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Facebook Knows If You're Gay, Use Drugs, Or Are a Republican

Hugh Pickens writes writes "Not that there's anything wrong with that — as the Guardian reports that Facebook users are unwittingly revealing their sexual orientation, drug use and political beliefs– using only public 'like' updates. A study of 58,000 Facebook users in the US found that sensitive personal characteristics about people can be accurately inferred from information in the public domain. Researchers were able to accurately infer a Facebook user's race, IQ, sexuality, substance use, personality or political views (PDF) using only a record of the subjects and items they had 'liked' on Facebook – even if users had chosen not to reveal that information. 'It is good that people's behavior is predictable because it means Facebook can suggest very good stories on your news feed,' says Michal Kosinski, 'But what is shocking is that you can use the same data to predict your political views or your sexual orientation. This is something most people don't realize you can do.' For example, researchers were able to predict whether men were homosexual with 88% accuracy by their likes of Facebook pages such as 'Human Rights Campaign' and 'Wicked the Musical' – even if those users had not explicitly shared their sexuality on the site. According to the study other personality traits linked to predictive likes include for High IQ — 'The Godfather,' 'Lord of the Rings,' 'The Daily Show'; for Low IQ — 'Harley Davidson,' 'I Love Being A Mom,' 'Tyler Perry'; and for male heterosexuality — 'Wu Tang Clan,' 'Shaq,' and 'Being Confused after Waking Up from Naps.' Facebook's default privacy settings mean that your 'likes' are public to anyone and Facebook's own algorithms already use these likes to dictate what stories end up in users' news feeds, while advertisers can access them to determine which are the most effective ads to show you as you browse."

92 of 473 comments (clear)

  1. Knows and Presumes are not the same thing by Anonymous Coward · · Score: 3, Insightful

    FB incorrectly presumes that I am not str8 and like MJ, when I happen to be str8 and don't use MJ.

    I just like Freedom.

    All your analysis of Like proves is that you don't get how people work.

    1. Re:Knows and Presumes are not the same thing by UneducatedSixpack · · Score: 5, Insightful

      One day you will "like" something wrong...

    2. Re:Knows and Presumes are not the same thing by Kelson · · Score: 4, Interesting

      I figure over-reliance on this sort of analysis explains why Facebook will show me ads for dating services even though it knows I'm married. I like all this geeky stuff, so obviously the advertisers assume I'm single.

    3. Re:Knows and Presumes are not the same thing by CanHasDIY · · Score: 5, Funny

      Which is why I hit the "like" button for EVERYTHING!!!!!

      FYI, I wouldn't recommend drinking from that well, considering how much I piss in it.

      --
      An enigma, wrapped in a riddle, shrouded in bacon and cheese
    4. Re:Knows and Presumes are not the same thing by Kjella · · Score: 4, Funny

      I figure over-reliance on this sort of analysis explains why Facebook will show me ads for dating services even though it knows I'm married. I like all this geeky stuff, so obviously the advertisers assume I'm single.

      That is of course one possible explanation... try again.

      --
      Live today, because you never know what tomorrow brings
    5. Re:Knows and Presumes are not the same thing by ClioCJS · · Score: 3, Insightful

      Your analysis of their analysis proves that you can't analyze analyses. Being right 88% of the time means being wrong 12% of the time. It's not special that they aren't right for you.

      --
      -Clio
      Karma: Bad (mostly from not giving a fuck)
      Blog: http://clintjcl.wordpress.com
    6. Re:Knows and Presumes are not the same thing by Beardo+the+Bearded · · Score: 5, Funny

      You and me both, I've convinced Google that I'm a gay male yoga instructor.

      Also, I've been shaving since 2004.

      --

      ---
      ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
    7. Re:Knows and Presumes are not the same thing by K.+S.+Kyosuke · · Score: 4, Funny

      How does gay male yoga differ from normal yoga?

      --
      Ezekiel 23:20
    8. Re:Knows and Presumes are not the same thing by sonnejw0 · · Score: 2

      This actually raises interesting questions about stereotypes and whether or not they are true, which I think would be a bane in the opinion of most minority groups. Stereotypes, after all, are just statistical observations. This study would seem to provide significant evidence to support stereotypes, and I think that's even more impactful on society than any privacy concerns you may have about how your public actions (in this case, 'Liking' on Facebook) portray your personal beliefs.

