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Renchunzi Xie

8 accepted papers

2024

MaNo: Exploiting Matrix Norm for Unsupervised Accuracy Estimation Under Distribution Shifts

NeurIPS 2024poster

Leveraging the model’s outputs, specifically the logits, is a common approach to estimating the test accuracy of a pre-trained neural network on out-of-distribution (OOD) samples without requiring access to the corresponding ground-truth labels. Despite their ease of implementation and computational…

2023

Mitigating Memorization of Noisy Labels by Clipping the Model Prediction

ICML 2023poster

In the presence of noisy labels, designing robust loss functions is critical for securing the generalization performance of deep neural networks. Cross Entropy (CE) loss has been shown to be not robust to noisy labels due to its unboundedness. To alleviate this issue, existing works typically design…

Cited by 32SourcePDFScholar
2023

On the Importance of Feature Separability in Predicting Out-Of-Distribution Error

NeurIPS 2023poster

Estimating the generalization performance is practically challenging on out-of-distribution (OOD) data without ground-truth labels. While previous methods emphasize the connection between distribution difference and OOD accuracy, we show that a large domain gap not necessarily leads to a low test ac…

Cited by 15SourcePDFScholar
2022

ACIL: Analytic Class-Incremental Learning with Absolute Memorization and Privacy Protection

NeurIPS 2022accept

Class-incremental learning (CIL) learns a classification model with training data of different classes arising progressively. Existing CIL either suffers from serious accuracy loss due to catastrophic forgetting, or invades data privacy by revisiting used exemplars. Inspired by learning of linear pr…

2022

GearNet: Stepwise Dual Learning for Weakly Supervised Domain Adaptation

AAAI 2022technical

This paper studies a weakly supervised domain adaptation (WSDA) problem, where we only have access to the source domain with noisy labels, from which we need to transfer useful information to the unlabeled target domain. Although there have been a few studies on this problem, most of them only explo…

2022

Mitigating Neural Network Overconfidence with Logit Normalization

ICML 2022spotlight

Detecting out-of-distribution inputs is critical for the safe deployment of machine learning models in the real world. However, neural networks are known to suffer from the overconfidence issue, where they produce abnormally high confidence for both in- and out-of-distribution inputs. In this work,…

2022

Open-Sampling: Exploring Out-of-Distribution data for Re-balancing Long-tailed datasets

ICML 2022spotlight

Deep neural networks usually perform poorly when the training dataset suffers from extreme class imbalance. Recent studies found that directly training with out-of-distribution data (i.e., open-set samples) in a semi-supervised manner would harm the generalization performance. In this work, we theor…

Cited by 45SourcePDFScholar
2021

Open-set Label Noise Can Improve Robustness Against Inherent Label Noise

NeurIPS 2021poster

Learning with noisy labels is a practically challenging problem in weakly supervised learning. In the existing literature, open-set noises are always considered to be poisonous for generalization, similar to closed-set noises. In this paper, we empirically show that open-set noisy labels can be non-…