Search Results for author: Zeyu Dai

Found 12 papers, 2 papers with code

Weakly Supervised Subevent Knowledge Acquisition

no code implementations EMNLP 2020 Wenlin Yao, Zeyu Dai, Maitreyi Ramaswamy, Bonan Min, Ruihong Huang

We first obtain the initial set of event pairs that are likely to have the subevent relation, by exploiting two observations that 1) subevents are temporally contained by the parent event, and 2) the definitions of the parent event can be used to further guide the identification of subevents.

Relation

Perturbation-Based Two-Stage Multi-Domain Active Learning

no code implementations19 Jun 2023 Rui He, Zeyu Dai, Shan He, Ke Tang

Active Learning (AL) presents an encouraging solution to this issue by annotating a smaller number of highly informative instances, thereby reducing the labeling effort.

Active Learning

Pareto Optimization for Active Learning under Out-of-Distribution Data Scenarios

no code implementations4 Jul 2022 Xueying Zhan, Zeyu Dai, Qingzhong Wang, Qing Li, Haoyi Xiong, Dejing Dou, Antoni B. Chan

In this paper, we propose a sampling scheme, Monte-Carlo Pareto Optimization for Active Learning (POAL), which selects optimal subsets of unlabeled samples with fixed batch size from the unlabeled data pool.

Active Learning

Saliency Attack: Towards Imperceptible Black-box Adversarial Attack

1 code implementation4 Jun 2022 Zeyu Dai, Shengcai Liu, Ke Tang, Qing Li

In this paper, we propose to restrict the perturbations to a small salient region to generate adversarial examples that can hardly be perceived.

Adversarial Attack

Imperceptible Black-box Attack via Refining in Salient Region

no code implementations29 Sep 2021 Zeyu Dai, Shengcai Liu, Ke Tang, Qing Li

To address this issue, in this paper we propose to use segmentation priors for black-box attacks such that the perturbations are limited in the salient region.

A Regularization Approach for Incorporating Event Knowledge and Coreference Relations into Neural Discourse Parsing

no code implementations IJCNLP 2019 Zeyu Dai, Ruihong Huang

We argue that external commonsense knowledge and linguistic constraints need to be incorporated into neural network models for mitigating data sparsity issues and further improving the performance of discourse parsing.

Discourse Parsing

Building Context-aware Clause Representations for Situation Entity Type Classification

1 code implementation EMNLP 2018 Zeyu Dai, Ruihong Huang

Capabilities to categorize a clause based on the type of situation entity (e. g., events, states and generic statements) the clause introduces to the discourse can benefit many NLP applications.

Classification General Classification +1

Improving Implicit Discourse Relation Classification by Modeling Inter-dependencies of Discourse Units in a Paragraph

no code implementations NAACL 2018 Zeyu Dai, Ruihong Huang

We argue that semantic meanings of a sentence or clause can not be interpreted independently from the rest of a paragraph, or independently from all discourse relations and the overall paragraph-level discourse structure.

General Classification Implicit Discourse Relation Classification +2

Using Context Events in Neural Network Models for Event Temporal Status Identification

no code implementations IJCNLP 2017 Zeyu Dai, Wenlin Yao, Ruihong Huang

Focusing on the task of identifying event temporal status, we find that events directly or indirectly governing the target event in a dependency tree are most important contexts.

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