I am a faculty member of the Department of Geography
at National University of Singapore and is part of the Tropical Environmental Change research group.
My research interests fall under
the general theme of geographic information science with focus on formal
spatial ontology, qualitative description of spatial features,
semantic similarity within and across languages, volunteer geographic
information, and cyber-infrastructure for spatiotemporal applications. I believe all
these themes are important to improve current geospatial information
technologies, both in terms of the quality of spatial data and
the efficiency of geocomputation.
I am also interested in applications of geographic information
systems, global positioning systems, and remote sensing as spatial decision support systems. Specific
topic of interest include the modeling land use/land cover changes, identifying correlations between environmental determinants and public health
issues in Asia, and the investigating accessibility and travel behaviors of people in built environment.