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Howard Rheingold's Library tagged social_networks   View Popular

30 Nov 09

Twitter and the Global Brain - Google Docs

The prevailing model for many years of how synapses between neurons in the brain are altered during learning has been Hebbian learning, which can be summarized as "neurons that fire together, wire together". In other words, in two neurons fire at the same time, the connection(s) between them will strengthened.



But recent evidence in neuroscience shows the truth is actually an interested twist on this idea - a twist that could have important implications as a model of how global consciousness could emerge from real-time social media like Twitter.



In reality, synapses are modified according to a rule called Spike Time Dependent Plasticity (STDP). In a nutshell, STDP says that if two neurons fire (= spike) in rapid succession, the connection from the one that fires first to the one that fires second will be strengthened.



In other words, if neuron A reliably fires shortly before neuron B, the connection from A to B will get stronger, so that next time when neuron A fires, neuron B will be more likely to fire too. And the opposite holds as well. In this example, since the firing of neuron B lags behind neuron A, the strength of the connection in that direction (from B to A), will be weakened. You could think of it as the neural equivalent of the old saying 'the early bird catches the worm' - a neuron that fires first gains increasing influence on its downstream neighbors.



STDP is a simple idea, but it has been shown to be a surprisingly powerful way that the brain uses for rapid pattern recognition and classification [1][2]. It turns out that using STDP, neurons naturally learn to specialize in detecting certain patterns in their inputs, even in the presence of lots of noise.



So what in the world does this have to do with social networks? There is an intriguing analogy between networks of neurons operating by the STDP rule and the emerging structure and functioning of real-time social networks like Twitter.

docs.google.com/Doc - Preview

twitter social_networks neuroplasticity collective_intelligence

24 Nov 09

EtherPad: conf-budtheteacher-readingsocialnetworks

For this activity, we would like for you to take a step back from your role as a participant in some social networks and to take a moment to assume the role of ethnographer. Social networks are texts - let's take a look at them as such. Below is a list of several popular or niche social networking sites. Either log in using an existing account, create an account, or borrow Bud's account (Bud has an account on most of these), and take a tour through the networking site with the following list of questions present in mind.

You might wish to copy and paste this list of questions to wherever it is that you take digital notes and jot some thoughts down while you take your tour. Feel free to skip questions - the goal of this activity is not for you to fill out a worksheet, but to think about how the social networks and networking tools that we use shape the way that we use them. In addition, be mindful of how our students approach these sites, and how we might build our classroom networks to facilitate the bahaviors that we value, rather than using the tools that come along.

etherpad.com/eteacher-readingsocialnetworks - Preview

educational_technology social_networks

On Twitter and in the Workplace, It's Power to the Connectors - Rosabeth Moss Kanter - HarvardBusiness.org

"In the World According to Twitter, giving away access to information rewards the giver by building followers. The more followers, the more information comes to the giver to distribute, which in turn builds more followers. The process cannot be commanded or controlled; followers opt in and out as they choose. The results are transparent and purely quantitative; network size is all that matters. Networks of this sort are self-organizing and democratic but without any collective interaction.

The significance of Twitter is yet to be determined; it is a simple, impersonal, and transient application of technology. But very real network effects are a new source of power in and around organizations.

America in the 20th century was called a "society of organizations." Formal hierarchies with clear reporting relationships gave people their position and their power. In the 21st century, America is rapidly becoming a society of networks, even within organizations. Maintenance of organizations as structures is less important than assembling resources to get results, even if the assemblage itself is loose and perishable. "

blogs.harvardbusiness.org/...power-to-the-connectors.html - Preview

twitter networks social_networks

21 Nov 09

People Search | Find People | Spokeo

"Learn something new about your friends... GUARANTEED. Find People instantly through the best people search tool on the internet. Try it Free! You can also search for people and find hidden photos and videos.
Want to see something juicy? Spokeo searches deep within 48 major social networks to find truly mouth-watering news about friends and coworkers. "

www.spokeo.com - Preview

privacy social_networks

18 Nov 09

The Rise Of Networks, The End Of Process - /Message

"And some, a few, are trying to think through a new model for business, reconstructed around what we have learned in the open web, balanced with what we know about the conduct of business. A new hybrid, intentionally devised to keep the best of the old (or at least the parts that will still work) and fuse that with the new, social models that dominate the web revolution.

