Search Results for author: Haoping Bai

Found 13 papers, 8 papers with code

TIS-DPO: Token-level Importance Sampling for Direct Preference Optimization With Estimated Weights

2 code implementations6 Oct 2024 Aiwei Liu, Haoping Bai, Zhiyun Lu, Yanchao Sun, Xiang Kong, Simon Wang, Jiulong Shan, Albin Madappally Jose, Xiaojiang Liu, Lijie Wen, Philip S. Yu, Meng Cao

In this work, we propose that the optimal data for DPO has equal expected rewards for each token in winning and losing responses, as there is no difference in token importance.

Direct Large Language Model Alignment Through Self-Rewarding Contrastive Prompt Distillation

1 code implementation19 Feb 2024 Aiwei Liu, Haoping Bai, Zhiyun Lu, Xiang Kong, Simon Wang, Jiulong Shan, Meng Cao, Lijie Wen

In this paper, we propose a method to evaluate the response preference by using the output probabilities of response pairs under contrastive prompt pairs, which could achieve better performance on LLaMA2-7B and LLaMA2-13B compared to RLAIF.

Language Modeling Language Modelling +1

RGI: robust GAN-inversion for mask-free image inpainting and unsupervised pixel-wise anomaly detection

no code implementations24 Feb 2023 Shancong Mou, Xiaoyi Gu, Meng Cao, Haoping Bai, Ping Huang, Jiulong Shan, Jianjun Shi

In this paper, we propose a Robust GAN-inversion (RGI) method with a provable robustness guarantee to achieve image restoration under unknown \textit{gross} corruptions, where a small fraction of pixels are completely corrupted.

Anomaly Detection Image Inpainting +1

PAEDID: Patch Autoencoder Based Deep Image Decomposition For Pixel-level Defective Region Segmentation

no code implementations28 Mar 2022 Shancong Mou, Meng Cao, Haoping Bai, Ping Huang, Jianjun Shi, Jiulong Shan

To combine the best of both worlds, we present an unsupervised patch autoencoder based deep image decomposition (PAEDID) method for defective region segmentation.

Anomaly Detection

Self-supervised Semi-supervised Learning for Data Labeling and Quality Evaluation

no code implementations22 Nov 2021 Haoping Bai, Meng Cao, Ping Huang, Jiulong Shan

On active learning task, our method achieves 97. 0% Top-1 Accuracy on CIFAR10 with 0. 1% annotated data, and 83. 9% Top-1 Accuracy on CIFAR100 with 10% annotated data.

Active Learning Representation Learning

BatchQuant: Quantized-for-all Architecture Search with Robust Quantizer

no code implementations NeurIPS 2021 Haoping Bai, Meng Cao, Ping Huang, Jiulong Shan

While single-shot quantized neural architecture search enjoys flexibility in both model architecture and quantization policy, the combined search space comes with many challenges, including instability when training the weight-sharing supernet and difficulty in navigating the exponentially growing search space.

All Hardware Aware Neural Architecture Search +3

SUOD: Accelerating Large-Scale Unsupervised Heterogeneous Outlier Detection

1 code implementation11 Mar 2020 Yue Zhao, Xiyang Hu, Cheng Cheng, Cong Wang, Changlin Wan, Wen Wang, Jianing Yang, Haoping Bai, Zheng Li, Cao Xiao, Yunlong Wang, Zhi Qiao, Jimeng Sun, Leman Akoglu

Outlier detection (OD) is a key machine learning (ML) task for identifying abnormal objects from general samples with numerous high-stake applications including fraud detection and intrusion detection.

Dimensionality Reduction Fraud Detection +2

SUOD: Toward Scalable Unsupervised Outlier Detection

2 code implementations8 Feb 2020 Yue Zhao, Xueying Ding, Jianing Yang, Haoping Bai

In this study, we propose a three-module acceleration framework called SUOD to expedite the training and prediction with a large number of unsupervised detection models.

Knowledge Distillation Outlier Detection +1

Cannot find the paper you are looking for? You can Submit a new open access paper.