Predicting Events in MOBA Games: Dataset, Attribution, and Evaluation
  The multiplayer online battle arena (MOBA) games have become increasingly
popular in recent years. Consequently, many efforts have been devoted to
providing pre-game or in-game predictions for them. However, these works are
limited in the following two aspects: 1) the lack of sufficient in-game
features; 2) the absence of interpretability in the prediction results. These
two limitations greatly restrict the practical performance and industrial
application of the current works. In this work, we collect and release a
large-scale dataset containing rich in-game features for the popular MOBA game
Honor of Kings. We then propose to predict four types of important events in an
interpretable way by attributing the predictions to the input features using
two gradient-based attribution methods: Integrated Gradients and SmoothGrad. To
evaluate the explanatory power of different models and attribution methods, a
fidelity-based evaluation metric is further proposed. Finally, we evaluate the
accuracy and Fidelity of several competitive methods on the collected dataset
to assess how well machines predict events in MOBA games.