From a social viewpoint, the architecture of business seems all wrong. People aren't really designed to do one thing, like a cog in a watch. They have various relationships with other people, and through these relationships they have influence on the work going on all around them. They are not alone, like a moth in a bell jar. We are not alone, in our work. Even the most repetitive of work -- screwing bolts on an assembly line, or delivering the mail -- happens in the context of other people, and is made more valuable by their exertions.

Increasingly, people's work is being viewed as a shared aspect of social relations. Time is a shared space, where we cooperate toward shared ends.

One casualty of this large-scale shift in business doctrine may be the hallowed business process. The notion of a process -- a defined series of steps in the production of goods or the delivery of services -- subordinates individuals to the their roles in the process.

For decades, business planners have made a distinction between repetitive, lock-step processes, where very little variability is involved (think pharmacy), and more free-form, unstructured processes where a higher degree of variability is expected (think emergency room). Taking the abstraction of a process out of the world of chemistry, manufacturing, and logistics, and treating the people involved as so many chemicals, gears, or trucks seemed like a good idea in the past, but is not going to be workable, going forward.

We will have to devise a new, richer way to think about people's interactions -- via social networks -- and our connection to mechanical processes and devices."

www.stoweboyd.com/...tworks-the-end-of-process.html - Preview

networks social_media social_networks

16 Nov 09

Network Capital: An Expression of Social Capital in the Network Society

This article deals with an emerging type of social capital which is labeled as ‘network capital’. It is formed from collaborative practices emerging from e-enabled human networks. It is proposed that network capital is a specific type of social capital in

ci-journal.net/...317 - Preview

social_software social_capital social_networks networks

  • This
    article deals with an emerging type of social capital which is
    labeled as ‘network capital’. It is formed from
    collaborative practices emerging from e-enabled human networks. It is
    proposed that network capital is a specific type of social capital in
    the Network Society, and that it holds significant value for the
    advancement of human development around the world.
  • According
    to Amartya Sen, ‘human development’ refers to the
    expansion of choices (i.e. freedoms) for people to live better lives.
    This concept has universal application, so it is not only valid for
    under-developed nations (
  • 16 more annotations...
09 Nov 09

Social Wargaming: Now Looking For Teams «

"I’ve been collaborating since with web ecologist Alexy Khrabrov on using games as a way of creating these focused scenarios that people can experiment with. Beyond being fun, it’s also a way of gathering data around what works and what doesn’t in terms of shaping and influencing social structures online.

Think of it like computer security Capture The Flag, but for social engineering and social hacking.

The general idea is this: judges will specify a “battleground” of unknowing, target users (who aren’t aware a game is going on) that form a common pool competed over by all the participants. Groups of teams will then descend on them, trying to get these people to behave in a particular way or influence the overall shape of the social structure. We keep score. And then teams are ranked accordingly. The hope is that teams will mine data about the targets and try to develop a strategy based around available data about the social terrain of the situation."

brosephstalin.com/...argaming-now-looking-for-teams - Preview

social_media gaming2learn social_networks

Map your brand's twitter social networks - Eventbrite

"Learn how to build a map of the social network surrounding your brand, conference, product, or event.

This is a hands-on guide to creating social network maps from live twitter data.

- Create a visualization that reveals groups, communities and influential participants in the swarm of people mentioning keywords of interest to you.

- Create a visual web of the relationships among the people who mention these keywords when they follow, mention or reply to one another.

- Learn how to calculate key metrics using a free and open add-in for Excel 2007 (NodeXL) that can identify key contributors who play influential roles in your communities.

- Compare your maps to other workshop participants and to a growing gallery of maps of keywords related to conferences like Web2.0, Enterprise 2.0, 140conf, and others.

- Come with your own query terms and make a map during the workshop with our assistance."

smanalysistwitter.eventbrite.com - Preview

social_networks visualization twitter

05 Nov 09

The Valley of My Dreams: Why Silicon Valley Left Boston’s Route 128 In The Dust

"A young professor at UC-Berkeley, AnnaLee Saxenian, wrote a book in 1994 which answers this question. At a time when Boston still thought it was the powerhouse of the tech industry, Saxenian declared Boston the loser in the tech race and explained why it would only fall further behind. This book was titled Regional Advantage: Culture and Competition in Silicon Valley and Route 128. It kicked off a firestorm of criticism from the Boston elite. Saxenian also alienated friends at her alma mater, MIT.

