Auflistung Informatik-Berichte nach Titel
Anzeige der Publikationen 44-63 von 66
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2008-01-01BuchNPART - Node Placement Algorithm for Realistic Topologies in Wireless Multihop Network Simulation Despite a considerable number of topology generation algorithms for simulation of wireless multihop networks it is difficult to find one with output similar to real networks [13]. In this paper, we propose NPART { a Node ...
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2008-05-11BuchOclets Usually, a component in a distributed system has assumptions about the remaining components of the system. A change in one component might require to change other components as well. It may happen that the change has to ...
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2006-04-12BuchOn the Distance of Databases We study the novel problem of efficiently computing the update distance for a pair of relational databases. In analogy to the edit distance of strings, we define the update distance of two databases as the minimal number ...
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2005-04-19BuchOperating Guidelines - an Alternative to Public View
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2006-01-01BuchOperating Guidelines for Finite-State Services We introduce the concept of an operating guideline for an arbitrary finite-state service P, extending the work of [1, 2] which was restricted to acyclic services. An operating guideline gives complete information about how ...
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2005-06-30BuchParallel event detection in active database systems This paper proposes a strategy for parallel composite event detection in Active database systems (DBS). Up to now, the detection is sequential and totally synchronized, and thus preserves the timely order of events during ...
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1996-05-22BuchPetri Net Based Verification of Distributed Algorithms A technique to describe and to verify distributed algorithms is suggested. This technique (based on Petri nets) reduces the modelling- and analysis effort to a reasonable expenditure. The paper outlines the technique along ...
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1996-08-01BuchPetrinetzmodelle zur Verifikation Verteilter Algorithmen
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2007-09-21BuchPrototyping and Simulating Domain-Specific Languages for Wireless Sensor Networks The development of software for wireless sensor networks is involved and complex. This does not only impose much work on programmers but also prevents domain experts from directly contributing parts of the software. ...
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2005-04-19BuchQuality-driven Integration of Heterogeneous Information Systems
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2010-01-01BuchRDFMatView The Semantic Web as an evolution of the World Wide Web aims to create a universal medium for the exchange of semantically described data. The idea of representing this information by means of directed labelled graphs, ...
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2006-01-01BuchReduction Rules for Interaction Graphs The internet today has grown to be more than just being a basis for exchanging information. It steadily becomes a platform for processing business processes. Many companies distribute their service with the help of web ...
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2006-01-01BuchRelationship-Based Duplicate Detection Recent work both in the relational and the XML world have shown that the efficacy and efficiency of duplicate detection is enhanced by regarding relationships between ancestors and descendants. We present a novel comparison ...
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2006-01-01BuchReliability Modeling of Proactive Fault Handling Research on dependable computing is undergoing a shift from traditional fault tolerance towards techniques that handle faults proactively. These techniques comprise two parts: (a) prediction of failures and (b) actions ...
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2005-07-06BuchSDL Specification and Simulation of TDM/CDMA VSAT Integrated Service Satellite Communication Network SDT'88, an implemented tool of SDL'88, is employed for description and simulation of TDM/CDMA VSAT Integrated Service Satellite Communication Network. A complete specification of this large scale system, which includes ...
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2010-01-01BuchService Discovery Using Communication Fingerprints A request to a service registry must be answered with a service that fits in several regards, including semantic compatibility, non-functional compatibility, and interface compatibility. In the case of stateful services, ...
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2009-01-01BuchSeven Scenarios for Context-aware Systems We show present seven scenarios for context-ware systems that were developed by groups of students in a Master’s-level course at Humboldt University Berlin during the Summer semester 2009. The goal was to write scenarios ...
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2008-01-01BuchSimulating and reconstructing language change In this work we probe phylogenetic algorithms for their ability to reconstruct historic language relationships. We present a formal model for the development of languages incorporating vertical (genealogical) and horizontal ...
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2005-02-28BuchStoring and Querying Historical Texts in a Relational Database Diese Arbeit beschreibt einen Ansatz für die Speicherung und Anfrage eines großen Korpus linguistisch annotierter historischer Texte mit Hilfe eines relationalen Datenbanksystems. Texte in solch einem Korpus haben ...
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2005-06-30BuchThe Dimensions of Petri Nets: The Petri Net Cube There exist many different Petri net formalisms. In this paper, we present the Petri Net Cube which helps to structure and classify the variety of Petri net formalisms. We show, that three basic aspects are sufficient for ...