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Following analyzing existing challenges in addressing the balance between exploration and exploitation encountered by evolutionary algorithms, this paper develops a Genetic Algorithm with speciation (GASP). It first incorporates a novel encoding scheme and recombination method for a balanced genetic divergence when locating global optima in complex applications, such as structural and dynamic design...
In opportunistic networks, network topology constantly changes and instantaneous end-to-end paths are not available, nodes have narrow transmission ranges, limited storage space and energy. Lately, the consideration of social characteristics provides a new vision in the design of routing protocols and many routing protocols have been proposed to overcome the challenging conditions in the opportunistic...
The universal multiple outlier hypothesis testing problem is studied in two settings. In the first setting, each outlier can be arbitrarily distributed, and the number of outliers is fixed and known. In the second setting, the number of outliers is unknown at the outset. Nothing is known about the typical and outlier distributions other than that they are different and have full supports. For the...
The prior studies setup the churn model by measuring the historical logs or records of a P2P network, and treat it as one whole black-box without understanding the inside of peer's population. The metrics used to characterize the churn is distributions of the node session lengths and arrival intervals. We investigate churn in a higher level point of view, and find that modeling it based on the global...
The dynamics of peer participation, or churn, is critical for design, implementation and evaluation of Peer-to-peer (P2P) systems. The metrics used to characterize the churn is distributions of the node session lengths and arrival intervals. The prior studies setup the model by measuring the historical logs or records, and treat the churn as one whole black-box without understanding the inside of...
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