Hans Tiwari

Data Scientist · Machine Learning · AI Systems

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Python Machine Learning LLMs PyTorch NLP Geospatial AWS SQL
Data Scientist @ SkenarioLabs Oy Espoo · 2023 — Present

Building predictive real-estate valuation models, climate & physical risk analytics, and geospatial intelligence systems in production.

Research Assistant @ Aalto University Espoo · 2023

Researched spatio-temporal video grounding, designing Transformer-based models and evaluating large-scale video benchmarks.

Data Scientist @ Pricen Helsinki · 2022 — 2023

Built automated analytics pipelines and pricing prediction models to support revenue optimization.

Software Engineer @ Quant Investment Firm San Francisco · 2021

Conducted statistical research and Python-based modeling on global macroeconomic and financial market data.

Associate Software Engineer / Python Developer @ Bajaj Finserv Health India · 2020 — 2021

Developed data pipelines, dashboards, APIs, and cloud-deployed systems, including speech-driven healthcare applications.

Summer Intern @ Nokia Solutions & Networks Chennai · 2019

Built a computer-vision-based Pick-To-Light system using OpenCV for industrial workflows.

Summer Research Intern @ IIT Madras Chennai · 2018

Explored deep learning fundamentals and built image classification models using CIFAR and MNIST datasets.

Projects

🎓 Spatio-Temporal Video Grounding — Master’s Thesis 🧠 Domain-Specific Knowledge Assistant (RAG) 📊 LLM-Powered Analytics Assistant 🤖 BERT-based Question Answering (SQuAD) 🎥 ViViT for Video Action Recognition

Publications

📄 Size-Modulated Deformable Attention — ICPR ’24 📄 Spatio-Temporal Video Grounding of Human Actions — CAIHU ’24 📄 Kids-Specific URL Classification using RCNN — ICCIDS ’19 📄 Bidirectional GRU Attention for URL Classification — IGI Global ’19 📄 Voice-Controlled Autonomous Vehicle — IJRTE ’19

Contact

📧 hans.tiwari@gmail.com
🔗 GitHub · LinkedIn