Nazreen Shah Ambalath (S A Nazreen) PhD student, IIIT Delhi B613, Intellicom Lab, RnD Block email: nazreens@iiitd.ac.in

About Me

I am a second year PhD student at IIIT, Delhi advised by Dr. Ranjitha Prasad from September 2021. I am interested in Federated Learning and my research area is to attain personalization in Federated Learning. I am also interested in Federated Optimization.

I was selected for the Prime Minister's Fellowship for Doctoral Research in July 2023.

I have prior research experiences in ISI, Kolkata and IDRBT, Hyderabad, where I worked on image processing and reversible data hiding problems. My M.Tech thesis 'Reversible Data Hiding in Color Images' was completed under the guidance of Dr Rajarshi Pal, IDRBT, Hyderabad.

I completed my 5-year integrated M.Tech in Computer Science from University of Hyderabad (2020).

[Curriculum Vitae] [Google Scholar] [Linkedin][GitHub][WANDB]

Publications

• Importance Sampling Based Federated Unsupervised Representation Learning
  Nazreen Shah, Prachi Goyal, Ranjitha Prasad

• Over-the-air Clustered Wireless Federated Learning
  Ayush Madhan-Sohini, Divin Dominic, Nazreen Shah, Ranjitha Prasad

• Robust Over-The-Air Federated Learning In Heterogeneous Networks
  Zubair Shaban, Nazreen Shah, Ranjitha Prasad

Arxiv Pre-prints

• Over-The-Air Clustered Wireless Federated Learning (Accepted at IEEE Globecom Workshop 2023)
  Ayush Madhan-Sohini, Divin Dominic, Nazreen Shah, Ranjitha Prasad

• On the Convergence of Continual Federated Learning Using Incrementally Aggregated Gradients (Accepted at AISTATS 2025)
  Satish Kumar Keshri, Nazreen Shah, Ranjitha Prasad