WebProNews

Tag: Geotagging

  • Twitter Turns Tweets into Crazy Elevation Maps

    Twitter has just unveiled an awesome new data visualization. The premise is simple – they took billions of geotagged tweets and turned them into an elevation map. But the execution is beautiful.

    Right now, there are three cities available to explore: San Francisco, New York City, and Istanbul. There are also eight different styles of elevation maps that you can use to view the data: Heat, Fill, Watermark, Clear, Contour, Terrain, Grid, and Dark.

    “The mountain ranges you see here are not natural geography but the landscape of Tweets — billions of them, visualized across cities. The peaks represent the places most Tweets are sent from, the troughs the fewest. Explore New York closely and you can pick out the Brooklyn and the Queensboro bridge — even the Staten Island ferry,” says Twitter.

    Every map is interactive, and can be toggled from low to high quality and elevation. Check it out here.

    This isn’t the first time that Twitter has created a stunning visualization with geotagged tweets. Do yourself a favor and check those out too.

  • Twitter’s New Geotagged Tweet Visualizations Are Incredible

    Twitter’s Visual Insights team has gone and done something awesome. They’ve created some maps of a bunch of major cities, countries, and continents using geotagged tweets – using only geotagged tweets.

    Everything you see in the maps below are tweets – every dot is a tweet and the color of the dot is the tweet count. Twitter says that these maps make use of every single geotagged tweet since 2009 (billions and billions of tweets).

    What you’ll notice is that you can totally recognize these cities and other areas of the world based solely on boundaries created by tweets.

    Look at Europe, for instance:

    Here are some more:

    New York City

    Moscow

    Tokyo

    There are a bunch more over on Twitter’s Flickr page. I’ve intentionally failed to disclose the identity of the location mapped out in the lead image. I’ll let you see if you can figure it out.

  • ‘Geography of Hate’ Project Shows Racist, Homophobic Tweet Concentrations Across the U.S.

    If you’ve spent any time at all on Twitter, you know that it can be a great place for a variety of things – real-time news, celeb-watching, comedy, and the list goes on and on. But you also know that Twitter is full of the kind of homophobic and racist language that can make you physically recoil. Now, a group of researchers have developed an interactive map of all the hate speech that Americans are pumping out on a daily basis.

    The map was created by geography students at California’s Humboldt State University, the same group of people who brought us the post-election Twitter racism map back in November. Back then, they looked at racist tweets the focused on President Obama’s reelection and found that Mississippi and Alabama were the two hotbeds for such activity.

    “Rather than focusing just on hate directed towards a single individual at a single point in time, we wanted to analyze a broader swath of discriminatory speech in social media, including the usage of racist, homophobic and ableist slurs,” say the researchers.

    For instance, here’s the map of generally “homophobic” tweets, which are determined by the use of words like “dyke,” “fag,” “homo,” and “queer.”

    And here’s the map of racist tweets – those containing the words “nigger,” “chink,” “wetback,” “gook,” or “spick”:

    Of course, analysis like this is never going to be 100% accurate. Keyword analysis has inherent issues. For instance, the word “queer” is not always used in a derogatory, hate-filled manner. People could be tweeting out the word “fag” in another context, such as bemoaning its usage.

    On the other hand, it’s hard to justify many used of words like “wetback” on Twitter. Sure, it’s not completely solid analysis, but it’s pretty close. You have to to imagine that the majority of people tweeting about fags, dykes, niggers, and chinks are doing so in a hateful manner.

    But to completely cut out this sort of uncertainty, the researchers manually read and coded each tweets to judge the sentiment, “in order to address one of the earlier criticisms of our map of racism directed at Obama.” This way, they could know, for sure, whether a tweet that contained the word “queer” was actually posted in a hateful context.

    Using DOLLY to search for all geotagged tweets in North America between June 2012 and April 2013, we discovered 41,306 tweets containing the word ‘nigger’, 95,123 referenced ‘homo’, among other terms. In order to address one of the earlier criticisms of our map of racism directed at Obama, students at Humboldt State manually read and coded the sentiment of each tweet to determine if the given word was used in a positive, negative or neutral manner. This allowed us to avoid using any algorithmic sentiment analysis or natural language processing, as many algorithms would have simply classified a tweet as ‘negative’ when the word was used in a neutral or positive way. For example the phrase ‘dyke’, while often negative when referring to an individual person, was also used in positive ways (e.g. “dykes on bikes #SFPride”). The students were able to discern which were negative, neutral, or positive. Only those tweets used in an explicitly negative way are included in the map.

