4 papers
Disentangling Multiplex Spatial-Temporal Transition Graph Representation Learning for Socially Enhanced POI Recommendation
Jie Li, Haoye Dong, Zhengyang Wu +2
Next Point-of-Interest (POI) recommendation is a research hotspot in business intelligence, where users' spatial-temporal transitions and social relationships play key roles. Howev…
MemoryKT: An Integrative Memory-and-Forgetting Method for Knowledge Tracing
Mingrong Lin, Ke Deng, Zhengyang Wu +2
Knowledge Tracing (KT) is committed to capturing students' knowledge mastery from their historical interactions. Simulating students' memory states is a promising approach to enhan…
Enhancing Online Reinforcement Learning with Meta-Learned Objective from Offline Data
Shilong Deng, Zetao Zheng, Hongcai He +2
A major challenge in Reinforcement Learning (RL) is the difficulty of learning an optimal policy from sparse rewards. Prior works enhance online RL with conventional Imitation Lear…
Limit Order Book Event Stream Prediction with Diffusion Model
Zetao Zheng, Guoan Li, Deqiang Ouyang +2
Limit order book (LOB) is a dynamic, event-driven system that records real-time market demand and supply for a financial asset in a stream flow. Event stream prediction in LOB refe…