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tvinko

Massively collaborative mathematics : Article : Nature - 28 views

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    peer-to-peer theorem-proving
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    Or: mathematicians catch up with open-source software developers :)
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    "Similar open-source techniques could be applied in fields such as [...] computer science, where the raw materials are informational and can be freely shared online." ... or we could reach the point, unthinkable only few years ago, of being able to exchange text messages in almost real time! OMG, think of the possibilities! Seriously, does the author even browse the internet?
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    I do not agree with you F., you are citing out of context! Sharing messages does not make a collaboration, nor does a forum, .... You need a set of rules and a common objective. This is clearly observable in "some team", where these rules are lacking, making team work inexistent. The additional difficulties here are that it involves people that are almost strangers to each other, and the immateriality of the project. The support they are using (web, wiki) is only secondary. What they achieved is remarkable, disregarding the subject!
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    I think we will just have to agree to disagree then :) Open source developers have been organizing themselves with emails since the early '90s, and most projects (e.g., the Linux kernel) still do not use anything else today. The Linux kernel mailing list gets around 400 messages per day, and they are managing just fine to scale as the number of contributors increases. I agree that what they achieved is remarkable, but it is more for "what" they achieved than "how". What they did does not remotely qualify as "massively" collaborative: again, many open source projects are managed collaboratively by thousands of people, and many of them are in the multi-million lines of code range. My personal opinion of why in the scientific world these open models are having so many difficulties is that the scientific community today is (globally, of course there are many exceptions) a closed, mostly conservative circle of people who are scared of changes. There is also the fact that the barrier of entry in a scientific community is very high, but I think that this should merely scale down the number of people involved and not change the community "qualitatively". I do not think that many research activities are so much more difficult than, e.g., writing an O(1) scheduler for an Operating System or writing a new balancing tree algorithm for efficiently storing files on a filesystem. Then there is the whole issue of scientific publishing, which, in its current form, is nothing more than a racket. No wonder traditional journals are scared to death by these open-science movements.
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    here we go ... nice controversy! but maybe too many things mixed up together - open science journals vs traditional journals, conservatism of science community wrt programmers (to me one of the reasons for this might be the average age of both groups, which is probably more than 10 years apart ...) and then using emailing wrt other collaboration tools .... .... will have to look at the paper now more carefully ... (I am surprised to see no comment from José or Marek here :-)
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    My point about your initial comment is that it is simplistic to infer that emails imply collaborative work. You actually use the word "organize", what does it mean indeed. In the case of Linux, what makes the project work is the rules they set and the management style (hierachy, meritocracy, review). Mailing is just a coordination mean. In collaborations and team work, it is about rules, not only about the technology you use to potentially collaborate. Otherwise, all projects would be successful, and we would noy learn management at school! They did not write they managed the colloboration exclusively because of wikipedia and emails (or other 2.0 technology)! You are missing the part that makes it successful and remarkable as a project. On his blog the guy put a list of 12 rules for this project. None are related to emails, wikipedia, forums ... because that would be lame and your comment would make sense. Following your argumentation, the tools would be sufficient for collaboration. In the ACT, we have plenty of tools, but no team work. QED
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    the question on the ACT team work is one that is coming back continuously and it always so far has boiled down to the question of how much there need and should be a team project to which everybody inthe team contributes in his / her way or how much we should leave smaller, flexible teams within the team form and progress, more following a bottom-up initiative than imposing one from top-down. At this very moment, there are at least 4 to 5 teams with their own tools and mechanisms which are active and operating within the team. - but hey, if there is a real will for one larger project of the team to which all or most members want to contribute, lets go for it .... but in my view, it should be on a convince rather than oblige basis ...
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    It is, though, indicative that some of the team member do not see all the collaboration and team work happening around them. We always leave the small and agile sub-teams to form and organize themselves spontaneously, but clearly this method leaves out some people (be it for their own personal attitude or be it for pure chance) For those cases which we could think to provide the possibility to participate in an alternative, more structured, team work where we actually manage the hierachy, meritocracy and perform the project review (to use Joris words).
