Searching for geospatial government-produced data

ABSTRACT

This poster investigates problems and solutions for searching the Web for geospatial data produced by various levels of government. Currently, geospatial data to meet particular needs are difficult to find. We suggest using Internet DBMS and Semantic Web technology to improve search techniques over metadata by using context-oriented search phrases, full query expressions, and semantic mappings. Furthermore, automatic searching for data is possible using an Internet DBMS that ranges over Web published metadata and consults semantic mapping expressions of models and terms.

REFERENCES

• 1: Geospatial One-Stop, http://www.geodata.gov.
• 2: Naughton, J., DeWitt, D., Maier, D., and others. The Niagara Internet query system. IEEE Data Engineering Bulletin, Vol. 24, No. 2, 2001, 27--33.
• 3: Nebert, D. Technical baseline for accessing a virtual global SDI. Presented at GSDI-7, Jan. 29-Feb. 6, 2004, Bangalore, India, http://www.fgdc.gov/publications/papers/attloves.pdf.
• 4: Onsrud, H., Camara, G., Campbell, J., and Chakravarthy, N. Public commons of geographic data: research and development challenges. In Proceedings of the third international conference on Geographic Information Science (Adelphi, MD, USA October 20--23, 2004). Springer, LNCS 3234, 223--238.
• 5: Reitsma, F. Spatial data accessibility and the semantic Web. http://gest.umbc.edu/student_opp/2003_gssp_reports/Femke Reistsma.pdf.
• 6: Shin, S. and Landis, E. Enabling data interoperability through metadata. Presented at NSF, May 23--27, 2004, http://www.fgdc.gov/publications/papers/attyszd.pdf.
• 7: Wiegand, N. Querying metadata over the web to locate geospatial data. In Proceedings of the third international conference on Geographic Information Science (Adelphi, MD, USA October 20--23, 2004). NCGIA, 224--226.

INDEX TERMS

Primary Classification:
  H. Information Systems
  H.2 DATABASE MANAGEMENT
      H.2.5 Heterogeneous Databases

Additional Classification:
  I. Computing Methodologies
  I.2 ARTIFICIAL INTELLIGENCE
      I.2.4 Knowledge Representation Formalisms and Methods
          Subjects: Representation languages

General Terms:
Design, Human Factors, Management, Standardization

Keywords:
DBMS, geospatial, internet technology, semantic and model heterogeneity, semantic web