas, Karl Aberer, Erich Neuhold
Hypertext or hypermedia is an approach to information management in which multimedia data is organized in a network of nodes connected by links. Many hypermedia systems have been designed to support...
{kboehm, aberer} @ darmstadt.gmd.de {klas @ dasy. informatik. uni-ulm.de
Systems Using the VODAK Model Language (2007)
Wolfgang Klas, Karl Aberer, Erich Neuhold
email: { klas,aberer, neuhold} @ darmstadt.gmd.de 1
Intelligent prefetching and buffering for interactive streaming of MPEG Videos (2005)
Boll, Susanne, Heinlein, Christian, Klas, Wolfgang, Wandel, Jochen
In diesem technischen Bericht wird eine intelligente Puffer und Prefetching Strategie MPEG-L/MRP vorgestellt, die sich mit der adaptiven und kontinuierlichen Übertragung von MPEG-1 Videos über...
An analysis of XML database solutions for the management of MPEG-7 media descriptions (2003)
MPEG-7 constitutes a promising standard for the description of multimedia content. It can be expected that a lot of applications based on MPEG-7 media descriptions will be set up in the near future....
Karin Schellner, Utz Westermann, Sonja Zillner, Wolfgang Klas
It is the aim of the CULTOS project to provide researchers in intertextual studies with a collaborative multimedia platform for the authoring, management, search, exchange, and presentation of...
ebXML: Status, Research Issues, and Obstacles (2002)
Birgit Hofreiter, Christian Huemer, Wolfgang Klas
Technologies and approaches in the field of Electronic Commerce are not mature enough in order to allow for their broad successful commercial application. Neither existing, successful approaches that...
Multimedia Document Models -- Sealed Fate or Setting Out for New Shores? (2000)
Susanne Boll Wolfgang, Wolfgang Klas, Utz Westermann
Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives to fit the needs of next generation multimedia applications which bring up requirements like...
Multimedia Document Models - Sealed Fate or Setting Out for New Shores? (2000)
Susanne Boll, Wolfgang Klas, Utz Westermann
. Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives to fit the needs of next generation multimedia applications which bring up requirements...
Multimedia Document Models - Sealed Fate or Setting Out for New Shores? (2000)
Susanne Boll, Wolfgang Klas, Utz Westermann
. Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives to t the needs of next generation multimedia applications which bring up requirements like...
MPEG-L/MRP: Adaptive Streaming of MPEG Videos for Interactive Internet Applications (2000)
Susanne Boll, Christian Heinlein, Wolfgang Klas, Jochen Wandel, Jochen W
Continuous delivery of media streams like video over IP networks so far is mainly handled by commercial approaches delivering streams forward-oriented in their own proprietary format. Though some...
Multimedia Document Models - Sealed Fate or Setting Out for New Shores? (2000)
Susanne Boll, Wolfgang Klas, Utz Westermann
Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives to fit the needs of next generation multimedia applications which bring up requirements like...
Architecture of a DataBlade Module for the Integrated Management of Multimedia Assets (1999)
Utz Westermann Wolfgang, Wolfgang Klas
Advanced multimedia applications require adequate support by database technology for the integrated, uniform management, retrieval, and delivery of media data of different types. While there has been...
Architecture of a DataBlade Module for the Integrated Management of Multimedia Assets (1999)
Utz Westermann Wolfgang, Wolfgang Klas
Advanced multimedia applications require adequate support by database technology for the integrated, uniform management, retrieval, and delivery of media data of different types. While there has been...
Susanne Boll, Wolfgang Klas, Utz Westermann
. Advanced multimedia applications require adequate support for the modeling of multimedia information but also an adequate database technology supporting the integrated management, retrieval,...
Architecture of a DataBlade Module for the Integrated Management of Multimedia Assets (1999)
Utz Westermann Wolfgang, Wolfgang Klas
Advanced multimedia applications require adequate support by database technology for the integrated, uniform management, retrieval, and delivery of media data of different types. While there has been...
A Cross Media Adaptation Strategy for Multimedia Presentations (1999)
Susanne Boll, Wolfgang Klas, Jochen Wandel, Jochen W
Adaptation techniques for multimedia presentations are mainly concerned with switching between different qualities of single media elements to reduce the data volume and by this to adapt to limited...
By Acm Inc, Susanne Boll, Wolfgang Klas, Jochen W
Adaptation techniques for multimedia presentations are mainly concerned with switching between different qualities of single media elements to reduce the data volume and by this to adapt to limited...
