Search Results for author: Hao Zou

Found 12 papers, 3 papers with code

Geometry-Calibrated DRO: Combating Over-Pessimism with Free Energy Implications

no code implementations8 Nov 2023 Jiashuo Liu, Jiayun Wu, Tianyu Wang, Hao Zou, Bo Li, Peng Cui

Machine learning algorithms minimizing average risk are susceptible to distributional shifts.

CVSNet: A Computer Implementation for Central Visual System of The Brain

no code implementations31 May 2023 Ruimin Gao, Hao Zou, Zhekai Duan

In computer vision, different basic blocks are created around different matrix operations, and models based on different basic blocks have achieved good results.

Object Recognition

A Survey of Diffusion Models in Natural Language Processing

no code implementations24 May 2023 Hao Zou, Zae Myung Kim, Dongyeop Kang

In NLP, diffusion models have been used in a variety of applications, such as natural language generation, sentiment analysis, topic modeling, and machine translation.

Few-Shot Learning Machine Translation +2

Exploring and Exploiting Data Heterogeneity in Recommendation

no code implementations21 May 2023 Zimu Wang, Jiashuo Liu, Hao Zou, Xingxuan Zhang, Yue He, Dongxu Liang, Peng Cui

In this work, we focus on exploring two representative categories of heterogeneity in recommendation data that is the heterogeneity of prediction mechanism and covariate distribution and propose an algorithm that explores the heterogeneity through a bilevel clustering method.

Recommendation Systems

Gradient Norm Aware Minimization Seeks First-Order Flatness and Improves Generalization

1 code implementation CVPR 2023 Xingxuan Zhang, Renzhe Xu, Han Yu, Hao Zou, Peng Cui

Yet the current definition of flatness discussed in SAM and its follow-ups are limited to the zeroth-order flatness (i. e., the worst-case loss within a perturbation radius).

Improving Question Answering with Generation of NQ-like Questions

no code implementations12 Oct 2022 Saptarashmi Bandyopadhyay, Shraman Pal, Hao Zou, Abhranil Chandra, Jordan Boyd-Graber

We demonstrate that in a low resource setting, using the generated data improves the QA performance over the baseline system on both NQ and QB data.

Natural Questions Question Answering

CausPref: Causal Preference Learning for Out-of-Distribution Recommendation

1 code implementation8 Feb 2022 Yue He, Zimu Wang, Peng Cui, Hao Zou, Yafeng Zhang, Qiang Cui, Yong Jiang

In spite of the tremendous development of recommender system owing to the progressive capability of machine learning recently, the current recommender system is still vulnerable to the distribution shift of users and items in realistic scenarios, leading to the sharp decline of performance in testing environments.

Recommendation Systems

Semantic Segmentation-assisted Scene Completion for LiDAR Point Clouds

1 code implementation23 Sep 2021 Xuemeng Yang, Hao Zou, Xin Kong, Tianxin Huang, Yong liu, Wanlong Li, Feng Wen, Hongbo Zhang

Specifically, the network takes a raw point cloud as input, and merges the features from the segmentation branch into the completion branch hierarchically to provide semantic information.

3D Semantic Scene Completion 3D Semantic Segmentation +3

RFNet: Recurrent Forward Network for Dense Point Cloud Completion

no code implementations ICCV 2021 Tianxin Huang, Hao Zou, Jinhao Cui, Xuemeng Yang, Mengmeng Wang, Xiangrui Zhao, Jiangning Zhang, Yi Yuan, Yifan Xu, Yong liu

The RFE extracts multiple global features from the incomplete point clouds for different recurrent levels, and the FDC generates point clouds in a coarse-to-fine pipeline.

Point Cloud Completion

Counterfactual Prediction for Bundle Treatment

no code implementations NeurIPS 2020 Hao Zou, Peng Cui, Bo Li, Zheyan Shen, Jianxin Ma, Hongxia Yang, Yue He

Estimating counterfactual outcome of different treatments from observational data is an important problem to assist decision making in a variety of fields.

counterfactual Decision Making +2

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