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Re:An AI Lie Detector Is Going to Start Questioning Traveler... by deft on Thursday November 01, 2018 @03:17AM (#18351904)
Why are lie detectors legal and why were they ever used for anything? We know they don't work. And we know this one won't work any better, because now they've just put the work of sentiment analysis on "AI" vs. a "trained expert".
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by sschueller on Thursday November 01, 2018 @04:27AM (#18352120)
Because movies show them as working and the general public is uniformed. Same goes for forensic tools that are actually possible compared to what TV shows like CSI show.

Iraq and other countries purchases millions of dollars worth of phony bomb detectors. Something anyone with a bit of science education can debunk.

Look at all the things on Kickstarter that are obvious pipedreams or scams yet people invest.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by dsego on Thursday November 01, 2018 @07:30AM (#18352900)
Reminds of local towns buying expensive “smart benches” that really no one uses. Easy way to spend some tax-payer money and give the appearance of investing into sophisticated technology, when it's all cheap off the shelf components from China.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by biglenny on Thursday November 01, 2018 @10:06AM (#18353955)
>Iraq and other countries purchases millions of dollars worth of phony bomb detectors. Something anyone with a bit of science education can debunk.

https://www.vanityfair.com/news/2015/06/fake-bomb-detectors-...

This is a hilarious read.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by TeMPOraL on Thursday November 01, 2018 @11:34AM (#18354914)
This is not hilarious, it's appaling. The person selling this and people buying this are intentionally putting a lot of other people's lives at risk. I fully believe all involved parties should be tried for something at the level of attempted homicide.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by unethical_ban on Thursday November 01, 2018 @10:14AM (#18354036)
Even if they did work, it would be awful.

Our society was built on large amounts of discretion being exercised by law enforcement and the ability to convincingly lie to law enforcement.

Society is going to get flipped on its head if we are able to detect total truth, and enforce all laws with 100% effectiveness. Even worse when these tools will be mostly in the hands of the government, and not the people.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by physicsyogi on Thursday November 01, 2018 @02:01PM (#18356654)
There's a sci-fi novel called _The Truth Machine_ that looks at what happens in a society when a perfect lie detector is introduced.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by del82 on Thursday November 01, 2018 @10:45AM (#18354334)
> Our society was built on large amounts of discretion being exercised by law enforcement

This I get.

> and the ability to convincingly lie to law enforcement.

This less so. Can you elaborate?

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by unethical_ban on Thursday November 01, 2018 @11:15AM (#18354692)
Sometimes, law enforcement can only be lenient (the first part of my original post can only hold) if it's "on the record" that you say something excusable. The LEO might know it's probably a lie, but either they understand a circumstance doesn't merit citation, or they know it's a crappy law.

If everything were some day 100% honest, the polite niceties of "oh sorry didn't see the speed limit change" or "Forgot I left my pocket knife in carryon, sorry" would go away. Of course these are only two of countless examples.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by thfuran on Thursday November 01, 2018 @01:51PM (#18356551)
Eliminating the shit laws is a much better solution than ignoring them or working around them with lies.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by perl4ever on Thursday November 01, 2018 @02:15PM (#18356798)
It seems to me that the concept is basically analogous to the idea people have that we should eliminate the human element from contract enforcement. Or suppose we tried to eliminate all tolerances and slippage in engineering. It's utopian/dystopian and even seriously attempting it would be disastrous, in my opinion. I don't see why people need to touch the hot stove to understand that.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by unethical_ban on Thursday November 01, 2018 @04:28PM (#18358095)
I don't think that's reasonable. Speed limits aren't shit, but it's good to have officer discretion on it.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by Groxx on Thursday November 01, 2018 @05:49PM (#18358806)
so... add a clause for officer discretion, like is already implied to exist? having it as an invisible clause doesn't make it any more or less game-able.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by thecatspaw on Thursday November 01, 2018 @11:19AM (#18354745)
If you cannot lie to law enforcement it makes it a lot harder to overthrow a fascist regime for example.

