Search Results for author: Mingdong Ou

Found 3 papers, 1 papers with code

Maximizing Cumulative User Engagement in Sequential Recommendation: An Online Optimization Perspective

no code implementations2 Jun 2020 Yifei Zhao, Yu-Hang Zhou, Mingdong Ou, Huan Xu, Nan Li

To maximize cumulative user engagement (e. g. cumulative clicks) in sequential recommendation, it is often needed to tradeoff two potentially conflicting objectives, that is, pursuing higher immediate user engagement (e. g., click-through rate) and encouraging user browsing (i. e., more items exposured).

Sequential Recommendation

Asymmetric Transitivity Preserving Graph Embedding

1 code implementation ‏‏‎ ‎ 2020 Mingdong Ou, Peng Cui, Jian Pei, Ziwei Zhang, Wenwu Zhu

In particular, we develop a novel graph embedding algorithm, High-Order Proximity preserved Embedding (HOPE for short), which is scalable to preserve high-order proximities of large scale graphs and capable of capturing the asymmetric transitivity.

Graph Embedding Link Prediction

Multinomial Logit Bandit with Linear Utility Functions

no code implementations8 May 2018 Mingdong Ou, Nan Li, Shenghuo Zhu, Rong Jin

In each round, the player selects a $K$-cardinality subset from $N$ candidate items, and receives a reward which is governed by a {\it multinomial logit} (MNL) choice model considering both item utility and substitution property among items.

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