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MIT Project "Gaydar" Shakes Privacy Assumptions

theodp writes "At MIT, an experiment that identifies which students are gay is raising new questions about online privacy. Using data from Facebook, two students in an MIT class on ethics and law on the electronic frontier made a striking discovery: just by looking at a person's online friends, they could predict whether the person was gay. The project, given the name 'Gaydar' by the students, is part of the fast-moving field of social network analysis, which examines what the connections between people can tell us, from predicting who might be a terrorist to the likelihood a person is happy, fat, liberal, or conservative." MIT professor Hal Abelson, who co-taught the course, is quoted: "That pulls the rug out from a whole policy and technology perspective that the point is to give you control over your information — because you don't have control over your information."

45 of 508 comments (clear)

  1. I beg to differ by laron · · Score: 4, Insightful

    "That pulls the rug out from a whole policy and technology perspective that the point is to give you control over your information -- because you don't have control over your information."

    I have control over my information. And that is why you wont find be on Facebook.

    --
    "Beware of he who would deny you access to information, for in his heart he dreams himself your master."
    1. Re:I beg to differ by Anonymous Coward · · Score: 5, Funny

      There aren't any, and that's how I want it to be :-)

    2. Re:I beg to differ by sabernet · · Score: 4, Insightful

      But your friends know you. And they may, in fact, be posting information about you. Everything from tagging pictures to leaving notes. You have no control over this.

    3. Re:I beg to differ by vux984 · · Score: 4, Interesting

      But your friends know you. And they may, in fact, be posting information about you. Everything from tagging pictures to leaving notes. You have no control over this.

      That's true to a point. But on some level that's not 'your information' that's others information about you. You couldn't stop your friends from outing you as gay or communist or vegetarian in the 60s and you can't today. Facebook isn't really a factor.

      However, in terms of data mining and automated profiling etc its worse if you have a facebook account than if you don't. If someone tags a non-FB member its just a name attached to a photo. It doesn't really go anywhere. Its true that someone could see it or read a note mentioning you and connect it to you, or do sophisticated data mining to link all those references together and assemble a profile... but if you tag someone who is a fb member (the way they want you to) it creates a link back to that account, making it utterly TRIVIAL to connect it back to you.

      I'm not on facebook. So while there may be some pictures on it with my name tagged to them, its not really any worse than the web in general. My name/photo is together in a few places online, but they aren't all linked together back to a single 'account' somewhere. If there are tagged photos of me on fb its the same, they are their but all disconnected. If you have a facebook account they'd all link back to that.

      My 'privacy' isn't absolute. I don't expect it to be impossible for people find stuff about me online. But I do object strongly to stuff like facebook where a single company is handed tons of data self-documented by its own users... its idiotic that anyone would participate.

    4. Re:I beg to differ by Bill,+Shooter+of+Bul · · Score: 5, Funny

      And yet you registered for a slashdot account.

      --
      Well.. maybe. Or Maybe not. But Definitely not sort of.
    5. Re:I beg to differ by chromas · · Score: 5, Funny

      Data miners mining minors' data

    6. Re:I beg to differ by Alrescha · · Score: 4, Interesting

      "Do you actually have the slightest idea what you just said? I understand that America-bashing is fashionable these days..."

      It would help if we didn't make it so easy. Like it or not, America is the gold-standard for 'sex is bad' (and 'skin = sex', therefore 'skin = bad'). Of course we inherited a goodly part of the from our English cousins, which brings us to:

      "Ask Alan Turing about how tolerant Europeans can be about sexual orientation."

      Alan lived and died in England, where his sexuality was illegal. I'm not sure if England considers themselves 'European' yet, but certainly most countries (not all) in continental Europe were more tolerant about sexual preference 50 years ago than most Americans today.

      A.

      --
      ...bringing you cynical quips since 1998
    7. Re:I beg to differ by couchslug · · Score: 5, Funny

      "And yet you registered for a slashdot account."

      My social interaction is restricted to 4chan where my info will be respected.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
    8. Re:I beg to differ by epine · · Score: 4, Insightful

      And people can still google it and it can still ruin your life.

