Jiawei Lu

Trust-enhanced matrix factorization using PageRank for recommender system

2017

As the most widely used recommendation algorithm, collaborative filtering (CF) has been studied for many years due to its simplicity and effectiveness. The two main categories of CF have their own shortcomings. Memory-based CF can't …

HiMA-Ecom: Enabling Joint Training of Hierarchical Multi-Agent E-commerce Assistants

2025 · ArXiv.org

Hierarchical multi-agent systems based on large language models (LLMs) have become a common paradigm for building AI assistants in vertical domains such as e-commerce, where a master agent coordinates multiple specialized sub-agents. Despite their practical …