Mobile Artificial Intelligence Laboratory
Mobile Artificial Intelligence Laboratory
ABOUT
The Mobile Artificial Intelligence Laboratory (mAI-Lab) stands at the forefront of research intersecting artificial intelligence with mobile & wearable computing. The lab's primary mission is to harness the capabilities of smartphones, wearables, and the Internet-of-Things (IoT) to enhance the quality of life. The lab’s innovations span three pivotal domains:
- Health informatics through smartphone and wearable sensing, offering insights into conditions like COPD and asthma.
- User authentication using physiological and behavioral biometrics from IoT wearables, ensuring data privacy.
- Pinpointing places of interest (POI) via alternative sensor data, especially when conventional location data is compromised.
A significant portion of the lab's research involves analyzing vast human study datasets, obtained via the mobile crowdsensing approach. Their contributions have been recognized in prestigious platforms, including Forbes. Over the past decade, mAI-Lab has collaborated with leading academic and industrial research institutions in the US and Europe, exploring extensive health datasets from smart devices. The overarching objective of the lab is to transform healthcare, paving the way for innovative mobile tools that enable individuals to actively manage their health and well-being.
Director
Sudip Vhaduri- Assistant Professor
Dr. Sudip Vhaduri serves as an assistant professor in the Department of Computer and Information Technology at Purdue University. A Ph.D. graduate from the University of Notre Dame, he directs the mobile and wearable artificial intelligence (mAI) Lab. His research, in collaboration with institutions like IBM Research, focuses on the intersection of artificial intelligence with mobile & wearable computing, emphasizing Health Informatics, Biometric Authentication, and Place Discovery. Dr. Vhaduri's innovative work aims to enhance individuals' quality of life through secure, impactful technologies.
Affiliations: The Center for Education and Research in Information Assurance and Security (CERIAS), Purdue Institute of Inflammation, Immunology and Infectious Disease (PI4D), Institute for a Sustainable Future (ISF), The Institute of Electrical and Electronics Engineers (IEEE), IEEE Computer Society, IEEE Signal Processing Society, IEEE Engineering in Medicine and Biology Society, IEEE Geoscience and Remote Sensing Society; also, closely work with the Center for Instructional Excellence (CIE) and Purdue University Innovative Learning.
Projects
Chronic Cough Project (2020 – present):
In collaboration with clinician researchers from the College of Medicine at the University of Cincinnati, we are conducting studies in patients’ home environments. We are collecting audio recordings from patients with idiopathic pulmonary fibrosis (IPF). This study aims to determine the feasibility of objectively detecting cough symptoms from audio recordings. Findings from this feasibility study can be insightful to extend to develop models that can be deployable to personal devices in the future to detect other symptoms as well for real-time patient monitoring and just-in-time personalized intervention delivery.
Project details and publications can be found here.
Biometric Authentication Project (2020 – present):
We are conducting studies to determine the feasibility of developing implicit authentication models that can validate a user based on physiological soft biometrics, such as heart rate, and behavioral soft biometrics, such as breathing patterns, to enable the development of a seamless mechanism to identify a user uninterruptedly. We also investigate the potential risks of losing/leaking biometric samples.
Project details and publications can be found here.
Effective Subjective Reporting Project (2021 – present):
Though personal devices, such as smartphones and smartwatches, are making our life easier with a wide range of services, including health and wellness monitoring with their improved sensing and computing capabilities, healthcare providers and caregivers widely rely on self-reported surveys to assess a person’s mental health and well-being using standard surveys. Most importantly, there are situations when self-reported surveys play an irreplaceable role. For example, reporting pain. We have been conducting studies to understand various factors and their impacts, as well as to predict the reliability of a survey response to develop systems that enable just-in-time capture of reliable patient information to better understand the patient’s condition.
Project details and publications can be found here.
CAir Project (2018 – 2021):
The project was conducted by the Smart System Integration team at IBM Research, Zurich, with a primary focus on developing automated management and prevention of Chronic Obstructive Pulmonary Disease (COPD) using multi-sensor data-fusion techniques. COPD is expected to be the third leading cause of death worldwide by 20301. This was a joint collaboration project among researchers from IBM Zurich, IBM Thomas J. Watson Research Center, Yorktown, NY, and docdok.health, a swiss healthcare provider. The ultimate goal of the project was to develop a set of sensors and machine learning models aiming to improve the life quality of COPD patients, facilitate patient-physician communication, and simultaneously reduce the financial burden on healthcare systems, which is expected to be more than $90 billion in the US by 20202.