Multimedia Document Models - Sealed Fate or Setting Out for New Shores? (1999)
Susanne Boll, Wolfgang Klas, Utz Westermann
Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives to fit the needs of next generation multimedia applications which bring up requirements like...
Architecture of a DataBlade Module for the Integrated Management of Multimedia Assets (1999)
Advanced multimedia applications require adequate support by database technology for the integrated, uniform management, retrieval, and delivery of media data of different types. While there has been...
Architecture of a DataBlade Module for the Integrated Management of Multimedia Assets (1999)
Advanced multimedia applications require adequate support by database technology for the integrated, uniform management, retrieval, and delivery of media data of different types. While there has been...
ZYX - A Semantic Model for Multimedia Documents and Presentations (1999)
: Existing languages, formats, and multimedia document models such as HTML, MHEG, SMIL, HyTime, SGML, and XML, do not provide the appropriate modeling primitives needed to provide adequate support...
Susanne Boll, Andreas Grüner, Armin Haaf, Wolfgang Klas
. Electronic commerce systems for business-to-business commerce on the Internet are still in their infancy. The realization of Internet electronic markets for business-to-business following a...
Zyx - A Semantic Model For Multimedia Documents And Presentations (1999)
Existing languages, formats, and multimedia document models such as HTML, MHEG, SMIL, HyTime, SGML, and XML, do not provide the appropriate modeling primitives needed to provide adequate support for...
Susanne Boll, Wolfgang Klas, Utz Westermann
Advanced multimedia applications require adequate support for the modeling of multimedia information but also an adequate database technology supporting the integrated management, retrieval,...
Susanne Boll, Andreas Grüner, Armin Haaf, Wolfgang Klas
Electronic commerce systems for business-to-business commerce on the Internet are still in their infancy. The realization of Internet electronic markets for business-to-business following a...
Overview on Using Metadata to manage Multimedia Data (1998)
Susanne Boll, Wolfgang Klas, Amit Sheth
This chapter introduces the reader to the key role that metadata can play for managing various digital media, often also called new media, such as image, audio, and video in information systems. We...
Optimization of Adaptive Data-Flows for Competing Multimedia (1997)
Wolfgang Klas, Crispin Cowan, John Walpole, Calton Pu, Heiko Thimm, Heiko Thimm, ...
publications, specific partial results and complementary material. In the interest of a subsequent final publication the “Arbeitspapiere/Technical Reports ” should not be copied. Critical...
Neuhold: Abstractions for Multimedia Database Systems (1996)
Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
In this article we point out important functionality needed to support advanced multimedia applications by a database management system. We introduce a generic datatype to support the implementation...
Neuhold: Abstractions for Multimedia Database Systems (1996)
Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
In this article we point out important functionality needed to support advanced multimedia applications by a database management system. We introduce a generic datatype to support the implementation...
Research on Multimedia Database Systems at GMD-IPSI (1996)
Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
The Integrated Publication and Information Systems Institute (IPSI) is one of the eight institutes of the
Optimization of Adaptive Data-Flows for Competing Multimedia Presentational Database Sessions (1996)
Wolfgang Klas, Crispin Cowan, John Walpole, Calton Pu, Heiko Thimm, Heiko Thimm, ...
Database systems which support preorchestrated multimedia presentations must be able to adapt the resource demand of executing presentations. Such adaptations can be dictated by underlying resource...
Playout Management In Multimedia Database Systems (1996)
this paper, we do not need to go into further details of the specification of interactive multimedia presentations. We just can assume that they are specified by some appropriate specification means....
Research on Multimedia Database Systems at GMD-IPSI (1996)
Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
this article, we described our approach for the development of MM-DBMSs illustrated by the AMOS MM-DBMS under development at IPSI. The first AMOS prototype implements all client components, the...
. A novel database system service called playout management service which performs multimedia presentations was proposed recently. In distributed multimedia database systems without end-to-end...
Integrated Database Services for Multimedia Presentations (1996)
Susanne Boll, Susanne Boll, Wolfgang Klas, Wolfgang Klas, Michael Löhr, Michael Lohr
Advanced multimedia applications call for integrated database system support for the management of multimedia data. Traditional database management systems do not provide appropriate concepts and...
