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Cloud-Powered Facial Recognition Is Terrifying

oker sends this quote from The Atlantic: "With Carnegie Mellon's cloud-centric new mobile app, the process of matching a casual snapshot with a person's online identity takes less than a minute. Tools like PittPatt and other cloud-based facial recognition services rely on finding publicly available pictures of you online, whether it's a profile image for social networks like Facebook and Google Plus or from something more official from a company website or a college athletic portrait. In their most recent round of facial recognition studies, researchers at Carnegie Mellon were able to not only match unidentified profile photos from a dating website (where the vast majority of users operate pseudonymously) with positively identified Facebook photos, but also match pedestrians on a North American college campus with their online identities. ... '[C]onceptually, the goal of Experiment 3 was to show that it is possible to start from an anonymous face in the street, and end up with very sensitive information about that person, in a process of data "accretion." In the context of our experiment, it is this blending of online and offline data — made possible by the convergence of face recognition, social networks, data mining, and cloud computing — that we refer to as augmented reality.'

57 of 286 comments (clear)

  1. Google decided against this. by 605dave · · Score: 4, Interesting

    This is why Google shelved their version of this tech. The implications were too big.

    --
    Be kind, for everyone you meet is fighting a difficult battle. - Plato
    1. Re:Google decided against this. by rwa2 · · Score: 4, Funny

      This is why Google shelved their version of this tech. The implications were too big.

      I don't know... I fed my pr0n directory to Picasa's face recognition, and the results were pretty awesome.

    2. Re:Google decided against this. by AliasMarlowe · · Score: 4, Funny

      This is why Google shelved their version of this tech. The implications were too big.

      I don't know... I fed my pr0n directory to Picasa's face recognition, and the results were pretty awesome.

      You mean there are people with noses shaped like... that?

      --
      Those who can make you believe absurdities can make you commit atrocities. - Voltaire
  2. We knew it was coming by wiggles · · Score: 3, Insightful

    It was only a matter of time. This has been one of the most sought after anti-terrorism tools of the last 10 years. Imagine the security implications! I'd be shocked if NSA didn't already have a version of this operational 5 years ago.

    1. Re:We knew it was coming by DinDaddy · · Score: 2

      Because terrorists all have facebook accounts? I would assume most of them have very little online presence, pictorially anyway.

    2. Re:We knew it was coming by nschubach · · Score: 2

      Duh, of course they don't have Facebook. They have Terrorbook, and most of their faces are partially covered with handkerchiefs or some other items.

      --
      Every time I start to have faith in humanity, I ruin it by driving to work between 7 and 8 am.
    3. Re:We knew it was coming by Gideon+Wells · · Score: 2

      That is the cool but unnerving part of government tech. It is hard to tell how much is over estimated (like 2001's flights to the moon style overestimation), how far they are genuinely ahead and how much of the bleeding edge is released.

      New York was revealed in the media recently to have the tech to track down everyone wearing a "red jacket" through their camera security systems.

      --
      by Anonymous Coward: I, for one, welcome the shift from car analogies to pizza analogies. um.. overlords?
  3. Welcome to the world of tomorrow by Coisiche · · Score: 2

    I already don't like it.

    1. Re:Welcome to the world of tomorrow by Tuan121 · · Score: 2

      I do.

  4. But Facebook... by gurps_npc · · Score: 4, Insightful
    is not dangerous. There is no danger from posting all of the intimate details of your life, with pictures, and pictures of other people (often taken without their permission) using real names.

    Look, I am not a paranoid man. I am perfectly willing to give out private and personal information - for a reasonable fee.

    I give out private information to my bank all the time. In exchange, I get financial services.

    Facebook offers - a) a blog, b) email, c) games, d) convenient log in

    The first 3 are available for free elsewhere, the last is not worth much.

    I'm not paranoid, I'm just not cheap. And Facebook is asking way way too much for the minimal services it provides.

    --
    excitingthingstodo.blogspot.com
    1. Re:But Facebook... by killmenow · · Score: 3, Interesting

      pictures of other people (often taken without their permission)

      One of the reasons I have a facebook account is so I can untag photos others say are me.

    2. Re:But Facebook... by omnichad · · Score: 2

      That's a lot of work. Didn't you know you can change your privacy settings so that tagged photos of you aren't searchable by other people? http://www.facebook.com/help/?faq=267508226592992

    3. Re:But Facebook... by ironjaw33 · · Score: 2

      pictures of other people (often taken without their permission)

      One of the reasons I have a facebook account is so I can untag photos others say are me.

