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User: neonsignal

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Comments · 438

  1. Re:Old Panoramic Paintings on Disney Research Creates Megastereo - Panoramas With Depth · · Score: 1

    Unfortunately it can't; the method they are talking about relies on the taking of multiple shots that overlap. Because the camera is mounted on a swing arm, the overlapping shots are also taken at different locations, which enables depth to be reconstructed from what are effectively stereo pairs. The only tricky part is that the stereo pairs have been taken facing in different directions, so the algorithm has to compensate for this.

    While it is true that the panaromic painting may have been observed from different points at a tower, each spot in the scene only corresponds to a single point in the painting, so the stereo information has been lost.

  2. Re:Newsflash: Teens make bad decisions on Teens, Social Media, and Privacy · · Score: 1

    you shouldn't be ashamed for people to know who you are

    ... says Anonymous Coward

  3. Re:Stories like this... on Major Advance Towards a Proof of the Twin Prime Conjecture · · Score: 1

    Understanding primes is fundamental to an understanding of number theory.

    Number theory itself is pure mathematics, which concerns itself with abstract concepts, so the immediate motivation is one of exercising our intelligence and playing with the puzzles that we discover. "Intellectual masturbation", to use your classy phrase, is fun. You should try it sometime.

    But of course, in turn number theory underpins many other areas of mathematics, including for example the discrete mathematics used in the development of computer algorithms, not to mention the numerical analysis we use in engineering.

    You seem to be making the mistake of thinking that research is best directed according to practical goals. Actually, it is more time effective to solve hard and fundamental problems that have general usefulness in the field than it is to pick off application specific tasks that won't have any relevance beyond next year.

    Of course, there has to be a balance here between general and specific. But since the number of people doing pure research is such a small fraction of the population, it is really up to you to justify why we don't have more people studying these matters.

  4. Re: they merely describe on RMS Urges W3C To Reject On Principle DRM In HTML5 · · Score: 2

    Ah, here we go again. The myth that technology and technological standards can be politically neutral. A convenient myth, since it we can then absolve ourselves from any responsibility for how that technology is used.

  5. Re:I'm confused on Linux 3.8 Released · · Score: 5, Funny

    let me guess, you're running Debian stable?

  6. Re:errr on SSH Password Gropers Are Now Trying High Ports · · Score: 1
    • obscurity - "not well known"
    • secrecy - "concealed or hidden"

    So a password is a secret, not an obscurity, and is not sent across the communications channel.

  7. Re:Most security IS security by obscurity. on SSH Password Gropers Are Now Trying High Ports · · Score: 1

    "security through obscurity" usually refers to obscuring the design of a system, not to key secrecy. Unlike design obscurity, secret keys provide a measurable barrier to brute force attacks.

    Changing port number for ssh is interesting to classify. If chosen it randomly for each system being set up, it could be argued that it wasn't a design obscurity. But it doesn't add to the total security against a targeted attack, because the port number can be determined prior to key forcing (and in a lot shorter time). Also, the port number is not secret, in the sense that it is sent in clear text across the network when the real user logs in.

    Of course, changing port number may have practical advantages (reducing traffic, simplifying logs). But it isn't a security strategy.

  8. +1 spam on Pepsi To Release New Breakfast Mountain Dew · · Score: 1
  9. Re:memo to hardware producers on Samsung Laptop Bug Is Not Linux Specific · · Score: 5, Insightful

    The reason it was noticed on Linux is because a portion of this UEFI space is being used to keep a non-volatile copy of the most recent kernel log messages (so that on a crash event, it is easier to find out what happened).

  10. Re:So tablets at PCs now? on Apple Now the Top PC Vendor, For Some Values of PC · · Score: 1

    Why should someone need an Apple developer account to code the device that they own? How is that a general purpose computing device? It's not about the money, it's about all the strings attached. I can program my microwave oven if I really wanted to, but the manufacturer did not intend for me to do so. Apple is mighty close to having the same attitude towards its clients; it intends them to be consumers, not creators. So they forfeit the right to describe their fashion items as computers.

  11. Re:VMS and Atari ST development tools on The History of Visual Development Environments · · Score: 1

    Yes, Turbo Pascal wasn't sophisticated, but on CP/M it was a game changer. I bought a copy in 1984, because the alternative was Pascal/MT. MT was excruciatingly slow (taking something like 9 passes over the file, which was of course being read from a floppy on each pass). Because Turbo was all in one, the whole thing could run out of memory, which took the edit/compile/test process down from minutes to seconds.

