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A system design for implementing advanced feature descriptions for a map knowledge base

January 30, 2020

A prototype system to explore Linked Data that semantically integrates geospatial data in various formats from different publication sources with data from The National Map of the U.S. Geological Survey is presented. The focus is on accessing advanced feature descriptions for data from The National Map with data coreferenced from other sources. The prototype uses Geoserver to access The National Map data, which are converted to Resource Description Framework triples using Karma and stored in the Marmotta triplestore. Marmotta uses a Postgres relational database as a backend for the project and queries to the Marmotta triplestore are converted to structured query language and executed by Postgres. Triples retrieved are linked with same_as relationships to external data sources. The links to these sources provide additional attributes and relationships of the data from The National Map. Visualization of the results is provided using Leaflet and workflows for all parts of the system are defined. A use case for the system is provided to access structures and names information from The National Map for the Washington, D.C., area and link these to Geonames data, with visualization of the graphical and tabular results.

Publication Year 2020
Title A system design for implementing advanced feature descriptions for a map knowledge base
DOI 10.3133/sir20195148
Authors Matthew Wagner, Dalia E. Varanka, E. Lynn Usery
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Scientific Investigations Report
Series Number 2019-5148
Index ID sir20195148
Record Source USGS Publications Warehouse
USGS Organization Center for Geospatial Information Science (CEGIS)