    9. Re:Knows and Presumes are not the same thing by Jafafa+Hots · · Score: 2

      I'm a non-smoker with five different "most-often-purchased" brands of cigarette.

      (freebies)

      --
      This space available.
    10. Re:Knows and Presumes are not the same thing by xstonedogx · · Score: 4, Funny

      How does gay male yoga differ from normal yoga?

      In male yoga we "center our beings" by being in the back row and not doing a whole lot of actual yoga.

    11. Re:Knows and Presumes are not the same thing by ShanghaiBill · · Score: 5, Insightful

      Your analysis of their analysis proves that you can't analyze analyses. Being right 88% of the time means being wrong 12% of the time. It's not special that they aren't right for you.

      Also, being "right" 88% of the time is meaningless unless you break out false positives and false negatives. It is estimated that 5-10% of the population is gay. So I could just predict that everyone is straight, and I would be "right" more than 90% of the time.

    12. Re:Knows and Presumes are not the same thing by Idbar · · Score: 3, Interesting

      This is an interesting take.

      Recently a friend updated his status to something like:
      I had an accident, I'm already at the hospital

      I didn't know if I should laugh at the amount of people clicking on "like". Is facebook thinking all the likes meant sadist behaviors?

    13. Re:Knows and Presumes are not the same thing by Beardo+the+Bearded · · Score: 2

      That's Broga.

      When men do yoga the poses are usually ones that require more strength.

      --

      ---
      ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
    14. Re:Knows and Presumes are not the same thing by jafac · · Score: 2

      exactly.

      The more they mine data, the more they are polishing my turds.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    15. Re:Knows and Presumes are not the same thing by Fuzzums · · Score: 2

      Would be a bit scary if FB, that also knows the likes of the partner, is trying to tell you "something" by showing that kind of ads.
      Or suddenly you get ads for baby stuff.

      --
      Privacy is terrorism.
    16. Re:Knows and Presumes are not the same thing by s.petry · · Score: 4, Interesting

      Why not just never hit a like button? Sure, it's possible for Google to figure things out based on my URLs, but dang at least they have to work for that one.

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    17. Re:Knows and Presumes are not the same thing by Sique · · Score: 2

      Stereotypes, after all, are just statistical observations.

      No. Sometimes, they are statistical observation. Sometimes they are just confirmation bias.

      --
      .sig: Sique *sigh*
    18. Re:Knows and Presumes are not the same thing by fatphil · · Score: 2

      ^^^
      Most informative post on the story so far. I was just about to post something similar myself, but you saved me the effort.

      The middle link, to the PDF, does wave some statistical terminology in my face, but alas I don't have the stats nous to work out how interesting their claim is from is. Apparently, they give the probability of correctly working out which is which when given two people from opposite sides of a fence. Just knowing that you've got both sides of a dichotomy gives you a pretty useful dollop of information. When I've seen tests like that in the past, namely can you distinguish X from non-X, the subjects were given pairs that were X+X, X+nonX, and nonX+nonX. (See the Mythbusters episode that covered "smell of fear", IIRC, for such tests.)

      It would be appreciated if someone with better stats smarts could chip in.

      I'd like to get my hands on the raw data set and see if a heuristic algoritm can do better than their arithmetical one. (i.e. "obvious", as the story's tags suggest.)

      --
      Also FatPhil on SoylentNews, id 863
    19. Re:Knows and Presumes are not the same thing by History's+Coming+To · · Score: 2

      Thanks to somebody signing up using the wrong email address (mine) internet advertising seems convinced that I'm looking for a long term relationship with a woman between 50 and 65 in the English midlands. Suits me, it saves a whole lot of suspicious looks from my 30ish girlfriend in the Scottish Highlands. I never even hit the confirm registration button. Honestly.

      I also regularly search for terms on terms in Qu'ranic Islam (I'm an atheist but find it interesting) and nuclear technology (I'm a physics geek and that's one of my "things".)

      The solution as far as I can see is to have really wide ranging interests.

      --
      Please consider this account deleted, I just can't be bothered with the spam anymore.
    20. Re:Knows and Presumes are not the same thing by hedwards · · Score: 3, Insightful

      And how many women on these sites are really single?

