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Theoretical & Applied Systems

Research, Notes & Progress

Documenting mathematical derivations, physical hardware experiments, and computational insights as they evolve.

Theoretical knowledge only settles when tested against physical silicon and real-world forces.

Chetraj Jaishi — Research Archive

Chronological Journey

2024 – 2027
2024
Animation, video editing and first experiments with web development.
Discovered computational thinking through motion design, timing curves, and creative coding with HTML/CSS.
2025
Programming, Linux and a deeper dive into how computers actually work.
Switched fully to Linux, mastered terminal workflows, bash scripting, and started building robust software systems.
2026
Python, C++, electronics, robotics, aerospace and research.
Focusing on low-level systems, aerodynamic simulation, autonomous robotics, and applied research.
2027
Computer Engineering — the next chapter.
Formal university studies in Computer Engineering, hardware-software co-design, and embedded robotics.

Active Study Benchmarks

Tracking
5%
Korean / TOPIK
Daily study · reading · listening
20%
Python + linux
Build · commit · understand
2%
C++ + Robotics
Simulation · hardware · Arduino
70%
Portfolio
Design · build · deploy

Published Research Notes

Deep Learning & Neural NetworksSep 2026 · 7 min read

Residual Learning — More Doesn’t Always Mean Good

A personal research note taken from the famous research paper "Deep Residual Learning for Image Recognition" (He et al., the ResNet paper) — exploring why deeper networks suffer from the degradation problem and how residual shortcut connections solved it.

📄Research Note · Source: "Deep Residual Learning for Image Recognition" (He et al., the ResNet paper)
ResNetDeep LearningPaper NotesResidual LearningOptimization
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Computer Vision & Real-Time SystemsAug 2026 · 8 min read

#2 You Only Look Once (YOLO) — Real-Time Object Detection

A personal research note on the seminal YOLO paper (Redmon et al.) — reframing object detection from complex multi-stage pipelines into a single unified regression problem running at 45–155 FPS.

📄Research Note · Source: "You Only Look Once: Unified, Real-Time Object Detection" (Redmon et al., 2016)
YOLOObject DetectionPaper NotesComputer VisionReal-Time Inference
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Computer Vision & AerospaceAug 2026 · 8 min read

UAV Disaster Mapping

Rapid post-disaster reconnaissance using aerial photogrammetry and semantic segmentation in mountainous topography.

UAVPhotogrammetryComputer VisionDisaster Relief
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Computer SystemsJul 2026 · 6 min read

From Vacuum Tubes to Modern Chips

How does a computer actually compute? Tracing computing history from 1804 punch cards to 1940s vacuum triodes, relays, and early binary switching logic.

Computer ArchitectureVacuum TubesHardware HistoryBinary Logic
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Computer VisionJun 2026 · 5 min read

Computer Vision Experiments

Hands-on experimentation with image processing pipelines, feature descriptors, camera calibrations, and optical flow.

OpenCVPythonOptical FlowCalibration
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