Search Results for author: Ping Ma

Found 11 papers, 2 papers with code

Knowledge Distillation of LLM for Automatic Scoring of Science Education Assessments

no code implementations26 Dec 2023 Ehsan Latif, Luyang Fang, Ping Ma, Xiaoming Zhai

We compared accuracy with state-of-the-art (SOTA) distilled models, TinyBERT, and artificial neural network (ANN) models.

Knowledge Distillation Mathematical Reasoning

Optimal Sampling Designs for Multi-dimensional Streaming Time Series with Application to Power Grid Sensor Data

no code implementations14 Mar 2023 Rui Xie, Shuyang Bai, Ping Ma

When applied to European power grid consumption data, the proposed leverage score based sampling methods outperform the benchmark sampling method in online estimation and prediction.

Computational Efficiency Time Series +1

An optimal transport approach for selecting a representative subsample with application in efficient kernel density estimation

no code implementations31 May 2022 Jingyi Zhang, Cheng Meng, Jun Yu, Mengrui Zhang, Wenxuan Zhong, Ping Ma

Theoretically, we show the selected subsample can be used for efficient density estimation by deriving the convergence rate for the proposed subsample kernel density estimator.

Active Learning Density Estimation +1

Large-scale optimal transport map estimation using projection pursuit

1 code implementation NeurIPS 2019 Cheng Meng, Yuan Ke, Jingyi Zhang, Mengrui Zhang, Wenxuan Zhong, Ping Ma

We theoretically show the proposed dimension reduction method can consistently estimate the most ``informative'' projection direction in each iteration.

Dimensionality Reduction

Sufficient dimension reduction for classification using principal optimal transport direction

1 code implementation NeurIPS 2020 Cheng Meng, Jun Yu, Jingyi Zhang, Ping Ma, Wenxuan Zhong

The proposed method, named principal optimal transport direction (POTD), estimates the basis of the SDR subspace using the principal directions of the optimal transport coupling between the data respecting different response categories.

Classification Dimensionality Reduction +1

A Review on Modern Computational Optimal Transport Methods with Applications in Biomedical Research

no code implementations7 Aug 2020 Jingyi Zhang, Wenxuan Zhong, Ping Ma

Optimal transport has been one of the most exciting subjects in mathematics, starting from the 18th century.

Asymptotic Analysis of Sampling Estimators for Randomized Numerical Linear Algebra Algorithms

no code implementations24 Feb 2020 Ping Ma, Xinlian Zhang, Xin Xing, Jingyi Ma, Michael W. Mahoney

In this article, we develop an asymptotic analysis to derive the distribution of RandNLA sampling estimators for the least-squares problem.

Two-sample testing

Minimax Nonparametric Two-sample Test under Smoothing

no code implementations6 Nov 2019 Xin Xing, Zuofeng Shang, Pang Du, Ping Ma, Wenxuan Zhong, Jun S. Liu

Under such a framework, the probability density comparison is equivalent to testing the presence/absence of interactions.

Two-sample testing Vocal Bursts Valence Prediction

Optimal Subsampling for Large Sample Logistic Regression

no code implementations3 Feb 2017 HaiYing Wang, Rong Zhu, Ping Ma

In this paper, we propose fast subsampling algorithms to efficiently approximate the maximum likelihood estimate in logistic regression.

regression

Optimal Subsampling Approaches for Large Sample Linear Regression

no code implementations17 Sep 2015 Rong Zhu, Ping Ma, Michael W. Mahoney, Bin Yu

For unweighted estimation algorithm, we show that its resulting subsample estimator is not consistent to the full sample OLS estimator.

regression

A Statistical Perspective on Algorithmic Leveraging

no code implementations23 Jun 2013 Ping Ma, Michael W. Mahoney, Bin Yu

A detailed empirical evaluation of existing leverage-based methods as well as these two new methods is carried out on both synthetic and real data sets.

Computational Efficiency

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