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Sicheng Ma

3 accepted papers

2023

Controllable Text Generation via Probability Density Estimation in the Latent Space

ACL 2023long

Previous work on controllable text generation has explored the idea of control from the latent space, such as optimizing a representation with attribute-specific classifiers or sampling one from relevant discrete samples. However, they cannot effectively model a complex space with diverse attributes…

2022

A Distributional Lens for Multi-Aspect Controllable Text Generation

EMNLP 2022main

Multi-aspect controllable text generation is a more challenging and practical task than single-aspect control. Existing methods achieve complex multi-aspect control by fusing multiple controllers learned from single-aspect, but suffer from attribute degeneration caused by the mutual interference of…

2022

Improving Controllable Text Generation with Position-Aware Weighted Decoding

ACL 2022findings

Weighted decoding methods composed of the pretrained language model (LM) and the controller have achieved promising results for controllable text generation. However, these models often suffer from a control strength/fluency trade-off problem as higher control strength is more likely to generate inc…