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The result purity of traditional LDA (Latent Dirichlet Allocation) is uninterpretable because it is always difficult to summarize the meaning of each LDA result topic which contains multiple irrelevant words. To solve the problem, a method of optimizing LDA result purity based on semantic similarity in streaming news processing is proposed. In this method, the Category Cluster Density (CCD) of each...
Green building (GB) has become an important new direction of research in the architectural realm during the last decade. With constantly emerging new technologies, materials, methods and tools, contemporary GB design gradually possesses more comprehensive features compared to many traditional buildings. This paper indicates the multi-disciplinary feature of GB design implied in existing environmental...
For Tibet, sustainable development requires cheap, secure and environmental-friendly energy supply and use. None of the current energy options, including cow dung, coal, and natural gas, and the current ways of their use for heating could fully meet the needs of growing economy and sustainability requirements. Evolutionary changes in the current energy systems to improve efficiency and reduce greenhouse...
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