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You can verify a removed power supply with any voltmeter, but you have to short an ATX ground jumper somewhere or it will give you a false dead reading. Look around the internet to see which it is.

If you can't even boot into bios, swapping out boards may be worthwhile. If you have a spare PC, you can just put your hard-drive in that unit to verify it is ok. Check to verify you can't boot to bios 1st. About the only thing that is somewhat difficult is actually changing the CPU...

amzn has been the absolute annihilation of shorts. Hope you aren't basing it on fundamentals; playing with fire on this gamble either way. GL

Some of the best academic and professional minded publishers you'll find, typically charge in the 80-120 range. I guess they assume the clients can easily afford it. These days, fortunately, it's easy to shave off some of the retail cost. It's getting harder to find the books I like to read...

Thanks Euler, truth be told, I'm a bit envious of all the tools this generation has available at their disposal. The Red Queen is alive and well-- and for the poster that mentioned kurzweiil, you better hope your wetware plasticity can keep up with the exponential learning curve. Sucks...

The goal is most definitely not to learn a 'true' function. You will never know the 'true' function, regardless of how many neurons you have, unless you can some how time travel to the future and have a database of all past/future data; not only is that unnecessary, but it is counter...

Machine learning is really not that much different than the difficultly that arises from relying on the wetware between your ears; 1) finding the inputs that are useful is not trivial. 2) finding the proper way to process them and find a statistically meaningful and useful relationship...

A simple way to test this is to simply test the 3.3V lines that come out of the supply with no load (using a voltmeter). This will eliminate the board as a potential problem. I had a supply blow out and die on a power surge (surge protector didn't help worth %$).

+1 Good commentary. As the WTF commentary begins to mushroom and proliferate, it is usually a good sign that a dominant reversal will not happen for a while, at least that's my perspective.

Nice to hear a refreshing voice here. Where did you hear Gummy's site is going down? I added to some of the topic ideas in the past. You folks better jump on it before it's gone. Good things don't often come for free.

Welcome to the way the markets operate. If you are just starting out, learn to separate rational logic with what is actually happening. If the markets are soaring on horrible news, it is telling you something that you should not try to fight by sheer logical inference. I doubt the bulk of...

True, although as evidenced under this thread it is often referenced under the idea of trying to capture VIX movements. Just pointed out the relationship for those who are actually trying to emulate VIX for short term trading purposes.

The VXX does not seem to track VIX daily close very well; at all. Even hit rate is only 85% so far. Careful.

Nice to see someone share something aside from cryptic circumlocution for once. Did you write it? Although, there are a couple of problems. For one, the dc (mean) is missing from the filtered reconstructed data set. You can just add a constant of the average of the input time series to...

I feel the same way, Landis. But that being said, this isn't the only trading forum in the world, there are greener pastures on the horizon. Seek and ye shall find.:D <i>"Excellence is a better teacher than mediocrity. The lessons of the ordinary are everywhere. Truly profound and...

So I started some dialog with a blogger that was promoting moving averages over buy and hold. Now some interesting points came up in this debate, and I am curious to see how other system developers view this. Assume you only use a long MA crossover over the long run (assume it is the most...

edit. moved.

If you are using a smoothing spline as I mentioned earlier in the 1st example posted, it is a simple matter to adjust for smoothness as there is a coefficient that can be adjusted for that. Note that smoothing spline and cubic spline are two different methods, although both also have...

"The type of questions most interviewers ask—and those D.E. Shaw is known for—are those with no right answers." The key, from an interviewer's viewpoint, is to observe how you think and reason your way through a problem. If some of the astute points that were brought up here, were made...

For those interested in a very good and intuitive read on many of the questions posted; such as, what is the optimal coefficient for out of sample exponential smoothing constant prediction, why are splines better than moving averages, etc... PM me. Warning, it's more of an academic approach...