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Posted to dev@madlib.apache.org by GitBox <gi...@apache.org> on 2019/06/13 23:50:19 UTC

[GitHub] [madlib] jingyimei opened a new pull request #412: DL: Standardize the data types used for keras and sql

jingyimei opened a new pull request #412: DL: Standardize the data types used for keras and sql
URL: https://github.com/apache/madlib/pull/412
 
 
   JIRA: MADLIB-1358
   
   Under deep_learning module (this includes preprocessor, keras model arch
   table, fit, evaluate and predict), we made the following changes:
   
   1. independent_var and normalizing const to be float32 (REAL).
   2. dependent_var to be a 16-bit integer (SMALLINT)
   
   We were previously converting independent_var to float64 which is not
   necessary at all. Instead we might be able to save resources by just
   using float32 for the independent_var and int16 for the one hot encoded
   dependent_var.
   
   Co-authored-by: Nikhil Kak <nk...@pivotal.io>

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