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The exchange of information and the cooperation of enterprise information systems play a key role in the development of applications based on merging data from a diversity of sources. Data sources can be stored in traditional databases and are increasingly available in semi-structured formats, including dynamic web pages, which can be accessed through web forms. To alleviate the inherent heterogeneity...
The ability to convert between different data formats is important in large and heterogeneous information systems. Although XML was established as an universal standard for data exchange, XML-related languages like XQuery lack the ability to access data in other formats; in particular, relational data and RDF. In this paper, we describe TriQuery - an extension of the XQuery language which adds records...
“Network Information System” has emerged as an important research field. Researchers in computer science have successfully developed some network technologies includes security solutions, information query protocols, and data management services. However, along with the development of wireless network technology, there is a need of solution for efficient information interaction re-scheduling in the...
Caching stores the results of previously answered queries in order to answer succeeding queries faster by reusing these results. We propose two different approaches for using caches of XSLT transformed XML data in order to answer queries. The first approach checks whether or not a current query Q can be directly answered from the result of a previously answered query Qi stored in the cache. The new...
This paper presents a design ontology that deals with the hypermedia presentation aspects involved in the development of a semantic Web information system. The ontology is driven by two main design models: the conceptual and the application models. The application model extends the conceptual model with presenting data and inferring. During the presentation generation the input data goes through a...
The following topics are dealt with: data engineering; Web retrieval; query processing; database management system; business data processing; frequent pattern mining; data structure; XML; data mining; information systems; sensor networks; video retrieval; and peer-to-peer networks.
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