Clinical Readmission Risk Modeling
A leakage-safe 30-day readmission pipeline with patient-disjoint cohorts, calibration, missingness analysis, and drift checks.
Held-out test: 0.661 ROC-AUC, 0.175 PR-AUC, and 0.077 Brier score on 10,822 encounters.Yogesh Kuchimanchi · Data Scientist
I got into data by building PCs.
I’m Yogesh, a data science graduate student at RIT. Collecting parts got me interested in the numbers behind a decision. These days, that curiosity takes me into machine learning, language, and how things change over time.
A little about me
It started with PC parts.
I like building PCs. Collecting parts meant comparing specs, prices, and performance. Somewhere along the way, I got as interested in those comparisons as I was in the build.
That interest brought me to data science. At RIT, I’ve worked on readmission models, news classification, and research on women’s safety in India. The subject changes, but I still want to understand what the numbers say and what I can build with them.
Compare like with like.
A benchmark needs context. In my readmission project, I keep patients separate across splits and check how well predicted risks match outcomes.
Make the information usable.
NewsSnap turns a news classifier into an application where someone can inspect predictions. The training pipeline, API, and interface are all part of the project.
Check again later.
A model’s inputs can change after training. DriftLab lets me explore what happens to performance and monitoring alerts when they do.
Follow a conversation.
My capstone looks at how discussions about women’s safety change after an incident and what people return to months or years later.
One question, at different moments
How discourse changes over time.
These windows are measured from the incident, not a verdict. Choose one to explore the research question.
The crossroads
I want to keep doing both.
I like investigating a question and building something from the answer. As I finish my master’s, I’m looking for work that gives me room to do both.
Featured projects
Selected projects.
Source code, evaluation results, and demos for four projects.
Explore all GitHub projectsResults
Project dashboards
Inspect the available results, then open the demo or source.
Readmission risk
Existing portfolio results30-day readmission modeling with patient-disjoint splits and probability calibration.
- Held-out encounters
- 10,822
- ROC-AUC
- 0.661
- PR-AUC
- 0.175
- Brier score ↓
- 0.077
Held-out evaluation
Scale: 0–1. Higher AUC is better; lower Brier is better. These measure different properties and should not be ranked against each other. Prediction-level data is needed for ROC and calibration curves.
A nod to where it started
Put the parts together.
A small interactive build, with each part representing a step in an ML project.
0 / 4 connected
DATA
FLOW
FLOW
POWER
Assembly mode
Select a component, then fit it into the matching slot.
Installed applications
Complete the build to unlock the demos.
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Application lockedInstall all four components
×02
Application lockedInstall all four components
×03
Application lockedInstall all four components
×04
Application lockedInstall all four components
×NewsSnap: Transformer News Classification System
A four-class AG News system with a DistilBERT training pipeline, FastAPI service, React dashboard, and explicit inference modes.
Held-out evaluation: 0.870 accuracy, 0.869 macro-F1, and 0.827 MCC on 12,000 articles.Model Behavior Under Distribution Shift
A deterministic simulator for performance decay, class-prior shift, PSI, approximate KS, and configurable monitoring alerts.
Verified mixed-shift run: ROC-AUC fell from 0.758 to 0.372; max PSI reached 0.608; three alerts fired.Women-Safety Public Discourse Research
An interactive research dashboard covering 351,501 Reddit and YouTube comments across 16 women-safety cases in India.
Paper accepted at ASONAM 2026. The dashboard separates submitted-paper findings from later model audits.The full collection
All GitHub Projects.
Search my public repositories by name or language. This list updates from GitHub.
46 of 46 repositories · Most recently updated first · Refreshing from GitHub…
rag evaluation deployment api
Deployable FastAPI RAG evaluation API with source citations, vector retrieval, Docker, and reproducible metrics.
Project overviewai engineering lab
Inference cost planning, PyTorch classification, document retrieval, and LLM evaluation tools.
Project overviewNewsSnap
Full-stack news aggregator with DistilBERT summarization, React dashboard, CI/CD pipeline, and Docker deployment
Project overviewreadmission risk audit
Explore the source code and project files on GitHub.
Project overviewnyc 311 service monitor
Explore the source code and project files on GitHub.
Project overviewproduct analytics experimentation lab
Product analytics and A/B testing project with Python, SQL, Streamlit, and reproducible metrics.
Project overviewdriftlab model monitoring simulator
Explore the source code and project files on GitHub.
Project overviewself healing pipeline
Bounded self-healing data pipeline with LangGraph, strict contracts, isolated repair, durable recovery, and an evidence-based technical report.
Project overviewwomens safety discourse dashboard
Explore the source code and project files on GitHub.
Project overviewZinga18018
Explore the source code and project files on GitHub.
Project overviewportfolio website
A modern, interactive portfolio website built with Next.js, TypeScript, and Tailwind CSS
Project overviewDataGuard AI
FixMyData is a smart AI-powered application designed to automatically detect and explain data quality issues in CSV files including missing values, outliers, duplicate entries, type mismatches, and more.
Project overviewML Portfolio Projects
Explore the source code and project files on GitHub.
Project overviewrag document brain
Retrieval-augmented generation pipeline with sentence-transformer embeddings, ChromaDB vector search, and TinyLlama synthesis
Project overviewai code reviewer
FastAPI code review server powered by TinyLlama-1.1B with streaming SSE, severity classification, and KV-cache optimization
Project overviewimage captioner
Image-to-text generation using ViT encoder and GPT-2 decoder with beam search, served via FastAPI
Project overviewsentiment engine
Real-time sentiment analysis API with DistilBERT, batch processing, and trend visualization via FastAPI and Streamlit
Project overviewmulti agent orchestrator
Multi-agent LLM framework with planner, domain experts, and synthesizer using chain-of-thought reasoning
Project overviewcredit card default prediction
A machine learning pipeline to predict credit card default, exposed as a RESTful API using FastAPI.
