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Shifu 0.2.7 Sampling Function Improvement

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Zhang Pengshan (David) edited this page Aug 31, 2015 · 1 revision

  1. Posson Distribution Sampling for Bagging With Replacement Training Set baggingWithReplacement=true (default in Shifu 0.2.7) in training configuration. https://github.com/ShifuML/shifu/issues/93

  2. Up Sampling Support In some cases if small ratio for positive records, up sampling for positive records are needed to train a more stable model. Look at https://github.com/ShifuML/shifu/issues/140 for details. Down sampling is already supported in norm#sampleNegtiveOnly and norm#sampleRatio.

Shifu: A Distributed Model Training Framework on Hadoop

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