  12. Re: GMO perfectly is safe on Hidden Viral Gene Discovered In GMO Crops · · Score: 1

    The issue here is not whether all genetic modification is safe, it is about the misleading reporting of a scientific article. The scientific community do have ethical concerns about safety, which is why such studies are performed in the first place.

    In this particular instance, they were screening for toxins that could be produced in error by a sequence. In the particular gene they were looking at (one commonly used to promote expression of proteins for another inserted gene), they couldn't find any. This doesn't automatically make it safe, but it rules out a set of potential issues.

    And remember, such allergens/toxins can be produced in non-modified organisms, which is why we even know about them in the first place.

  13. Re: sensible, realistic protection on Pirate Party Becomes a Registered Political Party In Australia · · Score: 2

    Have you read the Pirate Party's submission regarding copyright review, or their submission regarding patent reform? Do you have specific points of disagreement other than just implying that it is not sensible?

  14. Re: name them on What Did Google Earth Spot In the Chinese Desert? · · Score: 1

    Canberra. No one knows why anyone would want to live there.

  15. Re: artificial photosynthetic cells on DOE Asks For 30-Petaflop Supercomputer · · Score: 3, Insightful

    Are you really claiming that a computer being run by Los Alamos and called Trinity is primarily going to be used for alternative energy?

  16. Re:Irony? on Microsoft Says Google Trying To Undermine Windows Phone · · Score: 1

    Exactly; the only Skype API that is "open" is the scripting interface to the proprietary client software; not to the Skype network itself.

  17. Re:Cautionary tale on Antivirus Software Performs Poorly Against New Threats · · Score: 1

    Psychological comfort. Because it is nice to know that you weren't just being paranoid when you go to the trouble to reinstall everything.

  18. Re:Chinese on Ask Slashdot: 2nd Spoken/Written Language For Software Developer? · · Score: 4, Insightful

    Many language varieties in China would be seen by linguists as distinct. Compare putonghua or guangzhou hua with holooe. Whether you call these 'dialects' or 'languages' or fangyan depends on how you define the term 'language'.

    While it is true that some spoken variants of English are quite difficult for other English speakers to understand (such as Black Country English, or the Glasgow Patter), there's not the linguistic range that you would find between the Chinese languages/dialects. Most English varieties are mutually intelligible, and differ primarily in pronunciation and a few words.

  19. Re:It is time. on 27 Reported Killed In Connecticut Elementary School Shooting · · Score: 1

    Interestingly, the Switzerland firearm-related deaths per capita are not that much lower than for the United States. The firearm related suicide rate is roughly the same. But the firearm-related homicide rate for the United States is significantly higher. Interpret that how you will.

  20. Re:Locks on Book Reviews: Lockpicking Books From Deviant Ollam · · Score: 2

    And of course you need to consider other risks, not just theft. If the place catches fire, you may not be able to get out of the window.

  21. Re:use encryption on Julian Assange: "Online Totalitarianism Is Near, Entire Nations Are Intercepted" · · Score: 1

    The aim here is not to shield a single individual from government intercept, but to protect the wider community from wholesale surveillance by the state.

    The latter requires simply that strong encryption becomes defacto, as part of email, as part of browsing the web, as part of all communication. The primary difficulties are not around message encryption (for example, many people use Skype, which is encrypted by default), but the decentralization of keys in a way that is usable en masse.

  22. Re:use encryption on Julian Assange: "Online Totalitarianism Is Near, Entire Nations Are Intercepted" · · Score: 1

    Assymetric cryptography is used for key exchange in transport layer security. So this protects you from man-in-the-middle attacks, since the private key is never transmitted (and the session keys are encrypted), at least in an ideal world where implementations are perfect.

    The real structural issue is the chain of trust; the certificate authorities are rather more centralized than is healthy. But subverting these involves more than just sitting in the middle of the network.

  23. Re:Without the use of a loop!? on How Does a Single Line of BASIC Make an Intricate Maze? · · Score: 1

    for the maze effect, you need an old fashioned micro with a character size so small (eg 8 pixels square) that the slash characters were forced to go from one corner to the opposite just to make them legible...

  24. requirements list for such a tablet on Ask Slashdot: Tablets For Papers; Are We There Yet? · · Score: 1

    A4 size
    at least 150dpi
    daylight readable
    a day or more battery life
    robust but light
    able to take annotations
    minimal DRM sillyness
    quick page turns

  25. Re: does not do type checking on Swedish Stock Exchange Hit By Programming Snafu · · Score: 2

    C does indeed do type checking; the issue here is that there are a number of implicit conversions (coercions) defined by the language.

    You can enable warnings in many compilers that will flag potential problems caused by such coercions (for example, '-Wconversion' in gcc).