Johnny S. Wong
Professor

Office: 202 Atanasoff Phone: (515) 294-2586 Fax: (515) 294-0258 Email: wong@cs.iastate.edu Homepage: http://www.cs.iastate.edu/~wong/homepage.html

Current Affiliations

• Member, IEEE Computer Society
• Member, ACM

Research Interests

His research interests include Operating Systems, Distributed Systems, Communication Networks, Multimedia and Medical Information Systems, Intelligent Multi-Agents Systems, Data Mining, Intrusion Detection and Response, Wireless Ad-hoc Networks and Peer-to-Peer Systems.

Research Areas

Distributed Computing and Networks, Information Security, Multi-Agent Systems, Software Systems, Multimedia Systems

Research Statement

Dr. Wong's research interests include design and implementation issues in operating systems, distributed systems, multimedia communication and medical information systems. Current activities focus on systems and network security, intrusion detections and response using intelligent mobile agents, endoscopic medical information system (EMIS).

1. Intelligent Multi-Agent for Intrusion Detection and Countermeasures.

Intrusion detection on heterogeneous distributed systems naturally involves data in various formats and structures, such as log files and real-time operational event data, lending itself to the use of the information retrieval and data mining techniques. Also, intrusion detection and countermeasures would seem to require software which could learn and adapt to the characteristics of a set of systems, which seems to mesh well with autonomous agents. Much of the prior work in intrusion detection involves various artificial intelligence methods and algorithms, which is already an integral part of our intelligent agent work. Our approach to intrusion detection and countermeasures will start with our developing the technical foundation for the work based on known vulnerabilities and components of systems that may be monitored. Then, autonomous software agents will be developed to implement the data warehouse approach to intrusion detection and countermeasures. The data warehouse will be developed using identified attacks and collected system data along with knowledge learned by the agents. The knowledge of the data warehouse will be examined for potential improvements in the intrusion detection system and countermeasures will be identified and developed. Finally, the developed intrusion detection and countermeasures software will be integrated into existing servers for potential distribution to the public. The proposed research seeks to - design, implement, and evaluate adaptive and mobile intelligent multi-agents for intrusion detection and countermeasures in a distributed heterogeneous computing environment; - design, implement, and evaluate alternative (e.g., reactive, deliberative, adaptive, knowledge-based) software prototypes for intelligent multi-agents for intrusion detection; - design, implement, and evaluate a novel architecture for a data warehouse to support data storage and information retrieval in heterogeneous, and distributed databases and knowledge bases; - design, implement, and evaluate alternative approaches to automated or semi-automated knowledge acquisition (using machine learning techniques) from distributed data sources. - integrate developed software for intrusion detection and countermeasures into existing systems.

This research is currently supported through a grant from National Security Agency (NSA), with Drs. Les Miller and Vasant Honavar as co-PIs. In collaboration with Ph.D. student Guy Helmer, we have published several papers in refereed journal and conference.

2. Multimedia and Medical Information System

Nowadays, multimedia information is being generated in increasing quantities. This is due to technological advances in the hardware and software required to access and manage the information. Some of the major hardware advances are reflected in the availability of audio and video processors on workstations, computer interfaces to video products like VCRs, camcorders and video mixers, high capacity storage disks and fast graphics boards for animations. The development of image and video compression algorithms, media file formats, multimedia authoring and presentation systems, and the development of the World Wide Web hypermedia browsers like Netscape and Internet Explorer are software advances that have contributed to the growing archives of multimedia information.

There is a need for the storage of this information in multimedia databases. There is also a need to provide remote access to information stored in these databases. Multimedia databases need to model the structure of the multimedia information and allow for content based retrieval in addition to providing traditional database functions such as access control, concurrency control, transactions, version and storage management. Research in this area has indicated that Object Oriented Database Management Systems are best suited to store multimedia information.

In collaboration with several graduate students, we have designed and developed a software prototype for a multimedia information management system that is based on an object-oriented database management system. We also examine and develop various techniques, including CORBA, Java RMI, HTTP and Mobile Agents, to process, manage and access multimedia information.