      This is one of my arguments for maintaining a public presence on the internet: control over my image/likeness. When someone Googles my name, the first things they see are my professional webpage, personal webpage, and Facebook account. Anyone else with the same name is pushed to the second page of results. Anything not under my direct control is pushed to the bottom of the first page of results.

      With a Facebook account and publicly available webpages, I am able to broadcast my side of the story and drown out any impostors/naysayers (if anything were to happen).

    4. Re:But Facebook... by Archangel+Michael · · Score: 2

      I tag random photos of others as me. They can't untag a photo that you say is yourself ;)

      I call it FaceBombing (combination of Photo Bomb and Facebook). I wish I could trademark the phrase.

      --
      Agent K: A *person* is smart. People are dumb, stupid, panicky animals, and you know it.
  5. public pics? by killmenow · · Score: 3, Insightful

    This is why I always use a picture like this for any online public pics.

    Note that the pic in question (a) does not show a face clearly and (b) may or may not be me.

  6. Face it by boristdog · · Score: 5, Insightful

    The first real-world, publicly available use of this will be an app that lets you:

    1. Take a picture of someone with your smart phone
    2. Find naked pictures of this person online

    BRB, heading to the local college campus...

    1. Re:Face it by labnet · · Score: 2

      And the next app will be a virtual reality overlay that delivers whatever metrics you like. Health, wealth, criminal history. This will be a boon for criminals!

      --
      46137
  7. Software the future of computing by pvt_medic · · Score: 2

    Think about how much raw power computers have today, and how for the most part we are just using that for word processing/email/internet/music/video. This is just an example of how to utilize this power. Its all about software now, this is just another example of how databases will continue to interact more and more. There are great possibilities for how this can be used (and horrible options as well) but think about medicine being able to identify a John Doe who is brought into the Emergency Department, or your home security system identifying who is knocking at the door. And of course, this technology is not new, its just finally coming out for public usage.

    --
    30% Troll, 50% Underrated, 10% Interesting
    Score:5, Troll
  8. Sigh by IWantMoreSpamPlease · · Score: 4, Insightful

    Time to start dressing like The Stig again.

    --
    So rise up, all ye lost ones, as one, we'll claw the clouds.
  9. Where Are the Recall Rates? by eldavojohn · · Score: 5, Insightful

    This is why Google shelved their version of this tech. The implications were too big.

    Having studied this in college and witnessed many failed implementations of it I casually ask: Where are the recall rates (see also sensitivity and specificity) of these experiments?

    Because when I read the articles, I found this instead of hard numbers:

    Q. Are these results scalable?

    The capabilities of automated face recognition *today* are still limited - but keep improving. Although our studies were completed in the "wild" (that is, with real social networks profiles data, and webcam shots taken in public, and so forth), they are nevertheless the output of a controlled (set of) experiment(s). The results of a controlled experiment do not necessarily translate to reality with the same level of accuracy. However, considering the technological trends in cloud computing, face recognition accuracy, and online self-disclosures, it is hard not to conclude that what today we presented as a proof-of-concept in our study, tomorrow may become as common as everyday's text-based search engine queries.

    How you want to decide Google passed on continuing down this road is up to you. Frankly, I would surmise that the type I and type II errors become woefully problematic when applied to an entire population. Facial recognition is not there yet, not until I see some hard numbers that convince me the error rate is low enough. Right now I bet if you were to snap pictures of 10,000 people, you would incorrectly classify at least 100 of them leading to wasted time, violated rights and wasted opportunity (depending on the misclassification).

    --
    My work here is dung.
    1. Re:Where Are the Recall Rates? by pinkwarhol · · Score: 2

      Right now I bet if you were to snap pictures of 10,000 people, you would incorrectly classify at least 100 of them...

      thats only a 1% error... is that supposed to make me feel more comfortable? Sounds like the technology works pretty well, pragmatically...
      Anyway, sounds mildly-moderately threatening to general privacy. Who's paying for this?

      FTFA, grants from:
      National Science Foundation, grant # 0713361
      US Army Research Office, contract # DAAD190210389

      How much?

