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  1. Re:We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 1

    Here's what you are not getting, it ISN'T a prediction method.

    If all you have is stupid predictors acting on the market, all you get is stupid results (no better than chance). Ensemble learning (from your earlier example) does better than this (it can do better than its inputs, even with brain damaged sub agents).

    Their advantage is in the way they exponentially reward better prediction agents over worse ones. They do so in such a way that, in the long term, the market reflects the consensus of the best ACTUAL predictors that use it.

    Finally, you keep forgetting, that if you develop a MORE optimal prediction method, a prediction market will soon come to reflect the results of THAT method... so it is a meta-prediction method... it is then, by definition, at least as good as the best ACTUAL existing prediction method! Hayek famously proved they result in optimal allocations, which is how economists say you cannot do better than them theoretically. So there really ARE reasons to believe that they are truly optimal.

    > It can be worth a lot of money to be faster

    Exactly, they reward *timely* information... that is exactly the property you *want* them to have. In any case, they do reward actors who remove inefficiencies. Actually, exploiting inefficiencies is the same as making them more efficient... These are all 'good' things.

    I agree as a mapping from real world inputs to output probabilities is inherently as crazy as any other problem (probably much harder than simple image recognition, NLP and the usual ML problems, though DNNs are often used with much success in horse racing)... but it is clearly smooth and simple in the OUTPUT space. Each outcome has a theoretical actual probability (given all *possible* available information) and moving closer or further from this is easily and obviously smooth... even though we may not be able to know what that actual probability should be. In contrast, we generally don't train NN's with probabilities, we train them with certainties (we don't label images as 95% cat 5% dog, we say it IS a cat - ignoring 'dark knowledge' methods), but we then treat the results probabilistically.

    So, because it ISN'T a prediction method, it doesn't suffer from the "No Free Lunch Theorem"... it isn't a learning method or a input-output prediction mapping at all! You'll (probably) never be able to use a prediction market to classify images as cats or dogs, only for true unknown probabilistic outcomes like for sports events, weather, elections, etc.

    If you're in the US, you've probably never had a chance to use a prediction market, because they are generally illegal there. I have no idea why.

  2. Re:We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 1

    Another way to pput it is that prediction markets don't suffer from the "No Free Lunch Theorem" because they are not prediction methods themselves, but a way of combining prediction methods.

    Ensemble learning is STILL a prediction method, and so still suffers from the NFL theorem.

  3. Re:We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 1

    Not really... because you can't know the odds you are getting when you place the bet.

    Imagine we are betting on the outcome of sum of two dice rolls, where we know the most likely outcome is seven, but this still only happens 1 in 6 times. So, if you are getting better odds than 1 in 6, you should bet on seven, but if you are getting less than 1 in 6, you should bet against it. On a prediction market, someone who does this (within constraints of the kelly criterion) will long term profit... but with pool betting, we can't tell the odds we will get until the pool is closed... meaning that the correct betting strategy isn't known until you can no longer use the information!

    Prediction markets reward those who provide more correct information (than the market itself) to these markets. Pools reward those who are more correct than the average bettor, but we don't know what the average bettor will do until it is too late to make use of this information, meaning that people can't meaningfully provide predictive information to betting pools.

    Prediction markets really are the optimal way to collate the wisdom of crowds, and, unlike the above posters suppose, it doesn't suffer from the "No Free Lunch Theorem" because it is not a learning algorithm or a prediction method in itself, but a meta-prediction method, ie an optimal way to combine other prediction methods and exponentially reward the most correct ones.

  4. Re:We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 1

    I was talking about real prediction markets, not as use in training NNs with virtual prediction markets. I can't think of any situation where this would even make sense... but maybe?

    And, while I agree with you that prediction markets have the faults you state, they still turn out to be the best method we have available of collating the wisdom of crowds. Empirical data from horse racing results show that horses do in fact win at the rate predicted by the markets to a very high degree of accuracy.

    Finally, if you produced a method that was more accurate than the market, which did not suffer from the feedback loop you suggest (or any other problem), then the market would significantly and exponentially reward this method until the market reflected the predictions of your method... meaning the market would then indeed reflect the best underlying prediction method, as I originally stated.

