Attacks against machine learning – an overview

Re:Attacks against machine learning – an overview by itronitron on Sunday June 10, 2018 @11:50PM (#17281622)

In order to wash out the signal, all the service would need to do is 'like everything'. In addition to masking your interests it would also grind their algorithms to a halt if enough people did that. A lot of these algorithms gain performance due to the sparsity of the data, so if everything became connected it would negatively impact the performance of their algorithms.

Anyone know how to get, or compile, a list of everything likable on Facebook?

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Re:Attacks against machine learning – an overview by pferde on Monday June 11, 2018 @03:57AM (#17282576)

Until you get into problems (legal or personal, doesn't matter) for "liking" stuff related to child porn, terrorist propaganda or, I don't know, scientology, without even knowing about it, because it was done on your behalf by this "like automaton".

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Re:Attacks against machine learning – an overview by sacado2 on Monday June 11, 2018 @06:51AM (#17283227)

Exactly. In France people have been convicted because they "liked" illegal opinions. As if the fact that such a thing as an illegal opinion exists was not enough of a problem, it's been decided by justice that the semantic of a "like" was "I make this opinion mine".

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Re:Attacks against machine learning – an overview by pferde on Monday June 11, 2018 @07:51AM (#17283479)

Can you please share some links on this? All I could find was a similar case in Thailand: https://www.theguardian.com/world/2015/dec/10/thai-man-arres...

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Re:Attacks against machine learning – an overview by sacado2 on Monday June 11, 2018 @09:07AM (#17283849)

I found that, but this is in French, obviously: http://www.leparisien.fr/rozay-en-brie-77540/rozay-en-brie-c...

My own (approximate) translation of parts of the text:

"Sur Facebook, le trentenaire avait apposé un «J’aime» sur une image d’un combattant de Daesh brandissant la tête décapitée d’une femme. Il a été condamné à trois mois de prison avec sursis." --> "On Facebook, the man in his thirties had clicked "like" on a picture of an ISIS fighter holding the head of a beheaded woman. He was given a 3-month suspended prison sentence".

"«Quand on met J’aime, c’est que l’on considère que ce n’est pas choquant ou que l’on adhère», considère pour sa part Jean-Baptiste Bougerol, le substitut du procureur de la République." --> ""When you click "like" on something, you consider it's not shocking or you agree with it"", said the prosecutor".

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Re:Attacks against machine learning – an overview by itronitron on Monday June 11, 2018 @06:39PM (#17289248)

anything likable on Facebook shouldn't be illegal, or illegal to like

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Re:Attacks against machine learning – an overview by sacado2 on Monday June 11, 2018 @06:54AM (#17283235)

If you like everything, or if you say "my birthday is the 32nd of February", the algorithm can detect you're trying to defeat the system, and ignore you: you become a known unknown.

But if you start to like random things, or if you say "my birthdate is the 2nd of March" while it's not, you become an unknown unknown, and the algorithm must start to reason with your wrong data.

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Re:Attacks against machine learning – an overview by lwansbrough on Monday June 11, 2018 @12:32AM (#17281810)

Facebook uses an enumerable ID for everything public, so to get a list you just have to enumerate their public pages.

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