Search found 288 matches

by negatron
Mon May 07, 2012 6:27 am UTC
Forum: Serious Business
Topic: Are we on the brink of passing the Turing test?
Replies: 71
Views: 15390

Re: Are we on the brink of passing the Turing test?

Plasticity is never entirely lost and it's been observed recently that plasticity can be selectively restored via chemical intervention; Of course plasticity is not strictly a good thing, which is why it is lost, inducing plasticity in the brain would result in regression of function. In the study o...
by negatron
Sun May 06, 2012 6:30 am UTC
Forum: Serious Business
Topic: Are we on the brink of passing the Turing test?
Replies: 71
Views: 15390

Re: Are we on the brink of passing the Turing test?

In terms of being able to program the initial state of a brain into a neural network that represents a functional brain, I am uncertain as to how you might do that. It's an interesting problem. The human brain project uses a mix of approaches such as evolutionary and pattern inference. The neocorte...
by negatron
Sat May 05, 2012 6:08 pm UTC
Forum: Serious Business
Topic: Are we on the brink of passing the Turing test?
Replies: 71
Views: 15390

Re: Are we on the brink of passing the Turing test?

Can 10 Petaflops do all that on an energy budget of less than 40 watts. Nope. There are inherent power inefficiencies in Von Neumann architectures for applications with high data locality (biological neural networks). Special neuromorphic architectures could achieve much higher power and cost effic...
by negatron
Sat May 05, 2012 12:23 pm UTC
Forum: Serious Business
Topic: Are we on the brink of passing the Turing test?
Replies: 71
Views: 15390

Re: Are we on the brink of passing the Turing test?

morriswalters wrote:At 100 trillion synaptic connections I wish them good luck.

With <100 integration steps per second per synapse, which is more than sufficient for low error with something like exponential euler, the computational requirements are below 10 Petaflops. Not that much at all.
by negatron
Sat May 05, 2012 12:11 pm UTC
Forum: General
Topic: strange triggers for depressive states
Replies: 17
Views: 9190

Re: strange triggers for depressive states

The smell of the air in summer.

Damn, that's intense. Me too. We are so broken :(
by negatron
Sun Aug 14, 2011 5:03 am UTC
Forum: Computer Science
Topic: Emulators of future consoles that use Raytracing
Replies: 8
Views: 3383

Re: Emulators of future consoles that use Raytracing

Sparse voxel octrees use raycasting, which is kinda like raytracing Not at all. In order of complexity ray casting < ray tracing < path tracing. Most people tend to group them all into a catch all term but the differences between them are orders of magnitude. Ray casting is fast and good for comput...
by negatron
Sun Jun 12, 2011 4:11 pm UTC
Forum: News & Articles
Topic: Nature wins again: Brain Link edition
Replies: 27
Views: 3464

Re: Nature wins again: Brain Link edition

Angua wrote:and I'm glad the family isn't letting them be used for experimentation.

It's not like they intend to stab pieces of their brain and see what happens. Why would you be glad their parents deny the opportunity for scientific progress?
by negatron
Thu Dec 30, 2010 6:31 am UTC
Forum: Science
Topic: am I just a few cells or a whole brain?
Replies: 63
Views: 5913

Re: am I just a few cells or a whole brain?

I just can't imagine a collection of gears and levers having the same self awareness and inner life that a human brain has. I can't imagine a large collection of protons, neutrons and electrons of any configuration achieving the same, yet here we are. Some procedures are self aware, only incidental...
by negatron
Wed Dec 15, 2010 2:44 pm UTC
Forum: General
Topic: What would be left after human extinction... ?
Replies: 26
Views: 4950

Re: What would be left after human extinction... ?

