Search Results for author: Jiexi Liu

Found 3 papers, 2 papers with code

Robustness Testing of Language Understanding in Task-Oriented Dialog

2 code implementations ACL 2021 Jiexi Liu, Ryuichi Takanobu, Jiaxin Wen, Dazhen Wan, Hongguang Li, Weiran Nie, Cheng Li, Wei Peng, Minlie Huang

Most language understanding models in task-oriented dialog systems are trained on a small amount of annotated training data, and evaluated in a small set from the same distribution.

Data Augmentation Natural Language Understanding

A Hierarchical Framework for Relation Extraction with Reinforcement Learning

2 code implementations9 Nov 2018 Ryuichi Takanobu, Tianyang Zhang, Jiexi Liu, Minlie Huang

The whole extraction process is decomposed into a hierarchy of two-level RL policies for relation detection and entity extraction respectively, so that it is more feasible and natural to deal with overlapping relations.

Entity Extraction using GAN Hierarchical Reinforcement Learning +4

TimesURL: Self-supervised Contrastive Learning for Universal Time Series Representation Learning

no code implementations25 Dec 2023 Jiexi Liu, Songcan Chen

Learning universal time series representations applicable to various types of downstream tasks is challenging but valuable in real applications.

Anomaly Detection Contrastive Learning +4

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