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From myui <...@git.apache.org>
Subject [GitHub] incubator-hivemall issue #149: [HIVEMALL-201] Evaluate, fix and document FFM
Date Thu, 21 Jun 2018 07:19:02 GMT
Github user myui commented on the issue:

    https://github.com/apache/incubator-hivemall/pull/149
  
    > -lambda 0.0001 (default), -init_v adjusted_random
    0.6756640217829124      0.8644404496920104
    
    > -lambda 0.001, -init_v adjusted_random
    0.6749224090640931      0.8642914100412997
    
    > -lambda 0.002, -init_v adjusted_random
    0.6729486759257253      0.862249033512779
    
    > -lambda 0.01, -init_v adjusted_random
    0.6728088660666263      0.8568219312625348
    
    • libfm
    ```
    eta=0.1
    init_stdev=0.1
    reg0 = 0.0;
    regw = 0.0;
    regv = 0.0;
    ```
    
    https://github.com/srendle/libfm/blob/4ba0e0d5646da5d00701d853d19fbbe9b236cfd7/src/libfm/libfm.cpp#L87
    https://github.com/srendle/libfm/blob/30b9c799c41d043f31565cbf827bf41d0dc3e2ab/src/fm_core/fm_model.h#L73
    
    • libffm
    ```
    eta = 0.1; // learning rate
    lambda = 0.00002; // regularization parameter
    nr_iters = 15;
    k = 4; // number of latent factors
    ```
    
    https://github.com/srendle/libfm/blob/4ba0e0d5646da5d00701d853d19fbbe9b236cfd7/src/libfm/libfm.cpp#L84


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