W. Klas

The paper describes recent progress in research on database system support for executing multimedia presentations. It proposes the general concept of Reactive Playout Management to adjust multimedia...

Abstract (2007)

Cardio-OP: A Model for Education and Information of Different User Groups in Cardiac Surgery Using On-Line Database Support (2007)

The paper describes recent progress in research on database system support for executing multimedia presentations. It proposes the general concept of Reactive Playout Management to adjust multimedia...

R. Friedl, W. Klas, C. Greiner, M. Schefer, M. Preissack, P. Engels, ...

Introduction Multimedia technologies play an increasing role in teaching different aspects of cardiac surgery. These efforts are limited by the tremendous resources of time and money required...

{thimm, klas} @ darmstadt.gmd.de (2007)

Building a Hybrid Database Application for Structured Documents (1999)

The paper describes recent progress in research on database system support for executing multimedia presentations. It proposes the general concept of Reactive Playout Management to adjust multimedia...

Böhm, K., Aberer, K., Klas, W.

The TransCoop Transaction Model (1998)

Klingemann, J., Tesch, T., Wäsch, J., Klas, W.

Research on Multimedia Database Systems at GMD-IPSI (1998)

Rakow, T.C., Klas, W., Neuhold, E.J.

Database Integration Using the Open Object-Oriented Database System VODAK (1998)

Klas, W., Fankhauser, P., Muth, P., Rakow, T.C., Neuhold, E.J.

Tne TransCoop Transaction Model (1998)

Klingemann, J., Tesch, T., Wäsch, J., Klas, W.

Tansanction Support for Cooperative Systems (1998)

Klas, W., By, R.d., Veijalainen, J.

Current and Emerging Applications in Multimedia Databases in Perspective (1997)

Klas, W., Vries, A.P. De, Breiteneder, C.

Entry for Transcoop book (1997)

By, R.A. De, Klas, W., Veijalainen, J.

Chapter 1: Introduction (1997)

Klas, W., By, R.A. De, Veijalainen, J.

Optimization of adaptive data-flows for competing multimedia presentational database sessions (1997)

Thimm, H., Klas, W., Cowan, C., Walpole, J., Pu, C.

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...

Research on multimedia database systems at GMD-IPSI (1996)

Rakow, T.C., Klas, W., Neuhold, E.J.

IRO-DB: A distributed system federating object and relational databeses (1996)

Gardarin, G., Gannouni, S., Finance, B., Klas, W., Pastre, D., Legoff, R., ...

Integrated database services for multimedia presentations (1996)

Boll, S., Klas, W., Löhr, M.

Delta-sets for optimized reactive adaptive playout management in distributed multimedia database systems (1996)

History merging as a mechanism for concurrency control in cooperative environments (1996)

Wäsch, J., Klas, W.

IRO-DB: Making relational and object-oriented database systems interoperable (1996)

Fankhauser, P., Finance, B., Klas, W.

Managing Adaptive presentation executions in distributed multimedia database systems (1996)

Thimm, H., Klas, W., Cowan, C., Pu, C., Walpole, J.

Database integration using the open object-oriented multidatabase system VODAK (1996)

Klas, W., Fankhauser, P., Muth, P., Rakow, T.C., Neuhold, E.J.

Optimization of adaptive data-flows for competing multimedia presentational database sessions (1996)

Thimm, H., Klas, W., Cowan, C., Walpole, J.

Adaptability trees for multimedia presentations (1996)

Managing adaptive presentation executions in distributed multimedia database systems (1996)

Thimm, H., Klas, W., Walpole, J., Pu, C., Cowan, C.

Abstractions for multimedia database systems (1996)

Rakow, T.C., Klas, W., Neuhold, E.J.

Playout management in multimedia database systems (1996)

Managing Adaptive Presentation Executions in Distributed Multimedia Database Systems (1996)

H. Thimm, W. Klas

The paper describes recent progress in research on database system support for executing multimedia presentations. It proposes the general concept of Reactive Playout Management to adjust multimedia...

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...

Multimedia applications and their implications on database architectures (1995)

Klas, W., Aberer, K.

Playout management - an integrated service of a multimedia database management system (1995)

Towards a cooperative transaction model - The cooperative activity model (1995)

Rusinkiewicz, M., Klas, W., Tesch, T., Muth, P.

L/MRP: A buffer management strategy for interactive continuous data flows in a multimedia DBMS (1995)

Moser, F., Kraiß, A.B., Klas, W.

