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Yeung Yeung Leung
Computational Neuroscience [PhD] with machine learning expertise in in silico perturbation, gene target nomination, causal inference, spatial temporal modeling

Interest

Develop innovative ML models for cutting edge biomedical applications:

I am an experienced machine learning data scientist with a PhD background in Computational Neuroscience. My project interface various machine learning domains, including dynamical systems, LLMs and GNN, serving the aim to facilitate mechanistically backed target nominations and perturbation simulation. I am a frequent participant in medtech Hackathons, where I enjoyed creating novel analytical solutions for complex real-world problems. My career goal is to bring disruptive impact to our society via cutting edge technologies.

Current Position

Data Scientist - Omics data - Machine learning application, GSK

Develop ML pipeline to perform target nomination, causal network inference and in silico perturbation

- Design and establish workflow that integrate different ML tools and multi-omics readouts for target nomination, in silico perturbation and mechanistic inference

Benchmarking and optimization of statistical, LLMs and generative models

- Dynamical systems, foundation models, VAE, GNN, LLMs evaluation of predictive output

Work experience

Research Associate , Imperial College London

Annotation of patient disease profile via natural language processing of clinical documents

- Optical character recognition, RegEx pattern matching, Name Entity Recognition,pre-trained Bert text embedding

Genome wide association study of neurodegenerative diseases

- Detect potential causal genetic variants in a sample that comprised of 2.6 millions Single Nucleotide Polymorphisms (Linear Mixed Effect Model, LDSC, MAGMA, gene set enrichment)

- Evaluate the causal relationship of hit genes using eQTL data (Bayes Factor colocalization), single cell RNAseq (MAGMA cell type specificity), and tissue transcriptomics (WGCNA)

Designed a browser application for users to search for genotypes information (R shiny)

Past Project

Principal Investigator, The Alan Turing Institute Data Science Hackathon

• Modelling Amyloid Beta Plaque Formation in Alzheimer's Disease using VAE and VGG-16   - Development of image segmentation methodology to automatically extract amyloid plaque regions from immunohistochemistry stainned brain images
  - Leverage Variational Autoencoder (VAE) and pretrained VGG-16 convolutional neural network for the extraction of amyloid plaque morphological features

Project link

Work experience

Research Associate , University College London

• Identify the key features in brain oscillation that influence motor-behavioral outcome
  - Time frequency spectral analysis, linear mixed effects models, permutation statistics
  - Created recurrent neural networks (LSTM, GRU) and Bayesian optimized XGBoost models to learn the relationship between brain oscillations and motor behavior
  - Using SHAP approach to evaluate the key determinants in model decision
• Generated a data processing pipeline for the neurophysiological and behavioral data
  - Multi-sources data extraction, alignment, noise detection and removal
  - Neuronal spike sorting: filtering, SVD whitening, PCA, superparamagnetic clustering
• Designed and engineered training devices for monkeys
  - Programmed an android app and Arduino device for cue delivery and trial counting
• 3D registration of brain recording location using stereotaxic and MRI image coordinates
  - MRI brain image processing, 3D rigid transform
• Performed brain implants and electromyography surgeries as the second surgeon

Education


title

PhD

Computational Neuroscience

PhD Ruprecht-Karls-Universität Heidelberg

• Grade: “magna cum laude”
• Investigation of a novel mechanism in synaptic vesicle release
- patch clamp recordings, virus production and purification, shRNA design, cloning
• Validation of a mathematical model of calcium dynamics in synaptic boutons
- Optical device assembly and imaging parameters optimization
- Designed a high-throughput pipeline for quantitative time serious image analysis
- image alignment, noise filtering, artifact removal, automatic ROI detection
• Supervision of undergraduate and master students
• Teaching of 10-15 undergraduate students at practical laboratory sessions
• Organization of conferences

Neuroscience

MPhil The Chinese University of Hong Kong

• Investigation of the effects of iron-loading on the memory formation in the rat
- Multi-electrode field potential recording of hippocampal long term potentiation
- Acute brain slice preparation, transcardial perfusion, brain region dissection
• Teaching of 40-60 medical students at practical laboratory sessions

title

BSc

Molecular Biotechnology

BSc The Chinese University of Hong Kong

• Genetic association study of Reading Disability
- TaqMan Single Nucleotide Polymorphisms genotyping
Measurement of mRNA expression levels in human tissues