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    I am, and was, involved in "collaboration" but I can say from experience that we are mostly a sum of individuals. In the end, it is always one or two individuals doing the job, and other waiting. Sometimes even, some people don't do what they are supposed to do, so nothing happens ... this could not be defined as team work. Don't get me wrong, this is the dynamic of the team and I am OK with it ... in the end it is less work for me :) team = 3 members or more. I am personally not looking for a 15 member team work, and it is not what I meant. Anyway, this is not exactly the subject of the paper.
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    My opinion about this is that a research team, like the ACT, is a group of _people_ and not only brains. What I mean is that people have feelings, hate, anger, envy, sympathy, love, etc about the others. Unfortunately(?), this could lead to situations, where, in theory, a group of brains could work together, but not the same group of people. As far as I am concerned, this happened many times during my ACT period. And this is happening now with me in Delft, where I have the chance to be in an even more international group than the ACT. I do efficient collaborations with those people who are "close" to me not only in scientific interest, but also in some private sense. And I have people around me who have interesting topics and they might need my help and knowledge, but somehow, it just does not work. Simply lack of sympathy. You know what I mean, don't you? About the article: there is nothing new, indeed. However, why it worked: only brains and not the people worked together on a very specific problem. Plus maybe they were motivated by the idea of e-collaboration. No revolution.
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    Joris, maybe I made myself not clear enough, but my point was only tangentially related to the tools. Indeed, it is the original article mention of "development of new online tools" which prompted my reply about emails. Let me try to say it more clearly: my point is that what they accomplished is nothing new methodologically (i.e., online collaboration of a loosely knit group of people), it is something that has been done countless times before. Do you think that now that it is mathematicians who are doing it makes it somehow special or different? Personally, I don't. You should come over to some mailing lists of mathematical open-source software (e.g., SAGE, Pari, ...), there's plenty of online collaborative research going on there :) I also disagree that, as you say, "in the case of Linux, what makes the project work is the rules they set and the management style (hierachy, meritocracy, review)". First of all I think the main engine of any collaboration like this is the objective, i.e., wanting to get something done. Rules emerge from self-organization later on, and they may be completely different from project to project, ranging from almost anarchy to BDFL (benevolent dictator for life) style. Given this kind of variety that can be observed in open-source projects today, I am very skeptical that any kind of management rule can be said to be universal (and I am pretty sure that the overwhelming majority of project organizers never went to any "management school"). Then there is the social aspect that Tamas mentions above. From my personal experience, communities that put technical merit above everything else tend to remain very small and generally become irrelevant. The ability to work and collaborate with others is the main asset the a participant of a community can bring. I've seen many times on the Linux kernel mailing list contributions deemed "technically superior" being disregarded and not considered for inclusion in the kernel because it was clear that
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    hey, just catched up the discussion. For me what is very new is mainly the framework where this collaborative (open) work is applied. I haven't seen this kind of working openly in any other field of academic research (except for the Boinc type project which are very different, because relying on non specialists for the work to be done). This raise several problems, and mainly the one of the credit, which has not really been solved as I read in the wiki (is an article is written, who writes it, what are the names on the paper). They chose to refer to the project, and not to the individual researchers, as a temporary solution... It is not so surprising for me that this type of work has been first done in the domain of mathematics. Perhaps I have an ideal view of this community but it seems that the result obtained is more important than who obtained it... In many areas of research this is not the case, and one reason is how the research is financed. To obtain money you need to have (scientific) credit, and to have credit you need to have papers with your name on it... so this model of research does not fit in my opinion with the way research is governed. Anyway we had a discussion on the Ariadnet on how to use it, and one idea was to do this kind of collaborative research; idea that was quickly abandoned...
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    I don't really see much the problem with giving credit. It is not the first time a group of researchers collectively take credit for a result under a group umbrella, e.g., see Nicolas Bourbaki: http://en.wikipedia.org/wiki/Bourbaki Again, if the research process is completely transparent and publicly accessible there's no way to fake contributions or to give undue credit, and one could cite without problems a group paper in his/her CV, research grant application, etc.
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    Well my point was more that it could be a problem with how the actual system works. Let say you want a grant or a position, then the jury will count the number of papers with you as a first author, and the other papers (at least in France)... and look at the impact factor of these journals. Then you would have to set up a rule for classifying the authors (endless and pointless discussions), and give an impact factor to the group...?
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    it seems that i should visit you guys at estec... :-)
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    urgently!! btw: we will have the ACT christmas dinner on the 9th in the evening ... are you coming?
LeopoldS

