I am currently working as a Postdoctoral Fellow at the University of Alberta in the SMR lab led by Prof. Sarah Nadi. Before that, I worked as a Postdoctoral Researcher for 3 years at Kyungpook National University in ESE Lab led by Prof. Woo Jin Lee. My main research interest is software engineering, with a special interest in mobile apps. Specifically, I am interested in software testing, program analysis, empirical software engineering, and mining software repository.


Contact Address - Computing Science Center (CSC), room 2-59B, University of Alberta, Edmonton, Canada.

Permanent Address - Murali Chowk, Janakpur-4, Nepal.

Email - ajaykum1@ualberta.ca

Peer-reviewed Publications Google Scholar DBLP GitHub

Annotation practices in Android apps [PDF]

Ajay Kumar Jha, Sarah Nadi

In Proceedings of 20th IEEE International Working Conference on Source Code Analysis & Manipulation (SCAM), 2020.


A Log-Based Testing Approach for Detecting Faults Caused by Incorrect Assumptions About the Environment [PDF]

Sooyong Jeong, Ajay Kumar Jha, Youngsul Shin, Woo Jin Lee

IEICE Transactions on Information and Systems. 103(1), pp. 170-173. 2020.


An empirical study of configuration changes and adoption in Android apps [PDF]

Ajay Kumar Jha, Sunghee Lee, Woo Jin Lee

Journal of Systems and Software (JSS). 156, pp. 164-180. 2019.


Characterizing Android-specific crash bugs [PDF]

Ajay Kumar Jha, Sunghee Lee, Woo Jin Lee

In Proceedings of the 6th IEEE/ACM International Conference on Mobile Software Engineering and Systems (MOBILESoft), pp. 111-122. IEEE Press, 2019.


A framework for testing Android apps by reusing test cases [PDF]

Ajay Kumar Jha, Deok Yeop Kim, Woo Jin Lee

In Proceedings of the 6th IEEE/ACM International Conference on Mobile Software Engineering and Systems (MOBILESoft), pp. 20-24. 2019. Vision Track.


An empirical study of collaborative model and its security risk in Android [PDF]

Ajay Kumar Jha, Woo Jin Lee

Journal of Systems and Software (JSS). 137, pp. 550-562. 2018.


Developer mistakes in writing Android manifests: An empirical study of configuration errors [PDF]

Ajay Kumar Jha, Sunghee Lee, Woo Jin Lee

In Proceedings of the 14th International Conference on Mining Software Repositories (MSR), pp. 25-36. IEEE Press, 2017.


Analysis of permission-based security in android through policy expert, developer, and end user perspectives [PDF]

Ajay Kumar Jha, Woo Jin Lee

Journal of Universal Computer Science (J. UCS), vol. 22, no. 4 (2016), 459-474.


Modeling and test case generation of inter-component communication in android [PDF] [Extended Version - [PDF]

Ajay Kumar Jha, Sunghee Lee, Woo Jin Lee

In Proceedings of the 2nd ACM International Conference on Mobile Software Engineering and Systems (MOBILESoft), pp. 113-116. IEEE Press, 2015.


Value-deterministic search-based replay for android multithreaded applications [PDF]

Ajay Kumar Jha, Sooyong Jeong, Woo Jin Lee

In Proceedings of the 2013 Research in Adaptive and Convergent Systems (RACS), pp. 381-386. ACM, 2013.


Capture and replay technique for reproducing crash in android applications [PDF]

Ajay Kumar Jha, Woo Jin Lee

In Proceedings of the 12th IASTED International Conference in Software Engineering, pp. 783-790. 2013.