She noted that Silicon Valley had an amazing dynamism about it. There were extensive professional networks, job hopping was the norm, information was exchanged openly, and the culture encouraged risk taking. The Silicon Valley ecosystem supported entrepreneurial experimentation and collective learning. In other words, Silicon Valley was a very open network—a giant social networking site working in analog before the concept of such a thing even existed."

www.techcrunch.com/...-bostons-route-128-in-the-dust - Preview

networks social_networks technology innovation

04 Nov 09

Social Isolation and New Technology | Pew Internet & American Life Project

"This Pew Internet Personal Networks and Community survey finds that Americans are not as isolated as has been previously reported. People’s use of the mobile phone and the internet is associated with larger and more diverse discussion networks. And, when we examine people’s full personal network – their strong and weak ties – internet use in general and use of social networking services such as Facebook in particular are associated with more diverse social networks."

www.pewinternet.org/...lation-and-New-Technology.aspx - Preview

social_networks sociology mobile_devices

02 Nov 09

ijurr.wpd


Computer networks are social networks. Social affordances of computer supported social networks--broader bandwidth, wireless portability, globalized connectivity, personalization--are fostering the movement from door-to-door and place-to-place communities to person-to-person and role-to-role communities. People connect in social networks rather than in communal groups. In-person and computer-mediated communication are integrated in communities characterized by personalized networking.
"

www.chass.utoronto.ca/...ijurr3a1.htm - Preview

social_networks sociology online_community networks

  • Abstract


    Computer networks
    are social networks. Social affordances of computer supported social networks--broader
    bandwidth, wireless portability, globalized connectivity, personalization--are
    fostering the movement from door-to-door and place-to-place communities to person-to-person
    and role-to-role communities. People connect in social networks rather than
    in communal groups. In-person and computer-mediated communication are integrated
    in communities characterized by personalized networking.


  • We find
    community in networks, not groups. Although people often view the world in terms
    of groups (Freeman 1992), they function in networks. In networked societies:
    boundaries are permeable, interactions are with diverse others, connections
    switch between multiple networks, and hierarchies can be flatter and recursive.
  • 50 more annotations...
01 Nov 09

Top Ten Best Visualization Tools for Social Media, Blogosphere, Internet & News | InventorSpot

"Visualization is a technique to graphically represent sets of data that makes it easier to read and understand. Tools for visualization exist in search, social networks, online communities, mobile apps and desktop applications.
"

inventorspot.com/...media_blogosphere_intern_34171 - Preview

visualization social_media social_networks

27 Oct 09

Birds of a Feather: Homophily in Social Networks - Annual Review of Sociology, 27(1):415 - Full Text

"Similarity breeds connection. This principle—the homophily principle—structures network ties of every type, including marriage, friendship, work, advice, support, information transfer, exchange, comembership, and other types of relationship. The result is that people's personal networks are homogeneous with regard to many sociodemographic, behavioral, and intrapersonal characteristics. Homophily limits people's social worlds in a way that has powerful implications for the information they receive, the attitudes they form, and the interactions they experience. Homophily in race and ethnicity creates the strongest divides in our personal environments, with age, religion, education, occupation, and gender following in roughly that order. Geographic propinquity, families, organizations, and isomorphic positions in social systems all create contexts in which homophilous relations form. Ties between nonsimilar individuals also dissolve at a higher rate, which sets the stage for the formation of niches (localized positions) within social space. We argue for more research on: (a) the basic ecological processes that link organizations, associations, cultural communities, social movements, and many other social forms; (b) the impact of multiplex ties on the patterns of homophily; and (c) the dynamics of network change over time through which networks and other social entities co-evolve."

arjournals.annualreviews.org/...annurev.soc.27.1.415 - Preview

social_networks networks

22 Oct 09

Coming to Google Labs: Social search results | The Social - CNET News

"SAN FRANCISCO--Google Vice President Marissa Mayer made a surprise announcement at the Web 2.0 Summit in San Francisco on Wednesday: "Social Search," a new Google Labs experiment that will bring in search results from a member's social-network contact circle.