    21. Re:Knows and Presumes are not the same thing by lightknight · · Score: 3, Insightful

      Ah, the power of gossip. When everyone 'knows' what you are thinking, except it's the wrong thing, but your attempts to correct it lead to two unhappy outcomes: a lack of privacy or no change at all (the more you attempt to convince people otherwise, the more it confirms it in their eyes). Were it not for the passive aggressive nature of mankind, it might even be entertaining; but sadly, this is some people's lives...

      I've noticed an interesting defense mechanism is to talk about someone else that a group can agree is deplorable, if only because it prevents active gossiping about any of the immediate members. Human beings are such ugly creatures....

      --
      I am John Hurt.
    22. Re:Knows and Presumes are not the same thing by Kjella · · Score: 4, Interesting

      No. Sometimes, they are statistical observation. Sometimes they are just confirmation bias.

      Most of the time they're just a small group that distinguish themselves so clearly. For example if you asked me to mime an American, I'd probably go for a gun-toting Texan even though I'm perfectly aware that they're hardly representative of a country of 300 million. But those other people are a lot like other people found other places, so if you're going for the uniquely American they rise to the top of the pile. Same with almost every other stereotype I can think of, they're more like a mascot or caricature than reflecting reality.

      At least those based on things like country, now people of the same profession on the other hand can actually be disturbingly like their stereotype. It's something to do with the personality of people attracted to the same line of work and the cultural conformity, like a friend of mine once said after speaking at a conference for county auditors. "I went to the conference thinking it would dispel the stereotypes I had, instead I found they were all true." People have an incredible way of adjusting to what they perceive as normal and that becomes the stereotype.

      --
      Live today, because you never know what tomorrow brings
    23. Re:Knows and Presumes are not the same thing by pclminion · · Score: 5, Insightful

      The more they mine data, the more they are polishing my turds.

      You're just an outlier in the data. Easily identified, easily filtered out...

      Coming up with a profile that is completely incorrect and undetectably so is far more difficult than just being random and contradictory.

    24. Re:Knows and Presumes are not the same thing by Jawnn · · Score: 4, Funny

      And how many women on these sites are really single?

      Meh. I want to know how many of them are really, you know... women.

    25. Re:Knows and Presumes are not the same thing by ron_ivi · · Score: 2

      Which is why I hit the "like" button for EVERYTHING!!!!!

      I wrote a browser plugin to randomly search google and randomly click on things when my computer's idle.

      Gives both plausible deniability, as well as burying actual behaviour in the noise.

      If there's interest, I should probably clean it up and publish it.

    26. Re:Knows and Presumes are not the same thing by MaskedSlacker · · Score: 4, Funny

      I also regularly search for terms on terms in Qu'ranic Islam (I'm an atheist but find it interesting) and nuclear technology (I'm a physics geek and that's one of my "things".)

      I hear the weather in Gitmo is great this time of year.

    27. Re:Knows and Presumes are not the same thing by YttriumOxide · · Score: 4, Interesting

      How many women on these sites are real?

      Thankfully it only takes one... I met my wife on a dating site. We just celebrated our second wedding anniversary and are preparing for our daughter's birthday.

      Dating sites aren't always as horrid and retched as they seem to be - they're a great way for a shy guy and a shy girl who may otherwise never have crossed paths to get together.

      --
      My book about LSD and Self-Discovery
      Also on facebook as: DroppingAcidDaleBewan
    28. Re:Knows and Presumes are not the same thing by thesandtiger · · Score: 4, Insightful

      Yep.

      Any well designed social psych/sociology research project will have tons of ways to check for validity and consistency of data, and the more clever ones will even have ways of identifying the particular ways people will fuck with data and developing a partial profile there, too.

      The vast majority of the data will be a fairly accurate representation - the user base is so large that a few "clever" people trying to piss in the well won't have any effect - they aren't even a blip - while the rest of the userbase doesn't see much point in liking random things or going against the established function of the systems.

      As to the study itself - I think it will be interesting to see how the profile for any given demographic shifts over time as various things become more or less mainstream and more or less strongly associated with various demographic buckets.

      --
      Since I can't tell them apart, I treat all ACs as the same person.
    29. Re:Knows and Presumes are not the same thing by shikaisi · · Score: 5, Funny

      If it turns out that, on average, 95% of people who watch Top Gear are heterosexual and 95% of people who watch Glee are homosexual, if I like both it proves absolutely nothing about me.

      Except that now we all know you are bisexual.

