TensorFlow implementation of GRu4Rec, which was descibed in "Session-based Recommendations With Recurrent Neural Networks". See paper: http://arxiv.org/abs/1511.06939.
Python: 2.7
Pandas < 0.17
Numpy 1.12.1 or later
TensorFlow: 0.12.1
Train/Test file should consists of three columns:
First column: SessionId
Second column: ItemId
Third column: Timestamps
To train a model with default parameter settings:
$ python main.py
Other optional parameters include:
--layer: Number of GRU layers. Default is 1.
--size: Number of hidden units in GRU model. Default is 100.
--epoch: Runing epochs. Default is 3.
--lr : Initial learning rate. Default is 0.001.
--train: Specify whether training(1) or evaluating(0). Default is 1.
--hidden_act: Activation function used in GRU units. Default is tanh.
--final_act: Final activation function. Default is softmax.
--loss: Loss functions, cross-entropy, bpr or top1 loss. Default is cross-entropy.
--dropout: Dropout rate. Default is 0.5.
To evaluate a trained model:
$ python main.py --train 0
One optional parameter is:
--test: Specify which saved model to evaluate(only used when --train is 0). Default is 2.
This repository refers a lot to the original Theano implementation.
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