      Do you feel beholden to the idiots who make snap judgments of others based on indirect or second hand information? These McCarthyists with their lists of Facebook URLs have the power to ruin your life? How so? Why is it you've delegated this power to others who lack the wits to exercise considered judgment? Or is it instead the case that the photos from your personal life present you doing things that no reasonable person would do?

      There's an element of chicken shit to take the anonymous court of public opinion quite so seriously. It often stems from the desire to substitute dignity with irreproachableness. Part of the deal with dignity is accepting that you can't force others to draw the right conclusions. If you take the opposite approach and try to control what people conclude about you, you'll discover one of two things: a) you're sucking up to the rich and powerful, or b) the people whose opinions you have successfully shaped have no significance. Option (a) works, if that's what you want.

      I'm personally looking forward to the generation where when you look for someone on the web, and find nothing at all, you judge what that person might be hiding more seriously than you judge the ordinary defects of those who fear less to make themselves known.

    9. Re:I beg to differ by bughunter · · Score: 5, Funny

      I just assumed you had a cold.

      (And a speech-to-text interface.)

      --
      I can see the fnords!
    10. Re:I beg to differ by Zaphod+Beeblibrox · · Score: 4, Funny

      Thanks a lot, you insensitive clod!!

    11. Re:I beg to differ by AK+Marc · · Score: 5, Insightful

      As bad as it is in the US,

      Too late. If it's bad, I don't care where it's worse. It's bad in the US. Go to some place like New Zealand. You'll find many straight people saying "partner" in relation to their spouse or unmarried life partner. When the terminology is such where a committed pair of gays and a committed straight couple can talk without having the words they choose reveal something about themselves, then you know you are free. The US still pushes terminology that separates gays. If they want to talk family at work, they either have to lie, or they are revealed in the first sentence. Tolerance isn't trying to pretend it doesn't matter. Tolerance is an apathy of the personal details of others. Masturbate to wildlife videos of seals mating? I don't care. Don't hurt seals, and I'll never bother you. But in the US, someone that thinks oddly is persecuted. For a country that prides itself on the freedom of speech and the freedom of thought that's considered even more important, there's a lot of persecution for thoughtcrimes like liking someone in "that way" that you don't approve of.

  2. Solution by kk49 · · Score: 4, Funny

    Friend Everyone...

    --
    You can have your god back when you are old enough to handle the responsibility.
  3. MIT Gaydar should be Facebook app by MSTCrow5429 · · Score: 5, Interesting

    I am really curious if it thinks I'm gay (does it consider bisexuality?). Also, this could be useful as a dating tool; if you don't know if the object of your affections is gay or not, run them through MIT Gaydar, and then possibly feel more secure about asking them out.

    --
    Slashdot: Playing Favorites Since 1997
    1. Re:MIT Gaydar should be Facebook app by IANAAC · · Score: 5, Insightful

      Also, this could be useful as a dating tool; if you don't know if the object of your affections is gay or not, run them through MIT Gaydar, and then possibly feel more secure about asking them out.

      Or, you know, you could just take the time to get to know someone a bit before asking them out. 'Course, you'd have to log off and go out into the real world to to that.

    2. Re:MIT Gaydar should be Facebook app by Kell+Bengal · · Score: 4, Funny

      Does it also take into account if all your friends are women? If they're all members of a musical theatre troupe? If one of your friends is your mother...

      --
      Scientists point out problems, engineers fix them
      altslashdot.org: The future of slashdot.
    3. Re:MIT Gaydar should be Facebook app by bertoelcon · · Score: 4, Funny

      Where can I download this "real world" you speak of? Is it a one time purchase or a subscription fee?

      --
      Anything can be found funny, from a certain point of view.
    4. Re:MIT Gaydar should be Facebook app by noundi · · Score: 4, Insightful

      My Kingdom for a mod point! Not being able to ask someone out for fear of mutual embarrassment and summary rejection is surely a weighty cross to bear.

      That is solved by socially accepting homosexuals, not by probing them.

      --
      I am the lawn!
    5. Re:MIT Gaydar should be Facebook app by Kell+Bengal · · Score: 4, Insightful
      I disagree that the US considers people gay on the basis of what they do. There are lots of counter examples of people who aren't the way they act: closet gays, bicurious, abstaining gay christians, lifestyle gays, metrosexuals, gay until graduation.

