UGOCHUKWU O. UGWU, Ph.D.

Ugochukwu Ugwu, Ph.D.

Postdoctoral Fellow in Data Science and Machine Learning

Pattern Analysis Lab (PAL)

Department of Mathematics

Colorado State University

Fort Collins, Colorado, US

Email: Ugochukwu.Ugwu@colostate.edu

Google Scholar LinkedIn ResearchGate Resume Spotlight

INTERESTS: Data (Image) Reconstruction, Multidimensional (Tensor) Data Analysis, Machine Learning (ML), Natural Language Processing (NLP), Sparse Optimization.

ML SKILLS: Data Cleaning and Processing, Feature Selection and Importance, Dimensionality Reduction, Anomaly Detection, Prediction and Classification Tasks, Biological Data Analysis (of Gene Expression Data), Knowledge of Pandas, NumPy, Matplotlib, and Scikit-learn.

SELECTED ONGOING WORK AND PUBLICATIONS

Transfer Learning of Bacterial Strains from the Lungs to the Spleen Using Non-Parallel Proximal Support Vector Machine (ongoing with M. Kirby).
Machine Learning-Based Techniques for Identifying Differentially to Discriminatively Expressed Genes in MERS-infected Camelids using GSVD (ongoing with M. Kirby, R. Bowen, A. Rasmussen).
Comparative Analysis of Gene Expression Data from MERS-CoV Infected Camelids using GSVD and Sparse q-norm, 0<q<1, Least Squares Support Vector Machine (ongoing with M. Kirby, R. Bowen, A. Rasmussen).
Sparse q-norm, 0<q<=1, Generalized Eigenvalue Problem with Support Vector Machine for Gene Selection and Classification (ongoing with M. Kirby, R. Bowen, A. Rasmussen).
Tensor Golub-Kahan-Tikhonov method applied to the solution of ill-posed problems with a t-product structure (with L. Reichel), 2021, Numer. Linear Algebra Appl., 29 (1), e2412 (2022).
Tensor Arnoldi-Tikhonov and GMRES-type methods for ill-posed problems with a t-product structure (with L. Reichel), 2020, Journal of Scientific Computing 90, 59 (2022).
Tensor Krylov subspace methods with an invertible linear transform product applied to image processing (with L. Reichel), Appl. Numer. Math., 166, pp. 186-207 (2021).
Weighted tensor Golub-Kahan-Tikhonov-type methods applied to image processing using a t-product (with L. Reichel). Journal of Comput. and Applied Math, 114488 (2022).
Tensor regularization by truncated iteration: a comparison of some solution methods of large-scale linear discrete ill-posed problems with a t-product (with L. Reichel), 2021, arXiv preprint arXiv:2110.02485
Modelling the view factor of a 'grain-like' observer near afield a tilted pool fire via planar approximation approach (with C. J. Budd), Appl. of Math. Modell., 65 (2019), pp. 23-33.
An Intense Urge micturition model for a slowly varying Urethral Diameter, International Journal of Scientific and Engineering Research (IJSER), 6 (2015), pp. 789-794.
Modelling the performance of two-channeled Haemodialyser with single rectangular membrane – Asymptotic and numerical approximation, IJSER, 6 (2015), pp. 777-788.
Iterative tensor factorization based on Krylov subspace-type methods with applications to image processing (Ph.D. Dissertation, 2021).
Radiation modeling near and asymptotically far afield: A case of a pool fire (Master’s Thesis, 2015).

CONFERENCES

Sept. 2022: Minisymposium on Integrating Data in Infectious Disease Modeling at SIAM Mathematics of Data Science (MDS22) Conference in San Diego, CA (Invited Talk).
- - Title: Machine learning-based comparative analysis of gene expressions from MERS-infected Alpacas using GSVD.
June 2022: Conference on Numerical Methods for Large Scale Problems in Belgrade, Serbia, June 2022. (Invited Talk, Abstract Submitted).
- - Title: Ill-posed problems for third order tensors: tensorize or matricize?
March 2021: Minisymposium on Early Career Research in Inverse Problems at SIAM Conference on Imaging Science (IS22), March 22-25, 2021, Berlin, Germany (Invited Talk).
- Title: Weighted tensor Golub-Kahan-Tikhonov-type methods applied to image processing using a t-product.
May 2021: Minisymposium on Applications of Linear Algebra to Inverse Problems at SIAM Conference on Applied Linear Algebra (LA21), May 17-21, 2021, New Orleans, LA (Invited Talk).
- Title: Ill-posed Problems for Third Order Tensors with a t-product structure applied to image processing.
Mar. 2021: SIAM Conference on Computational Science and Engineering (CSE21), Fort Worth, TX. Participant in the Broader Engagement Program (BE@CSE21), Sustainable Horizon Institute.

Page updated

Google Sites

Report abuse