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Zheng Ye

2 accepted papers

2023

Towards Imperceptible Document Manipulations against Neural Ranking Models

ACL 2023findings

Adversarial attacks have gained traction in order to identify vulnerabilities in neural ranking models (NRMs), but current attack methods often introduce noticeable errors. Moreover, current methods rely heavily on using a well-imitated surrogate NRM to guarantee the attack effect, making them diffi…

2021

Towards Quantifiable Dialogue Coherence Evaluation

ACL 2021long

Automatic dialogue coherence evaluation has attracted increasing attention and is crucial for developing promising dialogue systems. However, existing metrics have two major limitations: (a) they are mostly trained in a simplified two-level setting (coherent vs. incoherent), while humans give Likert…