Search Results for author: Hamid Usefi

Found 5 papers, 2 papers with code

Assessing the Reproducibility of Machine-learning-based Biomarker Discovery in Parkinson's Disease

no code implementations6 Apr 2023 Ali Amelia, Lourdes Pena-Castillo, Hamid Usefi

However, GWAS studies have technical variations that affect the reproducibility of identified biomarkers, such as differences in genotyping platforms and selection criteria for individuals to be genotyped.

Data Integration feature selection

Clustering, multicollinearity, and singular vectors

no code implementations7 Aug 2020 Hamid Usefi

Let $A$ be a matrix with its pseudo-matrix $A^{\dagger}$ and set $S=I-A^{\dagger}A$.

feature selection

Detecting ulcerative colitis from colon samples using efficient feature selection and machine learning

no code implementations4 Aug 2020 Hanieh Marvi Khorasani, Hamid Usefi, Lourdes Peña-Castillo

In this work, we used a recently developed feature selection algorithm (DRPT) combined with a support vector machine (SVM) classifier to generate a model to discriminate between healthy subjects and subjects with UC based on the expression values of 32 genes in colon samples.

BIG-bench Machine Learning feature selection

High-Dimensional Feature Selection for Genomic Datasets

1 code implementation27 Feb 2020 Majid Afshar, Hamid Usefi

We cluster features first based on $\Delta\mathbf{x}$ and then using the entropy of features.

Dimensionality Reduction feature selection +1

A Feature Selection Based on Perturbation Theory

2 code implementations26 Feb 2019 Javad Rahimipour Anaraki, Hamid Usefi

Consider a supervised dataset $D=[A\mid \textbf{b}]$, where $\textbf{b}$ is the outcome column, rows of $D$ correspond to observations, and columns of $A$ are the features of the dataset.

feature selection

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