      --
      No left turn unstoned.
    30. Re:Knows and Presumes are not the same thing by allo · · Score: 2

      > Which is why I hit the "like" button for EVERYTHING!!!!!
      thats exactly wrong. Then facebook knows, whats everything for you. So they know all of your environment, because you clicked like on everything YOU saw, but of course not on things, you did not see.

    31. Re:Knows and Presumes are not the same thing by interkin3tic · · Score: 2

      Also, I've been shaving since 2004.

      This is not the first time I've seen you admit that you are no longer bearded. If I knew that, surely google knows that.

  2. Also by mozumder · · Score: 4, Insightful

    You can tell that just by talking to people.

    1. Re:Also by mozumder · · Score: 4, Insightful

      and i'm pretty sure your credit card companies already knows these things just from your purchase habits.

    2. Re:Also by s.petry · · Score: 3, Insightful

      Well, credit card companies are probably digging all the information. Insurance agencies also. Guess who gets a higher premium in their life insurance? Guess who gets better credit?

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    3. Re:Also by powerlinekid · · Score: 2

      They only know where you shop, not what exactly you buy.

      --

      can't sleep slashdot will eat me
  3. And if you're a gay drug using Republican by Anonymous Coward · · Score: 4, Funny

    They have a job for you at Facebook.

  4. Turns out by WillgasM · · Score: 5, Funny

    Turns out, I'm gay. Even Facebook knew it before I did.

    1. Re:Turns out by Anonymous Coward · · Score: 5, Funny

      *phew* close call, you could have been a republican!

    2. Re:Turns out by KingSkippus · · Score: 4, Interesting

      Funny, but it does make me wonder. While I'm not gay, I do tend to like statuses and pages that have to do with gay rights, and several of my friends on Facebook are gay, yet I still see ads all the time for single ladies in my area. It makes me wonder: 1) Has Facebook accurately pegged me as straight (or bisexual) even though I haven't given it any direct indication of what I am, 2) has Facebook not made the connection and/or advertisers don't care, just spamming their ads to all males, or 3) is Facebook using some other algorithm that happens to be accurate for me, but generally less accurate for the population as a whole? Personally, I think #2 is correct.

      I'd like to see a page about me that says, "Here's the information you've provided, and here's the information we're inferring from what we know about you." I suppose they'd never do that because it might very well creep people out too much, but then, it might get people whose inferences are wrong to directly supply the information to them.

    3. Re:Turns out by 246o1 · · Score: 5, Interesting

      I'd like to see a page about me that says, "Here's the information you've provided, and here's the information we're inferring from what we know about you." I suppose they'd never do that because it might very well creep people out too much, but then, it might get people whose inferences are wrong to directly supply the information to them.

      BlueKai does something similar (except it's for a wide range of display advertising, not just facebook) - they infer things about you based on your browsing history and use that to target ads at you. They are all over the web, so they have a good amount of information, but the surprising thing to me is that they let you look at your profile on their website - http://www.bluekai.com/registry/ is the place to find it.

      I don't work for BlueKai, or even for a company that uses them.

      --
      Although the moon is smaller than the earth, it is farther away.
    4. Re:Turns out by game+kid · · Score: 2

      Wait 'til they study RPG character creation. By extrapolation from the Wicked findings and my female mage frequency, they'll conclude I'm the chair of glaad and late to the next board meeting.

      --
      You can hold down the "B" button for continuous firing.
    5. Re:Turns out by Anonymous Coward · · Score: 5, Funny

      I'm a Republican Gay Man, you insensitive clod! I oppose gay marriage only because I don't want us homosexuals to have to be as unhappy as you heterosexuals!

    6. Re:Turns out by DigiShaman · · Score: 4, Funny

      Log Cabin Republicans. Such a group exists.

      --
      Life is not for the lazy.
    7. Re:Turns out by Nossie · · Score: 3, Funny

      I have discovered they apparently know nothing about me..

      +1 no script /ghostery

    8. Re:Turns out by demonlapin · · Score: 3, Interesting

      Hardly strange. My wife and I are socially liberal Republicans; we're not the majority of the party but we aren't unique either. We're friends with a very traditional, very Republican lesbian couple. (Like, ridiculously so. One of them took the other's last name when they got married.)

    9. Re:Turns out by nametaken · · Score: 2

      I don't know why people think it's so impossible. It's only about as strange as liberal gun owners... of which there are millions.

