Skip to main content

Home/ Advanced Concepts Team/ Group items tagged survey

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
LeopoldS

Open source is taking over the software world, survey says | PCWorld - 4 views

www.pcworld.com/...oftware-world-survey-says.html

shared by LeopoldS on 20 Apr 13 - No Cached
  • dejanpetkow on 23 Apr 13
     
    The pitfalls of statistics :)
  • Dario Izzo on 05 May 13
     
    and after the software world we will take over all :)
Ma Ru

Structured population genetic algorithms: a literature survey - 2 views

www.springerlink.com/...l274720520074736

Science INF PyGMO island model genetic algorithms evolution survey

shared by Ma Ru on 13 Feb 12 - No Cached
  • Ma Ru on 13 Feb 12
     
    Might be a useful reference for PyGMO-related works.
santecarloni

A Dozen Years In The Making, Highest Resolution Picture Of Universe Released | Singular... - 0 views

singularityhub.com/...n-picture-of-universe-released

universe Phy space Science

shared by santecarloni on 06 Mar 12 - No Cached
LeopoldS liked it
  • santecarloni on 06 Mar 12
     
    ...Covering about a third of the sky, the new image contains 10 times as many objects as the Palomar Survey, or about half a billion. The higher resolution scan is a goldmine for astronomers and is expected to lead to discoveries "for decades to come"...
pacome delva

A New Way to Map the Universe - 0 views

news.sciencemag.org/...w-way-to-map-the-universe.html

phy astrophysics survey

shared by pacome delva on 22 Jul 10 - Cached
Nicholas Lan liked it
  • A new technique might soon enable cosmologists to map the universe even when they can't pick out individual galaxies. If it works, researchers would be able to probe the structure of 500 times as much of the universe as they have studied so far.
  • With a purpose-built radio telescope, the approach could map as much as 50% of the observable universe far faster and cheaper than galaxy surveys can, Loeb says.
  • Nicholas Lan on 22 Jul 10
     
    impressive
nikolas smyrlakis

Space headache: a new health complaint for astronauts | COSMOS magazine - 0 views

www.cosmosmagazine.com/...ew-health-complaint-astronauts

astronauts headache leiden

shared by nikolas smyrlakis on 03 Jun 09 - Cached
  • nikolas smyrlakis on 03 Jun 09
     
    a survey made by Leiden University yeah!
Ma Ru

Here come gravitational waves - 3 views

www.nature.com/...of-gravitational-waves-1.14876

science PHY gravitational waves Lisa Nature

shared by Ma Ru on 17 Mar 14 - No Cached
  • Ma Ru on 17 Mar 14
     
    Here you go. You can now scrap Lisa altogether. Who's going to tell Pacome?
  • Thijs Versloot on 18 Mar 14
     
    Awesome and exciting stuff indeed! The data pinpoint the time when inflation occurred - about 10E-37 seconds into the Universe's life - and its temperature at the time, corresponding to energies of about 10E16 gigaelectronvolts, says cosmologist Michael Turner of the University of Chicago. That is the same energy at which three of the four fundamental forces of nature - the weak, strong and electromagnetic force - are expected to become indistinguishable from one another in a model known as the grand unified theory. I expect more fundamental physics insights to come out of this in the future. A full-sky survey from space may still be an interesting addition to the measurement capabilities, so I would not rule out LISA all together I guess...
Juxi Leitner

How I became a Foursquare cyberstalker | Technology | The Guardian - 0 views

www.guardian.co.uk/...foursquare

tech technology INF fun privacy geo location social networks

shared by Juxi Leitner on 23 Jul 10 - Cached
  • Foursquare is now being widely touted as the app which will, after years of anticipation and prediction, mark the beginning of "life as a game" computing. Whatever you do, wherever you go, you will be scoring points, earning "medals", and be in, at the very least, social competition with other users around you.
  • Privacy seems to be very low down their priorities. In theory, if every user knows the risks, this is fine. But they just don't. It's being targeted at 18 to 25-year-olds. Facebook was forced in the end to change its default privacy settings due to public concerns. Foursquare should do the same. Some people are even checking in when they're at home. Think of the implications. It's crazy
  • Recruitment is a form of stalking, I suppose. But I can now see the negative implications of Foursquare in the real world.
  • ...1 more annotation...
  • Ten days ago Foursquare reached the two-million-users landmark, just three months after it had reached the one-million mark. A week earlier, the company received $20m in venture capital from a who's who of Silicon Valley luminaries. It appears the trajectory for Foursquare is only upwards. But as the critical mass of Foursquare users swells and intensifies over the coming months and years, the concerns over privacy are likely to magnify. In June, Webroot, a Denver-based internet security firm, surveyed 1,645 users of "geo-location-ready mobile devices", including 624 in the UK: 29% said they shared their location with people other than their friends; 31% said they accepted a friend request from a stranger; and, yet, 55% still said they were worried about their loss of privacy.
  • Juxi Leitner on 23 Jul 10
     
