Dwijen Chawra

Dwijen Chawra

I'm a senior studying Computer Science at Purdue University. My interests lie in robotics, ML, and high performance computing.

What I'm up to

Currently working as a Robotics Engineer Intern at Labelbox Inc. in San Francisco, where I'm helping architect a robotics lab collecting data for foundation models.

Recently, I represented Purdue's MARS Lab in the WBCD Competition at ICRA 2025

Previously, I interned at Amazon Web Services (Q Business team), Arta Finance, and worked as an undergraduate researcher at the Zeitzer Circadian Research Lab at Stanford University.

Projects

Wave

GitHub | Aug 2022 - May 2023

Gesture interactions with a computer through user-trained hand gestures with only a webcam. Sub-second latency for action recognition, and scales to infinite gestures.

Drug Identification with NER Models

Project Page | GitHub | Aug 2022 - May 2023

Worked with Battelle Inc. to develop a NER model to identify drug name and usage from medical records, utilizing a BioBERT bi-directional LSTM model to achieve 94% accuracy on the test set.

Soundscape

GitHub | Jan 2023

Created an intelligent playlist generator that uses NLP and performs sentiment analysis on transcribed speech. Stored vectorized songs in CockroachDB's relational database and generated playlists based on user emotion.

Publications

A threshold by any other name: is five minutes of wake 'long' enough to degrade sleep quality?

Renske Lok, Dwijen Chawra, Jamie M Zeitzer

Oxford Sleep Nov 2023

The Impact of Missing Data and Imputation Methods on the Analysis of 24-Hour Activity Patterns

Renske Lok, Lara Weed, Dwijen Chawra, Joe Winer, Jamie Zeitzer

Sleep Volume 45 June 2022

Objective underpinnings of self-reported sleep quality in middle-aged and older adults

Renske Lok, Dwijen Chawra, Flora Hon, Michelle Ha, Katherine A. Kaplan, Jamie M. Zeitzer

Biological Psychology Volume 170 April 2022