AYANGA IMESHA KUMARI KALUPAHANA

COM3-02-17, SYSTEMS AND NETWORKING RESEARCH LAB, SCHOOL OF COMPUTING, NUS, SINGAPORE 119391

[ayangaim@comp.nus.edu.sg] , [My CV]

I am final year Computer Science Ph.D student at the National University of Singapore advised by Prof. Li-Shiuan Peh. At NUS, I initiated new research direction of leveraging sensor noise for privacy. Before joining NUS, I worked as Research Engineer in SYNERGEN Technology Labs, a USA-based startup from 2016-2019. I was graduated from the University of Moratuwa, Sri Lanka with BSc. Eng. (Hons) specialized in Electronics and Telecommunication Engineering in 2016.

My research involves improving the privacy and security of wearable devices and also data collected from wearable devices. I am also interested on Wearable computing/sensing, wearable energy harvesting and wearable power and latency optimization.

Publications

Journal Publications

SeRaNDiP - Leveraging Inherent Sensor Random Noise for Differential Privacy Preservation in Wearable Community Sensing Applications
Ayanga Kalupahana, Ananta Narayanan Balaji, Xiaokui Xiao and Li-Shiuan Peh
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 2023 (IMWUT/Ubicomp)
[Project Page], [Paper], [ACM UbiComp 2023 Full paper presentation slides], [ACM UbiComp 2023 poster], [ACM Ubicomp 2023 SeRaNDiP Video Teaser], [SeRaNDiP in 6mins]

Conference Publications

FPAA and FPGA Based Universal Sensor Node Design
Ayanga Kalupahana, Nisal Hemadasa, Nipun Wijerathne, Anuranga Ranasinghe and Ajith Pasqual
Proceedings of the 11th International Conference on Sensing Technology (ICST 2017), Sydney, Australia
[Paper], [Conference Presentation]

Presentation Award -Second Runner Up (Student Category)

Work Experience and Internships

Graduate Teaching Assistant -CP2107 Independent Introduction to CS Research (Odyssey)

@ School of Computing, NUS - May 2024 to Aug 2024
Module Instructor: Prof. Bimlesh WADHWA
Mentored two NUS Computer Science undergraduate research projects related to EEG based attention application developments and EEG based meditation application development

Graduate Teaching Assistant -CS4222/CS5222 Wireless Networking

@ School of Computing, NUS - Jan 2024 to May 2024
Module Instructor: Prof. Ambuj Varshney
Conducted tutorials and provided consultation for Final-year undergraduate and postgraduate students
Evaluated assignments and course projects of 164 enrolled students

Graduate Teaching Assistant -CS4222/CS5222 Wireless Networking

@ School of Computing, NUS - Jan 2023 to May 2023
Module Instructor: Prof. Ambuj Varshney
Conducted tutorials and provided consultation for Final year undergraduate and postgraduate students
Evaluated assignments and course projects of 150 enrolled students

Graduate Researcher

@ LSP Group, NUS -Aug 2019 to today
Advisors : Prof. Li-Shiuan Peh and Prof. Xiaokui Xiao
Evaluate Rastogi et al.s’ Distributed Differential Privacy algorithm’s performance and limitations on off-the-shelf smartwatches

Research Engineer @ Synergen Technology Labs LLC, USA

Headquarters in Dallas, Texas, USA, Innovation center in Sri Lanka - May 2016 to July 2019
Designed a 4-layer PCB (36mmx19mm) for a spine care wearable patch with inductive wireless charging circuit
Developed a single IMU-based smoke detection mechanism
Developed an algorithm for de-noising Ambulatory ECG by fusion with accelerometer data and activity detection for Synergen’s FDA approved Scio-Cardio ambulatory ECG monitor
Developed a respiration estimation algorithm for the PPG signal input taken from the infant’s ankle-worn wearable in patented Synergen Baby monitor which is available in the market as Hälsa Baby.
Developed a cry detection algorithm
Supervised undergraduate engineering students’ research related to wearable stress monitor and accelerometer-based smoke detector

Research & Development Engineering Intern

@ Integrated System Development (ISD) Ltd, UK (Headquarters in London, UK, Research & Development center in Sri Lanka) Now ISD is operated as Verox Labs Ltd - Nov 2014 to March 2015
Mentor: Mr. Harin De Silva, Managing/Technical Director
Assisted in developing their next version of the “Heated Glass Stage Device”, which is used to inject sperm into egg cells in-vitro fertilization process
Researched, experimented, and developed algorithms to provide even heat signature to the living cell
Designed a heated glass stage protection circuit

Education

Ph.D. Candidate in Computer Science - Jan 2020 to Now

National University of Singapore
Advisor : Prof. Li-Shiuan Peh

BSc. Eng. (Hons) specialized in Electronics and Telecommunication Engineering - 2011 to 2016

University of Moratuwa, Sri Lanka
FYP Advisor: Dr. Ajith Pasqual

Secondary Education

Devi Balika Vidyalaya, Colombo, Sri Lanka - 2002-2010

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