    2. Re:Where Are the Recall Rates? by Anonymous Coward · · Score: 2, Interesting

      Depends what the inconvenience is. If it's a quick background check with no lasting effects (i.e. not being added to a do-no-fly list or terrorist watch list or your record or subjecting you to public humiliation or arrest), then perhaps... If it's a 5 year vacation in Guantanamo without access to legal counsel, then no way--that would be a horrible perversion of justice!

      Consider this question: Do only famous people have look-a-likes? Why would that be, especially since famous people often look non-average in some way? If they have many look-a-likes, then the rest of us certainly do. I think most people have met someone who says, "Are you so and so--you look just like them?" or has someone tell them that they saw someone the other day who looked just like them. In short, we ALL have many look-a-likes, they just don't seek us out since we're not famous, and thus we are unlikely to meet most of them, and vice versa.

      So you have many large pools of facial synonyms, if you will that will, that all potentially result in false-positives with regard to each other or to one *really* unlucky member of the pool. If one of them happens to be a terrorist, then you're in for a world of trouble just because you happen to look like them.

      So if we start applying this tech to the population at large, we had better be certain that the consequences of a false match WHEN IT HAPPENS are acceptable, legally, ethically, and morally, or we shouldn't do it at all, IMHOP.

      And that's not even addressing the privacy issues associated with correct identifications...

    3. Re:Where Are the Recall Rates? by Joce640k · · Score: 3, Interesting

      How you want to decide Google passed on continuing down this road is up to you. Frankly, I would surmise that the type I and type II errors become woefully problematic when applied to an entire population.

      I dunno. I bet if you combine the location of a photo with what Google knows about where you live/hang out the results would be pretty good.

      --
      No sig today...
    4. Re:Where Are the Recall Rates? by element-o.p. · · Score: 2

      Depends what the inconvenience is. If it's a quick background check with no lasting effects (i.e. not being added to a do-no-fly list or terrorist watch list or your record or subjecting you to public humiliation or arrest), then perhaps...if we start applying this tech to the population at large, we had better be certain that the consequences of a false match WHEN IT HAPPENS are acceptable, legally, ethically, and morally, or we shouldn't do it at all, IMHOP.

      Not to get on my political soapbox, but have you been living under a rock for the last ten years -- or at least the last one year? You don't think being felt up by TSA at the airport is "subjecting you to public humiliation"? How about this woman who was removed from a Frontier Airlines flight, cuffed, detained, strip-searched, interrogated and finally released? Her crime was nothing more nefarious than sitting next to two men of Indian (the country, not Native American) descent, one of whom was suffering from, ahem, "digestive maladies", and consequently was making frequent and lengthy trips to the restroom, because clearly, three brown-skinned people (her heritage is half Jewish, half Saudi Arabian) sitting together on an airliner making frequent trips to the loo are up to no good </sarc explanation="just in case it wasn't blatantly obvious">

      Personally, I agree with your concerns -- even a 1% false positive rate would be "a horrible perversion of justice." As Plato said, "It is better that a hundred guilty men go free than for even one innocent man to be punished unjustly." Unfortunately, in post-9/11 U.S.A., the majority has apparently -- and wrongfully, IMHO -- decided that it's better that one hundred innocent men (and women) be punished unjustly than even one guilty man go free :/ So while I agree that what you described is the way it should be, I think you are very, very mistaken if you think that is the way it IS .

      --
      MCSE? No, sir...I don't do Windows. Yes, I am an idealist. What's your point?
  10. I'm glad I have a clone ... by oneiros27 · · Score: 2

    Of course, they just managed to link to *someone* ... did they then ask the person to confirm if they were correct?

    I have a LinkedIn page, but without a picture. My twin brother on the other hand, uses Facebook, while I don't. (I'm rather sensitive about my info being out there, after having a stalker during undergrad) So, it's entirely possible that they would've gotten information from my face ... but unlikely that it'd have been my information

    In this case, the error might still lead them to me, as my brother would recognize me if they showed him the picture ... but how many other incorrect matches might there have been? Just getting *a* match is not the same as getting the *correct* match.

    --
    Build it, and they will come^Hplain.
  11. Nothing to worry about! by fuzzyfuzzyfungus · · Score: 2

    As always, the completely innocent, not socially related to anybody not completely innocent, totally conformant with local and regional cultural and lifestyle standards, possessing enough money to not be of interest to debt collectors; but not so much as to be of interest to marketers, not being followed by any stalkers/vindictive exes/etc., people have Absolutely Nothing To Fear!