Computers. Nothing but computers. AIs would not require organic fuels (farming), all of our various housing and primitive entertainment facilities, our archaic transportation system. In 50k years the world will be covered with computing matter and solar collectors. Perhaps a small quantity of humans...
by negatron
Wed Nov 03, 2010 7:27 pm UTC
Forum: Hardware
Topic: Help with a gaming desktop
Replies: 27
Views: 3161

Re: Help with a gaming desktop

What processor do you have at the moment? I noticed people upgrade this all too frequently and unnecessarily.
by negatron
Wed Sep 22, 2010 6:27 pm UTC
Forum: Computer Science
Topic: City Simulation Feasibility
Replies: 21
Views: 4922

Re: City Simulation Feasibility

1E6*4E5 = 4E11. A Ghz computer is running at ~E9 speed, so the above simulation would take about 400 seconds per 0.1 seconds of city life, or run at 4000:1 slowdown over reality. You're vastly underestimating the processing power of modern parallel architectures. A CPU is highly unfit for such simu...
by negatron
Wed Aug 18, 2010 5:34 pm UTC
Forum: Hardware
Topic: Modern computing vs Biology
Replies: 9
Views: 1825

Re: Modern computing vs Biology

CPU: Preconfigured to do a particular task. Was yours preconfigured to browse xkcd? CPUs are "preconfigured" for universal computation. Even DSPs which are designed for a particular purpose are logically universal. Computers do not need to be, and probably should never be, a dynamic netwo...
by negatron
Wed Aug 04, 2010 12:35 pm UTC
Forum: Science
Topic: Female disinterest in STEM
Replies: 86
Views: 9984

Re: Female disinterest in STEM

Math is hard, humanities are easy. Females have higher opportunity to take the easy way in life given sexual appeal where men have evolved to become the providers and protectors. Lesser expectations are met with lesser effort. This is the societal element. Females also have an inherently lower cogni...
by negatron
Wed Jul 28, 2010 10:49 pm UTC
Forum: News & Articles
Topic: Gaming Technology Makes CT Scans Safer
Replies: 7
Views: 1154

Re: Gaming Technology Makes CT Scans Safer

the GPU they're talking about in the article isn't exactly something you'd find in an average gaming desktop. Probably. The average gaming desktop will be significantly faster with current-gen hardware. Teslas and consumer cards are essentially equivalent apart from the consumer card having a bit l...
by negatron
Wed Jul 21, 2010 4:46 pm UTC
Forum: General
Topic: My awesome experience this weekend.
Replies: 7
Views: 1033

Re: My awesome experience this weekend.

This weekend I've done a lot of awesome C++ coding and stayed up late watching Stanford lectures. Not to steal your thunder, but your weekend was only mediocre by my standards.
by negatron
Wed Jul 21, 2010 4:36 pm UTC
Forum: General
Topic: Someone makes an atom for atom exact copy of you
Replies: 60
Views: 6858

Re: Someone makes an atom for atom exact copy of you

When you wake up how do you know if you are the copy or not. I don't. Maybe if he forgot to take the cloning machine with him that would clue me in. This is a really easy question actually. I kill the other me. Since the real me is alive, and the other me is dead, that means that I'm the real me as...
by negatron
Wed Jul 21, 2010 4:12 pm UTC
Forum: Computer Science
Topic: I have an interesting question...
Replies: 13
Views: 2502

Re: I have an interesting question...

WarDaft wrote:Random data produced regular intelligence, it just took a time scale that is not currently feasible to simulate.

Intelligence was developed on rigorous and consistent physical principles and ruthless selectivity, not randomness. Genetic stochastics are merely enablers of selection.
by negatron
Wed Jul 14, 2010 12:13 pm UTC
Forum: Science
Topic: The brain: How do you think it works?
Replies: 46
Views: 5560

Re: The brain: How do you think it works?

As for projects headed by Markram and by Hawkins, so far I've heard nothing but ridicule. From who? Biologists and neuroscientists or computer scientists? If it's the former two then it's the least bit surprising. These people predominantly believe that computer models and their abstracts are disgr...
by negatron
Wed Jun 23, 2010 4:38 pm UTC
Forum: Religious Wars
Topic: headphones vs. speakers
Replies: 38
Views: 12541

Re: headphones vs. speakers

Headphones are superior in terms of value (sound quality for the dollar), avoid the unresolvable problem of room acoustics and offer better positional cues in a properly developed game. The issue with headphones is spatial processing to externalize the sound. This is a resolvable problem but it requ...
by negatron
Wed May 26, 2010 8:08 pm UTC
Forum: Hardware
Topic: What should I upgrade?
Replies: 13
Views: 1881

Re: What should I upgrade?