    If anything Swarm AI is a prediction market, but with equal waiting for every "expert, and no reward feedback mechanism to promote the accurate and remove the inaccurate players.

  5. Re:We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 1

    I'm pretty sure you don't get what a prediction market is. It is not machine learning, and it is not a learning method.

    It is not a prediction method in itself. It allows disparate prediction methods to compete with each other with real world resources, ie, money.

    It makes no assumptions about smoothness. The only assumption it makes is that various outcomes will manifest with various probabilities. Something that does have a global optimum.

    An ensemble is not a meta-prediction method, it's simply another prediction method. A prediction market is not in itself a prediction method, it's completely brainless and useless except for the way it incentivises and rewards correct predictions from other prediction methods.

    Again, no matter what prediction method you use, including ensembles, a prediction market will exponentially reward the most correct one over time. So it is always going to reflect the results of all the best prediction methods available. Ensembles do not have this property.

    (Note: Am familiar with ML, and earned a living from exploiting inefficiencies in horse racing prediction markets for nearly decade).

  6. Re:We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 1

    > Note that a prediction market is not particularly more likely to be accurate than any other machine learning technique. If there's been one thing that's been demonstrated time and time again over the years, it's that there are many techniques that can work, but that to get truly excellent results, appropriate data collection, selection, filtering etc. is critical. It's easy to get charmed by techniques that have a great story and convincing argument they'll work - but that doesn't mean they're the best.

    Firstly, a prediction market isn't a machine learning method (nor is Swarm AI)... but...

    No, a prediction market is always likely to be more accurate than any given prediction technique because it is not a prediction technique in itself, but rather a meta-prediction system that optimally combines existing prediction methods and exponentially rewards the best ones.

    For example, assume a new machine learning technique comes along that is consistently better able to predict the probabilities of which horses are likely to win than all the existing techniques when combined in existing prediction markets. That means it will produce probabilities that are more accurate than the market and can therefore take advantage of this difference to realise long term exponential profits from these markets. However, as it reuses those gains each time, it becomes a bigger player in those markets, which drives the markets towards its own predictions, quickly removing profit opportunities for itself and others. Pretty soon, the prediction markets start to reflect the predictions of the new machine learning technique over the older techniques.

    So, because it is a meta-prediction technique that optimally combines the results of all participating prediction techniques, it is always going to be better than any given underlying prediction system, or at worst case be as good as the best underlying prediction method.

  7. We already have an optimal swarm intelligence on Swarm AI Spectacularly Fails To Predict Kentucky Derby Winners A Second Time (techrepublic.com) · · Score: 2

    gathering system for horse races. It's called a prediction market.

    It gathers information from those willing to put their money on their predictions, and rewards those who are most accurate (in terms of probabilities) and punishes others.

    Prediction markets are 'wisdom of the crowds done right', except they are generally illegal in the US, so you are stuck marketing these inferior systems like Swarm AI.

  8. Re:Dilemma Solution on Evidence That Robots Are Winning the Race for American Jobs (nytimes.com) · · Score: 1

    This is not right way to decrease the population, there is a good chance that war will increase breeding rates and have the opposite effect of your stated desired outcome. Besides, we are already heading to a stable population.

    See this video: https://www.youtube.com/watch?...

    And this discussion on it: https://kr5ddit.com/post/1747/...

    Probably the only other factor to worry about would be global warming, and it seems that nuclear energy would be the solution to this.

  9. Re:The solution is also a problem on Trolling Will Get Worse Before it Gets Better, Study Says (mashable.com) · · Score: 1

    > Unfortunately, proper implementation requires identity verification...

    That might not necessarilly be true. I'm working on a site called kr5ddit, which doesn't require any verification, but has a moderation system that cannot be gamed by having multiple sock puppets.

    You must earn your right to moderate, so no amount of sock puppets can give you any advantage.

  10. Re:The real problem on Krebs: 'Men Who Sent SWAT Team, Heroin to My Home Sentenced' (krebsonsecurity.com) · · Score: 1

    The laws are unnecessary, and the effect of these laws are the direct cause of the very deaths you talk about. The deaths are not a necessary result of drug consumption, but of the laws.

