Ya-li Liang

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Evaluation indexes are the basis of evaluating the customers' credit, which decide whether right or not the evaluations to the electric customers' credit are. To select credit evaluation indexes scientifically, this paper introduces the data-reduction methods in rough set theory into selecting the electric customers' credit evaluation indexes, puts forward(More)
OBJECTIVE To analyze the prevalence and differences between gender and grades of suicide ideation among middle school students in China from 2000 to 2012 so as to provide basis for suicide prevention among middle school students. METHODS Electronic search strategy was carried out, using PubMed, Wanfang Database, VIP Database, China National Knowledge(More)
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