Abstract: To generate address components for a selected map feature, all polygonal map features containing or near the location of a selected map feature are identified. The error bounds of each identified polygon are modeled based on the quality of the boundary of the polygon. Then, the error bounds of the polygon are compared to the location of the selected map feature to determine the strength of the match. The address components corresponding to the identified polygons are suggested to be components of the address of the selected map feature based on the strength of the matches. In another embodiment, a risk of inaccuracy of a combination of address components in an edited map feature is determined from comparison to other map data and can be adjusted based in part on the magnitude of an inconsistency between address components.

Abstract: A semi-automatic generation of addresses of map features is performed. A geographic information system includes one or more databases comprising map features. Each map feature is indexed by location, and may include an address. Each address is composed of one or more address components, such as street, city, state, country, zip code, and the like. To generate address components for a selected map feature, all polygonal map features containing or near the location of a selected map feature are identified. The strength of the matches between the location of the selected map feature and the identified polygonal features is determined. The address components corresponding to the identified polygonal features are automatically compiled and suggested to the user to be components of the address of the selected map feature based on the strength of the matches.

Abstract: Map curators perform activities related to digital maps provided. These activities include adding and/or modifying information about map features displayed on the digital maps. Edits to these map features are included in a pulse stream which is formatted so as to be visually appealing to other curators who view the edits in the pulse stream. The pulse stream is distributed to other curators or to users have yet to provide edits to the digital maps. The pulse stream of edits informs these users of the activities that have transpired with respect to the digital maps in hopes to inspire them to further contribute additional edits to the digital maps.