Google Code Blog: Introducing Closure Tools - 1 views

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    new open source tool from google .... Francesco: of any interest to us?
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    I don't think so, it is just a code optimizer for JavaScript, unless there are somewhere big JavaScript (web2.0) applications running that is not of much interest for us Other google labs systems e.g. FriendConnect could be useful for Ariadnet, maybe also the visualization and social graph API
Tobias Seidl

eTBlast > Search - 0 views

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    A tool to compare texts for similarities.
santecarloni

[1101.6015] Radio beam vorticity and orbital angular momentum - 1 views

  • It has been known for a century that electromagnetic fields can transport not only energy and linear momentum but also angular momentum. However, it was not until twenty years ago, with the discovery in laser optics of experimental techniques for the generation, detection and manipulation of photons in well-defined, pure orbital angular momentum (OAM) states, that twisted light and its pertinent optical vorticity and phase singularities began to come into widespread use in science and technology. We have now shown experimentally how OAM and vorticity can be readily imparted onto radio beams. Our results extend those of earlier experiments on angular momentum and vorticity in radio in that we used a single antenna and reflector to directly generate twisted radio beams and verified that their topological properties agree with theoretical predictions. This opens the possibility to work with photon OAM at frequencies low enough to allow the use of antennas and digital signal processing, thus enabling software controlled experimentation also with first-order quantities, and not only second (and higher) order quantities as in optics-type experiments. Since the OAM state space is infinite, our findings provide new tools for achieving high efficiency in radio communications and radar technology.
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    It has been known for a century that electromagnetic fields can transport not only energy and linear momentum but also angular momentum. However, it was not until twenty years ago, with the discovery in laser optics of experimental techniques for the generation, detection and manipulation of photons in well-defined, pure orbital angular momentum (OAM) states, that twisted light and its pertinent optical vorticity and phase singularities began to come into widespread use in science and technology. We have now shown experimentally how OAM and vorticity can be readily imparted onto radio beams. Our results extend those of earlier experiments on angular momentum and vorticity in radio in that we used a single antenna and reflector to directly generate twisted radio beams and verified that their topological properties agree with theoretical predictions. This opens the possibility to work with photon OAM at frequencies low enough to allow the use of antennas and digital signal processing, thus enabling software controlled experimentation also with first-order quantities, and not only second (and higher) order quantities as in optics-type experiments. Since the OAM state space is infinite, our findings provide new tools for achieving high efficiency in radio communications and radar technology.
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    and how can we use this?
Athanasia Nikolaou

NASA Vesta Trek - 2 views

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    NASA Releases Tool Enabling Citizen Scientists to Examine Asteroid Vesta Vesta Trek is a free, web-based application that provides detailed visualizations of Vesta, one of the largest asteroids in our solar system. NASA's Dawn spacecraft studied Vesta from July 2011 to September 2012. Data gathered from multiple instruments aboard Dawn have been compiled into Vesta Trek's user-friendly set of tools, enabling citizen scientists and students to study the asteroid's features. The application includes: -- Interactive maps with the ability to overlay a growing range of data sets including topography, mineralogy, abundance of elements and geology, as well as analysis tools for measuring the diameters, heights and depths of surface features and more. -- 3-D printer-exportable topography so users can print physical models of Vesta's surface. -- Standard keyboard gaming controls to manoever a first-person visualization of "flying" across the surface of the asteroid. "There's nothing like seeing something with your own eyes, but these types of detailed data-visualizations are the next best thing," said Kristen Erickson, Director, Science Engagement and Partnerships at NASA Headquarters in Washington DC.
LeopoldS

