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A Kaggle Grandmaster cheated in $25k AI contest with hidden code

theregister.co.uk

41–50 of 197 posts

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#41

I remember reading about this on Twitter because of a reply from h2o.ai account. https://twitter.com/ppleskov/status/1215983188876709888?s=19 The person was originally employed at h2o.ai and as a consequence of this was fired. Not sure if that was completely appropriate. Wasn't this a personal participation? Or are there "company teams" on Kaggle ?

At will employment.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#42

Earlier quoted context omitted.

...he said, and then refreshed HN.

Propose HN: 'Countless' experiment – hiding all karmic integers : https://news.ycombinator.com/item?id=19745267 Perhaps someday we'll get a week without them.

I hope not. I actually miss seeing the karma count on individual comments, it made skimming a lot easier.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#43

Earlier quoted context omitted.

Propose HN: 'Countless' experiment – hiding all karmic integers : https://news.ycombinator.com/item?id=19745267 Perhaps someday we'll get a week without them.

No chance. HN’s goal is to have every effective programmer in the world checking it at least once a week. Anything that gets in the way of that is de facto bad. (I’d love to be surprised, though.) You can get the same effect with a Tampermonkey script I wrote: https://news.ycombinator.com/item?id=14456200 It even scrambles the karma count in your profile, so there’s no opportunity for karma to affect you.

Everything in moderation, right? Including games we play for imaginary Karma. I must say, though, I generally like the way HN does it. It isn't nearly as in your face and I don't find that motivates my behavior very much.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#44
post #14
post #5

Earlier quoted context omitted.

It’s so fascinating to see how easily a human brain can be hijacked by status. I wonder if there’s a way to harness that power for improving individual performance...

Napoleon Bonaparte: “Give me enough medals and I'll win you any war”

[deleted]

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#45

> The goal was to create an algorithm that could predict how quickly a pet would be adopted based on its profile details, from its photo to its breed, sex, size, age, and whether it had been vaccinated or not. > These predictions would be used to optimize and tweak future critters' profiles so that they are adopted as soon as possible. Sorry but, how is this useful? You can't just change the age of an animal to make…

You can use this to select which pets to put on a platform. For instance, no-kill shelters have to decide which animals they intake since they have finite room. They can save more animals if they pick animals that are likely to be adopted quickly. Obviously, kill shelters have a similar calculus when deciding which animals to cull (and indeed, animals that don't fit in the no-kill shelter go to the kill shelter).

I'm not sure how this website manages "inventory", but they might have similar problems.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#46
post #31

Am I missing something? It seems like "adoption speed" really isn't something you want to over optimize. The whole point is to match abandoned animals with suitable homes. Adoption speed seems secondary to post adoption measures of adopter satisfaction and adoptee welfare.

They probably don't have a way to measure that reliably, and adoption speed might make more sense to their bottom line.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#47
post #31

Am I missing something? It seems like "adoption speed" really isn't something you want to over optimize. The whole point is to match abandoned animals with suitable homes. Adoption speed seems secondary to post adoption measures of adopter satisfaction and adoptee welfare.

It looks like the shelter has limited capacity, and too many dogs to be taken care of, therefore the faster dogs are adopted, the less need to be euthanized.

Also what you are writing are extremely sparse and weak signals compared to adoption speed.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#48

Earlier quoted context omitted.

No chance. HN’s goal is to have every effective programmer in the world checking it at least once a week. Anything that gets in the way of that is de facto bad. (I’d love to be surprised, though.) You can get the same effect with a Tampermonkey script I wrote: https://news.ycombinator.com/item?id=14456200 It even scrambles the karma count in your profile, so there’s no opportunity for karma to affect you.

Everything in moderation, right? Including games we play for imaginary Karma. I must say, though, I generally like the way HN does it. It isn't nearly as in your face and I don't find that motivates my behavior very much.

If I get too many positive karma posts in a row I start worrying I'm censoring myself too much. Positive karma usually means I'm just saying the most mainstream thing and that's boring.

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#49
post #2

Is there a public list of all known Kaggle cheats?

Can you write a ML program to predict if someone is cheating based on their submission?

If only some organization has a large dataset of ML algorithms and identified cheaters...

Re: A Kaggle Grandmaster cheated in $25k AI contest with hidden code

#50

> The goal was to create an algorithm that could predict how quickly a pet would be adopted based on its profile details, from its photo to its breed, sex, size, age, and whether it had been vaccinated or not. > These predictions would be used to optimize and tweak future critters' profiles so that they are adopted as soon as possible. Sorry but, how is this useful? You can't just change the age of an animal to make…

Unless it's a totally no-kill shelter, the results would presumably help determine which animals to euthanize.
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