MANAGING MODERATION OF USER-CONTRIBUTED EDITS

A geographic information system allows users to access a map database and to contribute map data to the database. Proposed edits to the map are queued for review by a reviewer users. Reviewing users can subscribe to review edits in regions and/or to types of map features. Reviewers can share their subscriptions with other reviewers. In the moderation queue, the proposed edits are ranked and those edits proposed by users who also review are optionally ranked higher and thus reviewed sooner than edits proposed by users who do not review or review less. The history of reviewers is analyzed to identify those with expertise in a particular region and/or type of map feature. One embodiment of the system includes a database containing geographic data, an inference module, a spam prevention module, a reviewing module and a publishing module.