{"action":"created","issue":{"url":"https://api.github.com/repos/Project-OSRM/osrm-backend/issues/1407","labels_url":"https://api.github.com/repos/Project-OSRM/osrm-backend/issues/1407/labels{/name}","comments_url":"https://api.github.com/repos/Project-OSRM/osrm-backend/issues/1407/comments","events_url":"https://api.github.com/repos/Project-OSRM/osrm-backend/issues/1407/events","html_url":"https://github.com/Project-OSRM/osrm-backend/pull/1407","id":59573684,"number":1407,"title":"Map Matching","user":{"login":"TheMarex","id":606968,"avatar_url":"https://avatars.githubusercontent.com/u/606968?v=3","gravatar_id":"","url":"https://api.github.com/users/TheMarex","html_url":"https://github.com/TheMarex","followers_url":"https://api.github.com/users/TheMarex/followers","following_url":"https://api.github.com/users/TheMarex/following{/other_user}","gists_url":"https://api.github.com/users/TheMarex/gists{/gist_id}","starred_url":"https://api.github.com/users/TheMarex/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/TheMarex/subscriptions","organizations_url":"https://api.github.com/users/TheMarex/orgs","repos_url":"https://api.github.com/users/TheMarex/repos","events_url":"https://api.github.com/users/TheMarex/events{/privacy}","received_events_url":"https://api.github.com/users/TheMarex/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":13,"created_at":"2015-03-03T00:02:24Z","updated_at":"2015-03-10T13:08:26Z","closed_at":"2015-03-10T13:08:11Z","pull_request":{"url":"https://api.github.com/repos/Project-OSRM/osrm-backend/pulls/1407","html_url":"https://github.com/Project-OSRM/osrm-backend/pull/1407","diff_url":"https://github.com/Project-OSRM/osrm-backend/pull/1407.diff","patch_url":"https://github.com/Project-OSRM/osrm-backend/pull/1407.patch"},"body":"Implements map matching based on ```\"Hidden Markov Map Matching Through Noise and Sparseness\"; P. Newson and J. Krumm; 2009; ACM```.\r\nThis can be used to match GPS traces to a road network. Note: Currently this works best with traces that have a sample frequency of about 10 samples/minute. You should make sure to remove blobs (accumulated GPS points, when standing still) and reduce the sample to 10 samples/minute.\r\nThe ```gps_precision``` and ```matching_beta``` parameters can be tuned to adapt the matching to your dataset.\r\n\r\nAPI additions:\r\n\r\n```\r\nt = UNIX_TIMESTAMP\r\ngps_precision = GPS_STANDART_DEVIATION (in meters, default: -1 which means auto)\r\nmatching_beta = DOUBLE  (see paper for details, default: -1 which means auto)\r\nclassify = BOOL (default: false enables computing confidence for the trace)\r\n```\r\n\r\nUsage:\r\n\r\n```\r\n/match?loc=lat1,lon1&t=0&loc=lat2,lon2&t=7&loc=lat3,lon3&t=14&geometry=false&classify=true\r\n```\r\n\r\nrouted parameter additions:\r\n\r\n```\r\n--max-locations-map-matching (default: -1 which means disabled)\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/Project-OSRM/osrm-backend/issues/comments/78049041","html_url":"https://github.com/Project-OSRM/osrm-backend/pull/1407#issuecomment-78049041","issue_url":"https://api.github.com/repos/Project-OSRM/osrm-backend/issues/1407","id":78049041,"user":{"login":"DennisOSRM","id":1067895,"avatar_url":"https://avatars.githubusercontent.com/u/1067895?v=3","gravatar_id":"","url":"https://api.github.com/users/DennisOSRM","html_url":"https://github.com/DennisOSRM","followers_url":"https://api.github.com/users/DennisOSRM/followers","following_url":"https://api.github.com/users/DennisOSRM/following{/other_user}","gists_url":"https://api.github.com/users/DennisOSRM/gists{/gist_id}","starred_url":"https://api.github.com/users/DennisOSRM/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DennisOSRM/subscriptions","organizations_url":"https://api.github.com/users/DennisOSRM/orgs","repos_url":"https://api.github.com/users/DennisOSRM/repos","events_url":"https://api.github.com/users/DennisOSRM/events{/privacy}","received_events_url":"https://api.github.com/users/DennisOSRM/received_events","type":"User","site_admin":false},"created_at":"2015-03-10T13:08:26Z","updated_at":"2015-03-10T13:08:26Z","body":"Great work!"}}