Search Results for author: Xiaowu Dai

Found 11 papers, 0 papers with code

An ODE Model for Dynamic Matching in Heterogeneous Networks

no code implementations20 Feb 2023 Xiaowu Dai, Hengzhi He

We study the problem of dynamic matching in heterogeneous networks, where agents are subject to compatibility restrictions and stochastic arrival and departure times.

Robust multi-item auction design using statistical learning: Overcoming uncertainty in bidders' types distributions

no code implementations2 Feb 2023 Jiale Han, Xiaowu Dai

This paper presents a novel mechanism design for multi-item auction settings with uncertain bidders' type distributions.

Density Estimation

Double Matching Under Complementary Preferences

no code implementations24 Jan 2023 Yuantong Li, Guang Cheng, Xiaowu Dai

In this paper, we propose a new algorithm for addressing the problem of matching markets with complementary preferences, where agents' preferences are unknown a priori and must be learned from data.

Thompson Sampling

Incentive-Aware Recommender Systems in Two-Sided Markets

no code implementations23 Nov 2022 Xiaowu Dai, YUAN, QI, Michael I. Jordan

Online platforms in the Internet Economy commonly incorporate recommender systems that recommend arms (e. g., products) to agents (e. g., users).

Fairness Recommendation Systems +1

On Large Batch Training and Sharp Minima: A Fokker-Planck Perspective

no code implementations2 Dec 2021 Xiaowu Dai, Yuhua Zhu

We study the statistical properties of the dynamic trajectory of stochastic gradient descent (SGD).

Post-Regularization Confidence Bands for Ordinary Differential Equations

no code implementations24 Oct 2021 Xiaowu Dai, Lexin Li

In this article, we construct post-regularization confidence band for individual regulatory function in ODE with unknown functionals and noisy data observations.

Open-Ended Question Answering

A resampling approach for causal inference on novel two-point time-series with application to identify risk factors for type-2 diabetes and cardiovascular disease

no code implementations12 Mar 2021 Xiaowu Dai, Saad Mouti, Marjorie Lima do Vale, Sumantra Ray, Jeffrey Bohn, Lisa Goldberg

Baseline data contain a pre-intervention health record of study participants, and health data after LCD intervention are recorded at the follow-up visit, providing a two-point time-series pattern without a parallel control group.

Methodology Applications

Learning Strategies in Decentralized Matching Markets under Uncertain Preferences

no code implementations29 Oct 2020 Xiaowu Dai, Michael I. Jordan

We study the problem of decision-making in the setting of a scarcity of shared resources when the preferences of agents are unknown a priori and must be learned from data.

Decision Making Fairness

Towards Theoretical Understanding of Large Batch Training in Stochastic Gradient Descent

no code implementations3 Dec 2018 Xiaowu Dai, Yuhua Zhu

In particular, we give an explicit escaping time of SGD from a local minimum in the finite-time regime and prove that SGD tends to converge to flatter minima in the asymptotic regime (although may take exponential time to converge) regardless of the batch size.

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