In the past few years, a number of projects were funded by NSF coalition, IBM Corporation, DOE Ames Laboratories, and Engineering Animation, Inc. (EAI). Currently, a research and development project, funded by the National Science Foundation, the Grow Iowa Values Fund, Iowa State University Research Foundation (ISURF), a Clinical Practice Innovation Award from Mayo Clinic, and the Miles and Shirley Fiterman Endowment Fund for Digestive Diseases, is under way to manage and access endoscopic medical information systems (EMIS). Several papers have been published in refereed journals and conferences.

Education

Ph.D.   University of Sydney, NSW Australia   1987
M.S.   University of Sydney, NSW Australia   1982
B.S.   The University of Hong Kong   1977

Honors and Awards

Pappajohn Business Plan Competition 2007  "Second place award in the Pappajohn Business Plan Competition 2007", John Pappajohn Iowa Business Plan Competition, 2007

American College of Gastroenterology (ACG) Governors Award 2006  "A study led by Prof. Wallapak Tavanapong, Prof. Johnny Wong, Prof. Piet de Groen of the Mayo Clinic and Prof. JungHwan Oh of UNT was honored at the ACG Annual Meeting for Excellence in Clinical Research", American College of Gastroenterology, 2006

Current Grants

Improving Colonoscopy quality through automated monitoring (additional funding to the AHRQ grant). P. de Groen, W. Tavanapong, J. Wong, J. Oh and D. Rex. NIH/NIDDK (2009-2012). $238,105.

Improving Colonoscopy Quality through Automated Monitoring. Piet de Groen, Wallapak Tavanapong, Johnny Wong and Doug Rex. Agency for Healthcare Research and Quality (AHRQ) of the US Department of Health and Human Services (2008-2011). $899,354.

Federal Cyber Service: Scholarship for service. D. Jacobson, C. Bergman, J. Wong, B. Licklider, and J. Wiersema. NSF (2009-2011). $1,368,867.

CPATH-1: Experimenting with an Open Platform for the New Interdisciplinary Study on Gerontechnology. C. Chang, P. Martin, S. Mitra, J. Wong, M. Shelley. NSF (2009-2010). $149,472.

An Integrated Solution to Provide Privacy, Confidentiality, Integrity and Reliability Protection for Sensor Data Management. Wensheng Zhang, Daji Qiao and Johnny Wong. NSF (2007-2010). $250,000.

Control System for Colonoscopy. Johnny Wong and Wallapak Tavanapong. ISU Research Foundation (2009-2010). $25,000.

Response to Collaborative Attacks Against Network Vulnerability. Johnny Wong and Samik Basu. National Science Foundation's Industry/University Cooperative Research Center (I/UCRC) (2009-2009). $25,000.

SFS Scholarships for Information Assurance Students. Douglas Jacobson, Barbara Licklider, Johnny Wong and Cliff Bergman. NSF (2005-2009). $888,008.

Evaluation of Quality Assessment Tools for Colonoscopy. Johnny Wong and Wallapak Tavanapong. Grow Iowa Values Fund (GIVF) (2007-2009). $100,592.

Enhancement of a Quality Control System for Colonoscopy. Johnny Wong and Wallapak Tavanapong. ISU Research Foundation (2008-2009). $25,000.

Representative Publications

Refereed Journal and Conference Publications

Y. Wang, W. Tavanapong, J. Wong, J. Oh and P. de Groen. Detection of Quality Visualization of Appendiceal Orifices using Local Edge Cross-Section Profile Features and Near Pause Detection. IEEE Transactions on BioMedical Engineering, IEEE, Accepted, 2009.

J. Alamo, H. Yang, R. Babbitt, J. Wong and C. Chang. Support for Medication Safety and Compliance in Smart Home Environments. International journal of advanced pervasive and ubiquitous computing, IGI Global, Accepted, 2009.

J. Oh, S. Hwang, J. Lee, W. Tavanapong, P. de Groen and J. Wong. Measuring Objective Quality of Colonoscopy. IEEE Transactions on BioMedical Engineering, IEEE. Vol. 56. No. 9. pp. 2190-2196, 2009.