      It shouldn't surprise anyone that people have opinions on more than one thing, at the very same time.

    10. Re:Turns out by Black+Parrot · · Score: 5, Funny

      If he's gay he could well be a closet Republican that's in denial.

      Maybe he can be cured of his Republicanism!

      They cure Teh Gey with the traditional "laying on of hands". (Presumably if it doesn't give you a boner, they know you're cured.)

      Similarly, they cure Teh Republicanism by burying you in money. If it doesn't give you a boner, you're not a Republican anymore.

      --
      Sheesh, evil *and* a jerk. -- Jade
  5. But by Master+Moose · · Score: 5, Insightful

    The highest intelligence indicator were the users who ignored everything, revealed very little and never "liked" anything - knowing that anything they did on facebook would be mined and used for metrics and marketing.

    --
    . . .gone when the morning comes
    1. Re:But by Anonymous Coward · · Score: 5, Funny

      Not Intelligent, just paranoid. Kinda like posting anonymously on Slashdot.

    2. Re:But by dwywit · · Score: 4, Insightful

      Wouldn't the "highest intelligence indicator" be applied to those who don't "do" facebook, twitter, etc?
       
      Or did I just miss something flying over my head?

      --
      They sentenced me to twenty years of boredom
    3. Re:But by rsborg · · Score: 5, Interesting

      Wouldn't the "highest intelligence indicator" be applied to those who don't "do" facebook, twitter, etc?

      Or did I just miss something flying over my head?

      You aren't missing it, but aren't seeing the totality of Facebook's insidious nature. Now not having a Facebook account is treated by HR departments as suspicious behavior. Also, Facebook made it easy for people to "tag" you - if you don't have an account, you can't repudiate it (or prevent tagging by default). You are literally forced to play their game unless you want your good name being abused. So best move is to have one that's effectively empty, and turn all privacy settings down to the most private.

      Of course this defeats the purpose of having a Facebook account - but that's the purpose, right?

      --
      Make sure everyone's vote counts: Verified Voting
    4. Re:But by Anonymous Coward · · Score: 3, Interesting

      There's no intelligence left on facebook. I routinely campaign for my co-habitating "things" (Do I call them human?) to not use facebook and delete their profiles, stop playing their dumb-ass facebook games and start getting "involved in their economy and government".

      They facebook, smoke, drink, and whine about how the government and corporate monopolies are oppressive, rather then considering doing anything about it. They also pretend to garden. Which is ironic because they would starve if walmart and publix did not exist.

      They also procreated.

      I bet you can deduce a lot from what I have to say. But humans are a dumb species in general. I have met smarter animals, usually large predators that don't hang out near people in plain site are smarter then most people.

    5. Re:But by Spy+Handler · · Score: 2, Insightful

      The highest intelligence indicator were the people who never joined facebook and want nothing to do with it.

      However, people with the lowest IQ who cannot learn to operate a computer or a phone also were not able to join Facebook.

    6. Re:But by Anonymous Coward · · Score: 5, Insightful

      Now not having a Facebook account is treated by HR departments as suspicious behavior.

      Frankly, any HR department that really thinks this can go fuck itself with an iron stick.

      I think this is a myth the media is pushing to try to get more people on Facebook.

    7. Re:But by GumphMaster · · Score: 3, Interesting

      Now not having a Facebook account is treated by HR departments as suspicious behavior.

      This, I fear, is quite believable given some of the looks of incredulity I have had when asked by HR for my mobile (cell, for our American brethren) number. I politely decline on the grounds that I neither own nor want a mobile phone. One HR drone even accused me of being dishonest because it was so far beyond her youthful experience as to be unbelievable that one could survive without a mobile. Heck, our home phone when I was a child was made of bakelite and had a handle on the front you turned vigorously to get the operator's attention: our complete phone number was "78". (For the record I am only 45.)

      --
      Patent litigation: A doctrine of Mutually Assured Destruction... in which everyone seems willing to push the button
    8. Re:But by joelleo · · Score: 3, Funny

      I wish _I_ had a risk-benefit radio :( All I have are these stoopid actuarial tables :(

      --
      "In the end, there is simply no weapon more devastating than the truth, delivered in just the right way." - tnk1
    9. Re:But by fyngyrz · · Score: 3, Funny

      risk-benefit radio

      The risk is that you'll hear Rush Limpballs; the benefit is that you can clout him with the radio. Is that it?

