Author

Yanglei Gan

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Sep 2026

ScoreRec: Reallocating Probability Mass in Sequential Recommendation via Score-based Diffusion Modeling

Sequential recommendation generates personalized item rankings by estimating latent user-preference distributions from historical interactions. Although Diffusion Models (DMs) have gained prominence due to their exceptional capacity to capture complex distributions, current DM-based recommenders exhibit a critical limi...

Peng He, Yao Liu, Tong Luo et al. · ACM Transactions on Informat... · 0 citations

Preprint Aug 2026

Denoising the Future: Context-Aware Spectral Diffusion for Temporal Knowledge Graph Extrapolation

Temporal Knowledge Graph (TKG) extrapolation seeks to infer future facts from time-varying relational histories. Recent diffusion-based approaches improve uncertainty modeling through generative denoising, but their aggregated conditioning on subject histories may insufficiently distinguish query-specific evidence from...

Yang-Lei Gan, Peng He, Run Lin et al. · 0 citations

#artificial intelligence May 2026

DiffuSent: Towards a Unified Diffusion Framework for Aspect-Based Sentiment Analysis

DiffuSent is presented, a non-auto-regressive diffusion framework that systematically formulates all ABSA subtasks as boundary denoising diffusion processes, progressively refining boundaries over noisy states, and introduces a contrastive denoising training strategy which effectively address duplicate predictions with...

S. Long, Yanglei Gan, Xuchuan Zhou · arXiv.org · 0 citations