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Meme map of web 2.0
- The web as platform
- Services not packages
- Perpetual Beta
- decentralization
- collaboration
- user generated content
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adaptive path
- Remixability
- emergent system
- co-creation
- decentralization
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Taxonomy vs. folksonomy
- Defined vocabulary vs Personal vocabulary
- Meaning per the author vs Meaning to the reader
- Top‐down vs Bottom‐up
- Central control vs Democratic creation
- Restrictive vs Expansive
- Navigation vs Discovery
- Accurate vs Good enough
- Structure vs Messy
- Not emergent vs Emergent by nature
- Solid foundation vs Slow to emerge
Efficiency vs Difficult Findability
Resource intensive vs Relativelyinexpensive
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Advantages and disadvantages of folksonomy
- Simple to learn
- Easy to tag any
- Relevance
- Lower cost of categorization
- Open ended
Disadvantages
- Errors – misspellings, single words or bad compounds, singleuse or idiosyncratic use
- Issues of scale – popular tags already showing a million hits
- Polysemy
- Synonyms
- Plural vs Singular
- Acronyms
- No structure, no conceptual relationships
- imprecise, ambiguous
- Limited applicability – non‐technical or nonspecialist domains
- Most people can’t tag very well – learned skill
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Differences between social media and traditional media
- Passive audience vs Active audience
One to many vs Many-to-many
- Require resources to broadcast vs Inexpensive and accessible tool
- Requires specialized skills and training vs Anyone can operate the means of production
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Ingredients of social media
- participation
- democratization
transparency
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The various types of intelligence from user generated content (implicit, explicit and derived intelligence)
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Blogosphere, mainstream media vs blog, permalink
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twitter
- Provide real time information
- Real‐time global bullhorn
- Government officials communicate and share
The Power of Simplicity
Hash Tags
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Know the subject matter of the blogs/magazine: www.huffingtonpost.com, boingboing.net/, http://gawker.com, http://gizmodo.com
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Six degrees of separation
- Everyone or everything is six of fewer steps away from any other person in the world. So that a chain of " a friend of a friend" statements can be made to connect any two people in a maximum of six steps.
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online social network vs. offline network
- offline : multiple groups of friends with whom we havedifferent relationship
online : A bucket of friends
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know what Dunbar number means
- Human beings can hold onlyabout 150 meaningfulrelationships in their heads.
Informally, it is the number ofpeople you wouldn’t feelembarrassed about joining ifyou happened to find them at the bar of an airport transitlounge at 3am
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Strength of relationship
- amount of time
- reciprocity (mutuality of services)
- emotional intensity
- intimacy (mutual confiding)
- Strong Ties : family
- weak Ties : Real value of collaboration
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What is wiki
- style of website consisting of a simple syntaxused to compose and edit pages by multiple people who hasno programming skills
use simple formatting rules‐‐like word processing
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benefits of it
- can share ideas and collaborate
- can interact and use easily
- nothing is ever lost
changes can be tracked and who
- Relies on cooperation, checks and balances
- belief in sharing of ideas
- focus on communityagreement rather than on personal views
information management, filter spam*,disseminating the 'voice‘
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comparison of wiki with blog
- No one owns content vs A person owns their post
- Anyone can edit other people’s work vs Only author can edit their own work
- No specific organization (hyperlinks) vs Organized in reverse chron. order
- Perpetual work in progress vs Posts are permanent
Good for collaborative group work vs Good for disseminating info/startinga dialogue
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its core rules
- Neutral Point of View
- Verifiability
- No Original Research
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its winning formula
- equipotentiality
- probabilistic, parallelised
Result
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The spectrum of lightweight collaboration to heavyweight collaboration
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Comparison of software in terms of freedom to modify, free of charge etc. (table 2.1 of open source lecture)
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Well known open source software LAMP
- Linux – Operating System
- Apache –Web Server software
- MySQL – MySQL database
- PHP – PHP, Pearl, Python
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The Cathedral vs the Bazaar
- Hierarchical vs Decentralized
- Top Down vs Bottom up
- Formal vs Informal
- Closed vs Open
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Copyleft and how it applied to software (figure 2.1of open source lecture)
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The similarity between Wikipedia and open source (also the emergent system characteristics)
- encouraging communalinvolvement
- other could pick up the effort
Publish then Filter
- more ppl, less bugs
- Product incrementally better
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Open courseware
- free and openeducational resource for faculty, students, and selflearnersthroughout the world
- not a distance‐learning initiative
- can complement a distance‐learning initiative
- high‐quality learning materials
- for taking and fortransformation
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What are Mashups and it purpose
- implies easy, fast integration
- frequently using open Application ProgrammingInterfaces (APIs*) and data sources to produce resultsthat were not the original reason for producing the rawsource data
Purpose
- Content can be repurposed and remixed
- Combine data from multiple sources into a single unifiedview
- Enrich raw data with new information
- Provides information in a useful way that was not possibleor intended before
- Allow information to be viewed from different perspectives
Only Mashups createssomething new from theexisting information
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