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Afinity Propagation AP 的关键在于用 匹配度 (Responsibility) 和 (Availability) 来衡量中心点(Examplar). 先上原文: The “responsibility” r(i,k), sent from data point i to can 阅读全文
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Predictor Variable 自变量 Experimental Variable 因变量,实验变量 Control Variable 1. list all potential var2. if have no data, remove var3. combine similar var4. 阅读全文
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Gradient Descent 1. USAGE When we want to know min[f(X)]. 2. ESSENCE Following the path of gradient, we go down (f(x) decrease) fastest. We define the 阅读全文
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Comparison with SQL¶ Since many potential pandas users have some familiarity with SQL, this page is meant to provide some examples of how various SQL 阅读全文
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search tables show tables "*sc*bak*" partial select set hive.support.quoted.identifiers=none; SELECT `(mo|code)?+.+`, NULL as zbk_tmc, NULL AS zbkrvFR 阅读全文