    Fucking luddites. Go tighten your tinfoil hats.

  12. Low cost workaround... by condition-label-red · · Score: 3

    Burkas for *EVERYONE* !!!

    --
    Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
    1. Re:Low cost workaround... by atisss · · Score: 2

      Already forbidden in France / Switzerland

  13. who killed privacy? by circletimessquare · · Score: 3, Insightful

    you did

    it's funny that the tech industry holds some of the most privacy-concerned individuals, yet all their dedication to their craft has done is provide the most privacy destroying entity ever to exist

    privacy is dead as a doorknob. just forget about the concept. really, you needn't bother about privacy anymore, it's a nonstarter in today's world. big brother? try little brother: every joe shmoe with a smart phone with a camera has more power than the NSA, KGB, MI6, MSS: those guys are amateur hour

    i'm not saying it's wrong, i'm not saying it's right. i'm just saying it's the simple truth of the matter, right or wrong: privacy is dead. acceptance is your only option now. you simply can't fight this

    and government didn't kill it, you paranoid schizophrenic goons

    your technolust did

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
    1. Re:who killed privacy? by Kazymyr · · Score: 3, Insightful

      it's funny that the tech industry holds some of the most privacy-concerned individuals (..)

      That is only if you believe the all-caps paragraphs on all the EULAs and TOS you click through. Often the following paragraphs will contradict the bombastic declarations of commitment to privacy - on the same page.

      --
      I hadn't known there were so many idiots in the world until I started using the Internet -Stanislaw Lem
  14. Hysteria by feenberg · · Score: 2

    They say the false accept rate is .001, or one in a thousand. That is, they can extract about 10 bits of information from a picture. From those 10 bits they claim to get the SSN? Or, they have the picture of a person, and need to identify them in a sample of a million people, they will get back 1000 possible matches.

    The complaints about privacy seem greatly overblown. In essence they are saying that if you post a picture with your name, and then another picture without your name, someone with a million dollars of software might recognize the similarities. Of course they might without the computer too. This is just another in the long line of "security" scares which presume that items of public knowledge such as your appearance, name, DOB and SSN can be turned into a secret passwords after 40 years of being public knowledge. The security experts should be spending their time convincing banks not to pretend an SSN is a secret, rather than enabling them by agitating for legislation to make it so.

  15. Re:New hobby by Nadaka · · Score: 2

    Not if you live in new york city. Wearing a mask is a crime.

  16. Finally, a wake-up call on privacy policy? by SirGarlon · · Score: 2

    The implications of this look big enough to concern even the apathetic, non-technical majority. Perhaps this will finally motivate the long-needed policy reform on privacy in the digital age.

    --
    [Sir Garlon] is the marvellest knight that is now living, for he destroyeth many good knights, for he goeth invisible.
    1. Re:Finally, a wake-up call on privacy policy? by MrAngryForNoReason · · Score: 2

      Finally, a wake-up call on privacy policy?

      I am not sure what point you are trying to make here. The article talks about them matching a picture taken in public, with information such as images from facebook which are also set as public. Where is the violation of your privacy?

      If you don't want random people in the street to be able to look at your facebook pictures then don't put them online, or make them as private.

      Aggregating public information doesn't suddenly create privacy violations.

  17. 98% Accurate! by bigtrike · · Score: 4, Interesting

    You mean to tell me that 98% accuracy when trying to spot terrorists in airports isn't good enough? That's only 200,000 false positives per year for a typical airport.

    1. Re:98% Accurate! by Pieroxy · · Score: 5, Informative

      Let's take JFK. From Wikipedia:

      In 2010, the airport handled 46,514,154 passengers

      2% of that is almost a million people. Every year. Now, let's assume handling each these false positives is the work of an hour on average. That's about a million hours spent.

      Let's assume a workday of 8 hours, and 250 workdays a year. That's about 2000 hours a year for an average worker. So it'll take 500 people to track these false positives at JFK.

      I think it's a little unacceptable, but YMMV of course.

    2. Re:98% Accurate! by Smallpond · · Score: 2

      First off. facial recognition is already widely used -- by casinos. The way it works is that if it matches you to a known cheat (or maybe MIT Math Major) then they just either watch you or bar you from the casino. They don't waste any time chasing down false positives. They just continue to improve their software, which is probably better than the commercial stuff now.

