Add scale factor for smoothL1 and smoothL1Bp #2267
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luotao1
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May 25, 2017
paddle/math/Matrix.cpp
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cost[i] = destScale * cost[i]
if (absVal < 1.0)
cost[i] += 0.5 * absVal * absVal;
else
cost[i] += absVal - 0.5;
下面grad部分可以同样修改。
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如果更简洁的话，可以写成：
cost[i] += (absVal < 1.0) ? 0.5 * absVal * absVal : absVal - 0.5;
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fix #2265