Category Archives: Geographic

Posts about information that represents locations on the Earth.

Personal Geotagging: Data wrangling

I recently learned that the process of cleaning datasets so that they can really be used is called “data wrangling”. At first, I thought that the main data wrangling task in personal geotagging was going to be cleaning the GPS … Continue reading

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Personal geotagging: note 1

The common item that lets you find a photo’s location in a GPS track is the time it was taken. In database terminology, time is the join column. Since I’m starting with photos that are already timestamped, I want to … Continue reading

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Personal data: geotagging photos

I have over 50,000 photos I’d like to tag with the locations they were taken. In a perfect world, this would be a relatively simple matter of looking up each photo’s creation date and time, finding that date and time … Continue reading

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OpenStreetMap constructs maps from GPS tracks!

Sources and uses of digital information are in-scope for this blog, and a great example just showed up in my RSS reader today. OpenStreetMap is a wiki-like project to build a world map using contributed GPS tracks [OpenGeoData pointed me … Continue reading

Posted in Areas of application, Geographic, Information Philosophy, Information usage patterns | Leave a comment