Ph.D. Researcher · IIT Delhi

Ritika
Singh

I build probabilistic models that reveal the hidden processes behind health inequalities — turning noisy, incomplete data into interpretable insights that matter.

4+
Published Papers
3
International Awards
5+
Years Research Exp.
LMIC
Research Focus
RS

Documents

CV and Research Summary

Public versions of my current CV and research summary are available below.

01 —

Research Focus

Learning interpretable latent structure from noisy, heterogeneous, and spatially evolving data — to understand and address unequal health and developmental outcomes.

My doctoral research develops probabilistic, spatial-temporal, and machine-learning models that infer unobserved processes — access, engagement, risk, developmental vulnerability — from large-scale observational data across low and middle-income countries.

A defining feature of my work is treating latent variable modeling as a tool for substantive inference, not merely dimensionality reduction. Observed outcomes are modeled as consequences of underlying processes shaped by social, structural, and contextual factors.

Going forward, I aim to extend this into deep latent dynamical models that infer meaningful states from irregular, multimodal data streams — preserving interpretability and uncertainty-awareness throughout.

02 —

Publications

2025

Bridging the Immunization Gap: Predictive Models for Zero-Dose and Vaccination Dropout in India

Ritika Singh, Mira Johri, Sumeet Agarwal
ACM COMPASS 2025 ACM ↗ Request PDF ↗
Full Paper
2024

Quantifying the Role of Maternal Recall in Estimates of Routine Immunisation Rates in India: A Large-Scale Sub-National Bayesian Modelling Study

Ritika Singh, Alexandre de Figueiredo, Sumeet Agarwal, Misha Mishra, Devyani Agarwal
ACM COMPASS 2024 ACM ↗ Request PDF ↗
Full Paper
2024

Predictive Modelling of Zero-Dose Children and Vaccination Dropout in India Reveals Common Drivers of Immunisation Shortfalls

Ritika Singh, E. Spandana, Mira Johri, Sumeet Agarwal
Gavi Zero-Dose Learning Week
Poster
2023

Exploring Multimorbidity and Patterns of Long-Term Conditions in England Using Open Prescription and Primary Care Data

Ritika Singh, Data Study Group Team
The Alan Turing Institute Report ↗
Data Study
2019

M.Tech Thesis

Ritika Singh · JIIT Noida
Master's Thesis · Data Analytics PDF ↗
Thesis
03 —

Projects

Five projects are listed below. Each card opens a dedicated page with explicit details on problem statement, motivation, logic, modeling, and mathematical approach.

Ongoing · Immunisation

Understanding Inference in Immunisation Attitudes

Multi-country study on how socioeconomic factors shape vaccine trust and behavior. Latent variable models decompose demand from access barriers across diverse national contexts.

IRT ModelsHierarchical BayesianR / StanSurvey Analysis
Open full case study ->
Completed · ECD

Early Childhood Development in Rural Uttar Pradesh

ML models identifying determinants of developmental variation in rural India, including active participation in contextual adaptation of ECDI survey instruments for village settings.

Random ForestXGBoostConstruct ValidityPython
Open full case study ->
Completed · Immunisation

Zero-Dose Prediction Using ML

Predictive models for early identification of zero-dose children across the immunisation cascade, explicitly separating model performance from substantive interpretation.

Cascade AnalysisSHAPRegion-Specific ModelsPython
Open full case study ->
Completed · Spatial

Geo-Spatial Modelling of Vaccine Coverage

Sub-national Bayesian spatial analysis identifying vaccination coldspots in India using SPDE via INLA, modeling spatial dependence, regional heterogeneity, and measurement uncertainty.

INLA / SPDEspGLMqGISR
Open full case study ->
Extension · Zero-Dose Pipeline

Insights into NN Across National and Regional Immunisation Outcomes

Extension of Zero-Dose modeling into a fresh retraining framework for ZD, MCV dropout, and DPT dropout with explicit national-vs-regional NN behavior, LR comparison, and deep interpretability analysis.