This is my first post, so here goes. Also if anyone knows why I can't push my CPU FSB above 350mhz without my system becoming unstable, it would be appreciated. It's most likely vcore. If the bios has voltage adjust you will need to increase it if you're overclocking that high. If it doesn't then y...
by negatron
Wed Mar 31, 2010 6:31 pm UTC
Forum: Hardware
Topic: Nvidia roadmap leaked - DX11 parts delayed
Replies: 64
Views: 9070

Re: Nvidia roadmap leaked - DX11 parts delayed

That is a very good point, but I'd be happier overall if my frame rate was still acceptable, but my case wasn't in danger of being melted. Even the dual GPU monster that is the 5970 doesn't get as hot as the GTX 480. I think you're being overly concerned with temperature. At first I thought heat ou...
by negatron
Wed Mar 17, 2010 6:06 pm UTC
Forum: Coding
Topic: Is C++ Getting Phased Out?
Replies: 67
Views: 8133

Re: Is C++ Getting Phased Out?

Berengal wrote:Despite being old and (imho) clumsy there are nieches where there's no better alternative.

I didn't realize all large high performance applications were niche.
by negatron
Wed Mar 03, 2010 5:48 pm UTC
Forum: Computer Science
Topic: Endianness
Replies: 34
Views: 3992

Re: Endianness

A long time ago computers couldn't even agree on bit-order, so at least we have that going for us today. You won't find a computer which reads bits the 'wrong' way, so an ASCII character on one machine is the same on another. As for byte order, I can't think of any meaningful difference to use one o...
by negatron
Wed Feb 24, 2010 2:52 pm UTC
Forum: General
Topic: Finding my calling in life
Replies: 7
Views: 1245

Re: Finding my calling in life

In an undecided case, computer programmer is the default option.
by negatron
Wed Feb 24, 2010 2:03 pm UTC
Forum: Hardware
Topic: Process switching cores
Replies: 9
Views: 1945

Re: Process switching cores

It's more efficient for the scheduler. This way it doesn't have to check if a core is maxed out on each context switch before it assigns a quantum (work unit). If it rotates cores it guarantees optimal loading regardless of the number of threads. There isn't always an obvious reason for why the sche...
by negatron
Wed Feb 17, 2010 2:31 pm UTC
Forum: Science
Topic: Brain= ???? Bytes
Replies: 74
Views: 8084

Re: Brain= ???? Bytes

http://www.fhi.ox.ac.uk/Reports/2008-3.pdf This should be reference material for anyone who wants reasoned estimates with explanation. It's a 130 page report on brain emulation. The most plausible estimates seem to be 5 x 10^13(50 Terabytes) to 10^16 (10 Petabytes). It also goes into processing req...
by negatron
Wed Feb 03, 2010 6:47 am UTC
Forum: Computer Science
Topic: Math in computer sciences
Replies: 18
Views: 3403

Re: Math in computer sciences

It doesn't seem you're bad at math. No one bad at math can be good at algebra, it makes no sense. I think the problem is you're simply too impatient for theoretical mathematics and analysis, which is just fine in your case as virtually noone in applied software development actually needs such exposu...
by negatron
Wed Jan 20, 2010 9:55 pm UTC
Forum: General
Topic: deleted
Replies: 79
Views: 8081

Re: So what do most of you guys do when not on the internet?

What is this not on the internet you speak of?
by negatron
Wed Jan 13, 2010 10:41 pm UTC
Forum: Hardware
Topic: Nanocomputing vs current hardware
Replies: 3
Views: 1046

Re: Nanocomputing vs current hardware

Seems like a silly project for a university to assign. Community college, maybe. Anyways, you're looking at the problem the wrong way. Performance would roughly be transistors times clock, rather than clock alone, but if you want to do the idea justice you have to divide the problem by type of perfo...
by negatron
Fri Jan 08, 2010 9:12 am UTC
Forum: General
Topic: Thoughts on the Singularity?
Replies: 28
Views: 3984

Re: Thoughts on the Singularity?

it's not doubling every two years Indeed it's not, it's doubling every year by all relevant measure. Combined with algorithm improvements, scientific applications in particular have seen ~Billion fold improvement in throughput over the past 20 years. There was a really interesting journal publicati...
by negatron
Fri Jan 08, 2010 6:40 am UTC
Forum: General
Topic: Thoughts on the Singularity?
Replies: 28
Views: 3984

Re: Thoughts on the Singularity?

