SubeventWriter: Iterative Sub-event Sequence Generation with Coherence Controller

TL;DR

This paper introduces SubeventWriter, a framework for generating coherent sub-event sequences for unseen processes, utilizing an iterative approach and a coherence controller to improve reliability and meaningfulness.

Contribution

It presents a novel task of sub-event generation for unseen processes and a new framework with a coherence controller to enhance sequence coherence.

Findings

Generates more reliable sub-event sequences.

Outperforms baselines in coherence and relevance.

Effective for unseen processes.

Abstract

In this paper, we propose a new task of sub-event generation for an unseen process to evaluate the understanding of the coherence of sub-event actions and objects. To solve the problem, we design SubeventWriter, a sub-event sequence generation framework with a coherence controller. Given an unseen process, the framework can iteratively construct the sub-event sequence by generating one sub-event at each iteration. We also design a very effective coherence controller to decode more coherent sub-events. As our extensive experiments and analysis indicate, SubeventWriter can generate more reliable and meaningful sub-event sequences for unseen processes.