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Kellie Ramm

How Many Computers Does It Take to Make Contact with E.T.s? - 1 views

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    This resource, an article from the Wall Street Journal, is a more current take on the SETI @home project. It can be more easily understood by the average reader and gives a summary of both the history of the SETI @home project, and information on where it stands today. It also discusses further details of "distributed computing". According to this resource, late in the 1990s University of California, Berkeley scientist David P. Anderson thought that the millions of "often-idle computers"(Gomes, 2006) could be better utilised in distributed computing. The idea behind distributed computing is to take a scientific problem, and then share out the computations required to millions of computers. To test this theory, Dr. Anderson chose the SETI project, and set up SETI@home. Although the search for Extraterrestrial Intelligence was basically an "attention-getting gimic" (Gomes, 2006), it worked better then expected with almost a million users signing up and downloading the required client. Although there are now many other distributed computing projects available, almost akin to choosing which charity to donate to, many users are still loyal to the original SETI @home project. With their accumulated point system, earned by the number of computing hours donated to the project, users are unwilling to move to another project and lose the points they have earned. The current popularity of this project is shown by the 10,000+ members of the SETI @home facebook page (Facebook, 2011), which also demonstrates how many forms of online collaboration often cross paths. This resource describes the SETI @home project in easy to understand language making it a good introduction to the theory of distributed computing (or public-resource sharing) however some of the information seems to contradict that written on the SETI @home about page.
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    SETI@home has also inspired other collaborative shared computing projects. Most notably the Folding@home project conducted by Stanford University (Sony folding@Home 2008). The aim is to analyze proteins in hope of solving various diseases including Cancer. An interesting aspect of the project is its imbedding as a networked technology in the millions of PlayStations 3's around the world. As a user-setting, PlayStations left idle can shift processing resources to working through the protein work packets sent out by Stanford. Like the SETI Project, various teams compete for most work units analyzed. As an addition, Stanford are in the process of publishing peer reviewed results that stem from the completed work (Stanford 2009). Both this and the SETI Project hold technology as the central core of collaboration, but there is a human social factor playing an important role. Highlighted by the the team-play that gathers around the competition to see who is putting the most resources into completing work units. Sony folding@home (2008). The Folding@home™ Distributed Computing Project at Stanford University. Retrieved from http://www.scei.co.jp/folding/en/ Stanford (2009) Recent Research Papers from Folding@home. Retrieved from http://folding.stanford.edu/English/Papers
Kellie Ramm

SETI @home Website - 0 views

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    This resource is the home page for the SETI @home project. First launched in May 1999, as part of the SETI (Search for Extra-Terrestrial Intelligence) project, SETI@Home's goal is to "detect intelligent life outside Earth". In 1995, David Gedye had a thought that a virtual supercomputer could be developed by joining a large number of internet-connected computers, and from this he organised the SETI @home project to further explore this idea. This concept is now referred to as public-resource computing (University of California, 2011). The whole concept is based on the idea that there are millions of computers connected to the internet that all have downtime that could be utilised. By joining these computers together, a huge amount of computer processing power is derived, the more users involved, the more power that is available. SETI @home uses the computers to listen for unexpected radio noise. This is done by users downloading a small program (available from this website) to their computers. This program then downloads and analyses radio telescope data. The concept only works though if the user population is high, so the SETI @home website provides a number of user incentives to join the program including message boards, a team system, leaderboards based on a unique point system and general information and news about the project. Public-resource computing, is something that can now be taken further afield. It is a great use of online collaboration, particularly seeing the user input required is small, in return for the processing power gained. University of California. (2011). SETI@home. Retrieved from http://setiathome.berkeley.edu/index.php
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    This is a very interesting topic, because not enough value is placed on extra-terrestrial research in mainstream society. The belief that extra-terrestrial life could not possibly exist is an out-dated notion. How could life not exist beyond the earth's solar system, or even within it? Using available technology to search for what's out there is a step in the right direction, and may help to make people realise that there are other more important things than merely existing, and that humans are a mere speck in the universe's expanding dimensions. Earlier beliefs that were held by explorers or philosophers thought the world was flat or that the planets and sun rotated around the earth proves that humans don't have all the answers, and ignorance is not always bliss. Understanding how the universe operates, and finding out if other life forms exist is not only something nice to know, its important in the whole scope of human existence. Helmenstine, A. (2011). Searching for Extraterrestrial Life: Strategies and Science. Retrieved from http://chemistry.about.com/cs/astrochemistry/a/aa010404a.htm
Kellie Ramm

