Accessing Diverse Geo-Referenced Data Sources with the SAND Spatial DBMS

The Internet has become the most frequently accessed medium for obtaining various types of data. In particular, government agencies, academic institutions, and private enterprises have published gigabytes of geo-referenced data on the Web. However, to obtain geo-referenced data from the Web successfully, systems must be designed to be capable of understanding the data sets published in different data formats. Also, even if the data sets are available in a simple known format, they often have poorly defined structures. With these issues in mind, we have developed an Internet-enabled data collection and conversion utility that interfaces with our prototype spatial database system, SAND. Using this utility, data can be retrieved from many different sources on the Web and converted into a format understandable by the SAND spatial database management system. Our collection and conversion utility is able to import the most popular data formats; namely, ESRI Shapefiles, Microsoft Excel files...

• Type: Conference
• Year: 2003
• Where: DGO
• Authors: Jagan Sankaranarayanan, Egemen Tanin, Hanan Samet, Frantisek Brabec
• Keywords: Data Formats, Data Set, DGO 2003, DGO 2007, Geo-referenced Data