Specialties: Semantic Web technologies (RDF, OWL, SWRL, SPARQL,Reasoner)
Geospatial Semantic Web
OpenGIS standards specs and implementations (GML,WCS,WMS,WAS,WPS,WFS,IA,Catalog)
XML technology
ISO TC 211 specifications
Web Services technologies
XML Technologies
Digital Photogrammetry (Socet Set, Softplotter, Orthengine, Z/I Imaging).
Remote Sensing
Image Processing,Computer vision
GIS (PCI, ERDAS, ERMAPPER, ESRI, MapInfo)
Computer Graphics
Java, C++, C, Python, LISP, Prolog, Pascal
GPU programming