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Facebook machine learning technology improves; Redditors alaramed.

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Re: Facebook machine learning technology improves; Redditors alaramed.

#81

Post by rufibarbatus »

darklajid wrote: post #41

Immature, but I really loved this comment/idea and wonder about the feasibility of such attacks: "You know what this means: Time to rewrite your EXIF info and location bomb the hell out of popular attractions. Eiffel Tower in Paris? Nope, it's in Iowa ..." [1] Possible? Google bomb with a twist? 1: http://www.reddit.com/r/WTF/comments/nkktm/facebook_is_reall...

There's anecdotal evidence, a little bit further down, of this actually happening: someone mentions Facebook thinking that their pictures of a trip to London were taken in England, Arkansas!

http://www.reddit.com/r/WTF/comments/nkktm/facebook_is_reall...

Re: Facebook machine learning technology improves; Redditors alaramed.

#82

Post by rmc »

yogrish wrote: post #28
drats wrote: post #24

http://en.wikipedia.org/wiki/Scale-invariant_feature_transfo... Facebook almost certainly has more photo information than TinEye or Flickr, and of indoor environments probably more than Google (which has reverse image search too). Across any given bar or hospital Facebook would have maybe 5-10 other people with albums tagged with the name/gps/check-in. They'd only need one other album though. SIFT more or less turns…

But why that whole technology for just making a Suggestion? There is something else they are working on...something really BIG and a complete game changer I guess.

Or it could just a be a way to get users to add more meta data to their data, which allows them to increase engagement

Re: Facebook machine learning technology improves; Redditors alaramed.

#83

Post by nmunson »

giulivo wrote: post #22

I think it's just GPS positioning by the smart phone. I wouldn't be fooled by a liar.

Quite a few people mention the pictures were taken with a camera and uploaded at a later date, so GPS wouldn't have been a factor. With the amount of data Facebook has I wouldn't be surprised that they could do more than just use GPS information to place locations.

Re: Facebook machine learning technology improves; Redditors alaramed.

#84

Post by dbarlett »

drats wrote: post #47
yogrish wrote: post #28

Earlier quoted context omitted.

But why that whole technology for just making a Suggestion? There is something else they are working on...something really BIG and a complete game changer I guess.

Also consider this, use SIFT on video stills and collect all the handheld video of a particular concert. Use machine learning to combine all the audio tracks and clean them up into high quality audio. Stitch the video together, using textures from the higher resolution stills people take, to allow people to relive the concert with a massive panoramic video (or 3D) with high quality sound. Use it to launch a music com…

Previously: http://news.ycombinator.com/item?id=3293324

Re: Facebook machine learning technology improves; Redditors alaramed.

#85

Post by ananthrk »

Yup. I had a similar experience couple of days back when FB listed three of my albums and correctly predicted the place names for confirmation. I was shocked when it _correctly_ predicted the location of one of my private albums which is an obscure town in southern India.

Given that most of my pictures were taken with cameras with no geo identification mechanism, I can only conclude that they identify the location based on any comments and similar photos available in _my_ network.

Re: Facebook machine learning technology improves; Redditors alaramed.

#86

Post by steve8918 »

I noticed this yesterday as well. I have photos uploaded from a Canon camera from 2007. There is simply not enough information to determine the location, but they correction identified the bar that the photos were taken at. I have no idea how they did it, but it really does bother me.

Re: Facebook machine learning technology improves; Redditors alaramed.

#87

Post by iradik »

JonnieCache wrote: post #19

The important thing to take away from this: If they can make guesses this accurate about your photos, imagine they guesses they're making behind the scenes about your life, your personality and your innermost thoughts. If there was a page on fb where it showed all the inferences they had made about you, sexuality, income, religion, philosophical viewpoints, mental health, etc. then people would run screaming. Of cour…

Why does FB need to make guesses about this stuff? People are supplying all this information in form fields in triplicate.

Also they are a fortune telling machine. That's a good pun actually. They are hoping to make a fortune by telling you what ads you'll click.

Re: Facebook machine learning technology improves; Redditors alaramed.

#88

Post by Pedrom »

sondh wrote: post #50

I don't think this is machine learning. I have Facebook suggested a few albums today (2 hours ago). Some of them are from 2+ years ago, others are recent ones. The suggestion is quite accurate (89%, 8 out of 9 albums). With the incorrect album, Facebook suggested another city with the same name but from another country! So Facebook probably just combine as much data as possible and when the matching rate is larger th…

Guessing from that data might still be using machine learning (e.g Collaborative filtering). I guess you meant it is not computer vision related. At this point I don't think it matters too much, they are using a combination of techniques (including the famous social graph) and that is giving good results.

Re: Facebook machine learning technology improves; Redditors alaramed.

#90

Post by chinmoy »

I googled Zooey Deschanel several hours ago. I was logged into facebook at that time. I log into facebook again and Zooey Deschanel in now on my 'People to Subscribe To' list. I came to hacker news to post an ask hn thread about if fb tracks my browsing history..and bummer I find this thread.
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