    anybody here using Foursquare already? Location is supposed to be "the future" (this time)
  • LeopoldS on 24 Jul 10
     
    this is worse than having a mobile ... !
pacome delva

Galaxy study backs general relativity - 1 views

physicsworld.com/...41948

galaxy general_relativity gravitational_lensing survey

shared by pacome delva on 16 Mar 10 - Cached
  • The observed ratio, dubbed EG, has a value of 0.39 ± 0.06. This agrees with general relativity, which predicts a value of 0.4. Crucially, the measurement rules out the tensor, vector scalar (TeVeS) model of modified gravity, which has an EG of 0.22 and does not need dark matter. The result does not, however, preclude the f(R) theory – which is more similar to general relativity and has EG values in the 0.328–0.365 range.
  • pacome delva on 16 Mar 10
     
    mmm, i wonder if this study takes into account the non linearities studied in the Ariadna on galaxies...
  • LeopoldS on 16 Mar 10
     
    Luzi: any comment?
LeopoldS

News Release: 2010 Mercer Quality of Living survey - 1 views

www.mercer.com/qualityoflivingpr

fun

shared by LeopoldS on 26 May 10 - No Cached
  • LeopoldS on 26 May 10
     
    "Wien Wien nur du allein .... "
  • Ma Ru on 26 May 10
     
    Wait, where's Plymouth??
duncan barker

Can WISE find the hypothetical 'Tyche'? - 0 views

www.physorg.com/...2-wise-hypothetical-tyche.html

shared by duncan barker on 24 Feb 11 - No Cached
  • duncan barker on 24 Feb 11
     
    "In November 2010, the scientific journal Icarus published a paper by astrophysicists John Matese and Daniel Whitmire, who proposed the existence of a binary companion to our sun, larger than Jupiter, in the long-hypothesized "Oort cloud" -- a faraway repository of small icy bodies at the edge of our solar system. The researchers use the name "Tyche" for the hypothetical planet. Their paper argues that evidence for the planet would have been recorded by the Wide-field Infrared Survey Explorer (WISE)."
Luís F. Simões

When Astronomy Met Computer Science | Cosmology | DISCOVER Magazine - 1 views

discovermagazine.com/...astronomy-met-computer-science

astronomy INF data mining

shared by Luís F. Simões on 25 Jul 11 - No Cached
LeopoldS liked it
  • “That’s impossible!” he told Borne. “Don’t you realize that the entire data set NASA has collected over the past 45 years is one terabyte?”
  • The LSST, producing 30 terabytes of data nightly, will become the centerpiece of what some experts have dubbed the age of peta­scale astronomy—that’s 1015 bits (what Borne jokingly calls “a tonabytes”).
  • A major sky survey might detect millions or even billions of objects, and for each object we might measure thousands of attributes in a thousand dimensions. You can get a data-mining package off the shelf, but if you want to deal with a billion data vectors in a thousand dimensions, you’re out of luck even if you own the world’s biggest supercomputer. The challenge is to develop a new scientific methodology for the 21st century.”
  • LeopoldS on 25 Jul 11
     
    Francesco please look at this and get back wrt to the /. question .... thanks
santecarloni

Was the universe born spinning? - physicsworld.com - 2 views

physicsworld.com/...46688

PHY science space left and right

shared by santecarloni on 29 Jul 11 - No Cached
LeopoldS liked it
  • santecarloni on 29 Jul 11
     
    following up the discussion at lunchtime over left and right...
  • LeopoldS on 29 Jul 11
     
    ""Longo and a team of five undergraduate students catalogued the rotation direction of 15,158 spiral galaxies with data from the Sloan Digital Sky Survey." Read: "Longo and his five student slaves ..."
pacome delva

Galaxy Zoo 2 : The Story So Far - 3 views

www.galaxyzoo.org/story

astronomy web_community

shared by pacome delva on 26 Oct 09 - Cached
LeopoldS liked it
  • 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.
  • LeopoldS on 27 Oct 09
     
    this is what I call a nice example of crowdsourcing or citizen scientists .... (remember my idea in the ideastorm ?? :-)
Joris _