In the News : Quid, Inc. - 3 views

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    Anybody knows them? What mathematic tools are behind their products?
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    I'm pretty sure they use additions and subtractions. Maybe even some funky multiplications :)
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    Wouldn't have guessed
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    Francesco, I missed your comments :) :)
jcunha

CRISPR/Cas9 and Targeted Genome Editing: A New Era in Molecular Biology | NEB - 1 views

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    An incresingly popular scientific enome re-writting tool. Might prevent future generations from being born with some types of disorders or disabilities! Also, for fun, can be looked at one step closer to having a real wolverine..
Alexander Wittig

Google AI experiment: fast drawing for everyone - 0 views

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    AutoDraw is a new kind of drawing tool. It pairs machine learning with drawings from talented artists to help everyone create anything visual, fast. There's nothing to download. Nothing to pay for. And it works anywhere: smartphone, tablet, laptop, desktop, etc. AutoDraw's suggestion tool uses the same technology used in QuickDraw, to guess what you're trying to draw. Right now, it can guess hundreds of drawings and we look forward to adding more over time. If you are interested in creating drawings for others to use with AutoDraw, contact us here. We hope AutoDraw will help make drawing and creating a little more accessible and fun for everyone.
LeopoldS

Cryptocat - 5 views

shared by LeopoldS on 18 Apr 12 - No Cached
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    tool to avoid big brother listening in ...
LeopoldS

Erdős-Bacon number - Wikipedia, the free encyclopedia - 2 views

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    ever heard of the Erdős-Bacon number? :-)
  • ...1 more comment...
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    There is a tool (http://www.ams.org/mathscinet/collaborationDistance.html) which computes your Erdös number. But who cares about Kevin Bacon?
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    and actors probably ask who cares about Erdős :) The network of actors who co-star in movies is a famous one among networks people. Kevin Bacon became famous in that network because of fans of his who could from memory trace the paths of a large number of actors back to him :) see: http://en.wikipedia.org/wiki/Six_Degrees_of_Kevin_Bacon#History If you have you publications in http://academic.research.microsoft.com/, it gives you a nice tool to visualize your graph up to Erdős. Apparently I have a path of length 4, and several of length 5: http://academic.research.microsoft.com/VisualExplorer#36695545&1112639
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    and for the actors http://oracleofbacon.org/
LeopoldS

ownCloud.org | Your Cloud, Your Data, Your Way! - 1 views

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    wouldn't this be a very nice tool instead of our shared drive - or to start with in addition to our shared drive? anybody has already tried installing it? should we propose it to the CDF? or is there even an esanet drupal integration maybe?
jmlloren

Cool Tools - Systemantics - 1 views

shared by jmlloren on 26 Feb 14 - No Cached
dejanpetkow liked it
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    We begin at the beginning, with the Fundamental Theorem: New systems mean new problems.
LeopoldS

Cell phones are 'Stalin's dream,' says free software movement founder - 3 views

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    "I don't have a cell phone. I won't carry a cell phone," says Stallman, founder of the free software movement and creator of the GNU operating system. "It's Stalin's dream. Cell phones are tools of Big Brother. I'm not going to carry a tracking device that records where I go all the time, and I'm not going to carry a surveillance device that can be turned on to eavesdrop." he is right once more ...
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    I am going to live in the forest! Sadly, while true, there's no way around it these days. On the up-side the information overflow these days exceeds processing speeds. Soon it will become increasingly difficult for NSA or other organizations to find anything in the tons of data they stash away. Like some guy said in a random youtube video I can't find now anymore: "good luck trying to find my personal data when I'm tagged in 5000 pictures of cats!"
jmlloren

