Publications

2023

RECA: A Multi-Task Deep Reinforcement Learning-Based Recommender System for Co-Optimizing Energy, Comfort and Air Quality in Commercial Buildings
RECA: A Multi-Task Deep Reinforcement Learning-Based Recommender System for Co-Optimizing Energy, Comfort and Air Quality in Commercial Buildings
Stephen Xia, Peter Wei, Yanchen Liu, Andrew Sonta, Xiaofan Jiang
Proceedings of the 10th ACM International Conference on Systems for Energy-Efficient Buildings, Cities, and Transportation   ·   15 Nov 2023   ·   doi:10.1145/3600100.3623735
Anemoi: A Low-cost Sensorless Indoor Drone System for Automatic Mapping of 3D Airflow Fields
Anemoi: A Low-cost Sensorless Indoor Drone System for Automatic Mapping of 3D Airflow Fields
Stephen Xia, Minghui Zhao, Charuvahan Adhivarahan, Kaiyuan Hou, Yuyang Chen, Jingping Nie, Eugene Wu, Karthik Dantu, Xiaofan Jiang
Proceedings of the 29th Annual International Conference on Mobile Computing and Networking   ·   02 Oct 2023   ·   doi:10.1145/3570361.3613292
A Data-Driven and Human-Centric EV Charging Recommendation System at City-Scale
A Data-Driven and Human-Centric EV Charging Recommendation System at City-Scale
Jingping Nie, Stephen Xia, Yanchen Liu, Shengxuan Ding, Lanxiang Hu, Minghui Zhao, Yuang Fan, Mohamed Abdel-Aty, Matthias Preindl, Xiaofan Jiang
Proceedings of the 14th ACM International Conference on Future Energy Systems   ·   16 Jun 2023   ·   doi:10.1145/3575813.3597350
LegoSENSE: An Open and Modular Sensing Platform for Rapidly-Deployable IoT Applications
LegoSENSE: An Open and Modular Sensing Platform for Rapidly-Deployable IoT Applications
Minghui Zhao, Stephen Xia, Jingping Nie, Kaiyuan Hou, Avik Dhupar, Xiaofan Jiang
Proceedings of the 8th ACM/IEEE Conference on Internet of Things Design and Implementation   ·   09 May 2023   ·   doi:10.1145/3576842.3582369
CaNRun: Non-Contact, Acoustic-based Cadence Estimation on Treadmills using Smartphones
CaNRun: Non-Contact, Acoustic-based Cadence Estimation on Treadmills using Smartphones
Ziyi Xuan, Ming Liu, Jingping Nie, Minghui Zhao, Stephen Xia, Xiaofan Jiang
Proceedings of Cyber-Physical Systems and Internet of Things Week 2023   ·   09 May 2023   ·   doi:10.1145/3576914.3589561
ARSteth: Enabling Home Self-Screening with AR-Assisted Intelligent Stethoscopes
ARSteth: Enabling Home Self-Screening with AR-Assisted Intelligent Stethoscopes
Kaiyuan Hou, Stephen Xia, Emily Bejerano, Junyi Wu, Xiaofan Jiang
The 22nd International Conference on Information Processing in Sensor Networks   ·   09 May 2023   ·   doi:10.1145/3583120.3586962