    Laws cannot change people's preferences and every time society's laws attempt to ignore the more fundamental laws of supply and demand we end up with bad outcomes. Either people starving or the creation of powerful drug cartels and all the other problems.

    The drug market exceeds the IT market, and is second only to the war and oil markets. Pablo Escobar was once the wealthiest man on the planet. My personal consumption is no major concern in the overall scheme.

    All drugs should be fully legalised. Regulated for purity, for correct labeling, where, when and to whom they can be sold, and taxed according to their intrinsic negative externalities. Just like every other commodity in existence, because the further you drift from a free market the more the social utility loss, which is another way to say unnecessary suffering and death.

  11. Re:The real problem on Krebs: 'Men Who Sent SWAT Team, Heroin to My Home Sentenced' (krebsonsecurity.com) · · Score: 1

    variations in quantity* and quality

  12. Re:The real problem on Krebs: 'Men Who Sent SWAT Team, Heroin to My Home Sentenced' (krebsonsecurity.com) · · Score: 2

    > Not quite. The medical problems are still based in chemistry. physically destructive drugs like Heroin and Krokodil are still going to destroy bodies even when decriminalised.

    Heroin is actually one of the SAFEST drugs you can take in terms of physical destructiveness. If you can actually get pure heroin in constant supplies and known quantities.

    Krokodil wouldn't even exist except for prohibition.

    >. You're probably thinking largely of Marijuana and LSD (the least destructive of the illicit drugs) possibly up to MDMA, cocaine and amphetamines. Here I think your point remains valid. However it gets into a grey area when talking about things like Crystal Meth. I could agree with decriminalising the former drugs I mentioned, but ignoring things like Meth, Heroin and other drugs that are actually destructive is foolhardy.

    No, it is precisely the more dangerous drugs like heroin and crystal meth where the marginal harm of prohibition is at its greatest.

    No one I know of has ever died from variations in quality and purity of cannabis or LSD, prohibition is mostly killing my heroin and meth using friends.

  13. For those who don't get pokey: on Web Comic 'Pokey The Penguin' Celebrates Its 19th Anniversary (twitter.com) · · Score: 1
  14. Re:The real problem on Krebs: 'Men Who Sent SWAT Team, Heroin to My Home Sentenced' (krebsonsecurity.com) · · Score: 4, Insightful

    Every single one of the problems you cite about drugs is due to their prohibition, or at the very least exacerbated by it.

    Exactly the same things happened during alcohol prohibition, but for some reason you people are too stupid to see the correlation and instead continue to think that doing more and harder of the same will get you different results.

  15. Re:Medicate on Bill Gates's Net Worth Hits $90 Billion (bloomberg.com) · · Score: 1

    Actually, UBI has been proposed many times by many high profile economists, you should be able to find these yourself. Yes, there are economists and economic thinkers from a long time back that advocate wealth taxes, or similar, or partial implementations of it. You should be able to find these too. I'm not going to help you because you come across as rude and ignorant.

    No amount of income tax, no matter how progressive, or capital gains tax (also a tax on deltas), etc, can act as a wealth cap. Simple logic should prove this to you. A multi-billionaire dies, his son inherits 10 billion dollars, you apply 99% tax to anything over $1 income or capital gains made on everyone, and your guy is still a multi-billionaire for life. It just makes sure that the poorest, no matter how much skill or value they ever bring to society, can never make more than a small amount of savings. Is this your aim? If not, you haven't thought through the problem.

    Estate taxes are somewhat similar to wealth taxes though, except they apply only once, when a rich person dies. So, the rich person will be rich forever, no matter how little he brings to society. His children will be rich too, but some tax goes to the state, to make up for their 'unearned' income.

    A wealth tax is more like a continuous version of an estate tax, that happens throughout the person's life. However, an estate tax does not encourage behaviour of making wealth productive on the individual. Mostly it encourages the creation of trust funds and such to avoid the tax for the benefit of their offspring. A wealth tax means that a person must invest their wealth (on average) in a productive (and therefore beneficial, under the assumptions of a free market) manner, at all times. The idea is not to disallow, but to discourage, large amounts of wealth to only be a benefit to the holder of the wealth and not society in general. A wealth tax makes it a benefit to society in general.

