In this paper, we describe representations and inference techniques that are used in the RoboEarth system for the web-based exchange of information between robots. We present novel representations for environment maps that combine expressive semantic environment models with techniques for selecting suitable maps from the web-based RoboEarth knowledge base. We further propose techniques for impr...

We consider the problem of exchanging information in a network, where every node can communicate with every other node through a common channel. In our model, every node wishes to exchange some local information (perhaps about a third party) with every other node in the network through the common channel. We provide the rate region for this fully connected network. The rate region we compute ca...

Knowledge base exchange is an important problem in the area of data exchange and knowledge representation, where one is interested in exchanging information between a source and a target knowledge base connected through a mapping. In this paper, we study this fundamental problem for knowledge bases and mappings expressed in OWL 2 QL, the profile of OWL 2 based on the description logic DL-LiteR....

While providing a uniform syntax and a semistructured data model, XML does not express semantics but only structure such as nesting information. In this paper, we consider the problem of data integration and interoperation of heterogeneous XML sources and use an ontology-based framework to address this problem at a semantic level. Ontologies are extensively used for domain knowledge representat...

once was. Why do cells devote resources to altering the biochemistry. Many of these chapters are written from meaning of the nucleotide sequences originally speci-a broad historical perspective that is not accessible fied in their genomes? While not providing a simple through the primary literature. The level of detail in some answer to this question, O ¨ hman and Bass succeed in chapters might...