tag:blogger.com,1999:blog-5375482801030621268.post7162404492518367285..comments2019-11-27T09:12:25.924+00:00Comments on The Variable Tree: I Know Where You Were Last Summer: London's public bike data is telling everyone where you've beenJames Siddlehttp://www.blogger.com/profile/16540314794081485459noreply@blogger.comBlogger16125tag:blogger.com,1999:blog-5375482801030621268.post-82642318795702902022016-05-04T20:18:35.655+01:002016-05-04T20:18:35.655+01:00I appreciated your work very thanks quad kopenI appreciated your work very thanks <a href="http://www.snelheidscontroles.be/quadshop/" rel="nofollow">quad kopen</a><br />Roman lesnarhttps://www.blogger.com/profile/18036851073128899830noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-83696250892889302602016-04-15T07:09:12.019+01:002016-04-15T07:09:12.019+01:00Find out about what critical data can be revealed ...Find out about what critical data can be revealed inside numerous US open records. The majority of you understanding this likely have no idea what is "openly accessible" about you to anybody that is occupied with doing some basic exploration. <a href="http://www.mordocrosswords.com/2016/04/make-public.html" rel="nofollow">Make public</a>Justin L. Brownhttps://www.blogger.com/profile/05068868452059665489noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-72786260716270534822015-08-05T11:24:12.593+01:002015-08-05T11:24:12.593+01:00Hi James - I note that the most recent cycle hire ...Hi James - I note that the most recent cycle hire data from tfl offers data under the following headings:<br /><br />Rental Id<br />Duration <br />Bike Id <br />End Date <br />EndStation Id <br />EndStation Name <br />Start Date <br />StartStation Id <br />StartStation Name<br /><br />Is the issue resolved now? Did TfL ever get back to you about this post? <br /><br />I'm interested because I'm writing a report on open data and TfL at the moment, would love to hear from you - becky.hogge@gmail.comUnknownhttps://www.blogger.com/profile/02168423075085142233noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-35562283156878553492015-01-12T10:33:30.322+00:002015-01-12T10:33:30.322+00:00I used Leaflet.js, a javascript library for creati...I used Leaflet.js, a javascript library for creating interactive maps.James Siddlehttps://www.blogger.com/profile/16540314794081485459noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-53524698950082673642015-01-12T10:32:29.765+00:002015-01-12T10:32:29.765+00:00Thanks for the comment. It's a good point - mi...Thanks for the comment. It's a good point - misuse of this data by government agencies (etc) is a risk.<br /><br />Also I guess it says something about the state of the world that I'm scared to click that link you provided, in case I raise a red flag somewhere :/James Siddlehttps://www.blogger.com/profile/16540314794081485459noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-90989066515789590922015-01-06T10:27:58.918+00:002015-01-06T10:27:58.918+00:00What tool did you use to visualise the data?What tool did you use to visualise the data?LeMonkeyEstMorthttps://www.blogger.com/profile/05396311356675121158noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-23733578460636018542014-12-29T09:14:28.205+00:002014-12-29T09:14:28.205+00:00The fact that third parties might identify these c...The fact that third parties might identify these customers is a secondary danger. The primary danger is that the operator of the system already knows who they are, and so does Big Brother.<br /><br />The system must be redesigned not to collect this information at all. See http://gnu.org/philosophy/surveillance-vs-democracy.html.<br /><br />Dr Richard Stallman<br />President, Free Software Foundation (gnu.org, fsf.org)<br />Internet Hall-of-Famer (internethalloffame.org)<br />MacArthur FellowAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-30003176415207114632014-11-24T22:33:20.876+00:002014-11-24T22:33:20.876+00:00Excellent article about bike hire in London and t...Excellent article about bike <a href="http://ldnmarquees.co.uk" rel="nofollow">hire in London</a> and the technology which can be used to track us.Anonymoushttps://www.blogger.com/profile/05766144245873072948noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-30547762454213875442014-04-11T15:21:24.905+01:002014-04-11T15:21:24.905+01:00Assuming you are speaking about the data here: htt...Assuming you are speaking about the data here: http://www.tfl.gov.uk/info-for/open-data-users/our-feeds<br />Under the Network statistics -> Barclays Cycle Hire statistics<br />The documentation states:<br /><br />Details of all Barclays Cycle Hire journeys.