[1] According to the World Health Organization
[2] According to the Centers for Disease Control and Prevention
Project details and publications can be found here.
NetHealth Study (2015 – 2021):
The NetHealth study is designed to assess the health trends of a closely networked, on-campus undergraduate student population. This running study involves ~900 students (both iPhone and Android users). Using smartphones, we are collecting various types of system information (e.g., battery charge level, charging status), user activity data (e.g., screen lock/unlock, display on/off, browsing history, app use, audio port status), communication data (e.g., phone call, SMS, MMS), location data, and proximity information (WiFi/Bluetooth scan records). We also use Fitbits to collect subjects’ physiological data, such as heart rate, calorie burn, step counts, activity type, and activity intensity. In this study, we investigate health and well-being tracking, phone call behavior analysis and prediction, sleep quality assessment and forecasts, and places of importance discovery from alternative data using cooperative approaches.
Project details and publications can be found here.
NetSense Study (2011 – 2013):
The NetSense study was primarily designed to investigate how the social network evolves among on-campus undergraduate students with varying backgrounds. The study ran over two years on 200 students, where we captured subjects’ phone usage (battery level, charging information) and communication data (sms, MMS, phone call) as well as phone sensor data (location, wifi, and Bluetooth proximity records, phone screen on/off record) using their own android phones.
Project details and publications can be found here.
Publications
Dr. Sudip Vhaduri has been a prolific contributor to the fields of artificial intelligence, mobile computing, and health informatics. His extensive body of work spans topics like multi-modal biometric authentication, visualization of sensor data, and health trends assessment using smartphones. With over 20 published articles in esteemed journals and conferences such as the IEEE Transactions on Information Forensics and Security and the ACM International Joint Conference on Pervasive and Ubiquitous Computing, Dr. Vhaduri's contributions have garnered significant attention and citations. Below is a curated list of his scholarly publications, reflecting his dedication to advancing interdisciplinary research.
Outreach & Mentoring
Spring'25: The mAI lab has had a new dimension of outreach. We have had our very first PODCAST (with Google NotebookLM) on our recent publication of multimodal audio-based disease prediction with Transformer-based hierarchical fusion network in the IEEE/ACM Transactions on Audio, Speech, and Language Processing, ranked #1 journal on acoustics and sound, by Google Scholar. While reaching out to community stakeholders of this work through the podcast, we found that the stakeholders rated the podcast an average of 4.9 out of 5 in terms of being helpful in understanding the work without prior technical knowledge, knowing its technical, clinical, and broader impacts, and the future promise the work has enabled.
Fall'24: I was invited to give a research talk (title: Are We Yet There? Utilizing Personal Devices and AI to Improve Healthcare and Empower People) at the Data to Action Seminar at the Luddy School of Informatics, Computing, and Engineering, Indiana University. It was wonderful sharing and discussing our impactful research contributions with the vibrant community of fantastic faculty members and students at IU. I'm very thankful to the organizers for hosting our mAI lab and me.
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Summer'24: It was a privilege to become part of the Faculty Panel in a Mini-Course for High School Students -- Planning for Research in College. We had 27 students from different states, including IN, CA, MO, TX, MA, MI, NJ, NY, and WA. I was amazed by the broad spectrum of topics they brought into the discussion. Some asked me -- How can undergraduate research shape a student's future career or academic path? What are you looking for when you want to work with an undergraduate student? How do you mentor and support college students who are new to research?
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Spring'24: We had a day-long workshop with Purdue Polytechnic High School (PPHS) students. We spent time with 25 students from three PPHS campuses, two residing in communities with high Social Vulnerability Index scores, and 37% and 25% of the students are Black and Hispanic, respectively. During the hands-on sessions, we demonstrated different smartphone applications to help monitor our daily activities and assess their impact.
Spring'23: As part of the WOWiT: Windows of Opportunity for Women in Technology program, under the initiative of the recruitment, retention, and diversity office, we had a break-out session with rising 9th, 10th, 11th, and 12th-grade female students. During the session, we demonstrated how AI and smart technologies are impacting different areas of our daily lives to inspire young minds to pursue STEM careers. The WOWiT participants (left) and my undergraduate and graduate mentees (right).
