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The critical issue that confronts peer-to-peer networks is the efficient location of the node that stores a desired data item. Chord is a successful resource location protocol based on distributed hash table. However, if the desired data item is stored on a node that is count-clockwise close to the query node on the chord ring, the lookup latency might be high because of its clockwise lookup strategy...
A modified differential evolution (MDE) algorithm is introduced to solve the problems of substation location optimization based on GIS. Numerical study is carried out by using three test-functions to the MDE algorithm which introduces inertia scaling factor, and the result is compared with that of dynamic differential evolution .Analysis results show that the efficiency of modified differential evolution...
Affective content analysis is an unsolved technical problem in sophisticated video retrieval and high-level applications. In order to recognize emotion types of video scenes, a new algorithm, which composes of two sub-models, is proposed. Firstly, the sub-models of two low-level features extraction are built up based on the film grammars. Secondly, a classification sub-model of scene emotion is presented...
In order to suppress effectively the effects of RSSI error to wireless sensor networks node localization's precision in pervasive computing environment, individual diversity difference coefficient, distance difference coefficient and distance difference localization equation is defined based on the analysis of the models of maximum likelihood estimation and RSSI. The closest beaconing node to object...
Mobile environment has been one of focuses of computing, communication and management. Mobile review ranking problem, for the first time, is brought out in this paper. Also, a novel ranking algorithm, TiCom, is proposed for mobile review ranking. TiCom is based on the idea of time compensation, and is used to prevent fresh voting item from being ranked too high or too low. Experimental results show...
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