      --
      I've fallen off your lawn, and I can't get up.
    10. Re:But by s.petry · · Score: 3, Insightful

      I agree. Especially when I hear the constant "follow us on Facebook and Twitter" plugs on every major news agency. Twitter would be fine for members of an active revolution or something.. but not day to day contact and communication. I don't care when you fart or how good your hamburger tasted. Most other people don't care either. The delusions of grandeur we can access so easily, and yes that is what many people use it for.

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    11. Re:But by DerekLyons · · Score: 5, Insightful

      The highest intelligence indicator were the people who never joined facebook and want nothing to do with it.

      Three quarters of the Mensa members I know use Facebook. I know a lot of *very* smart and intelligent people, and the vast majority of them are on Facebook too.
       
      Seriously Slashdot, get the fuck over yourself - this ignorant bias against anyone who uses Facebook doesn't make you intelligent, it makes you look like a jackass.

    12. Re:But by Anonymous Coward · · Score: 4, Funny

      Mensa is for a special class of genius. It makes sense that that same segment would gravitate to Face Book.

    13. Re:But by betterprimate · · Score: 2

      Three quarters of the Mensa members I know use Facebook.

      Mensa is club for moderately stupid people who have altogether failed at life and need to sustain a false sense of self worth. Anyone who is willing to join a club for this will likely use Facebook for the same purpose.

      I know a lot of *very* smart and intelligent people, and the vast majority of them are on Facebook too.

      No. No, you don't. No one intelligent uses Facebook for *personal* use.

      Seriously Slashdot, get the fuck over yourself - this ignorant bias against anyone who uses Facebook doesn't make you intelligent, it makes you look like a jackass.

      You sound insecure.

    14. Re:But by Toonol · · Score: 2

      Granted, it was a joke. The trouble is, there are not just a few people on slashdot who will gladly and vociferously proclaim their superiority because they don't have a facebook account, don't have a cellphone, or don't own a television. You've got to give us some clue that you aren't deadly and arrogantly serious. I suggest the sarcasm punctuation mark: '~'. As in:

      A new punctuation mark. That'll catch on~

    15. Re:But by stretch0611 · · Score: 2

      I don't care when you fart or how good your hamburger tasted.

      I don't blame you for not caring. However, I know for a fact that my co-workers do care when I fart.

      --
      Looking for a job?
      Want your resume written professionally?
      DON'T USE TUNAREZ!!!
    16. Re:But by tehcyder · · Score: 2

      I bet you can deduce a lot from what I have to say.

      You're a bitter college drop-out with mild self-diagnosed Asperger's, your parents told you that you were special because you once got over 120 on an IQ test after they force fed you answers for three straight weeks, you're puritanical in your outlook on life despite thinking of yourself as socially progressive, and (above all) you need to get laid?

      --
      To have a right to do a thing is not at all the same as to be right in doing it
    17. Re:But by tehcyder · · Score: 2

      The highest intelligence indicator were the people who never joined facebook and want nothing to do with it.

      And the highest smug indicator were [sic] the people who posted the fact that they don't have a facebook account on slashdot.

      --
      To have a right to do a thing is not at all the same as to be right in doing it
  6. I wonder... by bobthesungeek76036 · · Score: 4, Funny

    if that "Honey-Boo-Boo like" on Facebook will lower my IQ score...

    --
    Karma: Bad
  7. Similar to Winning Bid on Netflix by Araes · · Score: 2

    Uses a similar methodology (SVD, which was the highest scoring method in isolation) to correlate Likes with Traits, whereas Netflix used prior movie Likes to correlate with future movie Likes. Effectively, Netflix's competition was probably correlating with a hidden indicator or personality subtype set which corresponded strongly to likes of particular movies.

    It is highly likely that were they to apply the winning method from the Netflix competition (SVD paired with a weighted set of other indicators) that they would probably show even higher correlation and predictive power for personality subtypes.

  8. Gaydar by Anonymous Coward · · Score: 3, Insightful

    Similar research conducted by MIT student project back in 2009. See http://firstmonday.org/htbin/cgiwrap/bin/ojs/index.php/fm/article/view/2611/2302. Surprised it wasn't cited.

