SubeventWriter: Iterative Sub-event Sequence Generation with Coherence Controller
This work addresses the challenge of evaluating coherence in sub-event understanding for processes, though it appears incremental as it builds on existing sequence generation methods.
The paper tackles the problem of generating coherent sub-event sequences for unseen processes by proposing SubeventWriter, a framework with an iterative generation approach and a coherence controller, which results in more reliable and meaningful sequences as demonstrated in experiments.
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.