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Weijie Jiang

3 accepted papers

2026

Save, Revisit, Retain: A Scalable Framework for Enhancing User Retention in Large-Scale Recommender Systems

AAAI 2026technical

User retention is a critical objective for online platforms like Pinterest, as it strengthens user loyalty and drives growth through repeated engagement. A key indicator of retention is revisitation, i.e., when users return to view previously saved content, a behavior often sparked by personalized r

Cited by 0SourcePDFScholar
2021

Item Response Ranking for Cognitive Diagnosis

IJCAI 2021poster

Cognitive diagnosis, a fundamental task in education area, aims at providing an approach to reveal the proficiency level of students on knowledge concepts. Actually, monotonicity is one of the basic conditions in cognitive diagnosis theory, which assumes that student's proficiency is monotonic with…

Cited by 34SourcePDFScholar
2021

Learning to Navigate in a VUCA Environment: Hierarchical Multi-expert Approach

IROS 2021poster

Despite decades of efforts, robot navigation in a real scenario with volatility, uncertainty, complexity, and ambiguity (VUCA for short), remains a challenging topic. Inspired by the central nervous system (CNS), we propose a hierarchical multi-expert learning framework for autonomous navigation in…

Cited by 9SourceScholar