Search Results for author: Ching-Chun Chang

Found 11 papers, 0 papers with code

Cyber-Physical Steganography in Robotic Motion Control

no code implementations8 Jan 2025 Ching-Chun Chang, Yijie Lin, Isao Echizen

Steganography, the art of information hiding, has continually evolved across visual, auditory and linguistic domains, adapting to the ceaseless interplay between steganographic concealment and steganalytic revelation.

Steganography in Game Actions

no code implementations11 Dec 2024 Ching-Chun Chang, Isao Echizen

As a proof of concept, we exemplify action steganography through the game of labyrinth, a navigation task where subliminal communication is concealed within the act of steering toward a destination.

Multi-agent Reinforcement Learning

Psychometrics for Hypnopaedia-Aware Machinery via Chaotic Projection of Artificial Mental Imagery

no code implementations29 Sep 2024 Ching-Chun Chang, Kai Gao, Shuying Xu, Anastasia Kordoni, Christopher Leckie, Isao Echizen

Neural backdoors represent insidious cybersecurity loopholes that render learning machinery vulnerable to unauthorised manipulations, potentially enabling the weaponisation of artificial intelligence with catastrophic consequences.

Backdoor Attack

Agentic Copyright Watermarking against Adversarial Evidence Forgery with Purification-Agnostic Curriculum Proxy Learning

no code implementations3 Sep 2024 Erjin Bao, Ching-Chun Chang, Hanrui Wang, Isao Echizen

With the proliferation of AI agents in various domains, protecting the ownership of AI models has become crucial due to the significant investment in their development.

Rethinking Invariance Regularization in Adversarial Training to Improve Robustness-Accuracy Trade-off

no code implementations22 Feb 2024 Futa Waseda, Ching-Chun Chang, Isao Echizen

Although adversarial training has been the state-of-the-art approach to defend against adversarial examples (AEs), it suffers from a robustness-accuracy trade-off, where high robustness is achieved at the cost of clean accuracy.

Knowledge Distillation Representation Learning +1

Image-Text Out-Of-Context Detection Using Synthetic Multimodal Misinformation

no code implementations29 Jan 2024 Fatma Shalabi, Huy H. Nguyen, Hichem Felouat, Ching-Chun Chang, Isao Echizen

Misinformation has become a major challenge in the era of increasing digital information, requiring the development of effective detection methods.

Misinformation Synthetic Data Generation

Enhancing Robustness of LLM-Synthetic Text Detectors for Academic Writing: A Comprehensive Analysis

no code implementations16 Jan 2024 Zhicheng Dou, Yuchen Guo, Ching-Chun Chang, Huy H. Nguyen, Isao Echizen

In this paper, we present a comprehensive analysis of the impact of prompts on the text generated by LLMs and highlight the potential lack of robustness in one of the current state-of-the-art GPT detectors.

Automation of reversible steganographic coding with nonlinear discrete optimisation

no code implementations26 Feb 2022 Ching-Chun Chang

Steganography can serve as an authentication solution through the use of a digital signature embedded in a carrier object to ensure the integrity of the object and simultaneously lighten the burden of metadata management.

Management Medical Diagnosis

On the predictability in reversible steganography

no code implementations5 Feb 2022 Ching-Chun Chang, Xu Wang, Sisheng Chen, Hitoshi Kiya, Isao Echizen

The core strength of neural networks is the ability to render accurate predictions for a bewildering variety of data.

Bayesian Neural Networks for Reversible Steganography

no code implementations7 Jan 2022 Ching-Chun Chang

A fundamental pillar of reversible steganography is predictive modelling which can be realised via deep neural networks.

Deep Learning

Deep Learning for Predictive Analytics in Reversible Steganography

no code implementations13 Jun 2021 Ching-Chun Chang, Xu Wang, Sisheng Chen, Isao Echizen, Victor Sanchez, Chang-Tsun Li

Given that reversibility is governed independently by the coding module, we narrow our focus to the incorporation of neural networks into the analytics module, which serves the purpose of predicting pixel intensities and a pivotal role in determining capacity and imperceptibility.

Deep Learning

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