| 摘要 |
<p>Determining a desired listing begins by creating a definition for each listing without regard to predefined boundaries, such as political boundaries. The coverage area may be defined by default depending upon a categorization of its listing. The coverage area may also be defined as a selectable area depending upon selection criteria, such as payment of a fee. A reference point may be determined based upon information provided about the reference point. The location of the reference point may be determined from the information. A search region is typically selected based upon a proximity of the search region to the reference point. Coverage areas intersecting the search region are then found. These intersecting coverage areas are typically ranked into a ranked order. The ranked order may be based upon the amount of intersecting area for each intersecting coverage area or may be based upon the proximity of the intersecting coverage area to the reference point. A listing is identified as the desired listing typically based upon the ranked order of the intersecting coverage areas. Finally, an identification of the desired listing may be distributed.</p> |
