Bogdan Bilodid

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This paper represents a performance comparison between Skype, a popular P2P-based VoIP Internet application, and tradition VoIP clients, such as Windows Live Messenger and Yahoo Messenger, which use client-server model. In order to draw a conclusion the main parameters that determine usability of the software were analyzed. These parameters are connection(More)
The ontology-based approach for relational databases integration is proposed. Mapping of the relational sche-mas into one ontology and further translation of SPARQL-queries into SQL-queries are fundamental point of approach. The result provides a unified access interface in the form of SPARQL-end point.
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