      The simplest thing is for TSA to do is to just make an extra check on your documentation and bar you from flying if anything is amiss. Why spend any time tracking anything? When has the TSA ever had to reveal or explain anything they do?

    3. Re:98% Accurate! by Paracelcus · · Score: 2

      Sorry but this pop-culture fixation on "terrorists" has been hijacked by the US Government to facilitate the systematic abrogation of all civil liberties and constitutionally guaranteed rights with the approval and assistance of the oppressed, (US).

      We are no safer, the rogue government is infinitely more dangerous to the American people than "terrorists".

      --
      I killed da wabbit -Elmer Fudd
    4. Re:98% Accurate! by robot256 · · Score: 2

      When has the TSA ever had to reveal or explain anything they do?

      When they get a call from an angry congressperson about the treatment their relative/friend/self just received.

      A private business is allowed to deny you entry to their property for no reason at all. So far, we have been operating under the assumption that the government is *not* allowed to deny you passage on a private airplane for no reason at all. Yes, they have tried, but the truth is they are not yet completely above the law.

      Of course, personally, I don't feel the need to give them that opportunity. I take the train whenever I can.

  18. For example, this is dangerous for women by aestheticpriest · · Score: 5, Interesting

    I am a good looking female. When I was a waitress I had a stalker at my workplace. Because the schedule was posted in view-- not a clear view, but view enough for him to find an opportunity to read it without looking suspicious-- he consistently showed up during work hours and tried to follow me home. I didn't have a car, so I walked home alone in the middle of the night; I worked 3rd shift at a 24-hour diner. This might seem like a poor choice, but I desperately needed a job. With this technology a stranger could find out who I am through a picture of me taken with his cellphone. This is also dangerous for people in the sex industry who are already way more vulnerable to stalking than I was walking home from 3rds at a diner. I'm now doing amateur porn-- difficult to resist when it earns an unskilled laborer a grownup sized income for part time hours-- but my image is everywhere online.

    1. Re:For example, this is dangerous for women by HangingChad · · Score: 4, Funny

      I am a good looking female.

      On Slashdot? Are you lost?

      --
      That's our life, the big wheel of shit. - The Fat Man, Blue Tango Salvage
    2. Re:For example, this is dangerous for women by icebraining · · Score: 2, Informative

      Yes, now besides getting raped, she can be shot too!

    3. Re:For example, this is dangerous for women by cayenne8 · · Score: 2

      Yes, now besides getting raped, she can be shot too!

      Well, that's the thing.

      You do not carry a gun...unless you are prepared to use it when needed without flinching.

      I, for one...have no compunction about unloading a magazine into someone that is threatening to do me bodily harm...ESPECIALLY if it is in my own home.

      If you're not willing to pull that trigger, then no...don't carry a gun, it will likely end up being used on you (assuming of course they don't have one already).

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
    4. Re:For example, this is dangerous for women by cayenne8 · · Score: 2

      I'm now doing amateur porn-- difficult to resist when it earns an unskilled laborer a grownup sized income for part time hours-- but my image is everywhere online.

      What? No links???

      If you've got a pr0n website for $$...I'd have to think a link on Slashdot would bring a fortune in a day....if it could handle the slashdotting....

      --
      Light travels faster than sound. This is why some people appear bright until you hear them speak.........
    5. Re:For example, this is dangerous for women by MrAngryForNoReason · · Score: 2

      I understand that unwanted attention from anyone can be unpleasant, upsetting and in some cases dangerous. But your experience shows that this kind of technology isn't required for that to be the case. A guy stalked you, tried to follow you home and made you feel threatened, and he didn't need to look you up online to do that.

      He could well have searched for you online. Finding out your name could be as easy as overhearing a co-worker calling for you, or reading your name badge. But to a large extent the amount of information available about you online is up to you. If you have your full address, telephone number and email on Facebook set to public so anyone can see it then yes of course you put yourself more at risk of unwanted contact from strangers.

      What experiments like the ones talked about in this article show is that it is easy to find online information about someone *if* the information is there. If your only your friends can see your facebook profile and you are generally careful about not splashing your personal details around the web then this kind of search is going to come back with very little.

    6. Re:For example, this is dangerous for women by religious+freak · · Score: 2

      There is training that is very good (I personally take it). If your point is that many carry without preparing themselves for the possible scenarios that will likely take place under a shoot/don't shoot scenario, I agree. But if your point is that it's best not to carry at all, I don't.