N. Stakhanova, S. Basu and J. Wong. On the Symbiosis of Specification-based and Anomaly-based Detection. Computers & Security, Elsevier, Accepted, 2009.

R. Babbitt, H. Yang, J. Wong and C. Chang. Environmental Objects: A Novel Approach for Modeling Privacy in Pervasive Computing. ICOST 2009, Tours, France, Springer. Vol. LNCS 5597. pp. 166-173, 2009.

J. Alamo, J. Wong, R. Babbitt, H. Yang and C. Chang. Using Web Services for Medication Management in a Smart Home Environment. ICOST 2009, Tours, France, Springer. Vol. LNCS5597. pp. 265-268, 2009.

Xia Wang, Johnny Wong, F. Stanleyand S. Basu. Cross-layer Based Anomaly Detection in Wireless Mesh Networks. SAINT2009, Seattle, WA. pp. pp.9-15, 2009.

C. Strasburg, N. Stakhanova, S. Basu and J. Wong. A Framework for Cost Sensitive Assessment of Intrusion Response Systems. 33rd International Computer Software and Applications Conference COMPSAC 2009, Seattle, WA, USA, IEEE. pp. 355-360, 2009.

DongHo Hong, Wallapak Tavanapong, JungHwan Oh, Piet deGroen and Johnny Wong. 3D Reconstruction of Colon Segments from Colonoscopy Images. International Conference on Bioinformatics and Bioengineering (BIBE 2009), Taichung, Taiwan, IEEE, 2009.

Ashwin Naratajan, Ying Cai and Johnny Wong. An Enhanced Client-Centric Approach for Efficient Video Broadcast. Multimedia Tools and Applications, Springer. Vol. 43. No. 2. pp. 179-193, 2009.

José M. Reyes Álamo, Tanmoy Sarkar, and Johnny Wong. Composition of Services for Notification in Smart Homes. Second International Symposium on Universal Communication, Osaka, Japan, IEEE. pp. 75-78, 2008.

Chris Strasburg, Natalia Stakhanova, Samik Basu, and Johnny S. Wong. Intrusion response cost assessment methodology. ACM Symposium on Information, Computer & Communication Security (ASIACCS 2009), Sydney, Australia. pp. 388-391, Accepted, 2008.

Natalia Stakhanova, Chris Strasburg, Samik Basu and Johnny Wong. On Evaluation of Response Cost for Intrusion Response Systems. RAID '08: Proceedings of the 11th international symposium on Recent Advances, Berlin, Heidelberg, Springer. Vol. 5230/2008. pp. 390-391, 2008.

Uphoff, B. and Wong, J. An Agent-Based Framework for Intrusion Detection Alert Verification and Event Correlation. The International Journal of Security and Networks, InderScience. Vol. 3. No. 3. pp. 193-200, 2008.

Jose M Reyes Alamo, Johnny Wong,Ryan Babbitt and Carl Chang. MISS: Medicine Information Support System in the Smart Home Environment. 6th International Conference (ICOST 2008), Ames, Iowa, Springer. pp. 185-199, 2008.

Yi Wang, Wallapak Tavanapong, Johnny S Wong, JungHwan Oh, Piet de Groen. Edge Cross-Section Features for Detection of Appendiceal Orifice Appearance in Colonoscopy Videos. IEEE Engineering in Medicine and Biology Conference, Vancouver, Canada, IEEE. pp. 3000-3003, 2008.

Sae Hwang, JungHwan Oh, Wallapak Tavanapong, Johnny S Wong, Piet de Groen. Stool Detection in Colonoscopy Videos. IEEE Engineering in Medicine and Biology Conference, Vancouver, Canada, IEEE. pp. 3004-3007, 2008.

M. Zhang, J. Wong, W. Tavanapong, J. Oh, and P. C. de Groen. Design and Analysis of a Media Uploading System. Journal of Multimedia Tools and Applications, Springer. Vol. 38. No. 1. pp. 51-74, 2008.

