Search Results for author: Xingxuan Zhang

Found 24 papers, 9 papers with code

PPA-Game: Characterizing and Learning Competitive Dynamics Among Online Content Creators

no code implementations22 Mar 2024 Renzhe Xu, Haotian Wang, Xingxuan Zhang, Bo Li, Peng Cui

We introduce the Proportional Payoff Allocation Game (PPA-Game) to model how agents, akin to content creators on platforms like YouTube and TikTok, compete for divisible resources and consumers' attention.

Zero-shot Generalizable Incremental Learning for Vision-Language Object Detection

no code implementations4 Mar 2024 Jieren Deng, Haojian Zhang, Kun Ding, Jianhua Hu, Xingxuan Zhang, Yunkuan Wang

This paper presents Incremental Vision-Language Object Detection (IVLOD), a novel learning task designed to incrementally adapt pre-trained Vision-Language Object Detection Models (VLODMs) to various specialized domains, while simultaneously preserving their zero-shot generalization capabilities for the generalized domain.

Incremental Learning object-detection +2

On the Out-Of-Distribution Generalization of Multimodal Large Language Models

no code implementations9 Feb 2024 Xingxuan Zhang, Jiansheng Li, Wenjing Chu, Junjia Hai, Renzhe Xu, Yuqing Yang, Shikai Guan, Jiazheng Xu, Peng Cui

We investigate the generalization boundaries of current Multimodal Large Language Models (MLLMs) via comprehensive evaluation under out-of-distribution scenarios and domain-specific tasks.

In-Context Learning Out-of-Distribution Generalization +1

TouchStone: Evaluating Vision-Language Models by Language Models

1 code implementation31 Aug 2023 Shuai Bai, Shusheng Yang, Jinze Bai, Peng Wang, Xingxuan Zhang, Junyang Lin, Xinggang Wang, Chang Zhou, Jingren Zhou

Large vision-language models (LVLMs) have recently witnessed rapid advancements, exhibiting a remarkable capacity for perceiving, understanding, and processing visual information by connecting visual receptor with large language models (LLMs).

Visual Storytelling

Flatness-Aware Minimization for Domain Generalization

no code implementations ICCV 2023 Xingxuan Zhang, Renzhe Xu, Han Yu, Yancheng Dong, Pengfei Tian, Peng Cu

However, we reveal that Adam is not necessarily the optimal choice for the majority of current DG methods and datasets.

Domain Generalization FAD

Competing for Shareable Arms in Multi-Player Multi-Armed Bandits

1 code implementation30 May 2023 Renzhe Xu, Haotian Wang, Xingxuan Zhang, Bo Li, Peng Cui

In reality, agents often have to learn and maximize the rewards of the resources at the same time.

Multi-Armed Bandits

Meta Adaptive Task Sampling for Few-Domain Generalization

no code implementations25 May 2023 Zheyan Shen, Han Yu, Peng Cui, Jiashuo Liu, Xingxuan Zhang, Linjun Zhou, Furui Liu

Moreover, we propose a Meta Adaptive Task Sampling (MATS) procedure to differentiate base tasks according to their semantic and domain-shift similarity to the novel task.

Domain Generalization

Rethinking the Evaluation Protocol of Domain Generalization

no code implementations24 May 2023 Han Yu, Xingxuan Zhang, Renzhe Xu, Jiashuo Liu, Yue He, Peng Cui

This paper examines the risks of test data information leakage from two aspects of the current evaluation protocol: supervised pretraining on ImageNet and oracle model selection.

Domain Generalization Model Selection

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).

Stable Learning via Sparse Variable Independence

no code implementations2 Dec 2022 Han Yu, Peng Cui, Yue He, Zheyan Shen, Yong Lin, Renzhe Xu, Xingxuan Zhang

The problem of covariate-shift generalization has attracted intensive research attention.

Variable Selection

Product Ranking for Revenue Maximization with Multiple Purchases

1 code implementation15 Oct 2022 Renzhe Xu, Xingxuan Zhang, Bo Li, Yafeng Zhang, Xiaolong Chen, Peng Cui

In this paper, we assume that each consumer can purchase multiple products at will.

NICO++: Towards Better Benchmarking for Domain Generalization

2 code implementations CVPR 2023 Xingxuan Zhang, Yue He, Renzhe Xu, Han Yu, Zheyan Shen, Peng Cui

Most current evaluation methods for domain generalization (DG) adopt the leave-one-out strategy as a compromise on the limited number of domains.

Benchmarking Domain Generalization +2

Towards Domain Generalization in Object Detection

no code implementations27 Mar 2022 Xingxuan Zhang, Zekai Xu, Renzhe Xu, Jiashuo Liu, Peng Cui, Weitao Wan, Chong Sun, Chen Li

Despite the striking performance achieved by modern detectors when training and test data are sampled from the same or similar distribution, the generalization ability of detectors under unknown distribution shifts remains hardly studied.

Domain Generalization Object +2

Regulatory Instruments for Fair Personalized Pricing

1 code implementation9 Feb 2022 Renzhe Xu, Xingxuan Zhang, Peng Cui, Bo Li, Zheyan Shen, Jiazheng Xu

Personalized pricing is a business strategy to charge different prices to individual consumers based on their characteristics and behaviors.

A Theoretical Analysis on Independence-driven Importance Weighting for Covariate-shift Generalization

1 code implementation3 Nov 2021 Renzhe Xu, Xingxuan Zhang, Zheyan Shen, Tong Zhang, Peng Cui

Afterward, we prove that under ideal conditions, independence-driven importance weighting algorithms could identify the variables in this set.

feature selection

Towards Out-Of-Distribution Generalization: A Survey

no code implementations31 Aug 2021 Jiashuo Liu, Zheyan Shen, Yue He, Xingxuan Zhang, Renzhe Xu, Han Yu, Peng Cui

This paper represents the first comprehensive, systematic review of OOD generalization, encompassing a spectrum of aspects from problem definition, methodological development, and evaluation procedures, to the implications and future directions of the field.

Out-of-Distribution Generalization Representation Learning

Towards Unsupervised Domain Generalization

no code implementations CVPR 2022 Xingxuan Zhang, Linjun Zhou, Renzhe Xu, Peng Cui, Zheyan Shen, Haoxin Liu

Domain generalization (DG) aims to help models trained on a set of source domains generalize better on unseen target domains.

Domain Generalization Representation Learning

Deep Stable Learning for Out-Of-Distribution Generalization

2 code implementations CVPR 2021 Xingxuan Zhang, Peng Cui, Renzhe Xu, Linjun Zhou, Yue He, Zheyan Shen

Approaches based on deep neural networks have achieved striking performance when testing data and training data share similar distribution, but can significantly fail otherwise.

Domain Generalization Out-of-Distribution Generalization

Sample Balancing for Improving Generalization under Distribution Shifts

no code implementations1 Jan 2021 Xingxuan Zhang, Peng Cui, Renzhe Xu, Yue He, Linjun Zhou, Zheyan Shen

We propose to address this problem by removing the dependencies between features via reweighting training samples, which results in a more balanced distribution and helps deep models get rid of spurious correlations and, in turn, concentrate more on the true connection between features and labels.

Domain Adaptation Object Recognition

Spatio-Temporal Fusion Based Convolutional Sequence Learning for Lip Reading

no code implementations ICCV 2019 Xingxuan Zhang, Feng Cheng, Shilin Wang

Current state-of-the-art approaches for lip reading are based on sequence-to-sequence architectures that are designed for natural machine translation and audio speech recognition.

Ranked #13 on Lipreading on LRS2 (using extra training data)

Lipreading Lip Reading +4

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