He is also a Visiting Computer Scientist at the USC Information Sciences Institute. Yao-Yi Chiang received his Ph.D. degree in Computer Science from University of Southern California in 2010; his Bachelor degree in Information Management from National Taiwan University in 2000. His general area of research is information integration, with a focus on acquiring, modeling, fusion, and visualization of geographic data from heterogeneous sources. In particular, Dr. Chiang is an expert in digital map processing and geospatial information system (GIS). He has published a number of articles on automatic techniques for geospatial data extraction and integration. Prior to USC, Dr. Chiang worked as a research scientist for Geosemble Technologies, which was founded, based on a patent on geospatial data fusion techniques and he was a co-inventor.