"Do you have any intention of overthrowing the government?" - "No" - beep, and now you're in a forced labor camp

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by ameister14 on Thursday November 01, 2018 @01:49PM (#18356534)
Are you currently engaged in an activity that may not be in the interest of the Monarchy?
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by eiaoa on Thursday November 01, 2018 @01:20PM (#18356236)
> Society is going to get flipped on its head if we are able to detect total truth, and enforce all laws with 100% effectiveness. Even worse when these tools will be mostly in the hands of the government, and not the people.

Even if these tools worked, they wouldn't be able to detect truth, only belief.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by elliekelly on Thursday November 01, 2018 @11:19PM (#18360455)
Yes, tools like this can be so focused on accuracy and efficiency they forget to account for the value of paper bag compromises: https://www.youtube.com/watch?v=e9YgBF58Qks
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by TheSpiceIsLife on Thursday November 01, 2018 @04:39AM (#18352168)
Five years of reading HN and I’ve seen comments from all sorts of people.

Former inmates, drug addicts, surgeons, lawyers, mechanics, welders, astrophysicist, particle physicists, pilots. Need I go on?

Not once have I read anyone here who’s admitted to being a high level politician.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by ngcazz on Thursday November 01, 2018 @05:56AM (#18352411)
Forgive me for being thick, but is your point that we'd need to have a politician's insight to understand the decision?
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by roenxi on Thursday November 01, 2018 @05:59AM (#18352424)
To paraphrase, the question was "why is this legal when we all know it won't work?" and the answer was "we aren't the people who write the laws".
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by sbhn on Thursday November 01, 2018 @07:19AM (#18352826)
Its legal when a whole bunch of suits standing behind the politician who uses there media priveledge to amplify an issue, are able to syphon without scrutiny, as many tax paying dollars as possible.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by stochastic_monk on Thursday November 01, 2018 @08:56AM (#18353415)
It’s not so much about the fact that taxes are levied as that there is a lack of accountability for how it’s used.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by sambull on Thursday November 01, 2018 @09:35AM (#18353718)
It's real easy to attach a 'hot issue'/ buzzword to a blackbox that allows the security forces to do do whatever they want and get yourself sweet defense funding [0]

[0] https://slate.com/technology/2013/04/dowsing-for-bombs-maker...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by ngcazz on Thursday November 01, 2018 @06:23AM (#18352517)
Makes sense! Thanks.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by Symmetry on Thursday November 01, 2018 @08:06AM (#18353138)
In fairness, there aren't that many high level politicians. And even if one were to read posting and admitting that fact would probably be bad, career-wise.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by gpm on Thursday November 01, 2018 @09:27AM (#18353649)
You could always keep who you are anonymous, 'Member of Congress' isn't identifying enough to be damaging.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by notahacker on Thursday November 01, 2018 @12:03PM (#18355326)
'Member of Congress' can be narrowed down pretty quickly simply to a comparatively short list by considering which Senators or Representatives are slightly likely to be interested in reading about mostly Californian tech companies on a website called Hacker News.

That anonymity disappears much more quickly if said Member of Congress has also posted in the past about where they're from and which political issues they're passionate about...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by Symmetry on Thursday November 01, 2018 @12:03PM (#18355320)
It's a small enough category and people will be interested enough that there's a good chance that a dogged reported could figure it out in a week given a long posting history. I'm pretty sure that if I admitted to being, e.g., the Zodiac Killer or something and people believed it then the FBI would probably be able to figure out my identity even without the link to my Github in my profile. And more importantly you can never be sure that you haven't let something slip that might reveal your identity in a way you didn't anticipate.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by hartator on Thursday November 01, 2018 @05:33AM (#18352339)
Never thought about it but you’re right.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by 131012 on Thursday November 01, 2018 @09:15AM (#18353563)
Hey, the first iteration "was only tested on 30 people". It must work for sure. (Seriously, wtf, 30 people?!?)
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by mannykannot on Thursday November 01, 2018 @10:59AM (#18354491)
I hope the test set included politicians - you need to have some subjects who are verifiably liars.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by brobdingnagians on Thursday November 01, 2018 @12:13PM (#18355443)
Another thing that occurs to me, especially given recent publicity, is how this affects privacy. There are some/many things that are private and which you do not want the government or corporations to know. It is outside criminal actions and therefore none of their business, but if lie detectors become omnipresent, then it will become more and more tempting to use them everywhere to make things "more efficient" and to start everyone and their dog to asking more and more things that are none of their business.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by lucb1e on Thursday November 01, 2018 @02:13PM (#18356775)
I can see the point of trials: as the article says, people told to lie will act very differently from people who want to lie, and a bunch of real-world data versus some lab data is surely going to improve it. I am not convinced that there is nothing about a person that gives away, at least in a good number of cases, whether someone is lying.

