References
  	         
      On this page are the names of colleagues, supervisors, and subordinates 
who have written letters of reference for me. The references are    divided 
 into academic and industry, since I have worked in both arenas. The  industry 
letters of reference are viewable directly from this page; signed    originals 
are available upon request. The academic letters of reference are confidential, 
available only by request.  
      
  	         
      Academic References
       Prof. Rupert Wegerif 
    Collaborator on the  ARGUNAUT and Metafora projects; Currently Professor, The Faculty of Education, University of Cambridge, England 
       Prof. Baruch Schwarz 
    Collaborator on the  ARGUNAUT and Metafora projects;  Currently Professor, School of Education, the Hebrew University of Jerusalem, Israel 
       Dr. Maarten De Laat 
    Collaborator on the  ARGUNAUT project; Currently Professor and Director of Learning, Teaching and Curriculum, the University of Wollongong, Australia 
       Prof. Dr. Niels Pinkwart 
    Collaborator on the  LASAD project and on the earlier CoChemEx project; Currently Professor, Department of Informatics, Humboltdt University of Berlin, Germany 
       Prof. Dr. Nikol Rummel 
    Collaborator on several Pittsburgh Science of Learning (PSLC) projects; Currently Professor of Educational Psychology, Ruhr-Universität Bochum, Germany 
      
      Prof. Kevin Ashley 
    Ph.D. advisor; Currently Professor of Intelligent    Systems, Senior 
Scientist, University of Pittsburgh 
               
      Prof. Norman Sadeh
   
    Colleague and former supervisor at Carnegie Mellon University; Currently Professor Carnegie Mellon University
 
               
      Prof. Manuela 
Veloso
   Member of my Ph.D. committee; Currently Herbert A. Simon Professor 
of Computer Science, Carnegie Mellon University and on leave at J.P. Morgan AI Research 
               
      Retired Prof. Bruce Buchanan
   Member of my Ph.D. committee; Past President of AAAI, Inventor 
of the Mycin program, Retired 
          
      Dr. Stephen F. Smith
   Former supervisor at the Robotics Institute, Carnegie Mellon
University;   Currently Research Professor, Robotics Institute,
Carnegie Mellon University
          
      Industry References
          
      Philip Hayes, 
Ph.D.
    Supervisor at OpenWebs Corporation and Carnegie Group, Inc.; Formerly 
Chief Technology Officer of OpenWebs; Currently, Senior VP, Software Engineering, Dynamix 
  View letter [ html | pdf ] 
		            
John Fischer
    Colleague at CarParts Technologies and OpenWebs Corporation; Currently 
VP of Tire Management Solutions Markets at CarParts Technologies
  View letter [ html | pdf ]
         
Daniel Garcia
    Subordinate at CarParts Technologies and OpenWebs Corporation
    View letter [ html | pdf ]
         
Yilmaz Kara
    Subordinate at CarParts Technologies and OpenWebs Corporation
    View letter [ html | pdf ]   
       
  Linda Schmandt
    Colleague at OpenWebs Corporation and Carnegie Group, Inc.; Currently 
Sr. Project Manager/Requirements Analyst at  Carnegie Learning 
    View letter [ html | pdf ]
         
      Jeff Kaminski
    Supervisor at IBM Transarc; Currently an Advisory Software Engineer, IBM 
      
    View letter [ html | pdf ]
         
 Debra Logan
    Colleague and Supervisor at Carnegie Group, Inc.; Currently VP, Distinguished 
VP Analyst with the Gartner Group 
    View letter [ html | pdf ]
         
      Gary Kahn, Ph.D.
   Supervisor at Carnegie Group, Inc.; Currently Independent Consultant
  View letter [ html | pdf ]