Search Results for author: Xiaosu Zhu

Found 9 papers, 8 papers with code

CUCL: Codebook for Unsupervised Continual Learning

1 code implementation25 Nov 2023 Chen Cheng, Jingkuan Song, Xiaosu Zhu, Junchen Zhu, Lianli Gao, HengTao Shen

To address this issue, after analyzing the phenomenon and identifying the lack of diversity as a vital factor, we propose a method named Codebook for Unsupervised Continual Learning (CUCL) which promotes the model to learn discriminative features to complete the class boundary.

Continual Learning Quantization

Prototype-based Aleatoric Uncertainty Quantification for Cross-modal Retrieval

1 code implementation NeurIPS 2023 Hao Li, Jingkuan Song, Lianli Gao, Xiaosu Zhu, Heng Tao Shen

In this paper, we propose a novel Prototype-based Aleatoric Uncertainty Quantification (PAU) framework to provide trustworthy predictions by quantifying the uncertainty arisen from the inherent data ambiguity.

Image-text matching Image-to-Text Retrieval +6

A Lower Bound of Hash Codes' Performance

1 code implementation12 Oct 2022 Xiaosu Zhu, Jingkuan Song, Yu Lei, Lianli Gao, Heng Tao Shen

By testing on a series of hash-models, we obtain performance improvements among all of them, with an up to $26. 5\%$ increase in mean Average Precision and an up to $20. 5\%$ increase in accuracy.

Metric Learning Representation Learning

Fast Gradient Non-sign Methods

1 code implementation25 Oct 2021 Yaya Cheng, Jingkuan Song, Xiaosu Zhu, Qilong Zhang, Lianli Gao, Heng Tao Shen

Based on the linearity hypothesis, under $\ell_\infty$ constraint, $sign$ operation applied to the gradients is a good choice for generating perturbations.

Revisiting Multi-Codebook Quantization

no code implementations NeurIPS 2021 Xiaosu Zhu, Jingkuan Song, Lianli Gao, Xiaoyan Gu, HengTao Shen

However, finding the optimal solution to MCQ is proved to be NP-hard due to its encoding process, \textit{i. e.}, converting an input vector to a binary code.

Quantization Retrieval

Staircase Sign Method for Boosting Adversarial Attacks

2 code implementations20 Apr 2021 Qilong Zhang, Xiaosu Zhu, Jingkuan Song, Lianli Gao, Heng Tao Shen

Crafting adversarial examples for the transfer-based attack is challenging and remains a research hot spot.

Adversarial Attack

Beyond Product Quantization: Deep Progressive Quantization for Image Retrieval

1 code implementation16 Jun 2019 Lianli Gao, Xiaosu Zhu, Jingkuan Song, Zhou Zhao, Heng Tao Shen

In this work, we propose a deep progressive quantization (DPQ) model, as an alternative to PQ, for large scale image retrieval.

Image Retrieval Quantization +1

Deep Recurrent Quantization for Generating Sequential Binary Codes

1 code implementation16 Jun 2019 Jingkuan Song, Xiaosu Zhu, Lianli Gao, Xin-Shun Xu, Wu Liu, Heng Tao Shen

To the end, when the model is trained, a sequence of binary codes can be generated and the code length can be easily controlled by adjusting the number of recurrent iterations.

Image Retrieval Quantization +1

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