Search Results for author: Haotian Chen

Found 11 papers, 4 papers with code

RD2Bench: Toward Data-Centric Automatic R&D

no code implementations17 Apr 2024 Haotian Chen, Xinjie Shen, Zeqi Ye, Xiao Yang, Xu Yang, Weiqing Liu, Jiang Bian

The progress of humanity is driven by those successful discoveries accompanied by countless failed experiments.

Language Modelling Large Language Model +1

Variational Stochastic Gradient Descent for Deep Neural Networks

1 code implementation9 Apr 2024 Haotian Chen, Anna Kuzina, Babak Esmaeili, Jakub M Tomczak

We model gradient updates as a probabilistic model and utilize stochastic variational inference (SVI) to derive an efficient and effective update rule.

Image Classification Variational Inference

A Critical Look at Classic Test-Time Adaptation Methods in Semantic Segmentation

no code implementations9 Oct 2023 Chang'an Yi, Haotian Chen, Yifan Zhang, Yonghui Xu, Lizhen Cui

This pronounced emphasis on classification might lead numerous newcomers and engineers to mistakenly assume that classic TTA methods designed for classification can be directly applied to segmentation.

Classification Segmentation +2

Did the Models Understand Documents? Benchmarking Models for Language Understanding in Document-Level Relation Extraction

1 code implementation20 Jun 2023 Haotian Chen, Bingsheng Chen, Xiangdong Zhou

Then, we conduct investigations and reveal the fact that: In contrast to humans, the representative state-of-the-art (SOTA) models in DocRE exhibit different decision rules.

Benchmarking Document-level Relation Extraction +1

Model-Contrastive Federated Domain Adaptation

no code implementations7 May 2023 Chang'an Yi, Haotian Chen, Yonghui Xu, Yifan Zhang

Federated domain adaptation (FDA) aims to collaboratively transfer knowledge from source clients (domains) to the related but different target client, without communicating the local data of any client.

Contrastive Learning Domain Adaptation +1

GAT-COBO: Cost-Sensitive Graph Neural Network for Telecom Fraud Detection

1 code implementation29 Mar 2023 Xinxin Hu, Haotian Chen, Junjie Zhang, Hongchang Chen, Shuxin Liu, Xing Li, Yahui Wang, xiangyang xue

Extensive experiments on two real-world telecom fraud detection datasets demonstrate that our proposed method is effective for the graph imbalance problem, outperforming the state-of-the-art GNNs and GNN-based fraud detectors.

Anomaly Detection Fraud Detection +2

Cost Sensitive GNN-based Imbalanced Learning for Mobile Social Network Fraud Detection

1 code implementation28 Mar 2023 Xinxin Hu, Haotian Chen, Hongchang Chen, Shuxin Liu, Xing Li, Shibo Zhang, Yahui Wang, xiangyang xue

But the imbalance problem in the aforementioned data, which could severely hinder the effectiveness of fraud detectors based on graph neural networks(GNN), has hardly been addressed in previous work.

Fraud Detection

Does Debiasing Inevitably Degrade the Model Performance

no code implementations14 Nov 2022 Yiran Liu, Xiao Liu, Haotian Chen, Yang Yu

We use our theoretical framework to explain why the current debiasing methods cause performance degradation.

Knowledge is Power: Understanding Causality Makes Legal judgment Prediction Models More Generalizable and Robust

no code implementations6 Nov 2022 Haotian Chen, Lingwei Zhang, Yiran Liu, Fanchao Chen, Yang Yu

To validate our theoretical analysis, we further propose another method using our proposed Causality-Aware Self-Attention Mechanism (CASAM) to guide the model to learn the underlying causality knowledge in legal texts.

Open Information Extraction

ATPL: Mutually enhanced adversarial training and pseudo labeling for unsupervised domain adaptation

no code implementations Knowledge-Based Systems 2022 Changan Yi, Haotian Chen, Yonghui Xu, Yong liu, Lei Jiang, Haishu Tan

Accordingly, ATPL will use the pseudo-labeled information to improve the adversarial training process, which can guarantee the feature transferability by generating adversarial data to fill in the domain gap.

Unsupervised Domain Adaptation

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