    Let's say you have a $2B luxury mansion property. You live very well on it, and make a tiny bit of money so you cover all your spending, but only the minimum. You die, and your child inherits it, but has to pay tax, we give half of it to the state, leaving the with a $1B luxury mansion property, and that person can make a tiny bit of money off of it to cover their spending, but only the minimum. Pretty much that $1B worth of WEALTH, is locked up by one person to the exclusion of everyone else for their entire lifetime. For that one person it is great, but for everyone else, it provides nothing.

    In a 1% wealth tax scenario, that $2B mansion better be making at least $20M/year to cover it's taxes, which benefit society directly, or it is a losing proposition and should be sold to someone who can make productive use of it. Also, over the average lifetime of a human being, they will pay the equivalent of an estate tax for that wealth, but the difference being, wealth would have been (more likely) to be used productively, and more efficiently, over that time, rather than simply hoarded.

    Now, you see if you can find the economists who have proposed these ideas before. Okay?

  16. Re:Stay off the slippery slope on Bill Gates's Net Worth Hits $90 Billion (bloomberg.com) · · Score: 2

    I don't need an economist, because you prove you don't know what you are talking about.

    That's not a wealth cap, it's an income tax. The high rate makes it an "effective" INCOME cap, but that has nothing to do with wealth.

    Wealth is your total value (holdings minus debts), while income is a delta to wealth.

    Income caps aren't fantastic ideas either, (note it was a high but progressive tax, and not an actual cap), but you shouldn't confuse income with wealth.

  17. Re:Stay off the slippery slope on Bill Gates's Net Worth Hits $90 Billion (bloomberg.com) · · Score: 2

    (Ignoring your views on windows for a moment here). Let's say we capped Bill's net wealth at $1B, once he got that $1B, he could have dismantled MS and stopped development of Windows entirely. There's no incentive to continue with a wealth cap, so why not?

    No, wealth is the incentive capitalism uses to provide value to society. Every trade provides a benefit to both the consumer and the producer, or otherwise, they would not participate in that trade.

    However, there do exist economic rents, monopolies form, and wealth trickles up in reality. A wealth tax stops wealth from being hoarded in unproductive ways, and addresses these unfortunate facts of the real market. Productive wealth provides goods and services to the rest of the population.

    Now, I'm sure you're a socialist or something who has never actually studied economics. I recommend you take an online course in the fundamentals of microeconomics. Once you can mathematically prove the first and second fundamental welfare theorems, then I will look forward to any arguments you have with my statements. Until then, I think you are following feels over facts, and as good as your intentions may be, that road leads to dark places, starvation, poverty and death.

    A wealth tax, UBI and some adjustments to income and capital gains taxes can provide both the required incentives for those who chose to chase wealth, while making that pursuit a benefit to all, especially in a future where almost all jobs become redundant in world dominated by AI and robots.

  18. Re:Reminds me of a crazy, hot girlfriend on New Mexico Nuclear Accident Ranks Among the Costliest In US History (latimes.com) · · Score: 3, Informative

    > still far safer, cleaner, more efficient and better than coal, gas, wind, solar etc etc.

    This got voted -1, but statistically, nuclear actually does cause the lowest number of deaths per MWh energy produced.

    http://www.nextbigfuture.com/2...

    There really is nothing safer than nuclear, and the facts back this up. Still, when did /. moderation ever have anything to do with reality?

  19. Re:Stay off the slippery slope on Bill Gates's Net Worth Hits $90 Billion (bloomberg.com) · · Score: 2

    Instead of a wealth cap, which removes the incentive to provide value to society, perhaps a wealth tax should be levied on wealth beyond a certain level.

    A 1%/year tax on net wealth would encourage productive use of wealth, so that wealth then necessarily benefits society.

    There are good justifications for this, because wealth is protected by the state and the people, and so those whose wealth we are protecting, should pay for that protection, and about 1% flat wealth tax beyond a reasonable amount (maybe $2M, or whatever puts you in the top 1%) makes sense.

    Furthermore, a wealth tax, along with a small UBI, means that the a wealthy few can support a large population, providing for their desires in accordance with the free market, as the AGI revolution replaces almost all jobs with capital.

    I propose that a wealth tax and a UBI are the closest practical implementation of lump sum transfers specified in the second fundamental theorem of welfare economics.