History Merging as a Mechanism for Concurrency Control in Cooperative Environments (1996)
Jürgen Wäsch, Wolfgang Klas, Wolfgang Klas
Cooperative applications need proper transactional support for coordinating joint activities, sharing of data, and semantically correct exchange of information of collaborating users. Conventional...
Design and Implementation of RMP - A Virtual Electronic Market Place (1996)
Susanne Boll, Wolfgang Klas, Bernard Battaglin
this paper, we report about RMP, a project on Internet commerce for small and medium enterprises (SME) funded by the European Commission
Address all correspondence to: (1995)
Heiko Thimm, Wolfgang Klas, Heiko Thimm, Dr. Wolfgang Klas, Heiko Thimm
publications, specific partial results and complementary material. In the interest of a subsequent final publication the “Arbeitspapiere/Technical Reports ” should not be copied. Critical...
Address all correspondence to: (1995)
Heiko Thimm, Wolfgang Klas, Heiko Thimm, Dr. Wolfgang Klas, Heiko Thimm
The “Arbeitspapiere der GMD – GMD Technical Reports ” primarily comprise preliminary publications, specific partial results and complementary material. In the interest of a subsequent final...
Frank Moser, Achim Kraiß, Wolfgang Klas
Multimedia applications demand specific support from database management systems due to the characteristics of multimedia data and their interactive usage. This includes integrated support for...
IRO-DB - A Distributed System Federating Object and Relational Databases (1995)
Georges Gardarin, Sofiane Gannouni, Béatrice Finance, Peter Fankhauser, Wolfgang Klas, Dominique Pastre, ...
this paper adopts the federated approach to database interoperability [SL90] to overcome these limitations. Unlike homogeneous distributed database management systems, a federated database management...
Multimedia Applications and Their Implications on Database Architectures (1995)
ion : : : : : : : : : : : : : : : : : : : : : : : : : : : 21 4.2.2 Time-dependent data : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 22 4.2.3 Query Processing and Retrieval : : : : :...
Wolfgang Klas, Dr. Wolfgang Klas, Heiko Thimm, Heiko Thimm, Heiko Thimm
A novel database management system service called playout management service dedicated to realizing multimedia presentations was proposed recently. In distributed multimedia database management...
Towards a Cooperative Transaction Model - The Cooperative Activity Model - (1995)
M. Rusinkiewicz, W. Klas, T. Tesch, J. Wäsch, P. Muth, Marek Rusinkiewicz, ...
With the emerge of cooperative applications it turned out that traditional transaction concepts are not suitable for these scenarios. Isolation of transactions, as guaranteed by the ACID transaction...
Playout Management - An Integrated Service of a Multimedia Database Management System (1995)
Wolfgang Klas, Dr. Wolfgang Klas, Heiko Thimm, Heiko Thimm, Heiko Thimm
Playout management subsumes both, lower and higher level system tasks necessary to execute stored multimedia presentations. An elegant way to handle the data management tasks especially for...
Database Integration using the Open Object-Oriented Database System VODAK (1995)
Wolfgang Klas, Peter Fankhauser, Peter Muth, Thomas C. Rakow, E. J. Neuhold, In Omran Bukhres, ...
ion Professor # # # Introduction of a Generalization Abstraction # # Person # # Street City Address City Street Assistant Student # # # # Person # Person # Teacher Student Assistant Professor address...
Frank Moser, Achim Kraid, Wolfgang Klas
Multimedia applications demand specific support from database management systems due to the characteristics of multimedia data and their interactive usage. This includes integrated support for...
Integrating a part relationship into an open OODB system using metaclasses (1994)
Michael Halper, James Geller, Yehoshua Perl, Wolfgang Klas
The part-whole semantic relationship (the part relationship, for short) is an important modeling primitive in many advanced application domains such as manufacturing, design, and document processing....
Integrating a part relationship into an open OODB system using metaclasses (1994)
Michael Halper, James Geller, Yehoshua Perl, Wolfgang Klas
The part-whole semantic relationship (the part relationship, for short) is an important modeling primitive in many advanced application domains such as manufacturing, design, and document processing....
Integrating a Part Relationship into an Open OODB System using Metaclasses (1994)
Michael Halper Dept, Michael Halper, James Geller, Yehoshua Perl, Wolfgang Klas
The part-whole semantic relationship (the part relationship, for short) is an important modeling primitive in many advanced application domains such as manufacturing, design, and document processing....
