Search Results for author: Xiong Zhou

Found 15 papers, 5 papers with code

Neural Field Classifiers via Target Encoding and Classification Loss

no code implementations2 Mar 2024 Xindi Yang, Zeke Xie, Xiong Zhou, Boyu Liu, Buhua Liu, Yi Liu, Haoran Wang, Yunfeng Cai, Mingming Sun

We successfully propose a novel Neural Field Classifier (NFC) framework which formulates existing neural field methods as classification tasks rather than regression tasks.

Classification Multi-Label Classification +2

ViGoR: Improving Visual Grounding of Large Vision Language Models with Fine-Grained Reward Modeling

no code implementations9 Feb 2024 Siming Yan, Min Bai, Weifeng Chen, Xiong Zhou, QiXing Huang, Li Erran Li

By combining natural language understanding and the generation capabilities and breadth of knowledge of large language models with image perception, recent large vision language models (LVLMs) have shown unprecedented reasoning capabilities in the real world.

Natural Language Understanding Visual Grounding

On the Dynamics Under the Unhinged Loss and Beyond

no code implementations13 Dec 2023 Xiong Zhou, Xianming Liu, Hanzhang Wang, Deming Zhai, Junjun Jiang, Xiangyang Ji

In this paper, we introduce the unhinged loss, a concise loss function, that offers more mathematical opportunities to analyze the closed-form dynamics while requiring as few simplifications or assumptions as possible.

Prototype-Anchored Learning for Learning with Imperfect Annotations

no code implementations23 Jun 2022 Xiong Zhou, Xianming Liu, Deming Zhai, Junjun Jiang, Xin Gao, Xiangyang Ji

We verify the effectiveness of PAL on class-imbalanced learning and noise-tolerant learning by extensive experiments on synthetic and real-world datasets.

Learning Towards the Largest Margins

no code implementations ICLR 2022 Xiong Zhou, Xianming Liu, Deming Zhai, Junjun Jiang, Xin Gao, Xiangyang Ji

One of the main challenges for feature representation in deep learning-based classification is the design of appropriate loss functions that exhibit strong discriminative power.

Face Verification imbalanced classification +1

Learning with Noisy Labels via Sparse Regularization

1 code implementation ICCV 2021 Xiong Zhou, Xianming Liu, Chenyang Wang, Deming Zhai, Junjun Jiang, Xiangyang Ji

In this paper, we theoretically prove that \textbf{any loss can be made robust to noisy labels} by restricting the network output to the set of permutations over a fixed vector.

Learning with noisy labels

Exploiting Invariance in Training Deep Neural Networks

1 code implementation30 Mar 2021 Chengxi Ye, Xiong Zhou, Tristan McKinney, Yanfeng Liu, Qinggang Zhou, Fedor Zhdanov

Inspired by two basic mechanisms in animal visual systems, we introduce a feature transform technique that imposes invariance properties in the training of deep neural networks.

Image Classification Object Detection +1

Advances in Deep Learning for Hyperspectral Image Analysis--Addressing Challenges Arising in Practical Imaging Scenarios

no code implementations16 Jul 2020 Xiong Zhou, Saurabh Prasad

Deep neural networks have proven to be very effective for computer vision tasks, such as image classification, object detection, and semantic segmentation -- these are primarily applied to color imagery and video.

Active Learning Hyperspectral image analysis +5

Out-of-the-box channel pruned networks

no code implementations30 Apr 2020 Ragav Venkatesan, Gurumurthy Swaminathan, Xiong Zhou, Anna Luo

We then demonstrate that if we found the profiles using a mid-sized dataset such as Cifar10/100, we are able to transfer them to even a large dataset such as Imagenet.

Reinforcement Learning (RL)

FineText: Text Classification via Attention-based Language Model Fine-tuning

no code implementations25 Oct 2019 Yunzhe Tao, Saurabh Gupta, Satyapriya Krishna, Xiong Zhou, Orchid Majumder, Vineet Khare

Training deep neural networks from scratch on natural language processing (NLP) tasks requires significant amount of manually labeled text corpus and substantial time to converge, which usually cannot be satisfied by the customers.

Benchmarking General Classification +4

$d$-SNE: Domain Adaptation using Stochastic Neighborhood Embedding

2 code implementations29 May 2019 Xiang Xu, Xiong Zhou, Ragav Venkatesan, Gurumurthy Swaminathan, Orchid Majumder

Deep neural networks often require copious amount of labeled-data to train their scads of parameters.

Domain Adaptation

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