Search Results for author: Boxin Zhao

Found 8 papers, 5 papers with code

Addressing Budget Allocation and Revenue Allocation in Data Market Environments Using an Adaptive Sampling Algorithm

1 code implementation5 Jun 2023 Boxin Zhao, Boxiang Lyu, Raul Castro Fernandez, Mladen Kolar

Data markets help with identifying valuable training data: model consumers pay to train a model, the market uses that budget to identify data and train the model (the budget allocation problem), and finally the market compensates data providers according to their data contribution (revenue allocation problem).

Fraud Detection

Latent Multimodal Functional Graphical Model Estimation

no code implementations31 Oct 2022 Katherine Tsai, Boxin Zhao, Sanmi Koyejo, Mladen Kolar

Joint multimodal functional data acquisition, where functional data from multiple modes are measured simultaneously from the same subject, has emerged as an exciting modern approach enabled by recent engineering breakthroughs in the neurological and biological sciences.

L-SVRG and L-Katyusha with Adaptive Sampling

no code implementations31 Jan 2022 Boxin Zhao, Boxiang Lyu, Mladen Kolar

Stochastic gradient-based optimization methods, such as L-SVRG and its accelerated variant L-Katyusha (Kovalev et al., 2020), are widely used to train machine learning models. The theoretical and empirical performance of L-SVRG and L-Katyusha can be improved by sampling observations from a non-uniform distribution (Qian et al., 2021).

Adaptive Client Sampling in Federated Learning via Online Learning with Bandit Feedback

1 code implementation28 Dec 2021 Boxin Zhao, Lingxiao Wang, Mladen Kolar, Ziqi Liu, Zhiqiang Zhang, Jun Zhou, Chaochao Chen

As a result, client sampling plays an important role in FL systems as it affects the convergence rate of optimization algorithms used to train machine learning models.

Federated Learning Stochastic Optimization

High-dimensional Functional Graphical Model Structure Learning via Neighborhood Selection Approach

1 code implementation6 May 2021 Boxin Zhao, Percy S. Zhai, Y. Samuel Wang, Mladen Kolar

We propose a neighborhood selection approach to estimate the structure of Gaussian functional graphical models, where we first estimate the neighborhood of each node via a function-on-function regression and subsequently recover the entire graph structure by combining the estimated neighborhoods.

Dimensionality Reduction EEG +1

FuDGE: A Method to Estimate a Functional Differential Graph in a High-Dimensional Setting

no code implementations11 Mar 2020 Boxin Zhao, Y. Samuel Wang, Mladen Kolar

We first define a functional differential graph that captures the differences between two functional graphical models and formally characterize when the functional differential graph is well defined.

EEG

Direct Estimation of Differential Functional Graphical Models

1 code implementation NeurIPS 2019 Boxin Zhao, Y. Samuel Wang, Mladen Kolar

We consider the problem of estimating the difference between two functional undirected graphical models with shared structures.

EEG

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