Efficient Dynamic Look-Up Strategy for Multi-Methods (1994)
Weimin Chen, Volker Turau, Wolfgang Klas
. In object-oriented programming languages, multiple dispatching provides increased expressive power over single dispatching by guiding method lookup using the values of all arguments instead of the...
Efficient Dynamic Look-up Strategy for Multi-Methods (1994)
Weimin Chen, Volker Turau, Wolfgang Klas
Abstract. In object-oriented programming languages, multiple dispatching provides increased expressive power over single dispatching by guiding method lookup using the values of all arguments instead...
Search and Retrieval in Object-Oriented Information Systems (1993)
Neuhold, Erich J., Aberer, Karl, Klas, Wolfgang, Stein, A., Thiel, U.
Object-Oriented Modelling for Hypermedia Systems Using the VODAK Model Language (1993)
Wolfgang Klas, Karl Aberer, Erich Neuhold
this paper we show how this open object-oriented data model can be tailored to the needs of modelling hypermedia documents as they are used in the framework of, e.g., collaborative authoring...
Search and Retrieval in Object-Oriented Information Systems (1993)
Erich J. Neuhold, Karl Aberer, Wolfgang Klas, Adelheit Stein, Ulrich Thiel
In this paper, we outline the features of a knowledge-based retrieval interface MERIT (Multimedia Extensions of Retrieval Interaction Tools), and VODAK, an object-oriented DBMS suitable for...
Designing Intelligent Hypertext Systems using an Open Object-Oriented Database Model (1993)
Wolfgang Klas, Erich J. Neuhold
In this paper we present how an open object-oriented database model can be used for modelling argumentative networks utilized by an authoring system in a hypermedia environment. The concepts of our...
Search and Retrieval in Object-Oriented Information Systems (1993)
Erich J. Neuhold, Karl Aberer, Wolfgang Klas, Adelheit Stein, Ulrich Thiel
In this paper, we outline the features of a knowledge-based retrieval interface MERIT (Multimedia Extensions of Retrieval Interaction Tools), and VODAK, an object-oriented DBMS suitable for...
A transaction model for an open publication environment (1992)
Peter Muth, Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
Different users of a publication environment, e.g., authors, editors, layouters, typesetters, will together produce and distribute a publication. We consider three different kinds of components in...
A transaction model for an open publication environment (1992)
Peter Muth, Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
Different users of a publication environment, e.g., authors, editors, layouters, typesetters, will together produce and distribute a publication. We consider three different kinds of components in...
A Transaction Model for an Open Publication Environment (1992)
Peter Muth, Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold
Different users of a publication environment, e.g., authors, editors, layouters, typesetters, will together produce and distribute a publication. We consider three different kinds of components in...
Tailoring an Object-Oriented Database System to Integrate External Multimedia Devices (1992)
Integrated management of multimedia data and conventional data by database systems requires specific extensions and functionality of DBMSs. The open object-oriented database system VODAK provides...
Persistence in the Object-Oriented Database Programming Language VML (1992)
In this paper the principles of handling persistent objects in the object-oriented database programming language VML are presented. The main design criteria of VML with respect to persistence were:...
Persistence in the Object-Oriented Database Programming Language VML (1992)
In this paper the principles of handling persistent objects in the object-oriented database programming language VML is presented. The main design criteria of VML with respect to persistence were:...
A Transaction Model for an Open Publication Environment (1991)
Peter Muth, Thomas C. Rakow, Wolfgang Klas, Erich J. Neuhold, H. B. Paul, ...
Data Types. ACM TOPLAS 11(2), 249-282, 1989. [WHBM 90] G. Weikum, C. Hasse, P. Broessler, P. Muth: Multi-Level Recovery. Proc. PODS, 1990. [Wie 90] G. Wiederhold, et. al.: A Mediator Architecture for...
Wolfgang Klas, Erich J. Neuhold
In this paper we present how an open object-oriented database model can be used for modelling argumentative networks utilized by an authoring system in a hypermedia environment. The concepts of our...
A Comparison of Multimedia Document Models Concerning Advanced Requirements
Susanne Boll Wolfgang, Wolfgang Klas, Utz Westermann
Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives that meet specific requirements given by advanced multimedia information system...
A Comparison of Multimedia Document Models Concerning Advanced Requirements
Susanne Boll, Wolfgang Klas, Utz Westermann
Existing multimedia document models like HTML, MHEG, SMIL, and HyTime lack appropriate modeling primitives that meet specific requirements given by advanced multimedia information system...