      Outside of staying close to a man, the only real thing a 120lb woman can do to physically protect herself is to carry. I've met some amazingly good women fighters, but even they wouldn't have a chance against 50% of the male population. Men are built to fight. The ability to carry is a womens' rights issue, IMHO.

      --
      If you can read this... 01110101 01110010 00100000 01100001 00100000 01100111 01100101 01100101 01101011
    7. Re:For example, this is dangerous for women by GameboyRMH · · Score: 2

      She should get some of those .50cal cartoon guns (Desert eagle?) and take pics of herself in sexy nude poses with them :-P=

      Hey she said she's a porn star, it's legitimate career advice.

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    8. Re:For example, this is dangerous for women by GameboyRMH · · Score: 2

      if it could handle the slashdotting....

      Hot server pounded all night by gang of horny geek studs (5 stars)

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    9. Re:For example, this is dangerous for women by icebraining · · Score: 2

      Frankly, I don't know if I want to be a person who has no problem shooting another, even if (s)he poses a danger to me. The repercussions of that would be disturbing.

    10. Re:For example, this is dangerous for women by readin · · Score: 2

      That being said, I dunno why other people seem to have some apprehension as to why they don't think they'd unload on someone to protect themselves, their family or property.

      Simple, doubt about whether the person is really a threat. You see someone chasing your son and hitting him on the back and shoulders - it turns out they were being chased by hornets and the guy was trying to knock the hornets off your son's back. (A year ago I was seen chasing someone's kid and hitting him for that very reason.)

      You wake up in the middle of the night to investigate a noise - you see someone hunched over your wife who fell asleep on the couch - he turns and approaches you - is that your teen-aged son or an intruder. You go to your teen-aged daughters room and see a man - intruder or ill-behaved daughter's boyfriend?

      You come home during the day and find a man in your house. He turns to face you and he has a large metal object that could be used as a wrench. Intruder or did your wife call the plumber?

      Now these decisions aren't terribly hard, but the cost of making the wrong decision and shooting to kill an innocent are so enormous that most sane people will pause to make sure they're right before pulling the trigger. That's enough time for a bad guy who is much less likely to hesitate.

      So the parent is right. If you're going to carry, get some good training like the police do to decide when to shoot and when not to - training that includes practice.

      --
      I often don't like the choices people make, but I like the fact that people make choices. That's why I'm a conservative.
  19. False positives OK at airport? by drnb · · Score: 4, Insightful

    You mean to tell me that 98% accuracy when trying to spot terrorists in airports isn't good enough? That's only 200,000 false positives per year for a typical airport.

    Perhaps the false positives at airports are OK? Rather than randomly choosing people for more attentive searchers, and the occasional grandma to give the facade of fairness and not profiling, we could focus on the 2% who are higher probability. Of course 2% are unfairly inconvenienced but isn't that better than 100% unfairly inconvenienced? Clearly a negative/negative decision.

    Of course this is all academic and falls apart if the false negatives are at a non-trivial level.

    1. Re:False positives OK at airport? by drnb · · Score: 3, Insightful

      Those 2% start to get a bit pissed off after the first two or three times. I suspect we might prefer to stick to random in the interests of fairness.

      The problem with randomness is that it is less effective since finite time is spent on low probability individuals. What is fair about increasing the likelihood that a bad guy gets through an innocents die? I think what you describe is better described as a facade of political correctness than fairness.

      Perhaps the inconvenience could be ameliorated with the known/trusted flier biometric IDs that some are proposing.

      Again, I see the unfair burden placed on the 2%, as I said its a negative/negative decision.

    2. Re:False positives OK at airport? by DrgnDancer · · Score: 2, Insightful

      But if you happen to look like Abul bin Awfulguy it means that you will be inconvenienced every time you go to the airport. Everytime. While that might be fine for you (or might not, did you know you look just like Sean McIRAnut?), it's not exactly great for Robert Hussien. Who's a fourth generation American, and has a security clearance, but convince the automated systems of that why don't you?

      --
      I don't need a million points of light, just two points of multi-mode fiber and a 10 Gig-E router.
    3. Re:False positives OK at airport? by drnb · · Score: 2

      But if you happen to look like Abul bin Awfulguy it means that you will be inconvenienced every time you go to the airport. Everytime. While that might be fine for you (or might not, did you know you look just like Sean McIRAnut?), it's not exactly great for Robert Hussien. Who's a fourth generation American, and has a security clearance, but convince the automated systems of that why don't you?