But that's the thing: performance isn't doubling Exponential growth has a constant doubling period, so yes this must be the case. Performance doubles approximately at some interval. Perhaps growth in circuit capacities is a polynomial function if that is your claim, but all of computing history doe...
by negatron
Fri Jan 08, 2010 12:43 am UTC
Forum: General
Topic: Thoughts on the Singularity?
Replies: 28
Views: 3984

Re: Thoughts on the Singularity?

As far as he's concerned, the days of computing performance conveniently doubling every couple of years are already gone, and now we're stuck squeezing what performance we can out of parallelism (not that he minded, since parallelism is kind of his thing) I'm not seeing a problem. Performance is 'd...
by negatron
Fri Dec 18, 2009 4:22 am UTC
Forum: Computer Science
Topic: Remote Game Idea
Replies: 22
Views: 3420

Re: Remote Game Idea

As long as you don't parallelise it by alternating frames between threads. A single thread on a CPU can use multiple registers simultaneously with SSE, so computation is already parallel regardless of the number of threads or the number of frames being computed. GPUs get away from the whole concept...
by negatron
Thu Dec 17, 2009 8:22 pm UTC
Forum: Computer Science
Topic: Remote Game Idea
Replies: 22
Views: 3420

Re: Remote Game Idea

It is pretty much impossible to send a raw video stream across the network Nothing close to it, but why would you want to send a raw video stream? and encoding is going to take huge amounts of processing power just to compress the image. That's perhaps the least of the problem. Hardware encoders ca...
by negatron
Thu Dec 17, 2009 7:59 am UTC
Forum: Computer Science
Topic: Remote Game Idea
Replies: 22
Views: 3420

Re: Remote Game Idea

But you *CAN* compress the frames. Like I say, use MJPEG. That way, each frame is compressed as an individual image, in hardware, and it's completely parallisable. Wavelet transforms are exactly the kind of thing that can be made really REALLY fast in hardware. You can do much better than that. The...
by negatron
Thu Dec 17, 2009 5:49 am UTC
Forum: Mathematics
Topic: How To Learn (Advanced) Math
Replies: 12
Views: 3821

Re: How To Learn (Advanced) Math

You might want to figure out what it is you want to accomplish before you decide which courses you should be taking. If, for example, you're looking at a career in pure mathematics, analysis and topology are fitting options. If however you're looking at a career in applied mathematics, such as engin...
by negatron
Thu Dec 17, 2009 2:34 am UTC
Forum: Computer Science
Topic: Remote Game Idea
Replies: 22
Views: 3420

Re: Remote Game Idea

1. Get rid of triple buffering and use a single frame buffer instead. Save ~30ms at 60fps. 2. Increase mouse refresh rate to 200+ Hz, save another ~15ms on input. 3. Get rid of LCDs for better display technologies, save another ~5ms. You've just gained yourself an extra 50ms by making local optimiza...
by negatron
Wed Nov 25, 2009 7:50 pm UTC
Forum: Hardware
Topic: I wanna learn more about reverse engineering
Replies: 4
Views: 1724

Re: I wanna learn more about reverse engineering

"Exploiting Software, How to break code"
"Hacking - The art of exploitation"
"Secrets of reverse engineering"

This is all predominantly software. The hardware affair is far more device-specific and would require further reading.
by negatron
Wed Nov 11, 2009 5:19 pm UTC
Forum: General
Topic: Silicon life forms and computers
Replies: 8
Views: 1515

Re: Silicon life forms and computers

You have to make the distinction between computers and the software which they run. Dijkstra once said "Computer Science is no more about computers than astronomy is about telescopes." This means that although computers do not obviously possess such things, software easily can. So yes, I c...
by negatron
Wed Nov 11, 2009 5:01 pm UTC
Forum: Serious Business
Topic: Is it worth still staying physically fit?
Replies: 56
Views: 9001

Re: Is it worth still staying physically fit?

The thing is that many of the factors of premature death and lifestyle illnesses are caused by this lack of fitness No, they're not. It's a myth that fitness is preventative of heart disease. For every study that suggest this is true, you can find one that says the opposite. More recent research ap...

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