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Yuxuan Lai

9 accepted papers

2024

Chain of Condition: Construct, Verify and Solve Conditions for Conditional Question Answering

EMNLP 2024finding

Conditional question answering (CQA) is an important task that aims to find probable answers and identify missing conditions. Existing approaches struggle with CQA due to two challenges: (1) precisely identifying necessary conditions and the logical relationship, and (2) verifying conditions to dete…

Cited by 0SourcePDFScholar
2024

Leveraging Large Language Models for NLG Evaluation: Advances and Challenges

EMNLP 2024main

In the rapidly evolving domain of Natural Language Generation (NLG) evaluation, introducing Large Language Models (LLMs) has opened new avenues for assessing generated content quality, e.g., coherence, creativity, and context relevance. This paper aims to provide a thorough overview of leveraging LL…

2023

How Many Answers Should I Give? An Empirical Study of Multi-Answer Reading Comprehension

ACL 2023findings

The multi-answer phenomenon, where a question may have multiple answers scattered in the document, can be well handled by humans but is challenging enough for machine reading comprehension (MRC) systems. Despite recent progress in multi-answer MRC, there lacks a systematic analysis of how this pheno…

2022

Dual-Channel Evidence Fusion for Fact Verification over Texts and Tables

NAACL 2022long

Different from previous fact extraction and verification tasks that only consider evidence of a single format, FEVEROUS brings further challenges by extending the evidence format to both plain text and tables. Existing works convert all candidate evidence into either sentences or tables, thus often…

2022

Event Transition Planning for Open-ended Text Generation

ACL 2022findings

Open-ended text generation tasks, such as dialogue generation and story completion, require models to generate a coherent continuation given limited preceding context. The open-ended nature of these tasks brings new challenges to the neural auto-regressive text generators nowadays. Despite these neu…

2021

Extract, Integrate, Compete: Towards Verification Style Reading Comprehension

EMNLP 2021finding

In this paper, we present a new verification style reading comprehension dataset named VGaokao from Chinese Language tests of Gaokao. Different from existing efforts, the new dataset is originally designed for native speakers’ evaluation, thus requiring more advanced language understanding skills. T…

2021

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

NAACL 2021long

Chinese pre-trained language models usually process text as a sequence of characters, while ignoring more coarse granularity, e.g., words. In this work, we propose a novel pre-training paradigm for Chinese — Lattice-BERT, which explicitly incorporates word representations along with characters, thus…

2021

Three Sentences Are All You Need: Local Path Enhanced Document Relation Extraction

ACL 2021short

Document-level Relation Extraction (RE) is a more challenging task than sentence RE as it often requires reasoning over multiple sentences. Yet, human annotators usually use a small number of sentences to identify the relationship between a given entity pair. In this paper, we present an embarrassin…