Project overviewrestaurant analytics llm
AI-powered restaurant analytics dashboard with natural language SQL queries. Built with Streamlit, SQLite, and LLM integration for intuitive data exploration and insights.
Project overviewML Model Monitoring and Data Drift Detection
Real-time model monitoring dashboard with KS test, PSI, and Jensen-Shannon divergence for data drift detection
Project overviewNeural Style Transfer and Generative Art Lab
Neural style transfer with VGG19 and procedural generative art including fractals, flow fields, and wave interference
Project overviewKnowledge Graph Construction and Reasoning Engine
NER-driven knowledge graph construction with interactive PyVis visualization and community detection
Project overviewTime Series Forecasting with Transformer Architectures
Multi-model time series benchmarking with ARIMA, Holt-Winters, and automated feature engineering
Project overviewMultimodal Anomaly Detection with Synthetic Augmentation
Ensemble anomaly detection with Isolation Forest, LOF, DBSCAN, and synthetic data augmentation for imbalanced datasets
Project overviewIpynb Project Snippets
Explore the source code and project files on GitHub.
Project overviewSymptomAid AI
Professional AI-powered symptom analysis tool using Ollama and Streamlit. Provides structured medical insights with comprehensive safety disclaimers for educational purposes.
Project overviewstock sentiment dashboard
Real-time dashboard to track public sentiment around stock tickers and compare it with actual price trends using NLP and Yahoo Finance data.
Project overviewMetalVision AI
Advanced Metal Surface Defect Detection System using PyTorch with CNN, Attention Mechanisms, Ensemble Learning, SMOTE, and Cross-Validation
Project overviewHecs Refactoring
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Project overviewJob Hustles
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Project overviewimdb sentiment analysis deep learning
🎬 Advanced Deep Learning for IMDB Movie Review Sentiment Analysis - Achieving 90%+ accuracy with LSTM, BiLSTM, CNN, and Hybrid models
Project overviewWispr Clone
Explore the source code and project files on GitHub.
Project overviewNeuroCanvas
🎨 An AI-powered creative platform that generates art, analyzes emotions, and creates narratives through an intuitive web interface. Built with React, Flask, and multiple AI APIs.
Project overviewProject Aegis
Explore the source code and project files on GitHub.
Project overviewNeuroCanvas AI Art Generator
🧠🎨 AI-Powered Emotional Art Generation Platform - Transform emotions into stunning neuromorphic art through advanced multimodal AI analysis with contextual memory and narrative generation
Project overviewtime chronicles ai
An immersive AI-powered historical storytelling web application that transports users through different eras with multimodal narratives, user authentication, and interactive features.
Project overviewai slide deck generator
AI-Powered Slide Deck Generator - Create professional presentations from text using Google Gemini AI with multiple styles, charts, and speaker notes
Project overviewecho muse therapeutic storytelling
🎭 Echo-Muse: AI-Powered Therapeutic Storytelling Companion - Personalized healing through AI-generated stories and ambient soundscapes
Project overviewsonic symbiosis
AI-powered platform that generates therapeutic soundscapes from plant bioacoustic data
Project overviewmycelial memories
An AI-powered exploration of emotional connections through historical letters, visualized as living fungal networks
Project overviewPython Script
Python Script to check file duplicacies
Project overviewollama image recognition tool
A Flask web application for image recognition using Ollama and a multimodal model.
Project overviewml iris data analysis
Machine Learning project for ml-iris-data-analysis
Project overviewml digits exploration
Machine Learning project for ml-digits-exploration
Project overviewcustomer churn prediction
Chrun Based Prediction
Project overviewExperience
Where I’ve worked.
Graduate Researcher, Data Science
Rochester Institute of Technology
- Built Python and Pandas pipelines to analyze 351,501 Reddit and YouTube comments across 16 women-safety cases in India.
- Applied Mann–Whitney U, chi-square, and G-tests; fine-tuned Qwen3.5-9B with LoRA and evaluated 3,000 held-out examples.
- Authored a paper accepted at ASONAM 2026 and documented model limitations through high-confidence error review.
GCCIS Technical Assistant
Rochester Institute of Technology
- Support 200+ Windows and Linux lab systems, troubleshoot access and software issues, and maintain Excel/VBA reports.
Research Assistant, Data Science
Rochester Institute of Technology
- Refactored Pandas and NumPy scripts and validated PostgreSQL and Excel data for accurate weekly research reporting.
Education
Education.
M.S. in Data Science
Rochester Institute of Technology · Rochester, NY
Machine Learning, Deep Learning, Cloud Computing, Big Data AnalyticsPostgraduate Program in Data Science
Vellore Institute of Technology · India
B.C.A. in Computer Applications
New Shores International College · India
Skills
Tools I use.
Languages, modeling libraries, databases, and tools used in my projects.
Languages
Python · SQL · R · Java
Machine Learning & NLP
PyTorch · scikit-learn · CatBoost · XGBoost · Transformers · LoRA · DistilBERT · FT-Transformer
Statistics & Evaluation
A/B testing · Mann–Whitney U · Chi-square · G-test · ROC-AUC · PR-AUC · Calibration · PSI / KS / JS
Data & Databases
Pandas · NumPy · SciPy · Spark · PostgreSQL · SQLite · Window functions
ML Engineering
FastAPI · Streamlit · React · Docker · GitHub Actions · Automated testing · Git · Excel / VBA
Contact
Get in touch.
I’m looking for data science and ML engineering roles. Email me about a role, a project, or a research collaboration.