👋🏼 Hello there, I’m Raja!

👨🏻‍💻 I am a Research Engineer at the CNRS, based at the CerCo in Toulouse, France.

🔬 I am passionate about Multimodal Representation Learning, NeuroAI, and AI/ML for healthcare. Committed to developing technologies that enhance lives.

📚 I’ve completed my Master’s Thesis from IIT Bombay at the junction of natural language processing (NLP), machine learning (ML), and computational social science.

Research Experience

Mental Disorder Identification through Linguistic Markers | Master’s Thesis, IIT Bombay

Guide: Prof. Pushpak Bhattacharyya, CFILT Lab

  • Proposed a unique method to convert social media text into time series data for post‑level analysis of mental disorders
  • Developed a novel framework for mental disorder identification via foundational deep learning models which surpasses the performance of BERT‑based approaches by 5% in the F1 score on mental conditions: Depression, Self‑harm, and Anorexia
  • Explored semantic overlaps among these disorders, underscoring the value of cross‑domain data in mental health research

Cognitively Inspired Hallucination Detection | Research Project, UT Austin & IIT Bombay

Guide: Prof. Abhijit Mishra & Prof. Pushpak Bhattacharyya

  • Curated eye‑tracking data with 500 instances for the task of hallucination detection and developed a BERT‑based framework
  • Proposed a novel attention bias framework inspired by human behavior for detecting hallucinated texts

Multimodal Mixup Contrastive Learning for Multimodal Classification | Research Project, Monash University & IIT Bombay

Guide: Prof. Kshitij Jadhav & Dr. Deval Mehta

  • Implemented a multimodal contrastive learning objective for image‑text classification using the extension of mixup strategy
  • Experimented using unimodality supervision, cross‑attention on diverse datasets (N24News, ROSMAP, BRCA, and Food‑101)

Professional Experience

I have professional experience working as an AI Student Researcher at Assert AI.
There, I deployed customized YOLOv4 models for surveillance tasks leveraging the Nvidia Jetson series GPU accelerators, generated tailored datasets and trained YOLOv4 models for diverse object detection and classification scenarios.