WISE Mission Assembled and Preparing for Launch - NASA Jet Propulsion Laboratory - 0 views

www.jpl.nasa.gov/...features.cfm

MAD asteroids

shared by Joris _ on 15 Jun 09 - Cached
  • The mission will survey the entire sky at infrared wavelengths,
  • Among expected finds from WISE are hundreds of thousands of asteroids in our solar system's asteroid belt,
ESA ACT

surveyed 1041 students on their attitudes to kissing - 0 views

www.epjournal.net/...EP05612631.pdf

social evolution psychology

shared by ESA ACT on 24 Apr 09 - No Cached
  • ESA ACT on 24 Apr 09
     
    is this science????
LeopoldS

Global Innovation Commons - 4 views

www.globalinnovationcommons.org

innovation open IP

shared by LeopoldS on 31 Oct 09 - Cached
LeopoldS liked it
  • LeopoldS on 31 Oct 09
     
    nice initiative!
  • ...6 more comments...
  • Ma Ru on 31 Oct 09
     
    Any viral licence is a bad license...
  • Francesco Biscani on 31 Oct 09
     
    I'm pretty confident I'm about to open a can of worms, but mind explaining why? :)
  • LeopoldS on 01 Nov 09
     
    I am less worried about the can of worms ... actually eager to open it ... so why????
  • Francesco Biscani on 01 Nov 09
     
    Well, the topic GPL vs other open-source licenses (e.g., BSD, MIT, etc.) is old as the internet and it has provided material for long and glorious flame wars. The executive summary is that the GPL license (the one used by Linux) is a license which imposes some restrictions on the way you are allowed to (re)use the code. Specifically, if you re-use or modify GPL code and re-distribute it, you are required to make it available again under the GPL license. It is called "viral" because once you use a bit of GPL code, you are required to make the whole application GPL - so in this sense GPL code replicates like a virus. On the other side of the spectrum, there are the so-called BSD-like licenses which have more relaxed requirements. Usually, the only obligation they impose is to acknowledge somewhere (e.g., in a README file) that you have used some BSD code and who wrote it (this is called "attribution clause"), but they do not require to re-distribute the whole application under the same license. GPL critics usually claim that the license is not really "free" because it does not allow you to do whatever you want with the code without restrictions. GPL proponents claim that the requirements imposed by the GPL are necessary to safeguard the freedom of the code, in order to avoid being able to re-use GPL code without giving anything back to the community (which the BSD license allow: early versions of Microsoft Windows, for instance, had the networking code basically copy-pasted from BSD-licensed versions of Unix). In my opinion (and this point is often brought up in the debates) the division pro/against GPL mirrors somehow the division between anti/pro anarchism. Anarchists claim that the only way to be really free is the absence of laws, while non-anarchist maintain that the only practical way to be free is to have laws (which by definition limit certain freedoms). So you can see how the topic can quickly become inflammatory :) GPL at the current time is used by aro
  • Francesco Biscani on 01 Nov 09
     
    whoa, the comment got cut off. Anyway, I was just saying that at the present time the GPL license is used by around 65% of open source projects, including the Linux kernel, KDE, Samba, GCC, all the GNU utils, etc. The topic is much deeper than this brief summary, so if you are interested in it, Leopold, we can discuss it at length in another place.
  • LeopoldS on 01 Nov 09
     
    Thanks for the record long comment - am sure that this is longest ever made to an ACT diigo post! On the topic, I would rather lean for the GPL license (which I also advocated for the Marek viewer programme we put on source forge btw), mainly because I don't trust that open source is by nature delivering a better product and thus will prevail but I still would like to succeed, which I am not sure it would if there were mainly BSD like licenses around. ... but clearly, this is an outsider talking :-)
  • LeopoldS on 01 Nov 09
     
    btw: did not know the anarchist penchant of Marek :-)
  • Ma Ru on 01 Nov 09
     
    Well, not going into the discussion about GPL/BSD, the viral license in this particular case in my view simply undermines the "clean and clear" motivations of the initiative authors - why should *they* be credited for using something they have no rights for? And I don't like viral licences because they prevent using things released under this licence to all those people who want to release their stuff under a different licence, thus limiting the usefulness of the stuff released on that licence :) BSD is not a perfect license too, it also had major flaws And I'm not an anarchist, lol
1 - 17 of 17
Showing 20▼ items per page