HUBbub 2013 - 0 views

shared by jmlloren on 21 Aug 13 - No Cached
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    HUBbub 2013 is the annual conference for researchers, educators, and IT professionals engaged in building and using cyberinfrastructure. Learn about the latest features in the HUBzero tool box and how they can be used to address the unique challenges of scientific pursuits.
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    It is probably more interesting to check the parent site: hubzero.org: HUBzero ® is a powerful, open source software platform for creating dynamic web sites that support scientific research and educational activities.
LeopoldS

SparkleShare - Sharing work made easy - 3 views

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    alternative to Dropbox that is fully open source and installable on own servers - looks like a nice tool for us ...
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    .. and it's based on GIT! (the "proper geeky alternative to Subversion" thingie we are using to manage PaGMO's source code)
Dario Izzo

File Compression: New Tool for Life Detection? - 4 views

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    As mentioned today during coffee .... we could think to link this to source localization
  • ...3 more comments...
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    Not sure by what you mean by source localisation, but this using gzip to discern "biological" from "non-biological" images seems to me *very* tricky... I mean, there's a lot of other factors that may affect compressibility of an image than just mere "regularity" of the pattern, and if they haven't controlled for these, this is just bullsh1t... (For instance did they use the same imaging device to take those images? What about lighting conditions and exposure? etc). The apostle of sometimes surprising uses of compression is prof. Shmidhuber from IDSIA...
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    I completely agree with you..... still if you have one instrument on board the spacecraft and your picture compressibility is a noisy indicator of some interesting source .... we could try to perform some probabilistic reasoning
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    I think they (IDSIA-Schmidhuber) are planning on putting something about that also inside the Acta Futura paper...
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    Really, you think they'd target such a low impact factor publication? ;-P
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    you will all soon be begging to publish in Acta Futura! We will be bigger than Nature.
LeopoldS

In the Next Industrial Revolution, Atoms Are the New Bits | Magazine - 1 views

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    nice article - should be a nice tool to make your own small cubesat - who will be first?
Francesco Biscani

What Should We Teach New Software Developers? Why? | January 2010 | Communications of t... - 3 views

shared by Francesco Biscani on 15 Jan 10 - Cached
Dario Izzo liked it
  • Industry wants to rely on tried-and-true tools and techniques, but is also addicted to dreams of "silver bullets," "transformative breakthroughs," "killer apps," and so forth.
  • This leads to immense conservatism in the choice of basic tools (such as programming languages and operating systems) and a desire for monocultures (to minimize training and deployment costs).
  • The idea of software development as an assembly line manned by semi-skilled interchangeable workers is fundamentally flawed and wasteful.
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    Nice opinion piece by the creator of C++ Bjarne Stroustrup. Substitute "industry" with "science" and many considerations still apply :)
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    "for many, "programming" has become a strange combination of unprincipled hacking and invoking other people's libraries (with only the vaguest idea of what's going on). The notions of "maintenance" and "code quality" are typically forgotten or poorly understood. " ... seen so many of those students :( and ad "My suggestion is to define a structure of CS education based on a core plus specializations and application areas", I am not saying the austrian university system is good, but e.g. the CS degrees in Vienna are done like this, there is a core which is the same for everybody 4-5 semester, and then you specialise in e.g. software engineering or computational mgmt and so forth, and then after 2 semester you specialize again into one of I think 7 or 8 master degrees ... It does not make it easy for industry to hire people, as I have noticed, they sometimes really have no clue what the difference between Software Engineering is compared to Computational Intelligence, at least in HR :/
LeopoldS

DTerm: A command line anywhere and everywhere - 3 views

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    Juxi, Dario and Eduardo .... you might like this tool
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    ah cool, I used Visor (http://docs.blacktree.com/visor/visor) a while back
LeopoldS

CREAX Analytics - 0 views

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    nice tool - just saw the demonstration - a bit expensive though in my view ....
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