Quality-Driven Approximate Methods for Integrating GIS Data Ramaswamy Hariharan, Michal Shmueli-Scheuer, Chen Li, and Sharad Mehrotra   View Paper (PDF)   Return to Session 3: Data Integration and Data Mining Abstract GIS data distributed in local, state, federal, and private data clearinghouses are being made accessible through the efforts of organizations such as Federal Geographic Data Committee (FGDC) and GeoData.gov. Many database applications, such as disaster management, transportation, and national infrastructure protection, need to access GIS information from such various data sources. In this paper we study how to answer keyword-based spatial queries approximately using information from ©2006 Association for Computing Machinery