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A Split-and-Recombine Approach for Follow-Up Query Analysis (arxiv.org)
3 points by sel1 on Sep 22, 2019 | hide | past | pdf | discuss on HN

In plain words: When a question depends on earlier turns, the system splits it apart, fills in the missing details from context, and recombines it into a full standalone question any standard parser can handle. It beat the best prior system by nearly 8%.

Abstract · A Split-and-Recombine Approach for Follow-up Query Analysis

Context-dependent semantic parsing has proven to be an important yet challenging task. To leverage the advances in context-independent semantic parsing, we propose to perform follow-up query analysis, aiming to restate context-dependent natural language queries with contextual information. To accomplish the task, we propose STAR, a novel approach with a well-designed two-phase process. It is parser-independent and able to handle multifarious follow-up scenarios in different domains. Experiments on the FollowUp dataset show that STAR outperforms the state-of-the-art baseline by a large margin of nearly 8%. The superiority on parsing results verifies the feasibility of follow-up query analysis. We also explore the extensibility of STAR on the SQA dataset, which is very promising.

Qian Liu, Bei Chen, Haoyan Liu, Lei Fang, Jian-Guang Lou, Bin Zhou, Dongmei Zhang
arXiv:1909.08905 · cs.CL, cs.AI · submitted Sep 19, 2019
abstract · pdf · html · Accepted by EMNLP 2019

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