Search Results for author: Simon Mak

Found 13 papers, 1 papers with code

Targeted Variance Reduction: Robust Bayesian Optimization of Black-Box Simulators with Noise Parameters

no code implementations6 Mar 2024 John Joshua Miller, Simon Mak

In such applications, the simulator often takes the form $f(\mathbf{x},\boldsymbol{\theta})$, where $\boldsymbol{\theta}$ are parameters that are uncertain in practice.

Bayesian Optimization Robust Design

$e^{\text{RPCA}}$: Robust Principal Component Analysis for Exponential Family Distributions

no code implementations30 Oct 2023 Xiaojun Zheng, Simon Mak, Liyan Xie, Yao Xie

Robust Principal Component Analysis (RPCA) is a widely used method for recovering low-rank structure from data matrices corrupted by significant and sparse outliers.

Defect Detection

Trigonometric Quadrature Fourier Features for Scalable Gaussian Process Regression

no code implementations23 Oct 2023 Kevin Li, Max Balakirsky, Simon Mak

Fourier feature approximations have been successfully applied in the literature for scalable Gaussian Process (GP) regression.

regression

Additive Multi-Index Gaussian process modeling, with application to multi-physics surrogate modeling of the quark-gluon plasma

no code implementations11 Jun 2023 Kevin Li, Simon Mak, J. -F Paquet, Steffen A. Bass

The Quark-Gluon Plasma (QGP) is a unique phase of nuclear matter, theorized to have filled the Universe shortly after the Big Bang.

Variational Inference

Hierarchical shrinkage Gaussian processes: applications to computer code emulation and dynamical system recovery

no code implementations1 Feb 2023 Tao Tang, Simon Mak, David Dunson

A widely-used emulator is the Gaussian process (GP), which provides a flexible framework for efficient prediction and uncertainty quantification.

Gaussian Processes Uncertainty Quantification

PERCEPT: a new online change-point detection method using topological data analysis

no code implementations8 Mar 2022 Xiaojun Zheng, Simon Mak, Liyan Xie, Yao Xie

This yields a non-parametric, topology-aware framework which can efficiently detect online changes from high-dimensional data streams.

Change Point Detection Topological Data Analysis

BacHMMachine: An Interpretable and Scalable Model for Algorithmic Harmonization for Four-part Baroque Chorales

no code implementations15 Sep 2021 Yunyao Zhu, Stephen Hahn, Simon Mak, Yue Jiang, Cynthia Rudin

Algorithmic harmonization - the automated harmonization of a musical piece given its melodic line - is a challenging problem that has garnered much interest from both music theorists and computer scientists.

Gaussian Process Subspace Regression for Model Reduction

1 code implementation9 Jul 2021 Ruda Zhang, Simon Mak, David Dunson

In PROM, each parameter point can be associated with a subspace, which is used for Petrov-Galerkin projections of large system matrices.

Model Selection regression +1

Sequential change-point detection for mutually exciting point processes over networks

no code implementations10 Feb 2021 Haoyun Wang, Liyan Xie, Yao Xie, Alex Cuozzo, Simon Mak

We present a new CUSUM procedure for sequentially detecting change-point in the self and mutual exciting processes, a. k. a.

Change Detection Change Point Detection +1

TSEC: a framework for online experimentation under experimental constraints

no code implementations17 Jan 2021 Simon Mak, Yuanshuo Zhou, Lavonne Hoang, C. F. Jeff Wu

We propose a new Thompson Sampling under Experimental Constraints (TSEC) method, which addresses this so-called "arm budget constraint".

Portfolio Optimization Thompson Sampling

Bayesian Uncertainty Quantification for Low-Rank Matrix Completion

no code implementations5 Jan 2021 Henry Shaowu Yuchi, Simon Mak, Yao Xie

We consider the problem of uncertainty quantification for an unknown low-rank matrix $\mathbf{X}$, given a partial and noisy observation of its entries.

Decision Making Low-Rank Matrix Completion Methodology

Uncertainty Quantification for Inferring Hawkes Networks

no code implementations NeurIPS 2020 Haoyun Wang, Liyan Xie, Alex Cuozzo, Simon Mak, Yao Xie

Multivariate Hawkes processes are commonly used to model streaming networked event data in a wide variety of applications.

Uncertainty Quantification

Distributional Clustering: A distribution-preserving clustering method

no code implementations14 Nov 2019 Arvind Krishna, Simon Mak, Roshan Joseph

One key use of k-means clustering is to identify cluster prototypes which can serve as representative points for a dataset.

Clustering

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