I'm just wondering if it's too much to hope that they'll base the decision whether to implement it beyond the trial on data and not on marketing.

And there is of course the argument that it should be possible, albeit with a lot of effort and/or a reasonable punishment, to break the law. (If this was impossible, we'd never get out of regimes we don't agree with, and with the advance of technology I'm afraid we're heading somewhere where a small group is actually able to oppress a huge number of people.)

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by sonnyblarney on Friday November 02, 2018 @02:19AM (#18361034)
Though they are not perfectly accurate, they are generally indicative, so it's useful in a statistical game.

Border agents are trained to look for all sorts of things, none of which make you guilty, but a few of which may make you suitable for more questions or a quick search.

So I'd imagine it'll get used in the same context.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by guy98238710 on Thursday November 01, 2018 @10:20AM (#18354088)
I have seen my algorithm outperform me by a large margin at something I am an expert in. The task was a highly ambiguous visual analysis. The trick is that humans focus too much on strong signals. Algorithms are much better at correctly aggregating lots of weak signals.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by TeMPOraL on Thursday November 01, 2018 @11:47AM (#18355116)
Did the evaluation of algorithm's superior performance included both false positives and false negatives?

Personally, I don't like the concept of deploying algorithms for which we don't understand how they work, in scenarios of high health or social impact. It's cute to deploy DNNs to classify cat pictures, as when - not if - it spectacularly fails, nothing of value is lost. But if you can't point at the verified model the algorithm follows, or at least trace the algorithm after the fact, understanding and assessing every step it took, then that algorithm has no place in making decisions about people's lives.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by Krasnol on Thursday November 01, 2018 @04:29AM (#18352131)
They make a good headline. In this case the Goverments of those countries love headlines that are related to their borders. AI guarding your border sells.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bufferoverflow on Thursday November 01, 2018 @03:32AM (#18351948)
How do you know AI lie detectors don't work?
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by denzil_correa on Thursday November 01, 2018 @03:59AM (#18352040)
The "Burden of Proof" lies on the entity making a claim [0]. Besides, we do know that polygraphs don't work [1].

[0] https://en.wikipedia.org/wiki/Burden_of_proof_(law)

[1] https://www.wired.com/story/inside-polygraph-job-screening-b...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by lucb1e on Thursday November 01, 2018 @02:21PM (#18356867)
We know that a polygraph does not work, but how do we know that this won't work without real-world data?

And nobody is being accused of anything, there is no burden of proof involved yet. If you mean that we can't subject someone to a lie detector while asking questions, i.e. we cannot subject anyone to anything without a reasonable suspicion, then we couldn't have airport security at all unless someone tweeted "today's plane is gonna be da bomb!"

Which would be a lot better than the current state of things in the USA, but that's not how this works.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by rspeer on Thursday November 01, 2018 @03:39AM (#18351971)
Because there is no plausible existing technology by which it would.

And it's a similar promise to a lot of other over-promising AI technologies that don't work, like "fake news detectors".

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bufferoverflow on Thursday November 01, 2018 @03:59AM (#18352039)
"Because there is no plausible existing technology by which it would"

And how do you know that?

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by frankharv on Thursday November 01, 2018 @04:37AM (#18352157)
The polygraph is as useful at catching lies as the Scientologist E-Meter (1) is to testing religion conviction. http://www.cs.cmu.edu/~dst/Secrets/E-Meter/
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by aptwebapps on Thursday November 01, 2018 @05:11AM (#18352270)
This isn't a polygraph. The article calls it a lie detector and we call polygraph tests lie detectors but the claimed mechanism here is a bit different.