Multimediales Informationsmanagement (1995)

Klas, W., Neuhold, E.J.

Delta-sets for optimized reactive adaptive playout management in distributed multimedia database systems (1995)

Playout management: An integrated service of a multimedia database management system (1995)

Reactive playout management adapting multimedia presentations to contradictory constraints (1995)

Towards a cooperative transaction model: The cooperative activity model (1995)

Rusinkiewicz, M., Klas, W., Tesch, T., Wäsch, J., Muth, P.

Towards a Cooperative Transaction Model - The Cooperative Activity Model - (1995)

M. Rusinkiewicz, W. Klas, T. Tesch, J. Wäsch, P. Muth

With the emergence of cooperative applications it turned out that traditional transaction concepts are not suitable for these scenarios. Isolation of transactions, as guaranteed by the ACID...

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...

Managing Adaptive Presentation Executions in Distributed Multimedia Database Systems (1995)

Supporting temporal multimedia operations in object-oriented database management systems (1994)

The paper describes recent progress in research on database system support for executing multimedia presentations. It proposes the general concept of Reactive Playout Management to adjust multimedia...

Aberer, K., Klas, W.

Designing a user-oriented query modification facility in object-oriented database systems (1994)

Aberer, K., Klas, W., Furtado, A.L.

Efficient dynamic look-up strategy for multi-methods (1994)

Chen, W., Turau, V., Klas, W.

Database Research at GMD-IPSI (1994)

Klas, W.

Integrating a relational database system into VODAK using its metaclass concept (1994)

Klas, W., Fischer, G., Aberer, K.

Designing a User-Oriented Query Modification Facility (1994)

K. Aberer, W. Klas, A. L. Furtado

Abstract. The introduction of user-assisting features into database systems is discussed along two stages. The first stage involves a basic facility that can be used with standard database systems,...

User-Oriented Query Modification in Metaclasses Systems (1994)

K. Aberer, W. Klas, A. L. Furtado

The introduction of user-assisting features into database systems is discussed along two stages. The first stage involves a basic facility that can be used with standard database systems, whereas in...

Designing a User-Oriented Query Modification Facility in Object-Oriented Database Systems (1994)

K. Aberer, W. Klas, A. L. Furtado

. The introduction of user-assisting features into database systems is discussed along two stages. The first stage involves a basic facility that can be used with standard database systems, whereas...

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

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

User-oriented query modification in metaclass systems (1993)

Aberer, K., Klas, W., Furtado, A.L.

Persistence in the object-oriented database programming language VML (1993)

Klas, W., Turau, V.

Integrating a relational database system into VODAK using its metaclass concept (1993)

Klas, W., Fischer, G., Aberer, K.

The impact of multimedia data on database management (1993)

Aberer, K., Klas, W.

User-Oriented Query Modification in Metaclass Systems (1993)

K. Aberer, W. Klas, A.L. Furtado

The introduction of user-assisting features into database systems is discussed along two stages. The first stage involves a basic facility that can be used with standard database systems, whereas in...

How to handle global transactions in heterogeneous database systems (1992)

Muth, P., Klas, W., Neuhold, E.J.

A transaction model for an open publication environment (1992)

Muth, P., Rakow, T.C., Klas, W., Neuhold, E.J.

Was heißt eigentlich 'objekt-orientiertes Datenbanksystem' (1991)

Klas, W.

Objektorientierte Datenbanken: Neue Wege der Datenverwaltung (1991)

Klas, W.

Objektorientierte Datenbanksysteme erleichtern die Verwaltung und Verarbeitung von großen Mengen hochstrukturierter Daten durch Integration objektorientierter Konzepte mit konventioneller...

A transaction model for an open publication environment (1991)

Muth, P., Rakow, T.C., Klas, W., Neuhold, E.J.

Using an object-oriented approach to model multimedia data (1990)

Designing intelligent hypertext systems using an open object-oriented data model (1990)

Klas, W., Neuhold, E.J.

Metaclasses in VODAK and their application in database integration (1990)

Metaclasses in VODAK and their Application in Database Integration (1990)

W. Klas, E.J. Neuhold, M. Schrefl, Wolgang Klas

Object-oriented data models organize objects according to common properties into classes. Similarly, some object -oriented systems organize classes into metaclasses which define common properties of...

Tailoring object-oriented data models through metaclasses (1989)

Visual databases need datamodels for multimedia data (1989)

Tailoring object-oriented data models through metaclasses (1989)

On an object-oriented data model for applications (1988)