In order to better solve the problem of distributed query optimization,a query optimization algorithm on gene expression programming(GEP)(QO-GEP)is presented.On
Four types of variable-rate convolutional network codes are investigated over a single-source finite cyclic network.It is found that variable-rate generic,dispe
This article addresses the multicast resource allocation problem with min-rate requirement constraints in orthogonal frequency division multiplexing (OFDM) syst
The flood and drought across the Yangtze and Huaihe River(Jianghuai)areas are frequent in summer,especially in June and July.Therefore,predicting the summer flo