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Hi, I'm Malitha πŸ‘‹

I'm a Machine Learning Engineer and Data Scientist with experience developing applied AI and machine learning solutions across healthcare, medical imaging, computer vision, sensor analytics, seismic data, video analysis, and software engineering.

I completed my PhD at the University of Auckland, where my research focused on robust, uncertainty-aware, and scalable deep learning for bi-atrial segmentation from LGE-MRI in atrial fibrillation. My work brings together medical image analysis, representation learning, uncertainty estimation, model calibration, and clinically meaningful evaluation.

Alongside my research, I have worked on end-to-end machine learning systems involving seismic waveform analysis, anomaly detection, video analytics, physiological signals, medical images, audio, and structured data.

πŸ”¬ Current Interests

  • Machine Learning and Deep Learning
  • Computer Vision and Medical Image Analysis
  • Self-Supervised and Representation Learning
  • Uncertainty Estimation and Model Calibration
  • Time-Series and Sensor Analytics
  • Generative AI, LLMs and Retrieval-Augmented Generation
  • Reliable and Scalable Machine Learning Systems

πŸ› οΈ Technical Stack

Languages: Python, SQL, MATLAB, Go, JavaScript, Bash, R

Machine Learning: PyTorch, TensorFlow, Keras, scikit-learn

AI & GenAI: LLMs, RAG, LangChain, CrewAI, vector databases, AI agents

Data & MLOps: Docker, Airflow, MLflow, PySpark, Kafka, Git, Linux

Domains: Medical Imaging, Computer Vision, Time Series, Sensor Analytics, Video Analysis, Signal Processing

πŸ’‘ Selected Work

Seismic Phase Picking and Event Analysis

Developing machine learning pipelines for automated P- and S-wave phase identification across thousands of seismic events and station recordings, including model evaluation, uncertainty analysis, and earthquake-location workflows.

Bi-Atrial Segmentation from LGE-MRI

Developed deep-learning methods for segmentation of the left and right atrial cavities and walls, with a focus on robustness, uncertainty, generalisation, and clinically meaningful evaluation.

Video Self-Supervised Learning

Research on self-supervised representation learning for video understanding, including work spanning multiple families of video learning tasks.

Computer Vision for Surveillance

Developed deep-learning-based video analytics for CCTV systems operating across thousands of cameras, including false-alarm reduction and deployment-oriented model debugging.

πŸ“š Research

My research spans:

  • Medical image segmentation
  • Self-supervised learning
  • Uncertainty-aware deep learning
  • Model calibration
  • Video understanding
  • Semi-supervised learning
  • Representation learning

You can find my publications through my Google Scholar.

🌐 Connect

I'm particularly interested in building reliable AI systems that translate complex real-world data into practical and measurable outcomes.

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