MLP / LRThreshold TuningPermutation AP-DropCross-Outcome Visuals
Open full case study ->
04 —

Experience

Aug 2021 – Present

Ph.D. Researcher & Teaching Assistant

IIT Delhi · School of AI

Doctoral research on latent variable modeling for health equity. TA for Advanced Machine Learning, Bayesian Modelling, and Machine Learning. TCS Research Scholar Fellow (2023–2027).

May – Jul 2025

Globalink Research Scholar

Université de Montréal · Canada

Mitacs Globalink Research Award. International research collaboration on immunisation modeling and health equity.

Aug 2025

Delegate — 30th AFS Youth Assembly

AstraZeneca Young Health Programme

Selected as a YHP Changemaker Scholar, representing global health research and advocacy.

Nov 2023

Workshop Participant

UN & SIPRI · Responsible AI for Peace and Security

International dialogue on responsible AI governance in peace and security contexts.

Mar 2023

Data Study Group

The Alan Turing Institute · London

Collaborative data science challenge on multimorbidity and long-term conditions in England using NHS open data.

Jan – Aug 2021

Assistant Professor – Artificial Intelligence

SRM Institute of Science and Technology

Taught undergraduate AI and data science courses.

Aug 2019 – Jan 2021

Solution Delivery Analyst

Deloitte USI · Risk and Financial Advisory

Risk and financial analytics in enterprise consulting, delivering data-driven solutions for large-scale clients.

Jan – Aug 2019

Data Science & Statistical Expert

Election Commission of India

Live streaming dashboards and statistical pipelines for the 2019 Lok Sabha General Election using ARIMA, LSTM, and Tableau.

Aug – Jan 2019

Data Science Research Associate

Reserve Bank of India · Strategic Research Unit

Research on Bhavantar Bhugtan Yojana and mobile banking adoption using statistical modeling.

05 —

Awards & Recognition

🏆

TCS Research Scholar Fellowship

2023 – 2027 · Competitive fellowship from Tata Consultancy Services for doctoral research excellence

🌐

Mitacs Globalink Research Award

2024 – 2025 · International research award for collaboration at Université de Montréal, Canada

🌱

AstraZeneca YHP Changemaker Scholar

2025 · Young Health Programme — delegate to the 30th AFS Youth Assembly

06 —

Certificates & Credentials

Professional certifications, training programmes, and credentials earned alongside doctoral research. Click any card to open the certificate.

📊
Data Science
Certificate of Completion
🤖
Machine Learning A–Z
Certificate of Completion
🧠
Deep Learning
Certificate of Completion
👁️
Computer Vision
Certificate of Completion
🔬
Complete Guide to TensorFlow
Certificate of Completion
🐍
Complete Python Bootcamp 2022
Certificate of Completion
💻
Python Programming
Certificate of Completion
📈
Tableau
Certificate of Completion
🕷️
Scrapy — Web Scraping
Certificate of Completion
🔐
Data Science & Cybersecurity Implementation
Certificate of Completion
🏢
SAP
Certificate of Completion
📄
Full Curriculum Vitae
Updated 2026 · PDF

Want the full picture?

Download my complete CV — publications, projects, teaching, and more.

Download CV (PDF) Research Statement
07 —

Skills & Tools

Statistical Methods

Bayesian InferenceINLA / SPDEItem Response TheoryLatent Variable ModelsspGLMARIMA / LSTMSHAP / XAIGradient Boosting

Languages & Libraries

PythonRStanPyMCscikit-learnpandas / numpySQLPostgreSQL

Tools & Platforms

qGISTableauGit / GitHubAndroid StudioMySQLSQLite

08 — Let's Connect

Open to
opportunities.

Actively exploring postdoctoral and research scientist positions in Bayesian machine learning, health data science, and computational social science.