orhankislal opened a new pull request #425: DL: Add training for multiple models URL: https://github.com/apache/madlib/pull/425 This commit adds a new function to train multiple models in parallel with model hopping method. Model hopping method involves the following steps: - Train models in parallel for a single epoch using the data local to each segment. - Move the models to the next segment in round-robin fashion. This method ensures that all of the models visit the entitre dataset, which eliminates the need to average the model at the end. This commit also fixes an issue with the regular fit function where excessive amounts of threads were being created and left over by keras sessions. It is fixed by reusing the same session and the same computational graph throughout the process. Co-authored-by: Orhan Kislal <[email protected]> Co-authored-by: Nandish Jayaram <[email protected]> Co-authored-by: Ekta Khanna <[email protected]> Co-authored-by: Nikhil Kak <[email protected]>
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