DeepAI AI Chat
Log In Sign Up

Conditional Generation of Temporally-ordered Event Sequences

12/31/2020
by   Shih-Ting Lin, et al.
0

Models encapsulating narrative schema knowledge have proven to be useful for a range of event-related tasks, but these models typically do not engage with temporal relationships between events. We present a a BART-based conditional generation model capable of capturing event cooccurrence as well as temporality of event sequences. This single model can address both temporal ordering, sorting a given sequence of events into the order they occurred, and event infilling, predicting new events which fit into a temporally-ordered sequence of existing ones. Our model is trained as a denoising autoencoder: we take temporally-ordered event sequences, shuffle them, delete some events, and then attempting to recover the original event sequence. In this fashion, the model learns to make inferences given incomplete knowledge about the events in an underlying scenario. On the temporal ordering task, we show that our model is able to unscramble event sequences from existing datasets without access to explicitly labeled temporal training data, outperforming both a BERT-based pairwise model and a BERT-based pointer network. On event infilling, human evaluation shows that our model is able to generate events that fit better temporally into the input events when compared to GPT-2 story completion models.

READ FULL TEXT
04/16/2022

Probing Script Knowledge from Pre-Trained Models

Script knowledge is critical for humans to understand the broad daily ta...
10/06/2020

Modeling Preconditions in Text with a Crowd-sourced Dataset

Preconditions provide a form of logical connection between events that e...
05/04/2022

Go Back in Time: Generating Flashbacks in Stories with Event Temporal Prompts

Stories or narratives are comprised of a sequence of events. To compose ...
09/04/2015

Learning Temporal Alignment Uncertainty for Efficient Event Detection

In this paper we tackle the problem of efficient video event detection. ...
04/16/2021

proScript: Partially Ordered Scripts Generation via Pre-trained Language Models

Scripts - standardized event sequences describing typical everyday activ...
11/21/2017

Event Representations with Tensor-based Compositions

Robust and flexible event representations are important to many core are...
04/30/2021

Unbiased Deterministic Total Ordering of Parallel Simulations with Simultaneous Events

In the area of discrete event simulation (DES), event simultaneity occur...