The Basyesian works well now; because most users aren't using them; spammers will adapt their behavior as these filters become more popular, and the percentage of spam caught goes down.
It only takes a small percentage to ensure profitability for them.
Also I fear that filtering will not solve the problem; the people gullible enough to go for their pitch will probably not see the point in using them anyway, so the spammers will continue.
Well, they historically did pretty much the same thing with land, the government acquires it militarily using public money, and then auctions it, or rents it off. What's the difference?
I've been running one for a while; I'm getting about 90% successful blocking, and I've practically never seen a mail item I seriously wanted be flagged in a few thousand messages perhaps.
But there are some limitations:
a) short messages don't get caught- no words that are going to be blocked, just a URL. The URL doesn't match because it's several words stuck together without spaces.
b) misspelt words don't get caught. If the spammer deliberately misspells the key words, then it goes through.
c) common words- if the spammer only uses common words, it is unlikely that the spam can get caught; the spammer can check all the words he uses for being common before he sends it.
d) pictures- if the spammer sends his advert in a GIF, the Naive Bayesian can do nothing.
Overall, I am pessimistic about whether filtering will work in the long run, but in the short run it works pretty good.
No, the Shuttle is not the answer.
The problems the Shuttle has are:
lack of credible abort modes
extremely long turnaround times
use of solid rocket boosters during ascent
use of bulky hydrogen during ascent to LEO
use of expensive launch pad
whole armies of people needed to maintain it
extremely high cost of launch
lack of full reuse
main engines are too complex, too near to the engineering edge
Some of these are fixable with enough money; the boosters might be replaced by liquid engines, or hybrid engines, but most of them are pretty much inherent in the design. The main engines are gradually improving, and need less maintenance now, but the vehicle still is never going to be able to turnaround quickly; it's never going to launch every other day, or once per week. And that's what it would take to make it cheap.
Speed of light is ~300,000km/s; that translates into a ping time of 300/300,000 * 2 = 2ms (there and back) plus protocol overhead, which should be negligable.
So there's no way that they should have a ping time as high as that; unless their link was down at 300 baud or something- they don't mention the link speed. If they were that low then the packets themselve could take half a second just to send 8-)
There's almost certainly no magic here. You just light it with LOX or some other oxidiser, under high pressure. No big secret. The reason it doesn't normally go as well as in a rocket is because the atmosphere is only 20% oxygen, and the pressure is lower. I think they use some black die in the wax to stop the heat radiation melting it too quickly, but that's about it AFAIK.
I think it's a corporate norm in Sony to assume that copyright infringement is automatically wrong and needs to be dealt with legally- I think it stems from their large music industry base. It's still idiotic in the Aibo case, and probably P2P too.
That's nothing my first computer didn't have any permanent storage at all. Switch it off and you lost everything.
(Ok, technically it was a pocket calculator;-), but it was a turing complete, programmable pocket calculator: ti-58)
Re:Hmmm. Anyone want to trade plans for a railgun?
on
More 3D Printer News
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· Score: 2
Nothing special about railguns; check out Powerlabs for pretty much plans for one. They're not that exciting unless you have a humongous powersupply. And rail erosion is a more or less insoluble problem, so far.
Conventional bullets go faster, nearly always, and are cheaper and easier.
No, the SSH private keys are never in an ethernet packet to begin with.
Actually they may end up in one, but it depends on the device driver and the SSH implementation, for, according to the CERT announcement:
"Depending upon the implementation of an affected device driver, the leaked information may originate from dynamic kernel memory, from static system memory allocated to the device driver, or from a hardware buffer located on the network interface card."
Ok, call me picky, but I think they should anodise these cases black:
a) it looks cooler
b) black is a better thermal emitter so the case will actually be cooler!
Also, I'm wondering whether a really nice case would use perspex instead of aluminum. I mean sure, aluminum is nice and light, but perspex is even lighter, and you can double wall it, and fill it with water from water cooling. The only problem with perspex is that it gives no electromagnetic shielding, but thin aluminum or copper mesh underneath would, done correctly, look cool, be transparent, and provide every bit as good protection. (Hint, ever wondered why they use mesh on the door of a microwave oven?)
Nothing exactly... Re:What is up with the UK
on
To the Moon and Beyond
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· Score: 4, Informative
Well, the UK government's position on human space flight has always been 'it's a waste of money' and this really stems from a time where the UK was practically a third world country after WWII. Actually, right now I still agree with their position on this; except I think that people should be able to waste their own money (space tourism) if they want to; and as much as they want to; and the price needs to come down.
But on the subject of the euro; the problem with adding the euro is much more subtle than it appears.
If the UK gets the euro, then that means that there has to be a single bank throughout europe that controls the number of euros in distribution.
It also means that central control of interest rates is essential. That means that the interest rates are controlled centrally for the good of europe (i.e. probably by the Bundesbank; which constitutionally has to act for the good of Germany, rather than the good of Britain, or even Europe; since it is by far the biggest bank).
Since the economies of Germany and UK tend to do move in rather different ways, tying them together is going to cause some issues; as well as benefits. But it is honestly unclear to most people who have studied it in detail whether the benefits or the issues are going to dominate.
And this is putting issues of sovereignty to one side... there are lots of people with very firm opinions on that, to say the least.
Personally, I think we need to go for the euro, but I'm fairly nervous about it.
This is a prime example of a half assed solution that causes more problems than it solves.
Not so fast. A lot of spammers send via an open relay. Open relays, unless they are deliberate relays caused by viruses or worms aren't likely to be sophisticated enough to disconnect. So it does help quite a bit.