      Some act gay but aren't, some explore 'alternative' sexualities but never feel that they aren't straight, some clearly self-identify as gay but don't actually have same-sex intercourse. Despite the world's efforts to put us all into convenient pigeon holes, sexuality is a complex spectrum that doesn't lend itself well to assumptions.

      --
      Scientists point out problems, engineers fix them
      altslashdot.org: The future of slashdot.
    6. Re:MIT Gaydar should be Facebook app by Hognoxious · · Score: 4, Funny

      Yeah, someone should set up a company where people put in their interests and stuff, and it finds another member who matches then introduces them. Sounds like a possible application for them there newfangled computer doohickeys.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    7. Re:MIT Gaydar should be Facebook app by Hognoxious · · Score: 5, Funny

      [Spock eyebrow raise]

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    8. Re:MIT Gaydar should be Facebook app by mobby_6kl · · Score: 5, Funny

      Or whether your last session originated from a Mac or not? And how about if you talk about, or have pictures of, Mazda Miatas in your profile?

    9. Re:MIT Gaydar should be Facebook app by scragz · · Score: 4, Funny
    10. Re:MIT Gaydar should be Facebook app by RiotingPacifist · · Score: 4, Funny

      It's not worth it it only comes in lo-def and you only get a trial version that expires after a short period, but worst of all its closed source so you never know whats going on!

      --
      IranAir Flight 655 never forget!
    11. Re:MIT Gaydar should be Facebook app by glwtta · · Score: 5, Insightful

      Just about every kind of identity in the U.S. seems wrapped around what one does, what one has or his position.

      Right, because we don't have things like gender, race, or age in the US.

      Anyway, sorry to disrupt the "I'm so damn straight!" fest.

      --
      sic transit gloria mundi
    12. Re:MIT Gaydar should be Facebook app by Hognoxious · · Score: 5, Funny

      That probably didn't come out exactly the way you expected.

      It was probably a surprise when it went in too.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    13. Re:MIT Gaydar should be Facebook app by rohan972 · · Score: 5, Insightful

      My Kingdom for a mod point! Not being able to ask someone out for fear of mutual embarrassment and summary rejection is surely a weighty cross to bear.

      That is solved by socially accepting homosexuals, not by probing them.

      Do you think that heterosexuals don't hold back from asking people out for fear of mutual embarrassment and summary rejection?

      Maybe it's because you're skinny or have acne, not much money, not socially confident etc, etc. No matter how well gays are accepted everyone still risks rejection when they ask someone out. I'm not sure that "No, I'm not gay" is more hurtful than "No, I don't like you" as a rejection. I think there is no way to make rejection more palatable. You just have to learn to deal with it, part of that being more selective who you ask.

  4. Well, that seems cut & dried... by Angostura · · Score: 5, Insightful

    From the article:

    The two students had no way of checking all of their predictions, but based on their own knowledge outside the Facebook world, their computer program appeared quite accurate for men, they said.

    ...The work has not been published in a scientific journal...

    I once wrote a computer program that predicted coin tosses. I didn't check, but I'm pretty sure that if I had tossed a coin that the predictions would have been accurate.

    1. Re:Well, that seems cut & dried... by Ritchie70 · · Score: 4, Informative

      Also according to the article, they ran it against 10 friends who they know to be gay but who aren't "out" on Facebook. It hit 100%.

      Too small a sample to be sure, but still significant.

      The whole thing just boils down to "people who are ____ tend to have friends who are also ____.

      Insert gay, straight, Christian, Moslem, male, female, old, young, black, white, whatever.

      --
      The preferred solution is to not have a problem.
    2. Re:Well, that seems cut & dried... by 19thNervousBreakdown · · Score: 4, Interesting

      A couple friends of mine once wrote software to predict market commodities price changes. They had a huge dataset, the last 10 years worth of every commodity price. They tweaked it, and tweaked it, and tweaked it, and in the end it made a consistent profit over their entire dataset. Then they both invested $2,500 each, and it steadily lost every cent of it over less than a year.

      It's easy to come up with a model that matches your data without even realizing it, this sounds like the exact same thing.