2022

AI Therapist for Daily Functioning Assessment and Intervention Using Smart Home Devices
AI Therapist for Daily Functioning Assessment and Intervention Using Smart Home Devices
Jingping Nie, Minghui Zhao, Stephen Xia, Xinghua Sun, Hanya Shao, Yuang Fan, Matthias Preindl, Xiaofan Jiang
Proceedings of the 20th ACM Conference on Embedded Networked Sensor Systems   ·   06 Nov 2022   ·   doi:10.1145/3560905.3568074
AI Stethoscope for Home Self-Diagnosis with AR Guidance
AI Stethoscope for Home Self-Diagnosis with AR Guidance
Kaiyuan Hou, Stephen Xia, Junyi Wu, Minghui Zhao, Emily Bejerano, Xiaofan Jiang
Proceedings of the 20th ACM Conference on Embedded Networked Sensor Systems   ·   06 Nov 2022   ·   doi:10.1145/3560905.3568082
aiMSE: Toward an AI-Based Online Mental Status Examination
aiMSE: Toward an AI-Based Online Mental Status Examination
Yanchen Liu, Stephen Xia, Jingping Nie, Peter Wei, Zhan Shu, Jeffrey Andrew Chang, Xiaofan Jiang
IEEE Pervasive Computing   ·   01 Oct 2022   ·   doi:10.1109/MPRV.2022.3172419
Conversational AI Therapist for Daily Function Screening in Home Environments
Conversational AI Therapist for Daily Function Screening in Home Environments
Jingping Nie, Hanya Shao, Minghui Zhao, Stephen Xia, Matthias Preindl, Xiaofan Jiang
Proceedings of the 1st ACM International Workshop on Intelligent Acoustic Systems and Applications   ·   27 Jun 2022   ·   doi:10.1145/3539490.3539603
BuMA: Non-Intrusive Breathing Detection using Microphone Array
BuMA: Non-Intrusive Breathing Detection using Microphone Array
Kaiyuan Hou, Stephen Xia, Xiaofan Jiang
Proceedings of the 1st ACM International Workshop on Intelligent Acoustic Systems and Applications   ·   27 Jun 2022   ·   doi:10.1145/3539490.3539598
A sensorless drone-based system for mapping indoor 3D airflow gradients
A sensorless drone-based system for mapping indoor 3D airflow gradients
Yanchen Liu, Minghui Zhao, Stephen Xia, Eugene Wu, Xiaofan Jiang
Proceedings of the 20th Annual International Conference on Mobile Systems, Applications and Services   ·   27 Jun 2022   ·   doi:10.1145/3498361.3538671
A modular and reconfigurable sensing and actuation platform for smarter environments and drones
A modular and reconfigurable sensing and actuation platform for smarter environments and drones
Minghui Zhao, Yanchen Liu, Avik Dhupar, Kaiyuan Hou, Stephen Xia, Xiaofan Jiang
Proceedings of the 20th Annual International Conference on Mobile Systems, Applications and Services   ·   27 Jun 2022   ·   doi:10.1145/3498361.3538667
SoFIT: Self-Orienting Camera Network for Floor Mapping and Indoor Tracking
SoFIT: Self-Orienting Camera Network for Floor Mapping and Indoor Tracking
Yanchen Liu, Jingping Nie, Stephen Xia, Jiajing Sun, Peter Wei, Xiaofan Jiang
2022 18th International Conference on Distributed Computing in Sensor Systems (DCOSS)   ·   01 May 2022   ·   doi:10.1109/DCOSS54816.2022.00029
AvA: An Adaptive Audio Filtering Architecture for Enhancing Mobile, Embedded, and Cyber-Physical Systems
AvA: An Adaptive Audio Filtering Architecture for Enhancing Mobile, Embedded, and Cyber-Physical Systems
Stephen Xia, Xiaofan Jiang
2022 21st ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN)   ·   01 May 2022   ·   doi:10.1109/IPSN54338.2022.00017
A Low-Cost In-situ System for Continuous Multi-Person Fever Screening
A Low-Cost In-situ System for Continuous Multi-Person Fever Screening
Kaiyuan Hou, Yanchen Liu, Peter Wei, Chenye Yang, Hengjiu Kang, Stephen Xia, Teresa Spada, Andrew Rundle, Xiaofan Jiang
2022 21st ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN)   ·   01 May 2022   ·   doi:10.1109/IPSN54338.2022.00009
Deep Learning in Human Activity Recognition with Wearable Sensors: A Review on Advances
Deep Learning in Human Activity Recognition with Wearable Sensors: A Review on Advances
Shibo Zhang, Yaxuan Li, Shen Zhang, Farzad Shahabi, Stephen Xia, Yu Deng, Nabil Alshurafa
Sensors   ·   14 Feb 2022   ·   doi:10.3390/s22041476

