7 papers
A Hybrid Co-Finetuning Approach for Visual Bug Detection in Video Games
Faliu Yi, Sherif Abdelfattah, Wei Huang +1
Manual identification of visual bugs in video games is a resource-intensive and costly process, often demanding specialized domain knowledge. While supervised visual bug detection…
PIG-Nav: Key Insights for Pretrained Image Goal Navigation Models
Jiansong Wan, Chengming Zhou, Jinkua Liu +14
Recent studies have explored pretrained (foundation) models for vision-based robotic navigation, aiming to achieve generalizable navigation and positive transfer across diverse env…
Temporal Graph Memory Networks For Knowledge Tracing
Seif Gad, Sherif Abdelfattah, Ghodai Abdelrahman
Tracing a student's knowledge growth given the past exercise answering is a vital objective in automatic tutoring systems to customize the learning experience. Yet, achieving this…
A Robust Policy Bootstrapping Algorithm for Multi-objective Reinforcement Learning in Non-stationary Environments
Sherif Abdelfattah, Kathryn Kasmarik, Jiankun Hu
Multi-objective Markov decision processes are a special kind of multi-objective optimization problem that involves sequential decision making while satisfying the Markov property o…
Intrinsically Motivated Hierarchical Policy Learning in Multi-objective Markov Decision Processes
Sherif Abdelfattah, Kathryn Merrick, Jiankun Hu
Multi-objective Markov decision processes are sequential decision-making problems that involve multiple conflicting reward functions that cannot be optimized simultaneously without…
Preference-conditioned Pixel-based AI Agent For Game Testing
Sherif Abdelfattah, Adrian Brown, Pushi Zhang
The game industry is challenged to cope with increasing growth in demand and game complexity while maintaining acceptable quality standards for released games. Classic approaches s…
DBE-KT22: A Knowledge Tracing Dataset Based on Online Student Evaluation
Ghodai Abdelrahman, Sherif Abdelfattah, Qing Wang +1
Online education has gained an increasing importance over the last decade for providing affordable high-quality education to students worldwide. This has been further magnified dur…