Semantic Composition with PSHRG for Derivation Tree Reconstruction from Graph-Based Meaning Representations

1 code implementation • ACL 2022 • Chun Hei Lo, Wai Lam, Hong Cheng

We introduce a data-driven approach to generating derivation trees from meaning representation graphs with probabilistic synchronous hyperedge replacement grammar (PSHRG).

Semantic Composition

Distributional Inclusion Hypothesis and Quantifications: Probing for Hypernymy in Functional Distributional Semantics

no code implementations • 15 Sep 2023 • Chun Hei Lo, Wai Lam, Hong Cheng, Guy Emerson

Functional Distributional Semantics (FDS) models the meaning of words by truth-conditional functions.

Unstructured Knowledge Access in Task-oriented Dialog Modeling using Language Inference, Knowledge Retrieval and Knowledge-Integrative Response Generation

1 code implementation • 15 Jan 2021 • Mudit Chaudhary, Borislav Dzodzo, Sida Huang, Chun Hei Lo, Mingzhi Lyu, Lun Yiu Nie, Jinbo Xing, Tianhua Zhang, Xiaoying Zhang, Jingyan Zhou, Hong Cheng, Wai Lam, Helen Meng

Dialog systems enriched with external knowledge can handle user queries that are outside the scope of the supporting databases/APIs.

Natural Language Inference Response Generation +1

Reinforcement Learning in 20Q Game with Generic Knowledge Bases

no code implementations • CUHK Course IERG5350 2020 • Chun Hei Lo, Luyang Lin

20Q, invented by Robin Burgener in 1988, is a computerized game of twenty questions that began as a test in artificial intelligence.

reinforcement-learning Reinforcement Learning (RL)

CUHK at MRP 2019: Transition-Based Parser with Cross-Framework Variable-Arity Resolve Action

no code implementations • CONLL 2019 • Sunny Lai, Chun Hei Lo, Kwong Sak Leung, Yee Leung

This paper describes our system (RESOLVER) submitted to the CoNLL 2019 shared task on Cross-Framework Meaning Representation Parsing (MRP).