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User: cnettel

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  1. Re:There's a problem though on "Dilbert" Creator Gets Voice Back · · Score: 1

    To be specific, did you use recurrent neural networks, and did you model time within the system?

  2. Re:There's a problem though on "Dilbert" Creator Gets Voice Back · · Score: 1

    The Wikipedia article still mentions levels. Did you actually do intralevel connections, or even outputs going back to the inputs on a previous level? That's what you get in a biological system, but it's kind of pointless unless you also model several timesteps with some kind of propagation delay. When you do that, things can get really ugly... or beautiful.

  3. Re:There's a problem though on "Dilbert" Creator Gets Voice Back · · Score: 4, Informative
    Ok, but if we put it like this: a general multi-layer perceptron, which is often what "neural network" means in practice in an AI context, is quite dissimilar to a real neural network. You can't even get a feedback! (Which is kind of logical, since a MLP generally doesn't model time per se.) Back-propagation training is also quite different from the self-promoting mechanisms that are now believed to be significant for selection of neural connections.

    There are some similarities, and it's certainly possible to model biological neurons and systems in a machine. Those models will bear some similarities to neural networks used in classifying tasks, but there are also similarities to a whole range of (other) graph problems. It's kind of like the relation between ray-tracing and triangle/Z-buffer based rendering. The latter is a way to approximate the former, sort of. They have some similarities, and programmable hardware that's good for doing the latter might be tweaked to do the former as well, but you don't get a raytracer just by cranking up the polygon count, as the whole strength of the normal rendering paradigm is based on greatly simplifying assumptions that are centered on Getting Stuff Done.

  4. Re:ie7 and runas on Quiz Microsoft's IE Team Leader · · Score: 1

    The thinking was that this was perceived (and, to some very limited degree is) as a security hole, that the same process COULD at all be used for local file system browsing and web browsing, although the components loaded were quite a bit different. It's got nothing to do with runas.

  5. Re:OK, I have to ask on Finger Pointing Over iPod Windows Virus · · Score: 1

    Ignore the above. They obviously actually test a sample of the devices post-production. I'm surprised that they would actually do that against live machines with full OS setups (partly because of the obvious risks that some consistent error in that system, like a virus, affects the tested devices negatively), but I guess it might be credible that they still actually did it in that way.

  6. Re:OK, I have to ask on Finger Pointing Over iPod Windows Virus · · Score: 1

    Why does a machine used for a compatibility test affect the master used for new iPods? Well, obviously it either handles the master image, or the very iPod compatibility tested was then used for cloning to thousands of others.

  7. Re:Noise cacellation? on ChatterBlocker — Block Distracting Speech at Work · · Score: 3, Funny

    Hey, that's simple enough. If the boss is screaming from the other end of the corridor, you just put the microphone there. If the corridor is long enough, that gives you a plenty of time for the OS to get the sound at the signal propagation speed, while it reaches your ears from air. Then, you'll just need to tune the system to model the time-frequency response distortions through mic, corridor sound reflections and the pecularities of your amplifiers and speakers.

  8. Re:What's so special about Vista? on Samsung's Hybrid Hard Drive Exposed · · Score: 1

    And in any case, we can start loading some data while the HD itself is spinning up, and also do stripe reads from both media when the disks are up and spinning.

  9. Re:Ship time on Samsung's Hybrid Hard Drive Exposed · · Score: 1

    USB hard drive = USB bandwidth limitations and HD seek time. Wow, truly the best of both worlds for an intended fast cache. It makes much more sense to just load the first sectors from flash, while the HD is seeking to the appropriate position.

  10. Re:Overpopulation: Overblown? on U.S. Population Hits 300 Million · · Score: 1

    Population: 9 billion. All of them Borg.

  11. Re:If this is true... on Longhorn Server's "Improved" Security · · Score: 1

    A local setup of Vista, with default settings, will deny remote access for accounts with an empty password. (The same is basically true in XP SP2, at least.) The efforts in Vista hasn't been centered on physical security of the machine, "click to login" won't give you malware. I would rather assume that this fact in the current release of Longhorn Server would rather be the very result of the code sharing with Vista, where they probably haven't focused on getting the setup UI right for the server version with each change in the client. The Server version will be released several months after Vista, with another Beta 3 still not released, followed by some RCs, so they have plenty of time to fix this. (The setup and configuring wizards have been among the things that can change a lot quite late on in the game, this was true of XP, and it has also been true of Vista).

  12. Re:The Cost of Fighting Global Warming on Mass Extinctions from Global Warming? · · Score: 1
    Go read up on the length of the growing season(s) in tropical regions, versus precipitation. It never gets cold enough to stop photosynthesis in a serious way. On the other hand, high temperatures will, in fact, limit the growing ability of crops, forcing them to close their stoma to stop water loss, and the whole fuss making C4 plants more efficient. Maize is C4, but many other base crops are not, and higher day temperatures during significant parts of the year would certainly still be a problem for those organisms. Irrigation is the problem here, and that's not helped by a higher temperature.

    Increased CO2 levels might on the other hand benefit a lot of plants, especially in the high-temperature scenarios. Those effects won't get too significant until we reach a level similar to what's mentioned in the blurb, several times higher than the "normal" level for the human civilisation, and a level where even the most crappy "CO2 is an IR-mirror inwards in the sky" high-school physics model will give us some pretty adverse answers, unless there is a giant negative feedback somewhere fixing it for us.