  20. Re:The targets aren't fixed points. on Chicago's Experiment In Predictive Policing Isn't Working (theverge.com) · · Score: 1

    > it has philosophical incompatibilities between it and the concept of democracy because of the loss of free will due to addiction, which need to be resolved

    I'll resolve this for you now, the best I can, which is that philosophical free will simply does not exist. There is nothing in physics that gives rise to free will, we are deterministic (though chaotic and unpredictable) bioelectrochemical machines. Free will is merely an illusion. We have no more free choice than a planet does to orbit the sun, or a rock dropped from height to fall to the ground.

    In microeconomics, we study economic agents AS IF they were following an unknown utility function. Not that they have a utility function, but they behave as if they were always maximising a utility function. In this sense economic agents have a WILL, or a desire. The free market, maximises all agents ability to follow their WILL FREELY, in so much as they don't harm other agent's ability to follow their free will.

    In this sense, a drug addict maximally follows their free will when they are allowed to consume the drug they are addicted to. That maximises their free will, completely independent of whether or not philisophical free will exists, which I propose it does not.

    So, drug addiction then has no philosophical incompatibility with democracy or the free market and free will at all.

    For further philosophical examination of this problem you can read Jon Stuart Mill's On Liberty, or study an online course in fundamentals of microeconomics.

  21. You HAVEN'T studied economics, and yet that is proof that *I* know nothing?

    Stupid retard troll.

    Only modern microeconomics is mathematically proven.

    So, what is a "COMPARATIVE ECONOMIC THEORY"? I think it means shit you pulled from out your ass.

  22. I'll take that as an admission that you haven't studied economics then.

    You wouldn't be able to recognise a free market from slavery. Hint: If people can come to your door with guns and force you to work, you aren't operating in a free market, even if it is a capitalist market.

    You probably believe in the labor theory of value, ie, that something is worth the amount of work put into it. Like I said, you are simply ignorant.

  23. I can tell you've never studied economics, so there's not much point in arguing with you, excepting to say that the free market model is not an unregulated market as you most likely imagine.

  24. > What you say would be true if any form of addiction were a choice. But it's not. Even addictive behavior is governed by brain chemistry so it is, in fact, chemically induced.

    ALL behavior is governed by brain chemistry, NOTHING is a choice, in the philosophical sense, the brain is an bio-electrochemical computing device.

    Yet none of that matters in the free market analysis of modern day microeconomics. Utility is utility, whether that is earning money, playing video games, or taking any drug.

    'Addiction' does not alter the fundamental theorems of welfare economics in any way. A free market leads to an optimum where everyone is better off, and no one is worse off, and no one can be made better off without anyone being made worse off. Furthermore, any violation of the free market assumptions (such as criminalising drugs, which is a negative externality on drug users) means that people COULD be made better off without making anyone else worse off.

    At best, 'addiction' should be a medical or health issue, not a criminal, and not an economic issue. Addiction, from an economics point of view, is simply the difference between a person's stated preferences, and their revealed preferences.

    You should concern yourself only with your own drug taking, and not force your beliefs on others. Let people make choices that provide them with maximal utility, as long as they aren't impacting on you, it's none of your business.

  25. All this talk of scientific basis for law on Is A Rational Nation Ruled By Science A Terrible Idea? (newscientist.com) · · Score: 1

    and yet not one mention of economics, which is the scientific study of human choices.

    The FREE market (not just any market, but only FREE markets) guarantees that everyone is better off than they started, but nobody is worse off. Not only that, but that any market that isn't free means people could be made better off without making anyone worse off.

    And real markets can be made to approach (in the mathematical sense) free markets with the right taxes and subsidies.

    Free markets lead to pareto optimal outcomes, but any pareto optimal outcome can be obtained with the right lump sum transfers.

    So, the scientific basis for law should (imho) be one with laws that result in free market outcomes, and redistribution through wealth taxes and basic income.

    But, for some reason, the IT crowd that visits slashdot is generally anti-economics as a science altogether.

    So, how do you possibly hope to have a rational scientific basis for society and law when the one science that studies utility and human choices is rejected by the majority of the so called 'scientific' crowd?