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DeepRank: Learning to Rank with Neural Networks for Recommendation

• Run listwise DeepRank:

$ python DeepRank.py --path datasets --data_name ml-100k/u.data --epoches 40 --batch_size 512 --user_factors 16 --item_factors 16 --layers [16,8] --reg 0.00001 --list_length 5 --num_positive 2 --sample_time 2 --top_n 10 --lr 0.01 --path_model model

• Run pairwise DeepRank:

$ python DeepRank.py --path datasets --data_name ml-100k/u.data --epoches 40 --batch_size 512 --user_factors 16 --item_factors 16 --layers [16,8] --reg 0.00001 --list_length 2 --num_positive 1 --sample_time 4 --top_n 10 --lr 0.01 --path_model model

• path：Input data path.
• data_name：Name of dataset
• epoches：Number of epoches.
• batch_size：Batch size.
• user_factors：Embedding size of users.
• item_factors: Embedding size of items.
• layers：Size of each layer. Note that the first hidden layer is the interaction layer.
• reg: Regularization for user and item embeddings.
• list_length: Length of list for training. In pairwise DeepRank list_length=2; in listwise DeepRank list_length>2.
• num_positive: Number of positive instances in training list. In pairwise DeepRank num_positive=1;
• sample_time: Time of sample from instances.
• top_n: Number of top_n list for recommendation.
• lr: Learning rate.
• path_model: Output path for saving pre_trained model.