23 Result(s)
within
Conference Paper
Birgitta König-Ries
Database Management
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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
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
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
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
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
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
Open Social Student Modeling: Visualizing Student Models with Parallel IntrospectiveViews
This paper explores a social extension of open student modeling that we call open social student modeling. We present a specific implementation of this approach that uses parallel IntrospectiveViews to visuali...
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Chapter and Conference Paper
An Introduction to the Data Retrieval Facilities of the XQt Language for Scientific Data
Scientific data is stored in a wide variety of different formats. While much recent research and development have focused on specialized languages and tools to fulfill the requirements of specific domains or d...
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Chapter and Conference Paper
Dynamic Strategies for Query Constructing and Rank Merging from Multiple Search Engines
Heterogeneous search engines differ in the algorithms they use and the domains they cover, thus there is no single search engine that performs best in every circumstance. In order to obtain optimal search resu...
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Chapter and Conference Paper
Semantic User Profiles: Learning Scholars’ Competences by Analyzing Their Publications
Semantic publishing generally targets the enhancement of scientific artifacts, such as articles and datasets, with semantic metadata. However, smarter scholarly applications also require a better model of their u...
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Chapter and Conference Paper
REPRODUCE-ME: Ontology-Based Data Access for Reproducibility of Microscopy Experiments
It has always been the aim of every scientist to make their work reproducible so that the scientific community can verify and trust the experiment results. With more complex in vivo and in vitro studies, achievin...
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Chapter and Conference Paper
A Particle Swarm-Based Approach for Semantic Similarity Computation
Semantic similarity plays a vital role within a myriad of shared data applications, such as data and information integration. A first step towards building such applications is to determine concepts, which are...
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Chapter and Conference Paper
Combining P-Plan and the REPRODUCE-ME Ontology to Achieve Semantic Enrichment of Scientific Experiments Using Interactive Notebooks
End-to-end reproducibility of scientific experiments requires scientists to share their experimental data along with the computational environment. Interactive notebooks have recently gained widespread popular...
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Chapter and Conference Paper
\(\mathcal {C}\) o \(\mathcal {M}\) erger: A Customizable Online Tool for Building a Consistent Quality-Assured Merged Ontology
Merging ontologies enables the reusability and interoperability of existing knowledge. With growing numbers of relevant ontologies in any given domain, there is a strong need for an automatic, scalable multi-o...
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Chapter and Conference Paper
Toward OWL Restriction Reconciliation in Merging Knowledge
Merging ontologies is the standard way to achieve interoperability of heterogeneous systems in the Semantic Web. Because of the possibility of different modeling, OWL restrictions from one ontology may not nec...
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Chapter and Conference Paper
Towards a Core Ontology for Hierarchies of Hypotheses in Invasion Biology
With a rapidly growing body of knowledge, it becomes more and more difficult to keep track of the state of the art in a research field. A formal representation of the hypotheses in the field, their relations, ...
