Mithin Sagar
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Portrait of Mithin Sagar

Hey, I’m

Mithin Sagar — AI / ML Engineer

Building intelligent systems that solve real-world problems.

I work with machine learning, deep learning and generative AI to turn data into useful, reliable products — systems that explain their reasoning instead of asking to be trusted.

  • #01Machine Learning
  • #02Deep Learning
  • #03Generative AI
  • #04AI Engineering
01Introduction

I’m a Computer Science undergraduate at VIT Chennai specialising in AI and machine learning. I build systems that put the evidence in front of you instead of asking to be trusted — a weld detector you can interrogate, a recovery pipeline graded against ground truth, a matcher whose score you can reproduce by hand. 

DataIdeasModelsImpactDataIdeasModelsImpactDataIdeasModelsImpactDataIdeasModelsImpact
02Selected work

Systems, notdemos.

Nine repositories, each one shipped with the measurement that justifies its claims. Three of them are below; the rest are one click away.
FlashForensics AI interface
01Agentic AI · Machine Learning

FlashForensics AI

“PhotoRec tells you it found 9,000 files. This tells you which 40 are your photos, and why.”

100%recall on planted files0false positives69formats in the index
Signal interface
02Agentic AI · Full-Stack

Signal

“Most tools hand you a score. This one shows its work.”

143canonical skills399surface forms50tests passing
WeldSight interface
03Computer Vision · Machine Learning

WeldSight

“A detector that only prints 'defect: 0.81' asks you to trust it. This one is built the other way round.”

77.3%val mAP@0.56built-in test images0.05confidence floor sent
03What I do

Four disciplines,one habit.

Different tools, same rule: if a number cannot be reproduced from the repository, it does not go in the README.
01

Machine Learning

Classical models trained, cross-validated and calibrated until the reported confidence matches what actually happens. Seven classifiers benchmarked in one command; the best one persisted automatically.

  • scikit-learn
  • pandas
  • Calibration
02

Deep Learning & Vision

Detection pipelines owned end to end — dataset curation, labelling, GPU training, then the honest part: diagnosing the gap between a 99% training score and a 74% held-out one.

  • PyTorch
  • YOLOv8
  • OpenCV
03

Generative AI & Agents

Multi-agent graphs where each stage owns one responsibility, retrieval that cites what it found, and language models kept strictly downstream of the number they are describing.

  • LangGraph
  • RAG
  • FAISS
04

AI Engineering

The part that makes a model a product: typed APIs, Docker images that carry their own weights, CI across a Python version matrix, and tests that fail when a claim stops being true.

  • FastAPI
  • Docker
  • GitHub Actions
04Track record

Where ithappened.

  1. 2026
    Paper presented — Automated AWS Resource CleanupICANDIT 2026, INTI International University
  2. 2025 — 2026
    Student Welfare Outreach HeadTechnoVIT & Vibrance, VIT Chennai
  3. May 2025 — Jun 2025
    Machine Learning Intern — Deep Learning & Computer VisionIndira Gandhi Centre for Atomic Research (IGCAR)
  4. 2024 — 2025
    Head of Visual MediaVOICE-IT — VIT Chennai’s radio station club
05Research
ICANDIT 2026

Automated AWS Resource Cleanup for Optimization of Cost and Security

Idle cloud resources sit unused and forgotten, quietly driving up cost and widening the attack surface. This work presents an event-driven Boto3 system that scans EC2, EBS, S3, IAM and RDS for waste, then recla…

INTI International University, MalaysiaPresented · publication pending
Read the research
06Off the clock

Light, beforeit was data.

I shoot live events and whatever the street offers. Concert lighting is the hardest exposure problem I know that has nothing to do with code — which is exactly why it’s a good break from it.
Beam
BeamLive · VIT Chennai
The room
The roomLive · VIT Chennai
Front line
Front lineLive · VIT Chennai
Set
SetLive · VIT Chennai
Pyro
PyroLive · VIT Chennai
Encore
EncoreLive · VIT Chennai
07Currently
Updated September 2026
Building01

WeldSight and FlashForensics AI

Hardening both for real use — baking model weights into the Docker image so a cold start can’t fail on a fetch, and pushing the recovery pipeline’s test coverage into the statistical checks that decide a verdict.

  • YOLOv8
  • LangGraph
  • FastAPI
  • Docker
Learning02

Agent orchestration that survives production

Multi-agent graphs are easy to demo and hard to keep honest. I’m working through state, retries and partial failure — what an agent does when the stage before it returned something almost right.

  • LangGraph
  • Evaluation
  • Tracing
Exploring03

Calibration and adversarial explainability

Following the thread from MediXplain and the XAI drift work: how far can an explanation be pushed before it stops describing the model, and can the confidence number be trusted at the same time.

  • SHAP
  • LIME
  • Calibration
  • Robustness
Shooting04

Stage light and street light

Still carrying a camera. Concert lighting is the hardest exposure problem I know of that has nothing to do with code, which is exactly why it’s a good break from it.

  • Sony
  • Live events
  • Street
08Contact

Let’s build somethingmeaningful.

Open to internships and AI/ML roles, research collaborations, or a conversation about something you are trying to make work. I reply to everything.