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We design a metric to measure the occupied holding time difference of frequency slots. With the metric, a routing and spectrum allocation algorithm in dynamic scenario is proposed to improve the network spectral utilization. Evaluation results show the proposed algorithm outperforms obviously in blocking probability.
The sentiment mining is a fast growing topic of both academic research and commercial applications, especially with the widespread of short-text applications on the Web. A fundamental problem that confronts sentiment mining is the automatics and correctness of mined sentiment. This paper proposes an DLDA (Double Latent Dirichlet Allocation) model to analyze sentiment for short-texts based on topic...
MB-tree, a new index structure for spatial data, its unique data partitioning method is the foundation of MBSQ algorithm proposed in this paper. Partition data space according to the x coordinate and y coordinate alternately until the number of data in each MBR is less than M. Using the dominance relationship between the point and MBR, the MBR and MBR, the middle nodes in the algorithm for skyline...
Forest type identification is one of most important contents of forest inventory. K nearest-neighbour algorithm has already proven their use in forest mapping. However, as the remote sensing data was large scale, the efficiency of processing based on KNN decreased seriously. Therefore, the study implemented a tool which could have the feature of fast processing multi-spectral data based on KNN. For...
We provide a whole scheme design of the DSP part for POLMUX-NRZ-DQPSK coherent receiver, in which the adoptive algorithm of each module and preferred parameter value of algorithm are discussed. Finally, we demonstrate 8×112Gbit/s DWDM transmissions with a 50GHz channel-spacing over 2000km of SSMF by using the digital coherent receiver.
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