I'm not for it, but it's not a polygraph as described.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bufferoverflow on Thursday November 01, 2018 @06:06AM (#18352447)
Except this is new tech, and your only argument is that the old tech doesn't work, which I agree with.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bildung on Thursday November 01, 2018 @06:36AM (#18352563)
AFAIK we don't have a single reliable mechanism of action to reliably detect lying. ML won't change that - without a known mechanism of action, how can you define reliable features to train on?
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by lou1306 on Thursday November 01, 2018 @08:33AM (#18353293)
Heck, the concept of lying itself is a philosophical minefield. No way they solved that. This thing, as stated in the article, just relies on physiological indicators and muscular activity. So it is a polygraph with a shiny layer of buzzwords sprayed on.

All in all, just another worrying piece of news from Hungary.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bufferoverflow on Friday November 02, 2018 @04:34AM (#18361451)
They don't really need to detect lying, they need to detect deception. Which is different, and, I'm pretty sure, possible to detect in most cases with advanced enough technology.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bufferoverflow on Friday November 02, 2018 @04:33AM (#18361447)
So your argument is that you don't know of a mechanism, therefore such a technology is impossible?
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bildung on Monday November 05, 2018 @03:27AM (#18380740)
No offense, but you have no background in science/logic, do you? Of course I didn't say that. One cannot prove that something doesn't exist. That's why I didn't write it.

Please take a step back and look at all the replies to you. They all essentially say the same: We don't know of any reliably objective measurement for measuring lying. Humans can sometimes do that intuitively, yes, but to my knowledge there hasn't been a single successful attempt of a generalization of detection. That's why state of the art means using trained humans, like the airport security in Israel.

Without a mechanism to detect lying without using humans, no amount of statistics (which ML boils down to) can help you. ML can't change the fact that you don't know if the data point is a signal or just noise. Without knowing what the signals look like, ML can't calculate the noise away.

Even simpler: For ML you need a dataset with people lying and people saying the thruth. That's what you train the model on. But we have no way of building that dataset, because, to my knowledge, we don't have a way to reliably build up this dataset: We can't reliably detect if someone is lying.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by realusername on Thursday November 01, 2018 @06:20AM (#18352501)
This isn't new tech, it's going to use micro-gestures which is a questionable science. AI does not mean anything, you need inputs.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by monkeynotes on Thursday November 01, 2018 @09:41AM (#18353757)
This is an interesting article[1], the opinion of the author is that no reliable studies have been conducted as to if humans can detect deceit at all. He is skeptical that machines can deduce deceit using micro expressions.

Quote: "Looking for cues to deception merely from ephemeral facial micro-expressions is questionable and likely fruitless. Micro gestures may be indicative of internal emotional turmoil that is being suppressed, but that is it. The distinguished Paul Ekman, who in fact coined the term micro - expression has stated in his book Telling Lies that micro expressions are rare and they "don't occur that often" (Ekman 1985, 131, 165). Plus as others have said, there is no single behavior indicative of deception (Matsumoto et. al., 2011, 1-4). I am concerned that machines that focus solely on the face will no doubt miss other information from the body (sweating, jittery hand, etc.) or generate lots of false positives because negative emotions abound especially where such machines are intended such as airports (stress of travel, stress of being subjected to searches, or inconvenient interviews, etc) or in a police setting."

[1] https://www.psychologytoday.com/ca/blog/spycatcher/201203/th...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by lucb1e on Thursday November 01, 2018 @02:25PM (#18356903)
After this poor person getting downvoted six levels deep while asking reasonable questions, finally a comment that answers the question. I was wondering the same thing as u/bufferoverflow: sure, polygraphs don't work, but I've never heard of microexpressions being pseudoscience before. Everyone acts as if it's a given that whatever possible lie detector you come up with, it has to be snakeoil.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by TheSpiceIsLife on Thursday November 01, 2018 @05:44AM (#18352372)
As always, the burden of proof lies (knee slap!) with those who claim a lie detector does work.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bufferoverflow on Thursday November 01, 2018 @06:05AM (#18352443)
I didn't make any claims, but the comment I replied to did.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by frankharv on Thursday November 01, 2018 @04:31AM (#18352137)
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by realusername on Thursday November 01, 2018 @03:51AM (#18352013)
Because there's no reliable way which you can tell if people lie or not, putting AI in front of it won't change any of that.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by Jmcdd on Thursday November 01, 2018 @08:08AM (#18353149)
Because _we know_ that AI lie detectors can't currently prove beyond reasonable doubt that someone is lying. https://en.m.wikipedia.org/wiki/Hitchens's_razor
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by samirm on Thursday November 01, 2018 @01:48PM (#18356528)
Repeated lie detector tests do work for most people. It's silly to think that your average joe is trained to control his/her biological responses to that extent. 1 lie detector test never works, a lot of them do.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @03:33AM (#18351955)
Why do you think these won't work? I would think they have a dataset that they're validating them on if they're calling it "AI".

