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There's a lot of skepticism in this thread. I've actually researched this a bit and there is research suggesting AI-based lie detection to be possible. It will

There's a lot of skepticism in this thread. I've actually researched this a bit and there is research suggesting AI-based lie detection to be possible. It will need a multimodal approach where it's more than just video images though. Also, the use case of border control is a great application. There's a lot of misunderstanding in this thread. The AI screening is just a first screening, and if someone fails that, then they go to a human. So moderate false positive rates are acceptable. The commentators on this thread generally make a few mistakes: assuming lie detectors won't work because polygraphs don't work, assuming the border control use case needs to be perfect or not have false positives (it doesn't), assuming Paul Ekman's microexpressions are all that iBorderCtrl is basing their research on (I agree Ekman's research is questionable, and I don't know what exactly iBorderCtrl is doing, but it seems highly likely they're doing more than just looking for microexpressions), assuming racist intent or that it'll just flag non-Europeans as liars.

driverdan 8y ago
> there is research suggesting AI-based lie detection to be possible [citation needed]
YeGoblynQueenne 8y ago
Yes, of course there is skepticism in the thread. The claim being made is completely ridiculous. I would be very surprised if the "research suggesting AI-based lie detection to be possible" that you mention is from anyone who has any sort of reputation to protect. Machine learning scientists, the vast majority of, would not touch such obvious pseudo-scientific claptrap with a ten-foot pole. It's the kind of thing that tarnishes one's reputation and never washes off. And rightly so. I would not welcome, but grudingly accept, your references to the contrary. Also, if iBorderCtrl are not using Eckman's work, then what kind of theoretical framework are they basing their work on? Why is it "highlly likely they're doing more than just looking for microexpressions"? Where is all the science of detecting lies from looking at peoples' faces? And if they're not basing their work on someone's research, then what are they basing it on?
- YeGoblynQueenne 8y ago
  Well, it turns out, they are using microexpressions - and nothing else: The IBORDERCTRL system has been set up so that travellers will use an online application to upload pictures of their passport, visa and proof of funds, then use a webcam to answer questions from a computer-animated border guard, personalised to the traveller’s gender, ethnicity and language. The unique approach to ‘deception detection’ analyses the micro-expressions of travellers to figure out if the interviewee is lying. From the Commision's website, posted here by another user: http://ec.europa.eu/research/infocentre/article_en.cfm?artid=49726 http://ec.europa.eu/research/infocentre/article_en.cfm?artid...

driverdan 8y ago

> there is research suggesting AI-based lie detection to be possible [citation needed]

YeGoblynQueenne 8y ago

Yes, of course there is skepticism in the thread. The claim being made is completely ridiculous. I would be very surprised if the "research suggesting AI-based lie detection to be possible" that you mention is from anyone who has any sort of reputation to protect. Machine learning scientists, the vast majority of, would not touch such obvious pseudo-scientific claptrap with a ten-foot pole. It's the kind of thing that tarnishes one's reputation and never washes off. And rightly so. I would not welcome, but grudingly accept, your references to the contrary. Also, if iBorderCtrl are not using Eckman's work, then what kind of theoretical framework are they basing their work on? Why is it "highlly likely they're doing more than just looking for microexpressions"? Where is all the science of detecting lies from looking at peoples' faces? And if they're not basing their work on someone's research, then what are they basing it on?

YeGoblynQueenne 8y ago
Well, it turns out, they are using microexpressions - and nothing else: The IBORDERCTRL system has been set up so that travellers will use an online application to upload pictures of their passport, visa and proof of funds, then use a webcam to answer questions from a computer-animated border guard, personalised to the traveller’s gender, ethnicity and language. The unique approach to ‘deception detection’ analyses the micro-expressions of travellers to figure out if the interviewee is lying. From the Commision's website, posted here by another user: http://ec.europa.eu/research/infocentre/article_en.cfm?artid=49726 http://ec.europa.eu/research/infocentre/article_en.cfm?artid...