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Luís F. Simões

Polynomial Time Code For 3-SAT Released, P==NP - Slashdot - 0 views

  • "Vladimir Romanov has released what he claims is a polynomial-time algorithm for solving 3-SAT. Because 3-SAT is NP-complete, this would imply that P==NP. While there's still good reason to be skeptical that this is, in fact, true, he's made source code available and appears decidedly more serious than most of the people attempting to prove that P==NP or P!=NP. Even though this is probably wrong, just based on the sheer number of prior failures, it seems more likely to lead to new discoveries than most. Note that there are already algorithms to solve 3-SAT, including one that runs in time (4/3)^n and succeeds with high probability. Incidentally, this wouldn't necessarily imply that encryption is worthless: it may still be too slow to be practical."
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    here we go again...
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    slashdot: "Russian computer scientist Vladimir Romanov has conceded that his previously published solution to the '3 SAT' problem of boolean algebra does not work."
LeopoldS

July 2011: The Future of Energy | Popular Science - 3 views

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    SPS story ...
LeopoldS

Mega space storm would kill satellites for a decade - space - 13 September 2011 - New Scientist - 0 views

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    this is the new scientist version of ithe story ...
pacome delva

Galaxy Zoo 2 : The Story So Far - 3 views

  • The original Galaxy Zoo was launched in July 2007, with a data set made up of a million galaxies imaged with the robotic telescope of the Sloan Digital Sky Survey. With so many galaxies, the team thought that it might take at least two years for visitors to the site to work through them all. Within 24 hours of launch, the site was receiving 70,000 classifications an hour, and more than 50 million classifications were received by the project during its first year, from almost 150,000 people.
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    this is what I call a nice example of crowdsourcing or citizen scientists .... (remember my idea in the ideastorm ?? :-)
Francesco Biscani

Slashdot News Story | Stock Market Manipulation By Millisecond Trading - 0 views

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    Interesting article on ultra-fast stock market manipulation.
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    Quotes from the comments: "I know for a fact a few houses have been able to get micro-second trades, whereas the rest of the industry is still dealing in milli-second trades." For when the nano-second trades...!
Francesco Biscani

Slashdot Hardware Story | Robotic Glider Set To Break Autonomous Flight Records - 0 views

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    Pretty amazing.
Francesco Biscani

Slashdot Technology Story | Unix Turns 40 - 0 views

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    while [[ 1 ]]; do echo 'Happy birthday!'; done
Francesco Biscani

Slashdot Science Story | String Theory Predicts Behavior of Superfluids - 0 views

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    "String theory" and "predict" in the same sentence?!?
Francesco Biscani

Slashdot Science Story | First Acoustic Black Hole Created - 0 views

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    This would be really cool, hawking radiation yeah !
LeopoldS

14-Jähriger überlebt Meteoriteneinschlag - Webmix - derStandard.at/Web - 0 views

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    sorry for the german language ... nice story ... true??
Francesco Biscani

Slashdot Science Story | NASA Suggests Nano Robots To Explore Mars - 0 views

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    Sounds pretty much Sci-Fi...
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