Search Results for author: Yuxuan Lai

Found 10 papers, 7 papers with code

Extract, Integrate, Compete: Towards Verification Style Reading Comprehension

1 code implementation11 Sep 2021 Chen Zhang, Yuxuan Lai, Yansong Feng, Dongyan Zhao

In this paper, we present a new verification style reading comprehension dataset named VGaokao from Chinese Language tests of Gaokao.

Reading Comprehension

Why Machine Reading Comprehension Models Learn Shortcuts?

1 code implementation2 Jun 2021 Yuxuan Lai, Chen Zhang, Yansong Feng, Quzhe Huang, Dongyan Zhao

A thorough empirical analysis shows that MRC models tend to learn shortcut questions earlier than challenging questions, and the high proportions of shortcut questions in training sets hinder models from exploring the sophisticated reasoning skills in the later stage of training.

Machine Reading Comprehension

Lattice-BERT: Leveraging Multi-Granularity Representations in Chinese Pre-trained Language Models

2 code implementations NAACL 2021 Yuxuan Lai, Yijia Liu, Yansong Feng, Songfang Huang, Dongyan Zhao

Further analysis shows that Lattice-BERT can harness the lattice structures, and the improvement comes from the exploration of redundant information and multi-granularity representations.

Natural Language Understanding

Domain Adaptation for Semantic Parsing

no code implementations23 Jun 2020 Zechang Li, Yuxuan Lai, Yansong Feng, Dongyan Zhao

In this paper, we propose a novel semantic parser for domain adaptation, where we have much fewer annotated data in the target domain compared to the source domain.

Domain Adaptation Semantic Parsing

Integrating Relation Constraints with Neural Relation Extractors

1 code implementation26 Nov 2019 Yuan Ye, Yansong Feng, Bingfeng Luo, Yuxuan Lai, Dongyan Zhao

However, such models often make predictions for each entity pair individually, thus often fail to solve the inconsistency among different predictions, which can be characterized by discrete relation constraints.

Relation Extraction

A Sketch-Based System for Semantic Parsing

1 code implementation2 Sep 2019 Zechang Li, Yuxuan Lai, Yuxi Xie, Yansong Feng, Dongyan Zhao

The sketch is a high-level structure of the logical form exclusive of low-level details such as entities and predicates.

Semantic Parsing

Enhancing Key-Value Memory Neural Networks for Knowledge Based Question Answering

no code implementations NAACL 2019 Kun Xu, Yuxuan Lai, Yansong Feng, Zhiguo Wang

However, extending KV-MemNNs to Knowledge Based Question Answering (KB-QA) is not trivia, which should properly decompose a complex question into a sequence of queries against the memory, and update the query representations to support multi-hop reasoning over the memory.

Question Answering Reading Comprehension +1

Lattice CNNs for Matching Based Chinese Question Answering

1 code implementation25 Feb 2019 Yuxuan Lai, Yansong Feng, Xiaohan Yu, Zheng Wang, Kun Xu, Dongyan Zhao

Short text matching often faces the challenges that there are great word mismatch and expression diversity between the two texts, which would be further aggravated in languages like Chinese where there is no natural space to segment words explicitly.

Question Answering Text Matching

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