I think it's unlikely that they'll be perfect, but they may very well be good enough to filter people for further, more intensive screening.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by coldtea on Thursday November 01, 2018 @03:54AM (#18352024)
>Why do you think these won't work? I would think they have a dataset that they're validating them on if they're calling it "AI".

You'd be surprised. AI is just a catch-all marketing term, see for example IBM's Watson umbrella brand, that's sold like advanced AI but has had tons of fiascos, and is shown to be different sets of often simplistic implementations.

E.g: https://www.massdevice.com/report-ibm-watson-delivered-unsaf...

https://spectrum.ieee.org/the-human-os/robotics/artificial-i...

https://www.theverge.com/2018/7/26/17619382/ibms-watson-canc...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @11:49AM (#18355142)
You're saying these things won't work because IBM misused the word 'AI'?
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by notahacker on Thursday November 01, 2018 @12:27PM (#18355621)
No, he's saying that we've seen all kinds of absolute garbage marketed using the words 'AI' (Watson is at the relatively complex and useful end of the spectrum) so your suggestion that this project's use of 'AI' as a marketing term implies anything about whether they have an adequate dataset to validate it on is frankly hilarious.

In this case, there's excellent reason to be sceptical about whether the service has a remotely adequate dataset, because even if lie detection were a simple problem, how on earth are you going to get calibration data involving hundreds of data points of real airline passengers lying about having weapons in their luggage or intending to overstay their visa? Never mind calibration data by gender, ethnicity and nationality...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @04:15PM (#18357979)
> No, he's saying that we've seen all kinds of absolute garbage marketed using the words 'AI' (Watson is at the relatively complex and useful end of the spectrum) so your suggestion that this project's use of 'AI' as a marketing term implies anything about whether they have an adequate dataset to validate it on is frankly hilarious.

Usually when people say 'AI', IBM included, what they mean is fairly trivial machine learning. Machine learning requires a dataset to learn on.

> In this case, there's excellent reason to be sceptical about whether the service has a remotely adequate dataset, because even if lie detection were a simple problem, how on earth are you going to get calibration data involving hundreds of data points of real airline passengers lying about having weapons in their luggage or intending to overstay their visa?

You could do it by watching film of interactions with border agents when it is still unknown whether or not the person was lying, and then use whether or not they were caught smuggling (or whatever) ex-post as your ground truth.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by notahacker on Thursday November 01, 2018 @05:40PM (#18358733)
> You could do it by watching film of interactions with border agents when it is still unknown whether or not the person was lying, and then use whether or not they were caught smuggling (or whatever) ex-post as your ground truth.

You're going to need a lot of film. Good luck picking the controls for that that ensure your ML system picks up on subtle differences in humans that are lying and not glaringly obvious differences in appearance, accent and even background noise between the footage of the convicts and the control group...

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @10:38PM (#18360294)
> You're going to need a lot of film. Good luck picking the controls for that that ensure your ML system picks up on subtle differences in humans that are lying and not glaringly obvious differences in appearance, accent and even background noise between the footage of the convicts and the control group...

I assume you would isolate the people in pre-processing, and do feature extraction of things you might think are interested in. Yes, it'd still require a lot of data, but that data may exist somewhere. A lot of these things are filmed.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by coldtea on Friday November 02, 2018 @01:22AM (#18360877)
If anybody had working lie detecting AI, border control pilot in Greece and Hungary (as per TFA) is the last place you'd see it used.

From CIA, and TSA, to your local police department, everybody would have jumped all over it.

This is some vendor managing to sell some BS to bureaucrats (probably with the required bribes).

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Friday November 02, 2018 @11:58AM (#18364003)
> From CIA, and TSA, to your local police department, everybody would have jumped all over it.

If CIA had it, you wouldn't hear about it. I don't see any reason why these countries couldn't pilot it for their border security before TSA, though.

