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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Hyun Kwon

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Aug 2026

Selective access control for medical image classification via friend-safe semantic-aware reversible adversarial examples

A unified framework called Friend-Safe Semantic-Aware Reversible Adversarial Examples (FS-SA-RAE), which integrates three complementary mechanisms: a friend-safe attack that employs dual-objective optimization to fool unauthorized (foe) models while preserving classification accuracy for authorized (friend) models, enabling selective access control and reversible data hiding based on histogram shifting.

Hyun Kwon · 0 citations
Jul 2026

Crafting evasive phishing URLs: exploiting tokenizer vulnerabilities in transformer-based detection systems

This paper proposes Homoglyph-Guided Beam Search (HG-BS), an adversarial attack framework that generates evasive URLs preserving both visual appearance and functional validity under strict structural constraints, and establishes that current high-accuracy URL detectors rely on fragile token patterns rather than robust semantic understanding.

Junhyeong Lee, Hyun Kwon · 0 citations

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