Multi-Cast Attention Networks for Retrieval-based Question Answering and Response Prediction
Table 2. Performance Comparison on TrecQA (clean) dataset. Best result is in boldface and second best is underlined.
['Model', 'MAP', 'MRR']
All MCAN variations outperform all existing state-of-the-art models. Notably, MCAN (FM) is currently the best performing model on this extensively studied dataset. MCAN (NN) comes in second which marginally outperforms the highly competitive and recent IWAN model. Finally, MCAN (SM) remains competitive to IWAN, despite naively summing over casted attention features.