HadoopDB is a hybrid of MapReduce and DBMS technologies, designed to meet the growing demand of analyzing massive datasets on very large clusters of machines. Our previous work ha...
In the Semantic Web, RDF (Resource Description Framework) and RDF Schema are commonly used to describe metadata. There are a great many RDF data in current web, therefore, efficien...
Information sharing can be effective with structured data. However, there are several challenges for having structured data on the web. Creating structured concept definitions is ...
Abstract Practical description logic systems play an ever-growing role for knowledge representation and reasoning research even in distributed environments. In particular, the onto...
We propose location-mediated service coordination in ubiquitous computing. In the coordination, middle agents determine bestmatched services for a user by considering the user’s...