      If you in fact look like Abul bin Awfulguy or Sean McIRAnut shouldn't security stop you and have a chat to determine if you merely resemble or actually are the person in question? Should a human security agent who thinks he recognizes the aforementioned individuals not do anything unless the random number generator says its their turn for a conversation?

      Again, I see the unfairness to the folks who resemble a bad guy, but I'm not sure the cost of "fairness" is reasonable. Especially if some biometric ID is available for frequent fliers who wish to have such an ID. The security guard calls me to the side and asks me if I am Sean, I provide the gov't issued known flier biometric ID to show that I am actually Seamus. He thanks me for my cooperation and apologizes for the inconvenience, its done in less than a minute. I am then far more inconvenienced as my knees are jammed into the seat in front of me for hours during the flight.

  20. Facebook centric because its academic research by drnb · · Score: 3, Insightful

    Because terrorists all have facebook accounts? I would assume most of them have very little online presence, pictorially anyway.

    Oddly whenever a new terrorist is discovered and remains at large law enforcement and the mass media seem to be able to come up with a facial photo. Perhaps there are sources of photos other than facebook, in particular sources available to government agencies. DMV photo, passport photo, school photos, team photos, etc.

    The experiment is facebook centric because it is an academic project that needs to stick to info made public by the individual to avoid privacy issues.

  21. An odd definition of "wreck" by SuperKendall · · Score: 2

    If you wreck even three hundred lives because your technology isn't accurate enough, that's three hundred too many.

    That statement is correct, yet you have slanted it the wrong way.

    You seem to think the worse error is in false positives. But all that happens is that the person would be selected for extra screening. How is that "wrecking" someone's life?

    Compare that to not trying anything and letting someone take down a place with a few hundred people. Would you not admit that people who die on a place are substantially worse off than people who had to have someone swab luggage?

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
    1. Re:An odd definition of "wreck" by element-o.p. · · Score: 4, Insightful

      There are two logical fallacies in your argument. First, you are presenting a false dichotomy. Second, you are comparing a worst-case scenario (terrorist takes down an airplane, killing hundreds or thousands of people) to a best-case, or nearly best-case, scenario (innocent passenger gets their luggage swabbed).

      What we are talking about is risk management. Risk management is not just a matter of comparing scenarios; it is a matter of multiplying risk probabilities to risk weight (i.e., the severity of that risk), then summing all of the results of that operation. For example, a hijacker crashing an airplane into a building is a very severe risk -- it killed over three thousand people ten years ago -- but it has only happened *ONCE* (okay, four flights) in what...fifty? sixty?...years of airline service. That's a really, REALLY low probability times a really, really severe risk weight, which I'd argue results in a moderately low OVERALL risk. There is also the possibility of a hijacker murdering individual passengers until his (her) demands are met. That's happened significantly more often than a 9/11 hijacking (although still rare, in terms of number of hijacked flights vs. number of uneventful flights), but it directly affects (comparatively) fewer people. However, because it is more common, I'd argue that this scenario results in roughly the same OVERALL risk. Then there is the risk of an unruly passenger. That's much more common than the other two risks, but the risk weight is comparatively minor, which again results in an overall low risk.

      As far as scenarios you are comparing...if all that happens is a false positive gets the luggage swabbed, then I really couldn't care less. If a false positive gets removed from an airplane, cuffed, locked into a cell, strip-searched and interrogated before finally being determined to be a false positive and released then I have a MAJOR problem with it. Consider it this way: if there were 520 people detained in Gitmo and the error rate for false positives (as assumed in the above thread) is 1%, then that means there were likely at least 5 innocent people detained at Gitmo. THAT is what I meant by "wrecked", and I maintain that's an accurate description. Ms. Hebshi's life may not have been wrecked, but I'd say that it has been severely and negatively impacted.

      So, yeah. I do think that the worse error is false positives because the risk probability is significantly higher, and the risk impact is moderate to severe as well, which leads to a much, much greater overall risk than a one-in-twenty-million probability of 9/11, even when multiplied by the impact of the death of 3,000+ people.

      --
      MCSE? No, sir...I don't do Windows. Yes, I am an idealist. What's your point?