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Multi-robot system has become the hot issue in the last decades because of its efficiency, robustness, scalability and global optimality. This work proposes a multi-robot patrol strategy for environment monitoring. First, we propose the function of patrol nodes generating under the circumstances of known probability distribution of emergency. Then we put forward the hierarchy immune clustering algorithm...
Due to the facts of wireless data usage being increasing faster now than ever before and more multimedia content being generated by users and uploaded to the network, multi-user MIMO (MU-MIMO) technology would be crucial to improve the LTE-A uplink spectral efficiency for meeting the service demands. On the other side, adopting clustered SC-FDMA technology as the uplink multiple access scheme of LTE-A...
Saleh-Valenuela model was modified by both IEEE802.15.3a and IEEE802.15.4a task group, and became the standard channel model for UWB indoor environment. Cluster must be identified before any Saleh-Valenuela model parameters can be extracted. Past efforts have developed a lot of algorithms on cluster identification, but most of them ignored either the exponentially decay of power delay profile (PDP)...
Due to homonyms, abbreviations, etc., name ambiguity is widely available in Web and e-document. For example, when integrating heterogeneous literature databases, because there are different name specifications, different authors may be thought of as the same author, and vice versa. Therefore, name ambiguity makes data robust even dirty and lowers the precision of information retrieval. In this paper,...
Due to diversity of data formats, missing of certain properties, imprecise records in heterogeneous literature databases, there exist duplicate records when integrating heterogeneous databases. Duplicate records lower the efficiency of information retrieval. In this paper, we propose an approach, named length filtering and dynamic weighting (LFDW) for duplicate records cleansing. There are three steps...
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