# DeepFM¶

Reference:

Huifeng Guo et al. “DeepFM: A Factorization-Machine based Neural Network for CTR Prediction.” in IJCAI 2017.

class recbole.model.context_aware_recommender.deepfm.DeepFM(config, dataset)[source]

DeepFM is a DNN enhanced FM which both use a DNN and a FM to calculate feature interaction. Also DeepFM can be seen as a combination of FNN and FM.

calculate_loss(interaction)[source]

Calculate the training loss for a batch data.

Parameters

interaction (Interaction) – Interaction class of the batch.

Returns

Training loss, shape: []

Return type

torch.Tensor

forward(interaction)[source]

Defines the computation performed at every call.

Should be overridden by all subclasses.

Note

Although the recipe for forward pass needs to be defined within this function, one should call the Module instance afterwards instead of this since the former takes care of running the registered hooks while the latter silently ignores them.

predict(interaction)[source]

Predict the scores between users and items.

Parameters

interaction (Interaction) – Interaction class of the batch.

Returns

Predicted scores for given users and items, shape: [batch_size]

Return type

torch.Tensor

training: bool