18 citations · 75 across the 12 of their papers we have counts for
5 papers · 1 filter
Traffic4cast 2020 -- Graph Ensemble Net and the Importance of Feature And Loss Function Design for Traffic Prediction
Qi Qi, Pak Hay Kwok
This paper details our solution to Traffic4cast 2020. Similar to Traffic4cast 2019, Traffic4cast 2020 challenged its contestants to develop algorithms that can predict the future t…
Variance-Reduced Off-Policy Memory-Efficient Policy Search
Daoming Lyu, Qi Qi, Mohammad Ghavamzadeh +3
Off-policy policy optimization is a challenging problem in reinforcement learning (RL). The algorithms designed for this problem often suffer from high variance in their estimators…
Optimally Integrating Ad Auction into E-Commerce Platforms
Weian Li, Qi Qi, Changjun Wang +1
Advertising becomes one of the most popular ways of monetizing an online transaction platform. Usually, sponsored advertisements are posted on the most attractive positions to enha…
An Online Method for A Class of Distributionally Robust Optimization with Non-Convex Objectives
Qi Qi, Zhishuai Guo, Yi Xu +2
In this paper, we propose a practical online method for solving a class of distributionally robust optimization (DRO) with non-convex objectives, which has important applications i…
Computations and Complexities of Tarski's Fixed Points and Supermodular Games
Chuangyin Dang, Qi Qi, Yinyu Ye
We consider two models of computation for Tarski's order preserving function f related to fixed points in a complete lattice: the oracle function model and the polynomial function…