Ananta Narayanan Balaji

COM3-02-17, Systems and Networking Research Lab 1, School of Computing, NUS, Singapore 119391

I'm a final year Ph.D. student at National University of Singapore advised by Professor Li-Shiuan Peh. Before joining NUS, I completed my bachelors and masters degrees from Thiagarajar College of Engineering, India and National University of Singapore respectively.

My research involves (1) building easily integrable next-generation Wearable sensing techniques for applications spanning from non-invasive physiological/health sensing to human computer interaction and (2) developing faster AI-inference enabled body-worn tactile wearable interaction systems. My others interests are Wireless health sensing techniques, Low power AR/VR sensing and Mobile/Wearable computing.

Curriculum Vitæ


pH Watch - Leveraging Pulse Oximeters in Existing Wearables for Reusable, Real-time Monitoring of pH in Sweat
Health sensing Sweat sensing Smartwatches
Ananta Narayanan Balaji*, Chen Yuan*, Bo Wang, Li-Shiuan Peh, Huilin Shao
International Conference on Mobile Systems, Applications, and Services (MobiSys) 2019

AI-on-skin: Enabling On-body AI Inference for Wearable Artificial Skin Interfaces
Ananta Narayanan Balaji and Li-Shiuan Peh
CHI EA '21: Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems, May 2021
[Press: [] ]

AI-on-skin: Towards Enabling Fast and Scalable On-body AI Inference for Wearable On-Skin Interfaces
Ananta Narayanan Balaji and Li-Shiuan Peh
Proc. ACM Hum.-Comput. Interact. 6, EICS, Article 187 (June 2023) (To appear)

RetroSphere: Self-Contained Passive 3D Controller Tracking for Augmented Reality
Ananta Narayanan Balaji, Clayton Kimber, David Li, Shengzhi Wu, Ruofei Du and David Kim
Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 6, December 2022 (ACM IMWUT/Ubicomp'23)

EarSet: A Multi-Modal Dataset for Studying the Impact of Head and Facial Movements on In-Ear PPG Signals
Nature Scientific Data 2023 (To Appear)

SeRaNDiP - Leveraging Inherent Sensor Random Noise for Differential Privacy Preservation in Wearable Community Sensing Applications
Ayanga Imesha Kalupahana, Ananta Narayanan Balaji, Xiaokui Xiao and Li-shiuan Peh
Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 7, May 2023 (ACM IMWUT/Ubicomp'23)

1.7pJ/SOP Neuromorphic Processor with Integrated Partial Sum Routers for In-Network Computing
IEEE International Symposium on Circuits and Systems, ISCAS 2023


Meta Reality Labs, Redmond

Low power and minimal calibration solution for in-ear sensing in hearables.

May 2022 - Sep 2022
Nokia Bell Labs, Cambridge

Exploration into in-ear PPG signals for robust vital sign sensing with future hearables and how blood pressure sensing can be achieved in future hearables.

Sep 2021 - Dec 2021
Google, San Francisco

Low power and Low compute interaction input methods/techniques for future Augmented Reality

March 2020 - Jun 2020
Portcast, Singapore

Backend development for predicting routes and arrival times in Marine logistics

January 2019 - Jun 2019
Temasek automation and control labs @ NUS, Singapore

Noise Filtering and UAV tracking with neuromorphic cameras (ATIS camera)

April 2016 - Jun 2016
Panasonic R&D Center Singapore

Deep Learning based sentence classification for chatbots

Dec 2015 - Mar 2016
TCS Innovation Labs, Chennai

Devlopment of a Natural Language based question answering system

Dec 2015 - Mar 2016

Work Experience

Works Applications (also AI works), Singapore

Automatic form filling and table identification for payment invoices, sales spreadsheets, resume etc.

Dec 2015 - Mar 2016

Academic Service


Paper Reviewer: ACM IMWUT


Paper Reviewer: ACM IMWUT, CHI, TEI, DIS, Ubicomp/ISWC, EICS


Paper Reviewer: ACM IMWUT, CSCW, Transactions on Computers(TC), CHI, TEI, Ubicomp/ISWC, MobileHCI


Paper Reviewer: ACM IMWUT, CHI, TEI, DIS, MobileHCI, World Haptics Symposium, ISMAR

Programme Committee Member: EICS 2023 Late breaking work, Mobisys 2023 Atrifcat evaluation


National University of Singapore

Ph.D. in Electrical and Computer Engineering
January 2018 - Present

National University of Singapore

M.Sc in Electrical and Computer Engineering
Aug 2015 - May 2016

Thiagarajar College of Engineering, Madurai

Bachelors in Electronics and Communication Engineering
Aug 2011 - May 2015