3) combines the control unit from the stateof-the-art multi-hop VQA model and the widelyadopted bi-attention mechanism from text-based QA to perform composite reasoning on the context and question.
bridge Entity Supervision even with the multi-hop architecture to capture a hopspecific distribution over the question, there is no supervision on the control unit's output distribution cv about which part of the question is important to the current reasoning step, thus preventing the control unit from learning the composite reasoning skill.