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In order to precisely study the advertisers' bidding behavior, in this paper, we proposed a HMM(Hidden Markov Model) forecasting model using the historical auction data of advertisers, and predicted the advertisers' bidding sequences in the future with this model. In the process of establishing HMM model for advertisers' bidding behavior, we define the bidding as the hidden variable, and define the...
Segmentation of underwater objects using sonar imagery is complicated by the variability of objects, noises, and background. Through analyzing the features of sonar imagery, we propose a new algorithm which can carry on automatic segmentation on sonar imagery. After noise reduction and image normalization, we adopt the self-adaptive variance algorithm and the fractal dimension algorithm to segment...
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