Vivek.portfolio

Projects

Research and engineering case studies

Selected work across scientific machine learning, cybersecurity systems, and recommendation engineering.

Conceptual diagram of coarse meteorological fields resolving into a finer regional grid.

Scientific Machine Learning / Climate Downscaling

Robust Earth Forecast

A research software pipeline for ERA5-to-PRISM temperature downscaling, focused on high-resolution spatial reconstruction, terrain-aware residual modeling, and boundary diagnostics.

Spatial reconstruction and boundary diagnostics; historical RMSE 2.37 to 1.57

Active research codebase; temporal modeling is archived while spatial reconstruction limits are being diagnosed.

Python PyTorch PyTorch Lightning xarray
Conceptual diagram of sender, risk assessment, adaptive security mode, receiver, and admin recovery states.

Cybersecurity / Full-Stack Systems

Adaptive Network Security System

A Java, Spring Boot, and React research system modeling secure communication as an attack-defense-recovery workflow with adaptive security modes.

CPHS shows about 3.3x lower compromise ratio than NORMAL in the recorded high-intensity sample

Public academic/full-stack cybersecurity project; not a third-party-certified production messenger.

Java Spring Boot Spring Security React
Conceptual diagram linking food, fitness, and media recommendation domains through feedback-aware ranking.

Recommendation Systems / Full-Stack

Context-Aware Cross-Domain Recommendation System

A local React and Node.js recommendation prototype connecting food, fitness, and media with contextual signals, feedback history, and explainable adaptive scoring.

Heuristic adaptive scoring across food, fitness, and media; no neural-model claim

Working local full-stack prototype with optional MongoDB and local JSON fallback storage.

JavaScript React Node.js Express