Slashdot Mirror
It only takes a small percentage to ensure profitability for them.
Also I fear that filtering will not solve the problem; the people gullible enough to go for their pitch will probably not see the point in using them anyway, so the spammers will continue.
Yes, but there's a lot of words to start with, and then you multiply by the misspellings... Still soundex algorithms would help a lot I guess.
Well, they historically did pretty much the same thing with land, the government acquires it militarily using public money, and then auctions it, or rents it off. What's the difference?
Yeah. If the spammer is crazy enough to mispell it the same way each time then you will be fine. Hint: they won't.
a) short messages don't get caught- no words that are going to be blocked, just a URL. The URL doesn't match because it's several words stuck together without spaces.
b) misspelt words don't get caught. If the spammer deliberately misspells the key words, then it goes through.
c) common words- if the spammer only uses common words, it is unlikely that the spam can get caught; the spammer can check all the words he uses for being common before he sends it.
d) pictures- if the spammer sends his advert in a GIF, the Naive Bayesian can do nothing.
Overall, I am pessimistic about whether filtering will work in the long run, but in the short run it works pretty good.
Nice troll. What a bunch of weirdoes they must be to want to do capitalism in that most right wing of places America. Yup, uh huh. You're right.
- lack of credible abort modes
- extremely long turnaround times
- use of solid rocket boosters during ascent
- use of bulky hydrogen during ascent to LEO
- use of expensive launch pad
- whole armies of people needed to maintain it
- extremely high cost of launch
- lack of full reuse
- main engines are too complex, too near to the engineering edge
Some of these are fixable with enough money; the boosters might be replaced by liquid engines, or hybrid engines, but most of them are pretty much inherent in the design. The main engines are gradually improving, and need less maintenance now, but the vehicle still is never going to be able to turnaround quickly; it's never going to launch every other day, or once per week. And that's what it would take to make it cheap.How do big legs help you go up hill at more than 45 degrees? These birds can go up a slope at 100 degrees 8-)
And if you count wartime, do nuclear weapons count?
Speed of light is ~300,000km/s; that translates into a ping time of 300/300,000 * 2 = 2ms (there and back) plus protocol overhead, which should be negligable.
So there's no way that they should have a ping time as high as that; unless their link was down at 300 baud or something- they don't mention the link speed. If they were that low then the packets themselve could take half a second just to send 8-)
Hey, here's another wax, earwax; get 'em syringed. Cos, you obviously didn't listen well to the audio interviews on that site :-)
There's almost certainly no magic here. You just light it with LOX or some other oxidiser, under high pressure. No big secret. The reason it doesn't normally go as well as in a rocket is because the atmosphere is only 20% oxygen, and the pressure is lower. I think they use some black die in the wax to stop the heat radiation melting it too quickly, but that's about it AFAIK.
That's not good for you.
Taking a dump I mean; people have died.
Yes, but he's not talking to the litigation industry, he's talking to the businesses...
I think it's a corporate norm in Sony to assume that copyright infringement is automatically wrong and needs to be dealt with legally- I think it stems from their large music industry base. It's still idiotic in the Aibo case, and probably P2P too.
(Ok, technically it was a pocket calculator ;-), but it was a turing complete, programmable pocket calculator: ti-58)
Conventional bullets go faster, nearly always, and are cheaper and easier.
Actually they may end up in one, but it depends on the device driver and the SSH implementation, for, according to the CERT announcement:
"Depending upon the implementation of an affected device driver, the leaked information may originate from dynamic kernel memory, from static system memory allocated to the device driver, or from a hardware buffer located on the network interface card."
Visible light is, as you note, around 1000nm or so. Note the difference between nm (0.000,000,001m) and cm (0.01m)...
Try googling first next time.
a) it looks cooler
b) black is a better thermal emitter so the case will actually be cooler!
Also, I'm wondering whether a really nice case would use perspex instead of aluminum. I mean sure, aluminum is nice and light, but perspex is even lighter, and you can double wall it, and fill it with water from water cooling. The only problem with perspex is that it gives no electromagnetic shielding, but thin aluminum or copper mesh underneath would, done correctly, look cool, be transparent, and provide every bit as good protection. (Hint, ever wondered why they use mesh on the door of a microwave oven?)
Plus you could keep fish in it ;-)
But on the subject of the euro; the problem with adding the euro is much more subtle than it appears.
If the UK gets the euro, then that means that there has to be a single bank throughout europe that controls the number of euros in distribution.
It also means that central control of interest rates is essential. That means that the interest rates are controlled centrally for the good of europe (i.e. probably by the Bundesbank; which constitutionally has to act for the good of Germany, rather than the good of Britain, or even Europe; since it is by far the biggest bank).
Since the economies of Germany and UK tend to do move in rather different ways, tying them together is going to cause some issues; as well as benefits. But it is honestly unclear to most people who have studied it in detail whether the benefits or the issues are going to dominate.
And this is putting issues of sovereignty to one side... there are lots of people with very firm opinions on that, to say the least.
Personally, I think we need to go for the euro, but I'm fairly nervous about it.
You're lucky, my popfile server is down to 90% success rate right now; still, it has never labelled good mail as spam.
This is a prime example of a half assed solution that causes more problems than it solves.
Not so fast. A lot of spammers send via an open relay. Open relays, unless they are deliberate relays caused by viruses or worms aren't likely to be sophisticated enough to disconnect. So it does help quite a bit.