Now showing 1 - 9 of 9
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Emergent semantics - Extended and revised version of the DASFAA 2004 paper

2004 , Aberer, K. , Catarci, T. , Cudre-Mauroux, P. , Dillon, T. , Grimm, S. , Hacid, M.-S. , Illarramendi, A. , Jarrar, M. , Kashyap, V. , Mecella, M. , Mena, E. , Neuhold, E.J. , Ouksel, A.M. , Risse, T. , Scannapieco, M. , Saltor, F. , Santis, L. de , Spaccapietra, S. , Staab, S. , Studer, R. , Troyer, O. de

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Combining Pat-Trees and Signature Files for Query Evaluation in Document Databases

1999 , Chen, Y. , Aberer, K.

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Rule-based generation of logical query plans with controlled complexity

1997 , Aberer, K. , Che, D. , Böhm, K.

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Configuration of distributed message converter systems

2004 , Risse, T. , Aberer, K. , Wombacher, A. , Surridge, M. , Taylor, S.

Finding a configuration of a distributed system satisfying performance goals is a complex search problem that involves many design parameters, like hardware selection, job distribution and process configuration. Performance models are a powerful tool to analyze potential system configurations, however, their evaluation is expensive, such that only a limited number of possible configurations can be evaluated. In this paper we present a systematic method to find a satisfactory configuration with feasible effort, based on a two-step approach. First, performing a queuing network analysis a hardware configuration is determined and then a software configuration is incrementally optimized by simulating Layered Queuing Network models. We applied this method to the design of performant EDI converter systems in the financial domain, where increasing message volumes need to be handled due to the growing importance of B2B interaction.

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Adaptive Outsourcing in Cross-Organizational Workflows

1999 , Klingemann, J. , Wäsch, J. , Aberer, K.

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Administering structured documents in digital libraries

1995 , Böhm, K. , Aberer, K. , Neuhold, E.J.

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Modelling the ICE standard with a formal language for information commerce

2001 , Wombacher, A. , Aberer, K.

Automatizing information commerce requires languages to represent the typical information commerce processes. Existing languages and standards cover either only very specific types of business models or are too general to capture in a concise way the specific properties of information commerce processes. We introduce a language that is specifically designed for information commerce. It can be directly used for the implementation of the processes and communication required in information commerce. We demonstrate the use of the language by applying it to an important standard for specifying information commerce processes, the ICE Information and Content Exchange protocol [ICE1]. By doing so we also illustrate the benefit of using formal specifications for information commerce processes allowing to capture informal specifications, like ICE, in a concise way.

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An admission control framework for applications with variable consumption rates in client-pull architectures

1998 , Hollfelder, S. , Aberer, K.

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

1994 , Aberer, K. , Klas, W. , Furtado, A.L.