2021

A Drone-based System for Intelligent and Autonomous Homes
A Drone-based System for Intelligent and Autonomous Homes
Stephen Xia, Rishikanth Chandrasekaran, Yanchen Liu, Chenye Yang, Tajana Simunic Rosing, Xiaofan Jiang
Proceedings of the 19th ACM Conference on Embedded Networked Sensor Systems   ·   15 Nov 2021   ·   doi:10.1145/3485730.3492881
SPIDERS+: A light-weight, wireless, and low-cost glasses-based wearable platform for emotion sensing and bio-signal acquisition
SPIDERS+: A light-weight, wireless, and low-cost glasses-based wearable platform for emotion sensing and bio-signal acquisition
Jingping Nie, Yanchen Liu, Yigong Hu, Yuanyuting Wang, Stephen Xia, Matthias Preindl, Xiaofan Jiang
Pervasive and Mobile Computing   ·   01 Aug 2021   ·   doi:10.1016/j.pmcj.2021.101424
Improving Acoustic Detection and Classification in Mobile and Embedded Platforms
Improving Acoustic Detection and Classification in Mobile and Embedded Platforms
Stephen Xia, Xiaofan Jiang
Proceedings of the 20th International Conference on Information Processing in Sensor Networks (co-located with CPS-IoT Week 2021)   ·   18 May 2021   ·   doi:10.1145/3412382.3458784
CSafe: An Intelligent Audio Wearable Platform for Improving Construction Worker Safety in Urban Environments
CSafe: An Intelligent Audio Wearable Platform for Improving Construction Worker Safety in Urban Environments
Stephen Xia, Jingping Nie, Xiaofan Jiang
Proceedings of the 20th International Conference on Information Processing in Sensor Networks (co-located with CPS-IoT Week 2021)   ·   18 May 2021   ·   doi:10.1145/3412382.3458267

2020

PAMS: Improving Privacy in Audio-Based Mobile Systems
PAMS: Improving Privacy in Audio-Based Mobile Systems
Stephen Xia, Xiaofan Jiang
Proceedings of the 2nd International Workshop on Challenges in Artificial Intelligence and Machine Learning for Internet of Things   ·   16 Nov 2020   ·   doi:10.1145/3417313.3429383
A Deep-Reinforcement-Learning-Based Recommender System for Occupant-Driven Energy Optimization in Commercial Buildings
A Deep-Reinforcement-Learning-Based Recommender System for Occupant-Driven Energy Optimization in Commercial Buildings
Peter Wei, Stephen Xia, Runfeng Chen, Jingyi Qian, Chong Li, Xiaofan Jiang
IEEE Internet of Things Journal   ·   01 Jul 2020   ·   doi:10.1109/JIOT.2020.2974848
SPIDERS: Low-Cost Wireless Glasses for Continuous In-Situ Bio-Signal Acquisition and Emotion Recognition
SPIDERS: Low-Cost Wireless Glasses for Continuous In-Situ Bio-Signal Acquisition and Emotion Recognition
Jingping Nie, Yigong Hu, Yuanyuting Wang, Stephen Xia, Xiaofan Jiang
2020 IEEE/ACM Fifth International Conference on Internet-of-Things Design and Implementation (IoTDI)   ·   01 Apr 2020   ·   doi:10.1109/IoTDI49375.2020.00011
Demo Abstract: Wireless Glasses for Non-contact Facial Expression Monitoring
Demo Abstract: Wireless Glasses for Non-contact Facial Expression Monitoring
Yigong Hu, Jingping Nie, Yuanyuting Wang, Stephen Xia, Xiaofan Jiang
2020 19th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN)   ·   01 Apr 2020   ·   doi:10.1109/IPSN48710.2020.000-1

2019

Improving Pedestrian Safety in Cities Using Intelligent Wearable Systems
Improving Pedestrian Safety in Cities Using Intelligent Wearable Systems
Stephen Xia, Daniel de Godoy Peixoto, Bashima Islam, Md Tamzeed Islam, Shahriar Nirjon, Peter R. Kinget, Xiaofan Jiang
IEEE Internet of Things Journal   ·   01 Oct 2019   ·   doi:10.1109/JIOT.2019.2903519

