Yujia Liu

Protecting Privacy in Shared Photos via Adversarial Examples Based Stealth

2017 · Security and Communication Networks

Online image sharing in social platforms can lead to undesired privacy disclosure. For example, some enterprises may detect these large volumes of uploaded images to do users’ in-depth preference analysis for commercial purposes. And their …

Detection Based Defense Against Adversarial Examples From the Steganalysis Point of View

2019

Deep Neural Networks (DNNs) have recently led to significant improvements in many fields. However, DNNs are vulnerable to adversarial examples which are samples with imperceptible perturbations while dramatically misleading the DNNs. Moreover, adversarial examples can …

Visual and Phonological Feature Enhanced Siamese BERT for Chinese Spelling Error Correction

2022 · Applied Sciences

Chinese Spelling Check (CSC) aims to detect and correct spelling errors in Chinese. Most CSC models rely on human-defined confusion sets to narrow the search space, failing to resolve errors outside the confusion set. However, …

Mentigo: An Intelligent Agent for Mentoring Students in the Creative Problem Solving Process

2025

Creative Problem-Solving (CPS) promotes creative and critical thinking while enhancing real-world problem-solving skills, making it essential for middle school education.However, providing personalized mentorship in CPS projects at scale is challenging due to resource constraints and …