SETI@home - An Experiment in Public-Resource Computing - 0 views

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    This article talks about SETI @home's "design and implementation and discuss[es] its relevance to future distributed systems" (Anderson, Cobb, Korpela, Lebofsky, & Werthimer, 2002). The authors of this article are all staff of the University of California, Berkeley, in the space sciences laboratory. The University of California, Berkeley is the home of the SETI @home program. This resource gives a more in depth understanding of how the SETI @home program, in particular how public-resource computing works to aid in the processing of the data. All members of the SETI @home program are initially required to download the client program. This program collects a work unit from the main server, computes a result, returns this result to the main server, then gets another work unit. This article also shows the mathematics behind how this system gives so much computing power, but basically the more client programs computing the work units, the faster the data is processed. The stringent safety precautions are why this system is assured as so safe from malicious attacks from hackers and viruses. There is no communication at all between the various client machines, with each computer talking directly to the main server. As discussed within, for this to work public-resource computing projects need to attract users to their program, and keep them interested in remaining members. SETI @home uses word-of-mouth from its members, referral programs and mass-media news coverage to attract members. The client program can run as either a "GUI application or a screensaver", and runs during what is normally computer idling time which means that the impact on the user is minimal.
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    According to their 2002 poll the SETI @home user base is heavily dominated by males (93% of all users (Anderson et al., 2002)). This information can help them target market to their users. Some of the user benefits include the use of an online community where members can exchange ideas, and a competitive team/individual scoring system. Research is continuing into how to make this, and other forms, of public-resource computing more reliable and efficient in scientific calculations and discovery. Anderson, D., Cobb, J., Korpela, E., Lebofsky, M., & Werthimer, D. (2002). SETI@home: An Experiment in Public-Resource Computing. Communications of the ACM. 45(11), 56-61. doi: 10.1145/581571.581573
Kellie Ramm

BOINC: A System for Public-Resource Computing and Storage - 0 views

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    This resource is written by David P. Anderson from the University of California, Berkeley, the original founder of the SETI @home Project (Gomes, 2006) and discusses public-resource computing in more detail. It talks about the benefits of it over grid-computing and goes into more detail about the BOINC (Berkeley Open Infrastructure for Network Computing) Platform for public-resource computing. Public-resource computing (also known as "global computing", "distributed computing" or "peer-to-peer computing") uses available resources on personal computers to do "scientific supercomputing" (Anderson, 2004). It also has the benefit of "encouraging public awareness of current scientific research". SETI @home, one of the most well known forms of public-resource computing, attracts millions of users worldwide and can provide 70 TeraFLOPS of sustained processing, versus approximately 35 TeraFLOPS from the largest conventional supercomputer (Anderson, 2004). The goals of BOINC include: * Reduce the barriers of entry to public-resource computing. * Share resources among autonomous projects * Support diverse applications * Reward participants There are now a number of projects that use BOINC other then SETI@home. These include: * Predictor@home - studies protein behaviour * Folding @home - studies protein folding, misfolding, aggregation, and related diseases. * Climateprediction.net - quantifies and reduces uncertainties in long-term climate prediction based on computer simulations. * Einstein@home - detects certain types of gravitational waves, such as those from spinning neutron stars, that can be detected only by using highly selective filtering techniques that require extreme computing power.
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    By participating in these projects members can feel like they are playing a small part in helping with curing disease, solving global warming, and other world issues. Attracting participants is always a goal of these projects so it's important that these computing programs give no real inconvenience to them. BOINC has a general preference option that allows members to set a number of features including how and when their computer resources are used. This includes "whether BOINC can do work while mouse/keyboard input is active", hours of use, how much disk space can be used, and the network bandwidth. BOINC allows for many different projects to use its systems/setup allowing for smaller research projects to take advantage of the greater computing capabilities. This could potentially in the future help out an unknown research make a global scientific discovery. Anderson, D. (2004). BOINC: A System for Public-Resource Computing and Storage. Retrieved from http://portal.acm.org/citation.cfm?id=1032646.1033223 Gomes, L. (2006). How Many Computers Does It Take to Make Contact with E.T.s? Retrieved from http://online.wsj.com/public/article/SB115145653496392561-3YTEjOQhd0ZilADHfEf8hoK4BhA_20070628.html?mod=blogs
Amy B

