Our idea is the BQ generation for MQ and, at the same time, we only want the minimum number of BQ to represent the MQ, so modeling our problem as LASSO optimization problem is an appropriate way: (<cite>Antol et al. 2015</cite>) . "-" indicates the results are not available, "-std" means the accuracy of VQA model evaluated on the complete testing set of BQD and <cite>VQA dataset</cite> and "-dev" means the accuracy of VQA model evaluated on the partial testing set of BQD and <cite>VQA dataset</cite>.