About

I have now co-founded a startup in the spatial reasoning space. More details coming soon!

I defended my PhD in the Computer Science Department at Carnegie Mellon University, where I was advised by Prof. Srinivasan Seshan and Prof. Anthony Rowe.

During my PhD, I worked on building a world-scale federated localization and mapping system called OpenFLAME. OpenFLAME was designed to enable the next generation of location-based applications, including large-scale robotics and mixed reality, and to bring us closer to the vision of the Spatial Web—a web in which data would be associated with and rendered against physical spaces.

I also worked with Netflix on designing a bitrate-ladder algorithm for 2D video streaming. Previously, I worked at Microsoft Research on building a large-scale data discovery framework and optimizing inter-datacenter networks.

Select Publications

Flame3D: Zero-shot Compositional Reasoning of 3D Scenes with Agentic Language Models

arXiv, 2026

Sagar Bharadwaj, Ziyong Ma, Anurag Ghosh, Srinivasan Seshan, Anthony Rowe

Paper Website

OpenFLAME: A Federated Spatial Naming Infrastructure

NINeS, 2026

Sagar Bharadwaj, Ziyong Ma, Ivan Liang, Michael Farb, Anthony Rowe Srinivasan Seshan

Paper Website GitHub

OpenFLAME: Federated Visual Positioning System to Enable Large-Scale AR

ISMAR, 2025

Sagar Bharadwaj, Harrison Williams, Luke Wang, Michael Liang, Tao Jin, Srinivasan Seshan, Anthony Rowe

Paper Video GitHub

Uniting the World by Dividing it: Federated Maps to Enable Spatial Applications

HotOS, 2025

Sagar Bharadwaj, Anthony Rowe, Srinivasan Seshan

Paper Video

Renderfusion: Balancing local and remote rendering for interactive 3D scenes

ISMAR, 2023

Edward Lu, Sagar Bharadwaj, Mallesham Dasari, Connor Smith, Srinivasan Seshan, Anthony Rowe

Paper Video GitHub

Optimizing Network Provisioning through Cooperation

NSDI, 2022

Sagar Bharadwaj*, Harsha Sharma*, Parth Thakkar*, Ranjita Bhagwan, Venkata N Padmanabhan, Yogesh Bansal, Vijay Kumar, Kathleen Voelbel | *Equal contribution

Paper Video

Discovering related data at scale

VLDB, 2021

Sagar Bharadwaj, Praveen Gupta, Ranjita Bhagwan, Saikat Guha

Paper

See all publications