Dr. Ji is an editor of Journal of Digital Signal Processing, an editorial board member of Biomedical Engineering Research (BER), and a reviewer for 23 international journals. He is also a member of the Program Committees of various international conferences and workshops including the 2017 IEEE International Conference on Bioinformatics and Biomedicine, the 15th International Conference on Information Technology: New Generations, the 13th IEEE International Conference on Ubiquitous Computing and Communications, and so on.
				
			
					09/2015 – present Department of Electrical and Computer Engineering, Gonzaga University, Biomedical Literature Search and Knowledge Discovery
    - Developed a novel relevance feedback system, called BiomedSearch, for effective biomedical literature search.
 
06/2014 – present Department of Electrical and Computer Engineering, Gonzaga University, High-Performance Biomedical Association Mining
    - Developed a new high-performance association mining algorithm using MapReduce 
 
08/2009-08/2015 – Department of Electrical and Computer Engineering, Gonzaga University, Mining Infrequent Casual Associations
    - Developed a new interestingness measure that can be used to assess the degree of causal association between two events
 
    - Developed an efficient mining algorithm based on the above measure
 
    - Tested the above algorithm using real electronic health database
 
12/2003-06/2010 – Department of Electrical and Computer Engineering at Gonzaga University and Biomedical Intelligent Systems Laboratory at Wayne State University, A Collaborative Multi-Agent System Approach to Postmarketing Surveillance of Unknown Adverse Drug Reactions (This multidisciplinary work is supported by NIH R21grant)
    - Led system analysis and design of a multi-agent system for distributed healthcare
 
    - Developed a fuzzy logic-based computational recognition-primed decision model
 
    - Optimized the decision model using genetic algorithms and physicians’ expertise
 
    - Implemented the multi-agent system using Java, SQL, database, fuzzy inference tools
 
    - Participated in writing two grant proposals – NIH R21 and AHRQ R18
 
01/2002-12/2003 – Parallel and Distributed Computing Laboratory, Wayne State University, MigThread: Heterogeneous Process/Thread Migration and Checkpointing (This research was supported in part by NSF grants IGERT 9987598, NSF MRI 9977815, and NSF ITR 0081696)
    - Assisted in system analysis and design of MigThread
 
    - Developed adaptation strategies for application-level computation migration
 
    - Designed and did experiments to test these strategies under UNIX environment
 
12/2000-07/2001 Microcomputer Application Laboratory, University of Science & Technology of China, “Full TOF System” for RHIC – STAR
    - Assisted in developing a high frequency “Signal Amplifying Card” for its subsystem “High Precision MRPC Electronics System”
 
09/1999-04/2001 – Microcomputer Application Laboratory, University of Science & Technology of China, Microcomputer-Based Real-Time Gauge System (M.S. Thesis)
    - Designed a multi-channel data acquisition and control card
 
    - Developed the data acquisition and control software of the system
 
09/1998-07/1999 –  Microcomputer Application Laboratory, University of Science & Technology of China, Cable Television Charging System