Search Results for author: Diqun Yan

Found 9 papers, 3 papers with code

BadSQA: Stealthy Backdoor Attacks Using Presence Events as Triggers in Non-Intrusive Speech Quality Assessment

no code implementations4 Sep 2023 Ying Ren, Kailai Shen, Zhe Ye, Diqun Yan

Non-Intrusive speech quality assessment (NISQA) has gained significant attention for predicting the mean opinion score (MOS) of speech without requiring the reference speech.

Backdoor Attack

Universal Defensive Underpainting Patch: Making Your Text Invisible to Optical Character Recognition

1 code implementation4 Aug 2023 Jiacheng Deng, Li Dong, Jiahao Chen, Diqun Yan, Rangding Wang, Dengpan Ye, Lingchen Zhao, Jinyu Tian

In this work, we propose a novel and effective defense mechanism termed the Universal Defensive Underpainting Patch (UDUP) that modifies the underpainting of text images instead of the characters.

Optical Character Recognition Optical Character Recognition (OCR)

Fake the Real: Backdoor Attack on Deep Speech Classification via Voice Conversion

no code implementations28 Jun 2023 Zhe Ye, Terui Mao, Li Dong, Diqun Yan

This work explores a backdoor attack that utilizes sample-specific triggers based on voice conversion.

Backdoor Attack Voice Conversion

Semi-Supervised Semantic Segmentation with Cross Teacher Training

1 code implementation Neurocomputing 2022 Hui Xiao, Li Dong, Kangkang Song, Hao Xu, Shuibo Fu, Diqun Yan, Chengbin Peng

In experiments, the cross-teacher module significantly improves the performance of traditional student-teacher approaches, and our framework outperforms stateof-the-art methods on benchmark datasets.

Contrastive Learning Semi-Supervised Semantic Segmentation

Detecting and Recovering Adversarial Examples from Extracting Non-robust and Highly Predictive Adversarial Perturbations

no code implementations30 Jun 2022 Mingyu Dong, Jiahao Chen, Diqun Yan, Jingxing Gao, Li Dong, Rangding Wang

Experimental results show that the proposed method can not only detect the adversarial examples with high accuracy, but also detect the specific category of the AEs.

Adversarial Privacy Protection on Speech Enhancement

1 code implementation16 Jun 2022 Mingyu Dong, Diqun Yan, Rangding Wang

Experimental results show that generated adversarial examples can erase most content information in original examples or replace it with target speech content through speech enhancement.

Speech Enhancement

Residual-Guided Non-Intrusive Speech Quality Assessment

no code implementations22 Mar 2022 Zhe Ye, Jiahao Chen, Diqun Yan

We generate an enhanced speech on the impaired speech to compensate for the absence of the reference audio, then pair the information of residuals with the impaired speech.

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