2018

SPINDLES+: An adaptive and personalized system for leg shake detection
SPINDLES+: An adaptive and personalized system for leg shake detection
Stephen Xia, Peter Wei, Jordan Misael Vega, Xiaofan Jiang
Smart Health   ·   01 Dec 2018   ·   doi:10.1016/j.smhl.2018.07.019
Intelligent and privacy-preserving medication adherence system
Intelligent and privacy-preserving medication adherence system
Ji Jia, Jinyang Yu, Raghavendra Sirigeri Hanumesh, Stephen Xia, Peter Wei, Hyunmi Choi, Xiaofan Jiang
Smart Health   ·   01 Dec 2018   ·   doi:10.1016/j.smhl.2018.07.012
A Smartphone-Based System for Improving Pedestrian Safety
A Smartphone-Based System for Improving Pedestrian Safety
Stephen Xia, Daniel de Godoy, Bashima Islam, Md Tamzeed Islam, Shahriar Nirjon, Peter R. Kinget, Xiaofan Jiang
2018 IEEE Vehicular Networking Conference (VNC)   ·   01 Dec 2018   ·   doi:10.1109/VNC.2018.8628320
A Scalable System for Apportionment and Tracking of Energy Footprints in Commercial Buildings
A Scalable System for Apportionment and Tracking of Energy Footprints in Commercial Buildings
Peter Wei, Xiaoqi Chen, Jordan Vega, Stephen Xia, Rishikanth Chandrasekaran, Xiaofan Jiang
ACM Transactions on Sensor Networks   ·   27 Nov 2018   ·   doi:10.1145/3218582
Conductive Thread-Based Textile Sensor for Continuous Perspiration Level Monitoring
Conductive Thread-Based Textile Sensor for Continuous Perspiration Level Monitoring
Ji Jia, Chengtian Xu, Shijia Pan, Stephen Xia, Peter Wei, Hae Noh, Pei Zhang, Xiaofan Jiang
Sensors   ·   05 Nov 2018   ·   doi:10.3390/s18113775
Moisture Based Perspiration Level Estimation
Moisture Based Perspiration Level Estimation
Ji Jia, Chengtian Xu, Shijia Pan, Stephen Xia, Peter Wei, Hae Young Noh, Pei Zhang, Xiaofan Jiang
Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers   ·   08 Oct 2018   ·   doi:10.1145/3267305.3274177
Energy Saving Recommendations and User Location Modeling in Commercial Buildings
Energy Saving Recommendations and User Location Modeling in Commercial Buildings
Peter Wei, Stephen Xia, Xiaofan Jiang
Proceedings of the 26th Conference on User Modeling, Adaptation and Personalization   ·   03 Jul 2018   ·   doi:10.1145/3209219.3209244
PAWS: A Wearable Acoustic System for Pedestrian Safety
PAWS: A Wearable Acoustic System for Pedestrian Safety
Daniel de Godoy, Bashima Islam, Stephen Xia, Md Tamzeed Islam, Rishikanth Chandrasekaran, Yen-Chun Chen, Shahriar Nirjon, Peter R. Kinget, Xiaofan Jiang
2018 IEEE/ACM Third International Conference on Internet-of-Things Design and Implementation (IoTDI)   ·   01 Apr 2018   ·   doi:10.1109/IoTDI.2018.00031
Demo Abstract: An Ultra-Low-Power Custom Integrated Circuit Based Sound-Source Localization System
Demo Abstract: An Ultra-Low-Power Custom Integrated Circuit Based Sound-Source Localization System
Daniel de Godoy, Stephen Xia, Wendy P. Fernandez, Xiaofan Jiang, Peter R. Kinget
2018 IEEE/ACM Third International Conference on Internet-of-Things Design and Implementation (IoTDI)   ·   01 Apr 2018   ·   doi:10.1109/IoTDI.2018.00056

2017

ePrints: a real-time and scalable system for fair apportionment and tracking of personal energy footprints in commercial buildings
ePrints: a real-time and scalable system for fair apportionment and tracking of personal energy footprints in commercial buildings
Peter Wei, Xiaoqi Chen, Jordan Vega, Stephen Xia, Rishikanth Chandrasekaran, Xiaofan Jiang
Proceedings of the 4th ACM International Conference on Systems for Energy-Efficient Built Environments   ·   08 Nov 2017   ·   doi:10.1145/3137133.3137150
SPINDLES: A Smartphone Platform for Intelligent Detection and Notification of Leg Shaking
SPINDLES: A Smartphone Platform for Intelligent Detection and Notification of Leg Shaking
Stephen Xia, Yan Lu, Peter Wei, Xiaofan Jiang
Proceedings of the 2017 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2017 ACM International Symposium on Wearable Computers   ·   11 Sep 2017   ·   doi:10.1145/3123024.3124408

2016

SEUS: A Wearable Multi-Channel Acoustic Headset Platform to Improve Pedestrian Safety: Demo Abstract
SEUS: A Wearable Multi-Channel Acoustic Headset Platform to Improve Pedestrian Safety: Demo Abstract
Rishikanth Chandrasekaran, Daniel de Godoy, Stephen Xia, Md Tamzeed Islam, Bashima Islam, Shahriar Nirjon, Peter Kinget, Xiaofan Jiang
Proceedings of the 14th ACM Conference on Embedded Network Sensor Systems CD-ROM   ·   14 Nov 2016   ·   doi:10.1145/2994551.2996547