System and method for large scale crowdsourcing of map data cleanup and correction

Patent metadata

Field	Value
Publication number	US-11294981-B2
Application number	US-201916507012-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Feb 19, 2013
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A system for large-scale crowd sourcing of map data cleanup and correction, comprising an application server that generates image data, sends image data to a user device, receives tagging data provided by the device user, and provides tags to a crowdsourced search and locate server based on tagging data from a user device, a crowdsourced search and locate server that receives tags from an application server, computes agreement and disagreement values and performs expectation-maximization analysis, and a map data server that stores and provides map data, and a method for estimating location and quality of a set of geolocation data.

First claim

What is claimed is:

1. A system for retrieving and geolocating a plurality of social media content, comprising:
a geolocation software module comprising at least a plurality of programming instructions stored in a memory and operating on a processor of a computing device and configured to perform at least a geolocation operation, the geolocation operation comprising at least the following steps:
receiving social media content from a social media provider;
extracting any available metadata information present in or associated with a social media content posting;
extracting any embedded location data present in or associated with the social media content posting;
identifying an author of the social media content posting;
determining if the metadata storage contains location-related data about the author, if one was successfully identified;
determining if location data pertaining to a physical location of the author at the time of posting of the social media content posting is available;
identifying any known place names present in or associated with the social media content posting;
if multiple locations are identified, disambiguating the locations to determine a most likely location using a crowdsourced location disambiguation process; and
geotagging the social media content posting and storing the resulting geotagged social media content posting in the database, wherein geotagging comprises associating location-based information with a respective social media content posting.

2. A method for retrieving and geolocating a plurality of social media content, comprising the steps of:
receiving social media content from a social media provider;
extracting any available metadata information present in or associated with the social media content posting;
extracting any embedded location data present in or associated with the social media content posting;
identifying an author of the social media content posting;
determining if the metadata storage contains location-related data about the author, if one was successfully identified;
determining if location data pertaining to a physical location of the author at the time of posting of the social media content posting is available;
identifying any known place names present in or associated with the social media content posting;
if multiple locations are identified, disambiguating the locations to determine a most likely location using a crowdsourced location disambiguation process;
geotagging the social media content posting and storing the resulting geotagged social media content posting in the metadata storage, wherein geotagging comprises associating location-based information with a respective social media content posting.

Assignees

• Digitalglobe Inc

Inventors

• Har-Noy Shay
• Barrington Luke
• Ricklin Nathan

Classifications

• G06Q10/40

  Business processes related to social networking or social networking services · CPC title

• G06F16/587

  using geographical or spatial information, e.g. location · CPC title

• G06F16/5866

  using information manually generated, e.g. tags, keywords, comments, manually generated location and time information · CPC title

• G06F16/9537 Primary

  Spatial or temporal dependent retrieval, e.g. spatiotemporal queries · CPC title

• G06F16/29

  Geographical information databases · CPC title