Search Results for author: Minhan Li

Found 6 papers, 1 papers with code

Reinforcement Learning Control of Robotic Knee with Human in the Loop by Flexible Policy Iteration

no code implementations16 Jun 2020 Xiang Gao, Jennie Si, Yue Wen, Minhan Li, He, Huang

We are motivated by the real challenges presented in a human-robot system to develop new designs that are efficient at data level and with performance guarantees such as stability and optimality at systems level.

Reinforcement Learning (RL)

Gradient Sampling Methods with Inexact Subproblem Solutions and Gradient Aggregation

1 code implementation15 May 2020 Frank E. Curtis, Minhan Li

In this paper, a strategy is proposed that allows the use of inexact solutions of these subproblems, which, as proved in the paper, can be incorporated without the loss of theoretical convergence guarantees.

Optimization and Control

Novel and Efficient Approximations for Zero-One Loss of Linear Classifiers

no code implementations28 Feb 2019 Hiva Ghanbari, Minhan Li, Katya Scheinberg

In this work, we show that in the case of linear predictors, the expected error and the expected ranking loss can be effectively approximated by smooth functions whose closed form expressions and those of their first (and second) order derivatives depend on the first and second moments of the data distribution, which can be precomputed.

Active Metric Learning for Supervised Classification

no code implementations28 Mar 2018 Krishnan Kumaran, Dimitri Papageorgiou, Yutong Chang, Minhan Li, Martin Takáč

We present mixed-integer optimization approaches to find optimal distance metrics that generalize the Mahalanobis metric extensively studied in the literature.

Active Learning Classification +3

Optimal Generalized Decision Trees via Integer Programming

no code implementations10 Dec 2016 Oktay Gunluk, Jayant Kalagnanam, Minhan Li, Matt Menickelly, Katya Scheinberg

Decision trees have been a very popular class of predictive models for decades due to their interpretability and good performance on categorical features.

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