  13. Re:Here is an idea on The Third-Party Patching Conundrum · · Score: 1

    Congratulations to inventing firewalls and anti-virus software.

  14. Re:Just in time... on The GIF Format is Finally Patent-Free · · Score: 1

    It surely is pretty nice if all the data you really wanted in the image has been normalized into a fraction of the total dynamic range. PNG being a presentation format, it might seem unimportant, but to replace the likes of TIFF, well, that's different.

  15. Re:Let's Do the Math on Genetic Mapping of Mouse Brain Complete · · Score: 1

    And there are both nucleotide and codon biases between species...

  16. Re:Waste of money on Paypal Co-Founder Backs Anti-Aging Research Prize · · Score: 2, Insightful
    With good care, an Alzheimer patient will live for a very long time. The cause of death is frequently not even related to the disease, it could be anything that people generally die of, or even something quite curable (an infection, a moderately benign tumor, the list goes on), but where the unability to communicate with the patient, and the patient's own unability to realize what's going on, makes it go untreated. In fact, I would argue that Alzheimer is a prime example of the situation where treatment will do more to prolong useful life (and allow people to work longer, or at least not need care from another person for every need, every day, for the rest of their life), than to prolong life in general.

  17. Re:Why do we want to stop aging? on Paypal Co-Founder Backs Anti-Aging Research Prize · · Score: 1
    Please enlighten me on why you think that engineering cybernetic implants that won't need excessive maintenance or energy, compared to their biological counterparts, is somehow easier than biological improvement. As an example, we have every reason to believe that "grown" implant hearts would have a much longer lifespan/MTBF/whatever than any electromechanical counterpart we are even close to achieving right now.

    The point about space colonization might be more valid, but the pure facts of exponential population growth means that even with shitload-cheap space travel, it's not really a solution for anything but a few generations, if even that. (Of course, I don't want to ignore colonization as a future prospect, but the exponential growth has to go or slow down, no matter what.)

  18. Re:pointless? on Engine On a Chip May Beat the Battery · · Score: 1

    Strange, I think my battery gets hot as well. OTOH, I think your 50 % number is quite inflated for general combustion engines.

  19. Re:JPEG2000 is not inherently Lossy on Wireless HDMI Prototype Announced · · Score: 1

    The need to use compression indicates that they at least have some fallback to lossy or lower framerate (it has to do SOMETHING if fed white noise). It doesn't have to be that bad, it's not like the original signal, in the video case, will ever be an uncompressed HD signal in itself. I wonder if they have considered any efforts to match the expected inherent compression artefacts; as we all know, lossy + lossy can sometimes be a very bad thing.

  20. Re:Without neural network processing? on Wi-Fi Fingerprints -- the End of MAC Spoofing? · · Score: 1
    RTFAing is cheating, so take this with a grain of salt, but a simple neural network for this would be trained on a set of cards, then being capable of recognizing each and every one of them. It might reach a very good precision in doing that. However, it's much harder to also train it to discriminate against any previously unknown card, since there are no data on how that card relates to the properties of the training set. A somewhat absurd example would be that it would be totally fantastic in identifying separate Centrino chips of even the same fabrication batch, but if you put in any D-link card of a specific model, it will always give a false positive as the laptop of the boss, with him roaming around the office complex watching pr0n. (Hm, sounds like a BOFH scenario to me).

    This also means possibly expensive retraining each time a new card is added to the set. The "false positive" problem could possibly be avoided to some degree by applying some more traditional signal processing on the result, with just the binary question "is this signal similar to the training signal that the neural model chose".

  21. Re:DOS is alive and kicking. on FreeDOS 1.0 Released · · Score: 1

    But, of course, what you used wasn't DOS. It was a native user-mode NT exe with a direct user interface. You know, that's how you can get your RAID driver to load for the recovery console. You even have a tiny registry hive mounted (in addition to the fact that it mounts the registry of the installation you try to recover).

  22. Re:RC? on Windows Vista RC1 Complete · · Score: 1

    And this is certainly nothing new, the Windows 2000 RCs started coming out earlier than this back in 1999, with the OS RTMed in late December, and official release in February 2000.

  23. Re:Depends... on How Much Virtual Memory is Enough? · · Score: 2, Informative

    A note regarding Windows, though: from XP and on, it's very rary that the complete hiberfil.sys is used. Pages are swapped out aggressively to general swap or whatever binary file that's backing read-only pages. The remaining pages are compressed. However, when all these decisions are made, it would be impossible/inconvenient to realize that the file was really too small, so a worst-case allocation is made.

  24. Re:pirates don't care on No Full HD Playback for 32-bit Vista · · Score: 1

    Since, you know, no computer screen in existence can display a higher resolution than 720x480...

  25. Re:The good news... on No Full HD Playback for 32-bit Vista · · Score: 1

    From what I remember of the different edititions, there will be no separate x64 edition in the end, hopefully just two images on the same (dual-layer) DVD, except that the cheapo versions will only be 32-bit. (Like XP Starter of today.) Regarding the prediction of 32-bit preinstalled, this would seem like a pretty strong reason NOT to do that, from the OEM point of view.