It'll be launching as an opt-in project in the next few weeks. Then, you'll need to have a Google account and set up a Google Profile to fill in information about the social networks that you use. Google first launched Profiles about a year ago.

"What we've done here is inserted, on the bottom of the page, content written by people in your social network," Mayer said, adding that Google hopes this will "really improve the overall relevance, comprehensiveness, and quality" of search results. A search for a local restaurant, for example, could bring up your friends' Yelp reviews for the same establishment. A search for travel destinations could bring up a post from a friend's blog."

news.cnet.com/8301-13577_3-10380739-36.html - Preview

search social_media social_networks

20 Oct 09

Connected: The Surprising Power of Our Social Networks

"Renowned scientists Christakis and Fowler present compelling evidence for our profound influence on one another's tastes, health, wealth, happiness, beliefs, even weight, as they explain how social networks form and how they operate."

www.connectedthebook.com - Preview

networks social_networks

19 Oct 09

Explore Your Twitter Network with Mentionmap | Asterisq.com

"Asterisq just released Mentionmap, an exciting web app for exploring your Twitter network. Discover which people interact the most and what they're talking about. It's also a great way to find relevant people to follow."

asterisq.com/...witter-network-with-mentionmap - Preview

twitter networks visualization social_networks

16 Oct 09

Social Networks: Wherever You Go, There They Are

"The number of people accessing social networks on their mobile phones at least once a month in the U.S. has doubled since the beginning of the year, to 10 percent in the third quarter from 5 percent in the first quarter, according to Forrester Research, in line with stats Facebook released last month. The number of people who accessed that social networking site from their mobile phones tripled to 65 million, up from 20 million people back in December. The data also heralds what many people sense, that mobile phones are becoming an extension of the lives we lead on our personal computers.

“Mobile phones have the potential to become the hub of social computing activities and to be more than just a complement to the PC experience,” Forrester analyst Thomas Husson wrote in a recent blog post. “Mobile phones will increasingly become the glue that holds the social graph together, offering creative tools and immediacy, presence, location, and context when interacting with the real world.”"

gigaom.com/...wherever-you-go-there-they-are - Preview

mobile_devices social_networks mososo

apophenia: Twitter: "pointless babble" or peripheral awareness + social grooming?

"I vote that we stop dismissing Twitter just because the majority of people who are joining its ranks are there to be social. We like the fact that humans are social. It's good for society. And what they're doing online is fundamentally a mix of social grooming and maintaining peripheral social awareness. They want to know what the people around them are thinking and doing and feeling, even when co-presence isn't viable. They want to share their state of mind and status so that others who care about them feel connected. It's a back-and-forth that makes sense if only we didn't look down at it from outter space. Of course it looks alien. Walk into any typical social encounter between people you don't know and it's bound to look a wee bit alien, especially if those people are demographically different than you.

"

www.zephoria.org/...twitter_pointle.html - Preview

twitter social_software social_networks

14 Oct 09

Wiley InterScience :: JOURNALS :: Sociology Compass

"The media landscape has changed dramatically in recent decades, from one predominated by traditional mass communication formats to today's more personalized network environment. Mobile communication plays a central role in this transition, with adoption rates that surpass even those of the Internet. This essay argues that the widespread diffusion and use of mobile telephony is iconic of a shift toward a new 'personal communication society', evidenced by several key areas of social change, including symbolic meaning of the technology, new forms of coordination and social networking, personalization of public spaces, and the mobile youth culture. The conclusion speculates on future trends in the sociotechnological climate."

www3.interscience.wiley.com/...abstract - Preview

networks social_networks mobile_devices digital_natives media

13 Oct 09

AnalyzeThe.US — Analysis

"Employees of KBR (formerly Kellogg, Brown and Root) have been convicted of contractor fraud on numerous occasions. Although the employees themselves are blacklisted by the government – i.e. placed on the EPLS – there are no official links on record between these employees and KBR. This video uses both structured EPLS data and unstructured data from Department of Justice press releases to link excluded individuals to their employers.
"

www.analyzethe.us/analysis - Preview

visualization comm217 social_networks

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