33 Result(s)
within
Information Systems Applications (incl. Internet)
Birgitta König-Ries
Conference Paper
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Chapter and Conference Paper
An architecture for transparent access to semantically heterogeneous information sources
We propose an agent architecture that provides transparent access to a set of distributed, heterogeneous, and autonomous information sources. Our objectives are twofold: First, we want to support quick develop...
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Chapter and Conference Paper
An Approach to the Semi-automatic Generation of Mediator Specifications
Mediator architectures have become popular for systems that aim at providing transparent access to heterogeneous information sources. Similar to a view on a database, a mediator answers queries posed against t...
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Chapter and Conference Paper
Strategies for Semantic Caching
One major problem with the use of mediator-based architectures is long query response times. An approach to shortening response times is to cache data at the mediator site. Recently, there has been growing int...
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Chapter and Conference Paper
Multi-layer Clusters in Ad-hoc Networks — An Approach to Service Discovery
One of the core functionalities needed in ad-hoc peer-to-peer networks is service discovery. However, none of the existing solutions for service discovery work well in these dynamic, decentralized environments...
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Chapter and Conference Paper
Research Direction for Develo** an Infrastructure for Mobile & Wireless Systems: Consensus Report of the NSF Workshop Held on October 15, 2001 in Scottsdale, Arizona
The recent NSF Workshop on Infrastructure for Mobile and Wireless Systems, held on Oct. 15, 2001 in Phoenix had a goal of defining and establishing a common infrastructure for the discipline of mobile wireless...
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Chapter and Conference Paper
A Process and a Tool for Creating Service Descriptions Based on DAML-S
In distributed environments, collaboration is often achieved with the help of services. To enable automatic service trading, semantically expressive, automatically comparable, flexible, and editable service de...
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Chapter and Conference Paper
Stepwise Refinable Service Descriptions: Adapting DAML-S to Staged Service Trading
In order for service-oriented architectures to become successful, powerful mechanisms are needed that allow service requestors to find service offerers that are able to provide the services they need. Typicall...
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Chapter and Conference Paper
Coupled Signature and Specification Matching for Automatic Service Binding
Matching of semantic service descriptions is the key to automatic service discovery and binding. Existing approaches split the matchmaking process in two step: signature and specification matching. However, th...
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Chapter and Conference Paper
Activity-Based User Modeling in Service-Oriented Ad-Hoc-Networks
Wireless network research still lacks methods to integratively evaluate the performance that can be expected from application layer protocols. The user behavior is predominantly affecting network performance a...
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Chapter and Conference Paper
Engineering Incentive Schemes for Ad hoc Networks
In ad hoc networks, devices have to cooperate in order to compensate for the absence of infrastructure. Yet, autonomous devices tend to abstain from cooperation in order to save their own resources. Incentive ...
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Chapter and Conference Paper
The Interactive Cooperation Tournament
Distributed reputation systems are a self-organizing means of supporting trusting decisions. In general, the robustness of distributed reputation systems to misbehavior is evaluated by the means of computer ba...
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Chapter and Conference Paper
A New View on Normativeness in Distributed Reputation Systems
Autonomous entities in artificial societies are only willing to cooperate with entities they trust. Reputation systems keep track of the entities’ behavior and, thus, are a widely used means to support trust f...
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Chapter and Conference Paper
Dynamic Binding for BPEL Processes – A Lightweight Approach to Integrate Semantics into Web Services
The area of service oriented computing stretches between two extremes: On the one hand industry has pushed a whole stack of WS-* standards and tools to support the integration of distributed services into busi...
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Chapter and Conference Paper
Supporting Dynamics in Service Descriptions - The Key to Automatic Service Usage
In realistic settings, service descriptions will never be precise reflections of the services really offered. An online seller of notebooks, for instance, will most certainly not describe each and every notebo...
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Chapter and Conference Paper
Adaptive Portals: Context Adaptive Navigation through Large Information Spaces
Today, Portals provide users with a central point of access to companywide information. Initially they focused on presenting the most valuable and widely used information to users for efficient information acc...
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Chapter and Conference Paper
Recommending Background Information and Related Content in Web 2.0 Portals
Modern Web 2.0 Portals have become highly collaborative participation platforms. Users do not only retrieve information, they even contribute content. Due to the large number of different users contributing, W...
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Chapter and Conference Paper
A Comparison on MANETs’ Service Replication Schemes: Interest versus Topology Prediction
Mobile ad hoc networks (MANETs) are characterized by high dynamics in particular with respect to the formation of network partitions. The presence of unconnected partitions makes the deployed services inaccess...
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Chapter and Conference Paper
IntrospectiveViews: An Interface for Scrutinizing Semantic User Models
User models are a key component for user-adaptive systems. They represent information about users such as interests, expertise, goals, traits, etc. This information is used to achieve various adaptation effect...
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Chapter and Conference Paper
Measures for Benchmarking Semantic Web Service Matchmaking Correctness
Semantic Web Services (SWS) promise to take service oriented computing to a new level by allowing to semi-automate time-consuming programming tasks. At the core of SWS are solutions to the problem of SWS match...
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Chapter and Conference Paper
Semantic Services for Information and Management Support in Mass Casualty Incident Scenarios
Operation managers in mass casualty incidents (MCI) are easily overwhelmed by the highly dynamic scenario. Today, they are often supported by paper-based checklists that help ensure that nothing important gets ov...
