# Multi-Perspective Fusion Network for Commonsense Reading Comprehension

## TL;DR

This paper introduces a Multi-Perspective Fusion Network (MPFN) for commonsense reading comprehension, which enhances information capture by integrating difference, similarity, and union perspectives, leading to state-of-the-art accuracy.

## Contribution

The paper proposes a novel multi-perspective fusion approach that extends traditional methods with difference and similarity fusions, improving comprehension accuracy.

## Key findings

- Difference fusion is comparable to union fusion.
- Similarity fusion requires union fusion to be effective.
- MPFN achieves 83.52% accuracy on MCScript dataset.

## Abstract

Commonsense Reading Comprehension (CRC) is a significantly challenging task, aiming at choosing the right answer for the question referring to a narrative passage, which may require commonsense knowledge inference. Most of the existing approaches only fuse the interaction information of choice, passage, and question in a simple combination manner from a \emph{union} perspective, which lacks the comparison information on a deeper level. Instead, we propose a Multi-Perspective Fusion Network (MPFN), extending the single fusion method with multiple perspectives by introducing the \emph{difference} and \emph{similarity} fusion\deleted{along with the \emph{union}}. More comprehensive and accurate information can be captured through the three types of fusion. We design several groups of experiments on MCScript dataset \cite{Ostermann:LREC18:MCScript} to evaluate the effectiveness of the three types of fusion respectively. From the experimental results, we can conclude that the difference fusion is comparable with union fusion, and the similarity fusion needs to be activated by the union fusion. The experimental result also shows that our MPFN model achieves the state-of-the-art with an accuracy of 83.52\% on the official test set.