Hong Cheng

An Intelligent Customer Care Assistant System for Large-Scale Cellular Network Diagnosis

2017

With the advent of cellular network technologies, mobile Internet access becomes the norm in everyday life. In the meantime, the complaints made by subscribers about unsatisfactory cellular network access also become increasingly frequent. From a …

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

2022 · Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)

We introduce a data-driven approach to generating derivation trees from meaning representation graphs with probabilistic synchronous hyperedge replacement grammar (PSHRG). SHRG has been used to produce meaning representation graphs from texts and syntax trees, but …

Question answering over knowledge graphs

2018 · Proceedings of the VLDB Endowment

The gap between unstructured natural language and structured data makes it challenging to build a system that supports using natural language to query large knowledge graphs. Many existing methods construct a structured query for the …