Meet the members of the HATLab. Our members include a wide variety of people including graduate researchers and undergraduate research assistants. Check out this page to see who’s working on the newest research on humans and technology.


Dr. Kelly Caine
Kelly Caine is Director of the Humans and Technology lab (HATLab) and Associate Professor in the Human-Centered Computing Division of the School of Computing at Clemson University. She and her team conduct research on usable privacy and security, health informatics, wearable computing and aging-in-place all with a focus on human factors issues related to designing privacy-enhanced systems. Dr. Caine has a B.A. in Psychology from the University of South Carolina and a M.S. and Ph.D. in Engineering Psychology from the Georgia Institute of Technology.
Dr. Bart Knijnenburg
Bart Knijnenburg is Co-Director of the HATLab and Assistant Professor in the Human-Centered Computing Division of the School of Computing at Clemson University. He is a researcher on privacy decision-making and recommender systems. Dr. Knijnenburg has a BSc and MSc from Eindhoven University of Technology, a a MHI from Carnegie Mellon University and a PhD from the University of California, Irvine.

Graduate Research Assistants

Reza Ghaiumy Anaraky
Reza Ghaiumy Anaraky is a PhD student in Human-Centered Computing at Clemson University. He researches on two major topics; privacy decision making and wellbeing on social media.
Paritosh Bahirat
Paritosh Bahirat is a PhD student in Human-Centered Computing with projects focused on Privacy in Internet of Things (IOT) environments. He completed his Masters Degree in Industrial Engineering (Human Factors) from Clemson University and a Bachelors degree in Mechanical Engineering from University of Pune, India. He is specifically interested in Statistical Data analysis and Designing Interfaces.
Cheng Guo
Cheng Guo is a Human-Centered Computing Ph.D. student at Clemson. He has a Bachelor in E-commerce from Nanjing University of Chinese Medicine, a Bachelor in E-commerce from Swinburne University of Technology and a M.S. in Information Science from University of Pittsburgh. Prior to joining the HATLab, he worked as a researcher at Human-Computer Interaction Institute at Carnegie Mellon University. His research interests are Usable Security & Privacy and Health Informatics.
Lijie Guo
Lijie Guo is a Ph.D. student in Human-Centered Computing Division of the School of Computing at Clemson University. She holds the B.S. degree in information and computing science from China University of Mining and Technology, Beijing, China, and the M.S. degree in cartography and geographic information system from the Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China. Her doctoral research focuses on Recommender Systems.
Marie Jarrell
Marie A. Jarrell is a PhD student in Clemson University’s Human Centered Computing Division. They hold Master degrees in Digital Production Arts and Computer Science from Clemson and a B.A in Graphic Design from Hampton University. Their research focuses on video games, VR simulations, immersion, identification, and representation. They serve as the lead organizer of Outreach and Recruitment for the HATLab. They are also a multimedia producer at the Harvey and Lucinda Gantt Multicultural Center.
Yifang Li
Yifang Li is a PhD candidate in the Human-Centered Computing Division of the School of Computing at Clemson University, under the supervision of Dr. Kelly Caine. Her research interests are in the areas of usable security and privacy, human-computer interaction, and designing for older adults. Her most recent research involves the investigation of the effectiveness and user experience of photo obfuscation methods. Yifang received her M.S. in Industrial Design from the Georgia Institute of Technology in 2015, and her B.A. in Industrial Design from Jiangnan University (China) in 2012.
Byron M. Lowens
Byron M. Lowens is a Ph.D. student in Human-Centered Computing Division of the School of Computing at Clemson University. He holds a B.S. in Electronics Engineering from Southern University and A&M College, and M.S. in Computer Science from Virginia State University. Prior to joining the HATLab, Byron worked as a Full-Time Instructor at Virginia State University in the College of Engineering and Computer Science. His main research interests are wearable computing, usable privacy and security, and pervasive computing.
Moses Namara
Moses Namara is a PhD student in Human-Centered Computing at Clemson University School of Computing working under the supervision of Dr.Bart Knijnenburg. He joined the Hatlab as a Graduate Research Assistant in Spring 2017. He holds a Bsc in Computer Science (2016) from the University of Maryland, College Park. His research interests are in usable privacy and security, human factor issues as related to design of privacy-enhancing and social media technologies. Moses grew up in Kampala, Uganda.
Daricia Wilkinson
Daricia Wilkinson is a Ph.D. student in the Human-Centered Computing program at Clemson. Prior to joining the Hatlab she earned her Bachelor’s degree in Information Systems and Technology from the University of the Virgin Islands. Her research focuses on usable privacy and security and recommender systems.

Brodrick Stigall
Brodrick Stigall is a 2nd-year Ph.D. student in the Human-Centered Computing. He holds a Bachelor of Science in Computer Science from University of Tennessee and Master of Science in Computer Science from Georgia Institute of Technology. Prior to beginning his doctoral studies, Brodrick spent 7 years working in E-Commerce at Fortune 500 companies International Paper Co. and AutoZone Inc. Both are located in his home town of Memphis, Tennessee. Brodrick’s research focuses on virtual agents (also known as conversational agents and chatbots) which have the ability to dynamically change interaction with and adoption of technology especially among older adults (adults over 65).

He is a benefactor of the Graduate International Research Experience grant and spent 6 months doing research internationally at the Interaction Design lab at University of Melbourne (Australia).

He is a 2020 recipient of the GEM Fellowship

Undergraduate Research Assistants

Ryan Preston
Ryan Preston is a third year undergraduate student majoring in Computer Information Systems at Clemson University. He is interested in making human-computer interactions more intuitive, and increasing ease-of-use with regards to user interfaces.


Dr. Vivian Motti
Now at George Mason
Dr. Melva James
Now at MIT Lincoln Lab
Dr. Mahdi Nasrullah Al-Ameen
Now at Utah State
David Cherry

Cayden Wagner
Siva Likitha Valluru
John Xue
Micheala Bennekin
Now at Boeing
Jing LYU
Shahla Farzana
Now at UIC
Pratitee Sinha
Abhilash Menon
Katlin Helfter
MaryJo May
Brian Justice
Jordan Minoda
Jenna Darrah
Now at NCSU
Ravi Teja Kandula
Sameer Singh
Amanda Todd
Darrell Best
Emily Matthews
Subina Saini
Hayley Mcconnell
Brianne Campbell
Kimberley Shappell
Omar Mayar
Peter Barnett
Now at Boeing
Keanau Ormson
Dane Smith
Caitlyn Dowenen
Spencer Kohn
Now at George Mason
Zack Robinson
Megan Holder
Justin Stephens