S. Stanek, W. Tavanapong, J. Wong, J. Oh, and P. C. de Groen. Automatic Real-Time Capture and Segmentation of Endoscopy Video. Medical Imaging 2008: PACS and Imaging Informatics, San Diego, CA, SPIE. Vol. 6919. pp. 69190-69199, 2008.

D. Liu, Y. Cao, K. Kim, S. Stanek, B. Doungratanaex-chai, K. Lin, W. Tavanapong, J. Wong, J. Oh, and P. C. de Groen. Arthemis: Annotation Software in an Integrated Capturing and Analysis System for Colonoscopy. Computer Methods and Programs in Biomedicine. Vol. 88. No. 2. pp. 152-163, 2007.

S. Hwang, J. Oh, W. Tavanapong, J. Wong, and P. C. de Groen. Polyp Detection in Colonoscopy Video Using Elliptical Shape Feature. IEEE Int'l Conf. on Image Processing, San Antonio, Texas, IEEE. pp. 465-468, 2007.

D. Liu, Y. Cao. W. Tavanapong, J. Wong, J. Oh, and P. C. de Groen. Quadrant Coverage Histogram: A New Method for Measuring Quality of Colonoscopy Procedures. IEEE EMBC 2007, Lyon, France, IEEE, 2007.

Xia Wang and Johnny Wong. An End-to-End Detection of Wormhole Attack in Wireless Ad-hoc Networks. IEEE COMPSAC 2007, Beijing, China, IEEE. Vol. 1. pp. 39-46, 2007.

Ryan Babbitt, Johnny Wong and Carl Chang. Towards the Modeling of Personal Privacy in Ubiquitous Computing Environments. The Second IEEE Workshop on Security, Trust and Privacy for Software Applications, Beijing, China, IEEE. Vol. 2. pp. 695-699, 2007.

Y. Cao, D. Liu, W. Tavanapong, J. Wong, J. Oh and P.C. de Groen. Computer-aided Detection of Biopsy and Therapeutic Operations in Colonoscopy Videos. IEEE Transactions on Biomedical Engineering, IEEE. Vol. 54. No. 7. pp. 1268-1279, 2007.

Natalia Stakhanova, Samik Basu, and Johnny Wong. A Cost-Sensitive Model for Preemptive Intrusion Response Systems. IEEE 21st Conference on Advanced Information Networking and Applications (AINA-07), Niagara Falls, Canada, IEEE. pp. 428-435, 2007.

Natalia Stakhanova, Samik Basu, WenSheng Zhang, Xia Wang and Johnny Wong. Specification Synthesis for Monitoring and Analysis of MANET Protocols. International Symposium on Frontiers in Networking with Applications (FINA) 2007, Niagara Falls, Canada, IEEE. pp. 183-187, 2007.

S. Hwang, J. Oh, J. Lee, W. Tavanapong, P. de Groen and J. Wong. Informative Frame Classification for Endoscopy Video. Medical Image Analysis Journal. Vol. 11. No. 2. pp. 110-127, 2007.

Sae K. Hwang, J. Oh, W. Tavanapong, P. deGroen and J. Wong. Automatic polyp segmentation for colonoscopy image using watershed. SPIE Symposium on Medical Imaging, San Diego, California USA, SPIE, 2007.

Liu, D., Cao, Y. , Tavanapong, W., Oh, J., de Groen, P. and Wong, J. Mining Colonoscopy Videos to Measure Quality of Colonoscopic Procedures. International Conference on Biomedical Engineering (BioMed), Innsbruck, Austria, IASTED. pp. 409-414, 2007.

Helmer, G., Wong, J., Slagell, M., Honavar, V., Miller, L., Wang, Y., Wang, X., and Stakhanova, N. Software Fault Tree and Colored Petri Net Based Specification, Design and Implementation of Agent-Based Intrusion Detection Systems. International Journal of Information and Computer Security, Inderscience. Vol. 1. No. 1/2. pp. 109-142, 2007.

Stakhanova, N., Basu, S. and Wong, J. A Taxonomy of Intrusion Response Systems. The International Journal of Information and Computer Security, Inderscience. Vol. 1. No. 1/2. pp. 169-184, 2007.