  9. Base rates by jon.willits · · Score: 5, Insightful

    I can do better than 88% accuracy at guessing if people are homosexual by guessing "no" every time.

    1. Re:Base rates by c9brown · · Score: 2

      This is why prediction results are basically meaningless without sensitivity and specificity numbers...

    2. Re:Base rates by tekxtc · · Score: 2

      Dude - had you left off the last sentence or two from your comment, you might have received many insightful mods. Why Godwin yourself? What a waste of such an insightful comment.

    3. Re:Base rates by fatphil · · Score: 2

      You don't have that option in the test they did. They took a gay and a straight, and you (the mathematical model) had to determine which one was gay and which was straight. You can't apply your method to this test.

      --
      Also FatPhil on SoylentNews, id 863
  10. Re:Facebook knows that I like fisting? by Anonymous Coward · · Score: 3, Informative

    And Slashdot can now think it knows for everyone else based on whether they clicked "Read the rest of this comment..."

  11. cultural by MavEtJu · · Score: 3, Insightful
    the researchers found that users who "like" "Thunderstorms," "The Colbert Report," "Science" or "Curly Fries" are all slightly more likely to have high IQ than those who don't.

    And it rated for people not living in heavily American culturally influenced and non native English speaking countries that they all had a lower IQ.

    --
    bash$ :(){ :|:&};:
  12. Here's a question by Okian+Warrior · · Score: 3, Interesting

    So facebook knows all sorts of things about people.

    Here's a question: Does facebook know if you're guilty?

    1. Re:Here's a question by Neil+Boekend · · Score: 2

      Yes, of course it does. The answer is "Yes". However it usually does not know what you are guilty of.

      --
      Well, I might have a way, but it only works on a semi spherical planet in a vacuum.
  13. Re:Cultural bias much? by fermion · · Score: 2

    Hence the 12% error rate. This is a game or a means to allow advertisers to target users. It is really no different that assuming your status based on the neighborhood you live in. Or your intentions based on the bars you visit. I pretty much know if you gay, a frat boy, looking for rich husband, based on what I bar I see you in.

    --
    "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
  14. Party Affiliation is Public Record by Anonymous Coward · · Score: 2, Informative

    Political party affiliation is public record. Anyone can find out, There isn't any secretive voodoo to it.

  15. Screw with the Algorithm by Stormy+Dragon · · Score: 3, Funny

    I left the TV on when I fell asleep, so I was confused when I woke up from my nap to discover Tyler Perry talking about The Lord of the Rings on the Daily Show. If I was that rich I would just buy a really Wicked Harley Davidson.

  16. Just The Tip by Bob9113 · · Score: 5, Interesting

    found that sensitive personal characteristics about people can be accurately inferred from information in the public domain.

    I've done this stuff, for both ad targeting and music targeting, and I understand the math. Knowing whether you are gay is just the tip of the iceberg.

    From the data it can be inferred whether you believe Bradley Manning was justified, whether you think it is treason for a politician to support warrantless surveillance, and whether you believe the "four boxes" epigram is relevant in the current context.

    It can be inferred how you react to various turns of phrase, which ways of presenting an idea will ring with you, and therefore how to present a story to you, such that you will be likely to repeat the sound bites on one side of the issue or the other.

    They can do this, with an automated system, for hundreds of millions of people -- as can anyone who pays them enough for the data or analysis. It is not a difference in type from what has gone by the name of PR, spin, or handling; but rather a difference of speed, pervasiveness, precision targeting, and potency. It puts more power to distort human perception of reality in the hands of fewer people than ever before -- by orders of magnitude.

    The data, once gathered, will remain, and will be packaged and sold, and cracked and siezed, until long after you are dead -- barring some very serious and extremely disruptive counteractivity. It is getting worse every day, and the cost of correcting it is growing exponentially.

    Most people don't know it is happening, and most of those who do don't seem to grasp the consequences.

  17. lotr = high iq? by noh8rz10 · · Score: 2
    TFS:

    other personality traits linked to predictive likes include for High IQ — ...'Lord of the Rings,'

    bahahahaha

    1. Re:lotr = high iq? by Qzukk · · Score: 5, Funny

      The authors of the study all liked LOTR.

      --
      If I have been able to see further than others, it is because I bought a pair of binoculars.
  18. Re:Facebook by R3d+M3rcury · · Score: 3, Insightful

    Why people will happily hand over the intimate details of their lives, in the face of dozens of horrifying Facebook privacy stories, ill never know.

