# Fingerprint Dive into the research topics where Han Liu is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

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### Mathematics

Alternating Direction Method

Canonical Correlation Analysis

Compressed Sensing

Confidence Region

Convex Minimization

Coordinate Descent

Copula

Correlation Matrix

Covariance Matrix Estimation

Covariance matrix

Elastic Net

Estimate

Estimator

Gaussian Model

Genomics

Graph in graph theory

Graphical Models

High-dimensional

Higher Dimensions

Hypothesis Testing

Iteration

Kendall's tau

Lasso

Latent Variable Models

Method of multipliers

Minimax

Mining

Multi-task Learning

Multiple Testing

Nonconvex Optimization

Numerical Results

Optimization

Optimization Algorithm

Parameter Estimation

Penalty

Principal Component Analysis

Rate of Convergence

Recovery

Regression

Regularization

Sample Size

Scale Invariant

Semiparametric Model

Sparse matrix

Sparsity

Test Statistic

Testing

Thresholding

Undirected Graph

Variable Selection

### Engineering & Materials Science

Approximation algorithms

Artificial intelligence

Association rules

Brain

Calibration

Collision avoidance

Compressed sensing

Computational efficiency

Computer simulation

Constrained optimization

Convex optimization

Covariance matrix

Discriminant analysis

Eigenvalues and eigenfunctions

Experiments

Factorization

Feature extraction

Gaussian distribution

Gene expression

Genes

Global optimization

Hidden Markov models

Independent component analysis

Labels

Learning algorithms

Learning systems

Linear programming

Linear regression

Logistics

Mass spectrometry

Microarrays

Miners

Motion planning

Parameter estimation

Peptides

Principal component analysis

Probability density function

Proteins

Recovery

Reinforcement learning

Robotics

Semantics

Signal processing

Singular value decomposition

Statistics

Supervised learning

Time series

Tissue

Tuning

XML

### Business & Economics

Graphical models