    You can check out the full interactive map here, where you can zoom in to see specific concentrations of twitter hate speech.

    [Floating Sheep via MIT Technology Review]

  • Friendly Reminder: Watch Out for Geotagged Tweets Mentioning “Home”

    People give out a lot of personal information via social media, many would say too much information. Much of it is voluntary, and the user knows they’re putting themselves out there. Filling out your profile information, tagging yourself in a photo on Facebook, or checking-in to Foursquare are all example of how people knowingly divulge personal data on the web.

    But sometimes, you may be giving people a lot of information without even realizing it. And it could be as simply as mentioning a single word within a tweet.

    WeKnowYourHouse.com is billed as a “privacy experiment” that pulls every tweet that mentions the word “home” and is also geotagged. I’m sure you can guess why these types of tweets could be a bit dangerous. Let’s say just tweeted that you arrived home from a vacation and you’ve enabled location on your tweets. From those two simple factors, anyone in the world could pinpoint the exact location of your residence on a map.

    Think about it: It’s a stalker’s wet dream.

    The site owners explain how they do it, and it’s frighteningly simple:

    This website uses Twitter Search API to collect information, for example if you look at http://search.twitter.com/search.json?q=at+home you’ll see how Twitter give away all the recent posts that match the search criteria in JSON format. We simply get the ones that contain location data (latitude and longitude) and use a geocoder to turn them into human readable addresses. Google Street View also accepts latitude and longitude into its web APIs, so we can actually see the places that people are when they tweet.

    For the “experiment,” they star out the user names and locations, but you can click on any entry and see a Google street view shot of where they think you live. They say that all of the entires are expunged after an hour to protect privacy, but that’s just enough time for you to see how easy it is for anyone to snag the location of your home.

    We know your house

    Of course, having the location of your house known on the interwebs isn’t necessarily a bad thing, and there are plenty of other ways that a criminal or someone else could locate you. But if you’re someone with a history of online stalkers, it might be better to leave the “So glad to be home!” out of your tweets.

    [h/t Sophos Naked Security]

  • Flickr Levels Up With Nokia’s Sexy Maps & Satellite Images

    Flickr Levels Up With Nokia’s Sexy Maps & Satellite Images

    Flickr announced today that it’s upgrading the maps that support the site’s geotagging feature with the help of Nokia’s very pretty, very detailed maps.

    The popular photo-sharing site has previously worked with (and will continue to work with) OpenStreetMap in order to fill in the gaps left by commercial maps but Nokia will be the major provider of awesome, updated maps. You can see below a before and after comparison of what the updated maps will look like (in case you can’t tell, the older map is on the left).

    Flickr Nokia Maps

    Flickr said that the new maps are available to everyone as of today, but when I use Flickr to go map around I’m still seeing that the maps still have the Navteq 2010 tag (Navteq is a subsidiary of Nokia). Nokia’s map site, however, displays an updated Navteq 2012 copyright tag, which I imagine Flickr will eventually display once the site’s maps are all updated. Even searching for the Tanzanian city of Dar es Salaam, as was used in the above example, I’m still seeing the older map. At any rate, the updates will be arriving soon enough (I presume) so keep an eye out.

    Nokia’s having quite maptastic moment lately. Nokia partnered with Bing earlier this year to boost the aesthetic and search quality of Bing Maps while last month Bing announced that Nokia would be providing backend support for real-time traffic info. Last week, Microsoft announced that the upcoming Windows Phone 8 would be getting mapping support from Nokia instead of Bing Maps.

  • Discover Your City’s Ratio Of Inane To Useful Tweets With Twaddler

    Twitter, like many social networks, log their posts with geographic tags. The company has allowed users to enable tweeting with your location for a while now, and many users routinely send out geotagged tweets. If a user has enable location-based tweets, they will see a location field just under the tweet box.

