OPERA:Operation-Pivoted Discrete Reasoning over Text. (arXiv:2204.14166v1 [cs.CL])

Machine reading comprehension (MRC) that requires discrete reasoning
involving symbolic operations, e.g., addition, sorting, and counting, is a
challenging task. According to this nature, semantic parsing-based methods
predict interpretable but complex logical forms. However, logical form
generation is nontrivial and even a little perturbation in a logical form will
lead to wrong answers. To alleviate this issue, multi-predictor -based methods
are proposed to directly predict different types of answers and achieve
improvements. However, they ignore the utilization of symbolic operations …

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