Website helps to make dreams come true - 0 views

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    ABC LATELINE Michael Atkin Byline: "Australian website Pozible is helping to connect generous donors with needy projects, but there are concerns about how the website operates." The article introduces crowd-funding as an 'innovation of the internet age', bringing together donors and projects in need of funding, using an environmental group called Green Way Up as an example project, and a website called Pozible as an example of a crowd-funding resource. As an introduction to crowd-funding it presents Green Way Up as being both environmentally and socially conscious, as well as a good example of a crowd-funded project worth attention: Bob Miles and Chuck Anderson want to travel around the world on bio-fuel converted from recycled fats and oils obtained, in one case, from the waste of a chicken shop. However, Green Way Up may not have had such a start toward achieving this venture if not for Pozible; a crowd-funding resource whose Co-founder, Rich Chen, created the site 'because he was sick of hearing about exciting projects which failed to go ahead because they lacked money' (Atkin, 2011). Though it presents a hopeful opportunity to projects and financial benefactors alike, the article turns critical of the website's operations, suggesting Pozible may be 'violating the Corporations Act by raising money and offering rewards without issuing a prospectus' (Atkin, 2011).
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    Jennifer McKay, Professor at the University of South Australia is also concerned that Pozible infringes upon consumer protection laws and security laws, but when asked by Lateline, the Australian Securities and Investment Commission said they were 'considering whether crowd-funding poses any regulatory concerns' (Atkin, 2011). Green Way Up is presented as an exception rather than a rule for projects seeking crowd-sourced funding; '[p]rojects only receive the money if they reach their funding target within 90 days and currently two-thirds fail' (Atkin, 2011). Built upon and relying heavily on trust, the article concludes there is potential risk for all involved. Atkin, M. (2011). Website helps to make dreams come true. Lateline. Retrieved from http://www.abc.net.au/lateline/content/2011/s3180494.htm.
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    SETI@home and the various other projects that use BOINC rely on public contributions to achieve their computer processing goals. In a similar vein, the website Pozible.com.au also relies on public response to assist what would otherwise be unheard of projects. Pozible is a website that uses "crowd-funding" to get its donations. "Crowd-funding is an innovation of the internet age which links generous donors with needy projects" (ABC, 2011). In the example provided by this resource, the needy case is an environmental group called Green Way Up who want to fund an expedition to Norway using only bio-fuel. First shown on ABC's Lateline on the 1st April 2011, this interview discusses numerous aspects of Pozible. It talks through the set-up process, talks to a donator, and even questions the administration process from an ASIC/ACCC point of view. Not only does this website help otherwise unknown projects get up off the ground, it also helps connect them to "lounge-chair activists" looking to donate to causes they believe in. There are still a few problems with the donation process. Projects are required to generate 100% of their goal amount within 90 days to receive the money, meaning that currently only 1/3 of projects achieve this goal. There is also no formal follow-up process to ensure that the projects do what they have promised. On a positive note however, if a project fails to meet the requested total, no money changes hands. Donations work more on a pledge system, and even Pozible makes no profit from the projects, unless this total is met(Pozible.com, 2010). Projects like BOINC and Pozible are innovative ways of using current computer/internet usage to get public interest and participation in what could otherwise be undiscovered projects that could have positive implications in the future. ABC. (2011). Website Helps To Make Dreams Come True. Retrieved from http://www.abc.net.au/lateline/content/2011/s3180494.htm Pozible.com. (20
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