Fu-Rong Jean

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The frame rate of the observation sequence in distributed speech recognition applications may be reduced to suit a resource-limited front-end device. In order to use models trained using full-frame-rate data in the recognition of reduced frame-rate (RFR) data, we propose a method for adapting the transition probabilities of hidden Markov models (HMMs) to(More)
—In orthogonal frequency division multiple access (OFDMA) system, the multiple access interference (MAI) is a critical factor that significantly degrades system performance. In this research, a genetic algorithm (GA) is employed for joint channel estimation and multiuser detection. For improving the weakness of GA in exploitation, an approach called(More)
—A new approach named MPSO-TS, which combines the advantages of particle swarm optimization (PSO) in global search, Tabu search (TS) technique in local search, and the mutation operation in improving solution diversity, is presented in this study. Experimental result obtained with ten benchmark functions illustrates that the proposed MPSO-TS is superior to(More)