      --
      <xml><I><am><so><damn>Web 2.0</damn></so></am></I></xml>
  5. Incomplete headline by straponego · · Score: 4, Insightful

    Should be: MIT Project "Gaydar" Shakes Privacy Assumptions of Stupid Twats Who Still Won't Care

  6. I'm still safe... by celibate+for+life · · Score: 5, Funny

    I just hope they don't invent a virgin-radar.

    1. Re:I'm still safe... by Archaemic · · Score: 4, Insightful

      With a username like "celibate for life", they don't really have to invent anything to tell you're a virgin.

    2. Re:I'm still safe... by Anonymous Coward · · Score: 5, Funny

      If you're posting on Slashdot you've already been outed.

    3. Re:I'm still safe... by Tablizer · · Score: 4, Funny


        +5 Virgin

  7. It's simple really... by mikael · · Score: 4, Funny

    There are a couple of fields of personal data in facebook which state your marital status, and whether you are looking for a man or woman. It might just be possible from analyzing these details, which way you swing.

    --
    Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
  8. Re:Not exactly rocket surgery! by guyminuslife · · Score: 4, Insightful

    Likewise, if twenty-five of your thirty Facebook friends are gay and of the opposite gender as you, they conclude you're probably single.

    --
    I don't believe in time. It's a grand conspiracy designed to sell watches.
  9. FB's datamining for ads works the same way by Anonymous Coward · · Score: 5, Informative

    When I first used FB, I kept most of the personal information blank. I only told it my age, that I was male, and that I was in a relationship and not looking for one.

    FB at once started serving up gay-oriented ads. I never clicked on any of them or in any other way expressed interest, yet over time the percentage of these seemed to increase.

    I finally gave up, and filled in the "interested in" section. The moment that field went from blank to "women", the gay ads vanished.

    It isn't clear whether FB actually thought that I was gay, or just sought to pressure me into answering more questions about myself. If the former, its algorithms are entirely too simplistic. If the latter, it's evil.

  10. Old news by paradigm82 · · Score: 5, Interesting

    This is old news (and really pretty obvious) and have been known in the gay community since FB started :) I have ~250 friends and being gay, quite a few of my friends are gay too. Whenever I click on some new person I can usually tell whether that person is gay (at least if it's a guy) or not, simply based on the number of gay friends we have in common (i.e. I don't even need to look at that person's friends individually to see whom of them are gay). So if we don't have any friends in common at all, it's usually a sign that the person isn't gay. Now, being from a small country (Denmark, 5.5 mio. citizens) implies a smaller gay community, but I would still think this observation would be valid in other countries at least within cities. The reason this works is of course that within all communities there are certain people who have _a lot_ of friends on Facebook and sort of serve as "magnets", in the sense that someone in the same community is likely to sooner or later run into that person and be added as a friend on Facebook - or at least run into one out of the "magnet" persons you are friends with.

  11. Re:Party games by quantaman · · Score: 4, Funny

    Just like sleeping with large numbers of the same sex does not make one gay

    fixed that for you

    --Ted Haggard

    --
    I stole this Sig
  12. Confirming sayings by Tarrio · · Score: 4, Insightful

    There's a Spanish saying, "tell me who you are with and I'll tell you who you are". I guess this is scientific proof.

  13. Rick Romero is on the scene. by captjc · · Score: 4, Funny

    I think the MIT people are simply too infatuated with cult of technology.

    This just in, people at the Massachusetts Institute of Technology love technology!

    --
    Slow Down Cowboy! It's been 1 hour, 47 minutes since you last successfully posted a comment
  14. Re:you are wrong. by Blakey+Rat · · Score: 5, Insightful

    You have two concepts confused:

    1) What features women say they find attractive in men
    2) What features women *actually* find attractive in men

    The two are not even remotely close to the same.

  15. Re:you are wrong. by mick88 · · Score: 4, Insightful

    Don't get me wrong - I love slashdot. But I have to disagree that posting on slashdot raises your logic quotient. 50% of the reason why I skim posts is to watch the irrational / illogical comment wars unfold. It's kinda fascintating.

    --
    I created this account just so I could comment on this story
  16. Re:you are wrong. by phantomfive · · Score: 4, Funny

    Sensuality + respect + kindness = the kind of man no woman can resist. Gotta respect yourself and her, though.

    --
    Qxe4