Y. Cai, A. Natarajan and J. Wong. On Scheduling of Peer-to-Peer Video Services. IEEE Journal on Selected Areas in Communications, IEEE. Vol. 25. No. 1. pp. 140-145, 2007.

Stakhnova, N., Basu, S., Lutz, R. and Wong, J. Automatic caching of behavioral patterns for efficient run-time monitoring. The 2nd IEEE International Symposium on Dependable, Autonomic and Secure Computing (DASC'06), Indianapolis, USA, IEEE. pp. 333-340, 2006.

Yu Cao, Danyu Liu, Wallapak Tavanapong, J. Wong, J. Oh, and P. deGroen. Automatic Classification of Image with Appendiceal Orifice in Colonoscopy Videos. IEEE 2006 International Conference of the Engineering in Medicine and Biology, New York, NY, IEEE. pp. 2349-2352, 2006.

Yang, C., Zhang, W., Wong, J., Long, L., and R. Ng. Combinatorial Design Based Key Pre-distribution Schemes for Wireless Sensor Network. International Journal of Security and Network, Inderscience, Submitted, 2006.

Uphoff, B. and Wong, J. Multi-Paradigm Alert Correlation. The International Journal of Information and Computer Security, Submitted, 2006.

Chanjun Yang, Jianming Zhou, Wensheng Zhang and Johnny Wong. Pairwise Key Establishment for Large-Scale Sensor Networks: from Identifier-based to Location-Based. Infoscale 2006: First International Conference on Scalable Information Systems, Hong Kong, ACM. pp. 1-4, 2006.

Uphoff, B. and Wong, J. A Multiple Criteria Hill Climbing Algorithm for Alert Correlation Feature Selection. The International Journal of Network Security, Submitted, 2006.

Ryan Babbitt, Johnny Wong, Carl Chang and Simanta Mitra. Privacy Management In Smart Homes: Design And Analysis. International Conference on Aging, Disability and Independence, ST. Petersburg, Florida. pp. 255, 2006.

W. Putthividhya, W. Tavanapong and J. Wong. Core-based Routing with QoS Support for Distributed Interactive Multimedia Applications. International Journal of Computer Science and Network Security. Vol. 6. No. 1B. pp. 47-57, 2006.

Uphoff, B. and Wong, J. Web services for network security data sources. The International Journal of Information Security, Submitted, 2006.

Wang, Y., Behera, S., Wong, J., Helmer, G., Honavar, V., Miller, L., Slagell, M. and Lutz, R. Towards the automatic generation of mobile agents for distributed intrusion detection systems. Journal of Systems & Software, Elsevier. Vol. 79. No. 1. pp. 1-14, 2006.

R. Babbitt, D. Lu, C. Chang and J. Wong. Requirements Engineering for Smart Homes to Support Successful Aging, Disability and Independence. Annals of The European Academy of Sciences, EAS Publishing House. pp. 107-127, 2005.

Sae Hwang, JungHwan Oh, JeongKyu Lee, Wallapak Tavanapong, Johnny Wong, Yu Cao, Danyu Liu, and Piet C. de Groen. Automatic Measurement of Quality Metrics for Colonoscopy Videos. ACM MM 05, Singapore, ACM. pp. 912-921, 2005.

Natalia Stakhanova, Samik Basu, Johnny Wong, and Oleg Stakhanov. Trust Framework for P2P Networks with Peer-Profile based Anomaly Detection. ICDCSW '05: The 2nd International Workshop on Security in Distributed Computing Systems (SDCS-2005), Columbus , OH, IEEE Computer Society. pp. 203-209, 2005.

Piet C. de Groen, Wallapak Tavanapong, Jung Hwan Oh, Johnny S. Wong. Computer-Aided Detection Of Biopsies and Therapeutic Operations in Colonoscopy Videos. Digestive Disease Week 2005, McCormic Place, Chicago, USA, 2005.