    Here's an interesting question, though: What percentage of Facebook users have been adversely affected by Facebook's privacy ills?

    Have I had a police officer show up at my door with a search warrant because Facebook believes I'm a drug user? Nope.
    Have I been hit on by men because Facebook believes I'm homosexual? Nope.
    Have a group of republicans descended on me because Facebook believes I'm republican? Nope.

    Have I lost a job due to any of the above? Nope. Been denied a loan? Nope.

    Don't get me wrong, I somewhat agree with you. But I'm not sure your "battered wife" analogy stands up in that there is no actual battery going on. If I were to use your analogy, the best I could say is "how can she be married to someone who could beat her, even though he never has?"

  19. Re:Facebook knows that I like fisting? by KGIII · · Score: 2

    Man, I always click to read more on those things unless I've read it before. They must think me a perv which, honestly...

    --
    "So long and thanks for all the fish."
  20. Re:Only 88% accuracy? by fatphil · · Score: 2

    You lose - you failed to even answer the test question.

    The test question is "which of subjects A and B, of which one is straight and one is gay, is the gay one?".

    --
    Also FatPhil on SoylentNews, id 863
  21. I love this stuff by pclminion · · Score: 4, Interesting

    People like to think that they're "undefinable". In fact, all they are are values of a vector random variable. If you know the values of some of the components you can infer the values of others, because they are not all independent. A similar principle (vector quantization) is used in lossy data compression.

    Somebody will come in here and say "No, you can't know for certain, that's what makes us human" -- no, that's what makes you a random variable. A vector-valued one, but a random variable nonetheless.

  22. And...? by zedrdave · · Score: 2

    "I had not selected any political orientation, yet these researchers were able to predict my Democrat leanings, merely based on my 'like' of Barack Obama's page. What witchcraft science is that!?"

    From all I could read of these (repeated) stories, this is so basic it barely even count as data mining. Also, I'd really like to see the the type I and II errors in that thing: sure, the guys who 'liked' a dozen pages for disney musicals might have higher chances of turning out to be gay, but what about the handful who just really like musicals? Same for the hetero guys who support gay friends and will like gay rights pages. And better hope that absolutely nobody out there practices sarcastic liking (but we're safe, because really: who is ever sarcastic online these days).

    Wake me up when we are talking actual science and real data-mining, not two-bit hacking and obvious results.

  23. You should reread that article. by denzacar · · Score: 5, Insightful

    From TFA:

    The Williams Institute found that, overall, an estimated 8.2 percent of the population had engaged in some form same-sex sexual activity. Put another way, 4.7 percent of the population had wandered across the line without coming to think of themselves as either gay or bisexual.

    That same study found out that (from the same FA):

    just 1.7 percent of Americans between 18 and 44 identify as gay or lesbian, while another 1.8 percent -- predominantly women -- identify as bisexual.

    Basically, that "less than 2%" number is the people who think of themselves as being homosexual or bisexual.
    8.2% apparently just like having sex with people of the same sex. Clearly, they're not gay.
    Cause they don't identify with being gay.
    Cause it's all about identifying.

    That's why I always identify myself with Superman.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
    1. Re:You should reread that article. by Zumbs · · Score: 4, Insightful

      8.2% apparently just like having sex with people of the same sex. Clearly, they're not gay. Cause they don't identify with being gay. Cause it's all about identifying.

      That is not what your quote is saying. It is saying that 8.2% of the population has at some point in their life experimented with same-sex sex. It does not say if they liked it nor if it was more than once. It is like going to Church a few times is not the same as being a Christian.

      --
      The truth may be out there, but lies are inside your head
  24. I have no idea what FB thinks about me.... by msevior · · Score: 2

    Coz I browse with the ad-block plugin with Firefox.
    Makes the web a whole lot more enjoyable.

    BTW here is a fun trick. Trying posting a message about Ad-Block on facebook. It will get blocked.

    Next try the most direct method you can think of to tell your friends to try ad-block on facebook. See what gets allowed.....
    Clearly FB has algorithms that censor posts. It is fun to see what really annoys them though :-)

  25. Denial? by Comboman · · Score: 5, Funny

    I'm also a fan of musical theatre, but somehow not gay....wonder how that works?

    Denial?

    --
    Support Right To Repair Legislation.