Visual Grounding
Modified a detection transformer with cross-attention to identify image objects from text prompts, reaching 36.9% mAP.
Project Website
Applied ML Researcher
I am an Applied Researcher at eBay working on language models for buyer-seller conversational systems. My work bridges applied research and production ML, spanning data pipelines, model architecture iteration, training and evaluation frameworks, and deployment.
Before eBay, I was an AI Research Engineer at VOAIGE, where I worked on perception for robotics applications, including promptable segmentation and 3D geometry estimation.
I completed my M.S. in Electrical and Computer Engineering at Carnegie Mellon University, and interned at NVIDIA on autonomous vehicle perception datasets and weakly supervised segmentation.
I am broadly interested in computer vision, 3D perception, robotics, and NLP.
Education
M.S. Electrical and Computer Engineering - Applied Study
B.Tech. Electrical Engineering, Minor in Computer Science
Skills
Experience
Evaluating large language models to improve buyer-seller chatbot interactions.
Improved promptable segmentation runtime by 10x, enabled object filtering through 3D geometry estimates, and led MMEngine pipeline development that reduced experimentation time by 66%.
Processed 550,000-image AV datasets with SQL and Python, developed ETL pipelines, and analyzed DiscoBox robustness under noisy bounding box supervision.
Built a ResNet-based CNN to reverse atmospheric distortion in telescope imagery and improve faint-source detection while preserving flux measurements.
Selected Projects
Modified a detection transformer with cross-attention to identify image objects from text prompts, reaching 36.9% mAP.
Project WebsiteImplemented prototypical networks in NumPy from scratch and reached 90.5% accuracy with a logistic-regression-based network.
PDFPublications and Patents
Alperen Degirmenci, Jiwoong Choi, Zhiding Yu, Ke Chen, Shubhranshu Singh, Yashar Asgarieh, Subhashree Radhakrishnan, James Skinner, and Jose Manuel Alvarez Lopez.
PatentT. Kim, J. Li, N. Madaan, S. Singh, and C. Joe-Wong.
NeurIPS BUGS PosterT. Kim, S. Singh, N. Madaan, and C. Joe-Wong.
PDFT. Kim, S. Singh, N. Madaan, and C. Joe-Wong.
ScienceDirectT. Kim, S. Singh, N. Madaan, and C. Joe-Wong.
A. U. Deshpande, A. N. Harish, S. Singh, V. Verma, and N. Khanna.
IEEE