Ying Cai, Ashwin Natarajan, Johnny Wong. Shaking Service Requests in Peer-to-Peer Video Systems. Globecom 2005, St. Louis, MO, Accepted, 2005.

Ying Cai, Ashwin Natarajan, Johnny Wong. On Scheduling of Peer-to-Peer Video Services. 14th Int'l Conference on Computer Communications and Networks (IC3N), San Diego, CA, Submitted, 2005.

Y.-H. An, S. Hwang, J. Oh, W. Tavanapong, P. C. de Groen, J. Wong, and JeongKyu Lee. Informative Frame Filtering in Endoscopy Videos. Proc. of SPIE Medical Imaging, San Diego, CA, SPIE. pp. 291-302, 2005.

Wang, Y., Miner, A., Wong, J. and Uppuluri, P. Improving Feature Selection in Anamaly Intrusion Detection using Specification. ICDCIT Workshop on Data Mining and its Applications. Also appeared in Lecture Notes in Computer Science, Volume 3347 / 2004, Springer., India. pp. 468, 2004.

Y. Cao, D. Li, W Tavanapong, J. Wong, J. Oh and P. de Groen. Parsing and Browsing Tools for Colonoscopy Videos. ACM Multimedia 2004, New York, NY, ACM. pp. 844-851, 2004.

Ben D. Uphoff and Johnny S. Wong. Securing network traffic and intrusion detection data. 1st NSF/NSA/AFRL Sponsored Workshop on Secure Knowledge Management (SKM2004), Buffalo, New York, 2004.

N. Stakhanova, S. Ferrero, J. Wong and Y. Cai. A reputation-based trust management in peer-to-peer network systems. 2004 International Workshop on Security in Parallel and Distributed Systems, San Francisco, CA, ISCA. pp. 510-515, 2004.

Zhang, M., Wong, J. Tavanapong, W., Oh, J. and de Groen, P. Media Uploading Systems with Hard Deadlines. IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA 2004), Kauai, Hawaii, IASTED. pp. 305-310, 2004.

Wang, Y., Wong, J. and Miner, A. Novel machine learning techniques for intrusion detection. AMCIS 2004, New York City, New York. pp. 4433-4440, 2004.

Y. Cao, W. Tavanapong, K. Kim, J. Wong, J. Oh, and P. C. de Groen. A Framework for Parsing Colonoscopy Videos for Semantic Units. Proc. of IEEE ICME, Taipei, Taiwan, IEEE. pp. 216-218, 2004.

Ying Cai, Zhan Chen, Wallapak Tavanapong, Johnny Wong. Providing Scalable On-Demand Video Services for Heterogeneous Receivers. IEEE Int’l Conference on Multimedia and Expo (ICME’04), Taipei, Taiwan, IEEE. pp. 316-317, 2004.

Yu Cao, Wallapak Tavanapong, Dalei Li, JungHwan Oh, Piet C. de Gron, Johnny Wong. A Visual Model Approach for Parsing Colonoscopy Videos. Proc. of Int'l Conf. on Image and Video Retrieval, Dublin, Ireland. pp. 21-23, 2004.

Wang, Y., Wong, J. and Miner, A. Anomaly intrusion detection using one class SVM. IEEE Information Assurance Workshop 2004, West Point, New York, IEEE. pp. 358-364, 2004.

Piet C. de Groen, JungHwan Oh, Wallapak Tavanapong, Johnny S. Wong. Computer-generated, Digital, Multimedia Database for Colonoscopy. Digestive Disease Week 2004, New Orleans, USA, 2004.

A. Natarajan, Ying Cai, and J. Wong. Improving Server Broadcast Efficiency through Better Utilization of Client Receiving Bandwidth. 23rd IEEE Int’l Performance, Computing, and Communication Conference (IPCCC’04), Phoenix, AZ, IEEE. pp. 1-8, 2004.

Wanida Putthividhya, Wallapak Tavanapong, Min Tran, and Johnny Wong. Core Selection with End-to-End QoS Support. ACM Symposium on Applied Computing (SAC 2004), Nicosia, Cyprus, ACM, 2004.

