Guoray Cai, PhD

Dr. Guoray Cai is an associate professor of information sciences and technology at Penn State, with affiliate appointments in geography as well as in computer science and engineering.

He is the founding director of the Spatial Information and Intelligence Laboratory, which is housed in IST. He also is a member of the GeoVISTA Center and the Center for Human-Computer Interaction. Dr. Cai conducts research in the areas of information retrieval, geographical information science, human-computer interaction and communication, and visual mediation of collaborative work.

Chao-Hsien Chu, PhD

Dr. Chao-Hsien Chu's research includes information and cyber security (particularly wireless security, intrusion detection, security and risk management, and cyber forensics), intelligent technologies (expert systems, fuzzy modeling, neural networks, and genetic algorithms) and their applications in communication network design, data mining (e.g., bioinformatics and privacy preserving processing) and manufacturing systems design, supply chain management and integration, and information technology for manufacturing/operations management.

Chu has taught networking and telecommunications, computer and cyber forensics, wireless security, IT and systems integration, intelligent information processing; decision support systems (DSS); object-oriented systems analysis and design; enterprise resources planning (ERP); process reengineering; competitive manufacturing management, strategic quality management, and many others.

David Hall

David Hall's research has covered a wide variety of areas, including stellar structures, celestial mechanics, digital signal processing, software engineering, and automated reasoning. Multisensor data fusion is a particular focus for Dr. Hall, and his work in this area is recognized both nationally and internationally. Dr. Hall has conducted and led research projects for such sponsors as NASA, the Defense Advanced Research Projects Agency, the U.S. Naval Research Laboratory, the Office of Naval Research, the U.S. Air Force's Rome Air Development Center, the U.S. Department of Defense, and private aerospace corporations. Dr. Hall is the author of more than 175 papers, reports, books, and book chapters, and he has delivered numerous lectures on research, research management, and artificial intelligence.

Jia Li

Jia Li's research interests include statistical learning, data mining, image retrieval, image annotation, signal/image processing, bioinformatics, and information theory. Her pioneer work on developing the theory and computational implementations of the 2-D multiresolution hidden Markov models (2-D MHMM) has led to applications in large-scale automated image annotation/classification for art, satellite, and photographic images. Collaborating with biologists, Dr. Li developed HMM–based techniques to assess the significance of interspecies matches when the evolutionary rate varies. She has developed several image classification and image retrieval systems, including two widely recognized ones: SIMPLIcity and ALIP. The SIMPLIcity system has been sought after and obtained by researchers from more than seventy institutions.

Peng Liu

Peng Liu's research interests include systems security and survivability, database systems, distributed systems, and peer-to-peer systems in the contexts of e-commerce, digital health care, digital government, command and control, digital infrastructure systems, and web and wireless applications. Dr. Liu is the co-author of the book Trusted Recovery and Defensive Information Warfare (Kluwer International Series on Advances in Information Security). Before joining Penn State, he was an assistant professor at the University of Maryland, Baltimore County.

James Wang

James Z. Wang is an associate professor at Penn State, with appointments in the College of Information Sciences and Technology, the Department of Computer Science and Engineering, and the Integrative Biosciences program (Option on Bioinformatics and Genomics, the Huck Institutes of the Life Sciences). He is also the vice director of the Intelligent Information Systems Research Laboratory. He has been a recipient of an NSF Career award and the endowed PNC Technologies Career Development Professorship provided by the PNC Foundation. He has served as the lead guest editor of IEEE Transactions on Pattern Analysis and Machine Intelligence special issue on Real-World Image Annotation and Retrieval; the chair of the Association for Computing Ministry's (ACM) Multimedia Information Retrieval MIR 2006 and MIR 2007; and an invited speaker at more than seventy institutions. In 2007–08, he was a visiting professor at the Robotics Institute of the School of Computer Science, Carnegie Mellon University. He has held visiting positions at IBM Almaden Research Center, SRI International, NEC Research Institute, and Academia Sinica. Dr. Wang received a summa cum laude bachelor's degree in mathematics and computer science from the University of Minnesota, a master's degree in mathematics, a master's degree in computer science, and a doctorate, all from Stanford University. He is a senior member of the IEEE and the ACM.