Authors

Yu Xia

Publications 2

Preprint Open access

Personal-Agent Mediated Recommendation with Cross-Platform User History

Yu Xia, Jiangfan Zhang, Jun Xiao et al. · 2026

Modern recommendation is shifting from platform-centric personalization toward user-governed personalization, where a personal LLM agent can act on the user's behalf across services. We formalize this emerging paradigm as Personal-Agent Mediated Recommendation: a platform recommender ranks a candidate set using platfor …

Preprint Open access

SmoothOperator: Enhancing Representations for Fine-grained Open-set Recognition via Modulated Label Smoothing

Thiru Thillai Nadarasar Bahavan, Yu Xia, Sachith Seneviratne et al. · 2026

Open Set Recognition (OSR) aims to enable models to accurately classify known classes while rejecting samples from unseen classes. A key challenge in OSR lies in the inability to model the unbounded distribution of unknown classes during training, often leading to the misclassification of samples from these classes. Ra …

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