Ying Cai, Zhan Chen and Johnny Wong. Leveraging Broadband Access for True On-Demand Delivery of Internet Videos. SAINT 2004, Tokyo Japan, IEEE. pp. 171-177, 2004.

Minh Tran, Wanida Putthividhya, Wallapak Tavanapong and Johnny Wong. A Case for a Generalized Periodic Broadcast Server: Design, Analysis, and Implementation. SAINT 2004, Tokyo Japan, IEEE. pp. 127-134, 2004.

JungHwan Oh, Sae Hwang, Wallapak Tavanapong, Piet C. de Groen and Johnny Wong. Blurry frame detection and shot segmentation in colonoscopy videos. IS&T/SPIE Symposium on Electronic Imaging 2004, San Jose, CA, USA, SPIE. pp. 531-542, 2004.

Wanida Putthividhya, Wallapak Tavanapong, Minh Tran, Johnny Wong. Distributed Core Selection with QoS Support. ICC 2004, Paris France, IEEE, 2003.

JungHwan Oh, Wallapak Tavanapong, Piet C. de Groen, Sae Hwang, Yu Cao, Kihwan Kim, and Johnny Wong. Hierarchical Segmentations and Blurry Frame Detection for Colonoscopy Videos. IEEE Transaction of Medical Imaging, Submitted, 2003.

Chen, Z., Ding, J., Zhang, M., Tavanapong, W., and Wong, J. Hierarchical Clustering-Merging in Multidimensional Indexing Structures. International Conference on Image and Video Retrieval, Urbana, IL, USA, SPIE. pp. 81-90, 2003.

Helmer, G., Wong, J., Honavar, V., Miller , L. and Wang, Y. Lightweight Agents for Intrusion Detection. Journal of Systems and Software, Elsevier. Vol. 67. No. 1. pp. 109-122, 2003.

Laird, S., Wong, J., Schaller, W., Erickson, B. and de Groen, P. Design and Implementation of an Internet-based Medical Image Viewing System. Journal of Systems and Software, Elsevier. Vol. 66. No. 1. pp. 167-181, 2003.

Helmer, G., Wong, J., Slagell, M., Honavar, V., Miller, L. and Lutz, R. A Software Fault Tree Approach to Requirement Analysis of an Intrusion Detection System. Requirement Engineering Journal, Springer. Vol. 7. No. 4. pp. 207-220, 2002.

Keller, D., Schaller W. J., Wong, J., de Groen, P. C. World-Wide Web-Based Graphical User Interfaces for Laboratory Data. Journal of Methods of Information in Medicine, Schattauer GmbH. Vol. 41. No. 5. pp. 411-413, 2002.

Helmer, G., Wong, J., Honavar, V. and Miller , L. Automated discovery of concise predictive rules for intrusion detection. The Journal of Systems and Software, Elsevier. Vol. 60. No. 3. pp. 165-175, 2002.

D. Keller, J. Wong, W. J. Schaller, P. C. de Groen. World-Wide Web-Based Graphical User Interfaces for Laboratory Data. Journal of Methods of Information in Medicine. Vol. 41. pp. 411-413, 2002.

Book Chapters

Ryan Babbitt, Johjnny Wong, Simanta Mitra and Carl Chang. Privacy Management in Smart Homes: Design and Analysis. In: Promoting Independence for Older Persons with Disabilities: Assistive Technology Research Series (Ed. William Mann and Abdelsalam Helal), IOS Press 2006.

R. Babbitt, D. Lu, C. Chang, and J. Wong. Requirements Engineering for Smart Homes to Support Successful Aging, Disability, and Independence. In: European Academy of Sciences Annals 2005 (Ed. European Academy of Sciences) 2006.

Honavar, V., Miller, L., and Wong, J. Distributed Knowledge Networks. In: Unifying Themes in Complex Systems (Ed. Bar-Yam, Y. and Minai, A.), Perseus Books 2004.

Pai, P., Miller , L., Honavar, V., Wong, J. Supporting Organizational Knowledge Management with Agents. In: Knowledge Mapping and Management (Ed. Don White), IRM Press 2003.