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Background Ontology development, as an increasingly practical vehicle applied in various fields, plays a significant role in knowledge management. This paper, focusing on constructing and querying a hepatitis ontology, aims to provide a framework for ontology-based medical services. The paper is devoted to the algorithm of query expansion for the hepatitis ontology, including synonym expansion, hypernym/hyponym...
The coil sensitivity distribution is one of the most essential elements of any parallel imaging methods, which provides the spatial information for unfolding the aliased images due to under sampling. In general, there are two basic calibration methods to obtain the coil information: pre-scan and autocalibration. In this paper, the standard and advanced calibrating methods for coil sensitivity estimation...
An intrusion detection system (IDS) attempts to identify attacks by comparing collected data to predefined signatures known to be malicious (signature-based IDS) or to a model of legal behaviour (anomaly-based IDS). Anomaly-based approaches have the advantage of being able to detect previously unknown attacks, but they suffer from the difficulty of building robust models of acceptable behaviour which...
The rapid development in wireless communication and mobile computing brings the booming of intelligent location-based services (LBS), which can actively push location-dependent information to mobile users according to their predefined interests. The successful development and deployment of push-based LBS applications rely heavily on the existence of a spatial publish/subscribe middleware that handles...
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