FWIW, polygraphs are still used for security clearance screening. So, they are at least accurate enough for that use. They get a bad rep because they aren't admissible in court, but it's not like they have zero correlation to truth telling. They are still quite accurate.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by coldtea on Friday November 02, 2018 @04:21AM (#18361397)
No, I'm saying people selling something as "AI" doesn't mean:

a) it'll work,

b) it's actually any sort of AI,

and that, for example, even reputable companies like IBM can peddle all kind of shit as AI.

So, IBM was used as an example of a common practice, not as some logical axiom that "because they did it, nothing AI will ever work". Example != logical necessity.

It does, however cast doubt, especially for such a thorny problem as "lie detection", that nobody has, thus far, solved.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Friday November 02, 2018 @12:00PM (#18364011)
Well, let's back up. Lie detection is not completely unsolved. Polygraphs are used extensively by security services for clearance screening. They are reasonably good barometers of truth telling. They are not good enough to be admissible in court, but that doesn't mean they have no correlation to the truth.

Even if all this "AI" does is match the quality of a polygraph, it is probably extremely useful in screening people rapidly at the border.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by dagw on Thursday November 01, 2018 @04:13AM (#18352082)
I would think they have a dataset that they're validating them on if they're calling it "AI".

You obviously don't work for IBM :)

A skilled IBM Watson sales consultant as capable of selling simple linear regressions as Big Data AI!

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by bryanrasmussen on Thursday November 01, 2018 @08:05AM (#18353131)
You know with a big enough corpus of successful sales I think we should be able to train our Sales-Bot to sell simple linear regressions as Big Data AI!
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by stochastic_monk on Thursday November 01, 2018 @08:58AM (#18353434)
I wish that machine learning wasn’t being mislabeled as AI. It’s pattern recognition, not intelligence.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by dagw on Thursday November 01, 2018 @09:14AM (#18353554)
It’s pattern recognition, not intelligence.

While I don't disagree that "AI" as a term is being abused, the distinction you're making seems very much a philosophical one.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by gnulinux on Thursday November 01, 2018 @09:29AM (#18353673)
One could argue intelligence is pattern recognition. One important aspect of human intelligence is neocortex -- a part of brain -- that exists in all mammals and mammals only. It serves as a pattern recognizer in mammal brains that helps them recognize certain sound, day/night, visual patterns etc...
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @11:52AM (#18355173)
Of course. All i'm saying is that presumably they've at least cross-validated that linear regression.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by realusername on Thursday November 01, 2018 @03:54AM (#18352026)
All the lie detection methods I've seen are based on questionable science with high false positive rates, there's no known method to know for sure if someone is lying and I don't see how adding "AI" on top of it will change that.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by deft on Thursday November 01, 2018 @03:54AM (#18352027)
You mean exactly how existing lie detectors claim to work? They slapped AI on an old concept (that isn't useful and has been proven to be worthless a million times over).
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @11:51AM (#18355167)
Existing lie detectors use a bunch of information like pulse, and galvanic skin response. Presumably this device is not hooked up to people enough to do that, so I don't think it's using the exact same metrics. Also, polygraphs work decently well actually. Just not well enough to be used as evidence in court.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by TeMPOraL on Thursday November 01, 2018 @12:19PM (#18355530)
> I would think they have a dataset that they're validating them on if they're calling it "AI".

Where did they get that dataset from? Did they ask a bunch of people a bunch of questions and then hired private investigators to verify the answers (and then hire extra investigators to cross-verify answers given by the previous bunch)? Because beyond something like this, there's no known way to create such a dataset.

Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @12:23PM (#18355565)
I've considered this. You could create the dataset by looking at interviews with people caught smuggling, before they were caught. Or similar for any criminal activity.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by sincerely on Thursday November 01, 2018 @12:49PM (#18355902)
Honestly creating that dataset would be the easiest part of this. Just ask people questions that you already know the answer to.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by yarrel on Thursday November 01, 2018 @06:05AM (#18352441)
The imperfection is large enough to cause serious concern.
Re:An AI Lie Detector Is Going to Start Questioning Traveler... by darawk on Thursday November 01, 2018 @11:50AM (#18355147)
You know what the error rate on these devices is?