    While some users are understandably reluctant to add their location to their tweets, millions of other users are doing so on a daily basis. This naturally creates a trove of data that can be used to construct some pretty fun apps, and Twaddler is one of them.

    Twaddler creator Justin Reynen explains his service like this:

    Twaddler live streams geotagged tweets from around a given area, such as your home town, but you don’t have to stay there. You can check out what’s happening in London, New York, Paris, anywhere! Just use the Go To box. Twaddler only displays tweets with a geotag, not just a location, [and] Twaddler uses your location to get an idea of where you are when it starts up. Nothing is stored on a server, Twaddler is completely anonymous.

    The Twaddler interace uses Google Maps to plot the exact location of live incoming tweets to any location in the world. You can check out the flurry of tweets coming from your own city or explore what people are saying all over the world. There’s also a tweet stream attached to the left-hand side, if you don’t want to click all of the little flags:

    Twaddler isn’t the first application to pull from Twitter’s location data to pinpoint tweets in your area, but it’s fun to see everything in the map view and have the stream right next to it.

    I found Twaddler via reddit, and some users have some pretty interesting yet contrasting opinions on how Twaddler could be useful:

    It would be nice to highlight notable locations where a lot of people might be looking to learn of an event going on (like Egypt). This is a great idea your working on with lots of potential uses. Good luck!

    or…

    I had a LOT of fun with this last night. I punched in my local and pretty much twitter spammed anyone posting in my area that was being a dumbass on twitter.

    So there you have it. You could use Twaddler to track tweets in a particular location where something big is going down – or you could use it to troll all of the idiots posting inane tweets about their lunches. It’s up to you.

    Couple this with the fact that Twitter just launched location-specific Twitter trends, and you be a real-time news tracking machine. Or, you know, you could get a glimpse of just how stupid the twitter users in your hometown really are.

  • U.S. Army Warns Soldiers About Geotagging

    Location tagging poses plenty of problems for civilians. Let’s say you told your boss that you were sick, but instead had plans to catch a Yankees game. In that case, you probably don’t want your next post popping up on Facebook “from Yankee Stadium.” While unwanted geotagging through services like Facebook, Twitter, Foursquare, and more is definitely an annoyance to many of us, it could be a matter of life or death to someone in the military.

    That’s why the U.S. Army is warning soldiers about the dangers of geotagging.

    The threat is pretty obvious. Not only could voluntarily sharing a location compromise a mission, but so much that’s done on a smartphone or tablet these days is geotagged, soliders could be sharing their locations without even knowing it.

    “A deployed service member’s situational awareness includes the world of social media. If a Soldier uploads a photo taken on his or her smartphone to Facebook, they could broadcast the exact location of their unit,” said Steve Warren, deputy G2 for the Maneuver Center of Excellence.

    “Today, in pretty much every single smartphone, there is built-in GPS,” Warren said. “For every picture you take with that phone, it will automatically embed the latitude and longitude within the photograph.”

    In a post, the official site of the U.S. Army says that this has already happened. Back in 2007, as a new fleet of helicopters arrived at a base in Iraq, solider snapped some photos and out them online. Apparently, from those photos, enemies were able to single out the location and deliver a mortar strike that took out four AH-64 Apaches.

    The Army is particularly concerned with Facebook – especially the new Timeline, which we all know, brings up all of your past Facebook information for the world to see. Users have to go back and manage their Timelines to make them ready for primetime.

    “Some of those individuals have hundreds of ‘friends’ they may never have actually met in person, he explained. “By looking at someone’s map tab on Facebook, you can see everywhere they’ve tagged a location. You can see the restaurants they frequent, the gym they go to everyday, even the street they live on if they’re tagging photos of their home. Honestly, it’s pretty scary how much an acquaintance that becomes a Facebook ‘friend’ can find out about your routines and habits if you’re always tagging location to your posts,” said Staff Sgt. Dale Sweetname of the Online and Social Media Division.

    The U.S. Army has some pretty in-depth social media guidelines, and they address what soldiers should do in terms of the geotagging issue. First off, they say that soldiers should never tag photos posted to Flickr or Picasa with locations, and they should refrain from using location-based social networking when deployed or during training. When engaged in operations, soldiers should just turn off the GPS function on their phones.