<br />The journey information includes:<br />Journey ID, Bike ID, Start date, Start time, End date, End time, Start docking station, Start docking station ID, End docking station, End docking station ID<br /><br />Yet in the excel file we see the headings:<br />Rental Id Billable Duration Duration Unique ID/Customer Record Number Subscription Id Bike Id End Date EndStation Id EndStation Logical Terminal EndStation Name endStationPriority_id Start Date StartStation Id StartStation Logical Terminal StartStation Name startStationPriority_id EndHourCategory Id StartHourCategory Id BikeUserType Id<br />Cyrillehttps://www.blogger.com/profile/09537501750862153178noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-12625026907920251582014-04-11T15:13:20.275+01:002014-04-11T15:13:20.275+01:00I just downloaded the dataset. Bunch of xlsx sprea...I just downloaded the dataset. Bunch of xlsx spreadsheets, and I see the "Unique ID/Customer Record Number" field in there. It's not shown on the list of fields on <a href="http://www.tfl.gov.uk/info-for/open-data-users/our-feeds" rel="nofollow">this doc site</a>. I'm reliably informed (by Ollie Obrien, creator of <a href="http://bikes.oobrien.com/london/" rel="nofollow">this awesome bikeshare map</a>), that this field <a href="https://twitter.com/oobr/status/454589212311187456" rel="nofollow">wasn't in earlier versions of the dataset</a>. Maybe they've added it by mistake.<br /><br />I wouldn't say it's a disastrous breach of privacy. As I tried to imagine the more nefarious use case, I thought about a stalker. He spots his target docking her boris bike and makes a note of the time. Bingo! he can correlate that to find her customer ID and see where she's been ...except the data's only published for a 6 month period in the past right? And ultimately it only reveals where somebody's been boris-biking. It's not like you have their home address, as you would if you just followed them home for example.<br /><br />Even so it's pretty interesting how big databases involving people's location can be more personal than one might at first imagine, and only by adding one seemingly anonymous numeric column.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-29298858562966040952014-04-11T10:49:12.623+01:002014-04-11T10:49:12.623+01:00This is a really interesting analysis JS. The Open...This is a really interesting analysis JS. The Open Data and Privacy project (of OKF+ORG) is raising similar questions of whether privacy risks are being sufficiently managed if individuals can make the sorts of inferences from open datasets such as you have done here. We propose to outline some basic guideline which data publishers must follow in order to ensure such privacy lapses are minimized. Follow us on Twitter to stay updated @OpenDataPrivacyAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-15334589164239190682014-04-11T09:10:49.533+01:002014-04-11T09:10:49.533+01:00Indeed, though a billion dollars seems a bit low I...Indeed, though a billion dollars seems a bit low IMO. James Siddlehttps://www.blogger.com/profile/16540314794081485459noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-23574473487173963502014-04-11T07:42:23.732+01:002014-04-11T07:42:23.732+01:00Really good work James. Now if you can overlay ...Really good work James. Now if you can overlay ''twitter'' locations facebook updates you can open a dot.com and be bought out in 5 years for a Billion dollars. GCHQ and the NSA are hiring as well.Sunray06https://www.blogger.com/profile/04748878769960584896noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-30472591691138389472014-04-11T07:08:03.005+01:002014-04-11T07:08:03.005+01:00The actual bike data that you download from the TF...The actual bike data that you download from the TFL website contains customer record numbers - the maps really are showing profiles for people.<br /><br />It may of course be a mistake, and I've tried telling this to TFL. In the meantime, it's possible for someone to download and analyse your movements - if they can identify your profile.James Siddlehttps://www.blogger.com/profile/16540314794081485459noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-11436286170863187212014-04-11T05:19:19.544+01:002014-04-11T05:19:19.544+01:00I think Siddle's point is that given enough ov...I think Siddle's point is that given enough overlapping data, it might be possible to identify certain bike users. He mentions, for instance, time-stamped and geo-coded photos. Lauren D. Shinnhttps://www.blogger.com/profile/14073277332635659836noreply@blogger.comtag:blogger.com,1999:blog-5375482801030621268.post-30527898553972228932014-04-11T01:33:03.399+01:002014-04-11T01:33:03.399+01:00Um, what? The dataset contains a Bike ID, not a cu...Um, what? The dataset contains a Bike ID, not a customer ID. You are tracking bikes not individual customers.Anonymoushttps://www.blogger.com/profile/06961465109778466289noreply@blogger.com