3 papers
cs.CV2026
TAG: Thinking with Action Unit Grounding for Facial Expression Recognition
Haobo Lin, Tianyi Bai, Jiajun Zhang +5
Facial Expression Recognition (FER) is a fine-grained visual understanding task where reliable predictions require reasoning over localized and meaningful facial cues. Recent visio…
cs.IR2026
Towards Reliable Negative Sampling for Recommendation with Implicit Feedback via In-Community Popularity
Chen Chen, Haobo Lin, Yuanbo Xu
Learning from implicit feedback is a fundamental problem in modern recommender systems, where only positive interactions are observed and explicit negative signals are unavailable.…
cs.CV2026
Synthesizing Multimodal Geometry Datasets from Scratch and Enabling Visual Alignment via Plotting Code
Haobo Lin, Tianyi Bai, Chen Chen +4
Multimodal geometry reasoning requires models to jointly understand visual diagrams and perform structured symbolic inference, yet current vision--language models struggle with com…