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Facebook and YoutubeTRANSCRIPT
CONCEPT MAP:FACEBOOK AND YOUTUBEFACEBOOK AND YOUTUBE
A RAGAVENDRAN
[P2ELT13001]
Facebook®
• Social Networking Website
• Allows you to create an online page to connect with friends, family, or make new friends with anyone anywherefriends with anyone anywhere
• You can share pictures, personal information, messages, videos, join groups and add applications.
Features
• Account Creation/Deletion
• Contact Importing
• Synchronizing
• Data Security• Data Security
• Application Development
• Social Plug-in
Account Creation/Deletion
• Registration requires name, email address, gender and date of birth
• Following registration,
– Fill out CAPTCHA– Fill out CAPTCHA
– Agree Terms of Use and the Privacy Policy
• Facebook wants the user to complete registration within 30-days
Contact Importing
• User can import contacts from a range of email service providers.
• User can send invitations to the imported contacts to become friends.contacts to become friends.
• User can remove the imported data.
• Addition to contacts, it has a powerful feature “People You May Know” – based on imported contacts.
Synchronizing
• Available for mobile platforms: iOS, Android, Windows Phone and Symbian
• Transmission of Contact Information
• Security of Transmitted Data• Security of Transmitted Data– Secure connection(https) to browse
• Contact Synchronisation vs. Find Friends– On “Sync Contacts”, contact information are not
visible
– On “Find Friends”, contact information are visible
Data Security
• Two broad sections:– Security of user communication– Facebook Corporate information security
• Security of user accounts– Detects suspicious activity on user accounts – Detects suspicious activity on user accounts
• Fill out a CAPTCHA/ SMS authorization code
• Opt-in features:– Secure browsing– Login notification– Login approval/two-factor authentication– Active sessions
App. Development
• Provides an application platform to allow third-party developers to build applications
• Application Access Control– Requests permission to gain access to user
informationinformation
• Before Authorization– Access country, locale and age of user
• Application Authorization– Uses tokens for subsequent request for information
• Access to user friend information
Social plug-in
• Allow owners of websites to use “Like” and “Comment” function
• Makes use of Cookies
• Use of Social Plug-in activity to target • Use of Social Plug-in activity to target advertising
Akamai URL Structure
• A representative example of the filenames given by Facebook to image files is:
• Five numeric components,
https://fbcdn-sphotos-a.akamaihd.net/hphotos-indhra4/387755_115906941856985_100003130400274_87779_1581190684_n.jpg
• Five numeric components, – Volume ID
– Facebook Object ID
– User ID
– Photo ID
– Pseudo-random No
http://en.wikipedia.org/wiki/Akamai_Technologies
• Volume ID– identifier for the physical Facebook server where the image is
located.
• Facebook object ID– unique identifier for the photo.
• User ID• User ID– user ID of the user who uploaded the photo.
• Photo ID– legacy photo ID.– If a Facebook object ID is provided, the Photo ID is ignored.
• Fifth number– pseudo-random number between zero and (2^31 - 2)
YouTube – Broadcast Yourself™
• Video-sharing website
• Owned by Google
• Requires registrations for tasks:– uploading videos,– uploading videos,
– viewing flagged videos,
– viewing flagged comments,
– liking videos,
– adding videos to playlists
– commenting on videos
Features
• Video technology– Playback
• Needs Adobe Flash Player plug-in• HTML5 Beta
– Uploading• Accepts formats such as, *.AVI, *.MKV, *.MP4, *.MOV, *.DivX, • Accepts formats such as, *.AVI, *.MKV, *.MP4, *.MOV, *.DivX,
*.FLV and so on
– Quality and codecs• Available in SQ, HQ and HD
• Content accessibility– Platforms
• Localization
Social Impact
• Videos uploaded in YouTube are rated• Impacts are measured by
– View count– Likes and Dislikes– Comments– Comments
• Channels make hype to the large group of viewers• Charts the popular videos based on its ranking
methodology• Earns revenue by advertising on the site through
Google AdSense
Policy
• Set of community guidelines to reduce abuse of its features.
• Prohibited materials includes– Content uploaded without the copyright’s – Content uploaded without the copyright’s
consents
– Hate speech
– Shock videos
– Videos of animal abuse
– Spam and predatory behaviour
From Wikipedia
Concept mapping is a technique for visualizing therelationships among different concepts.
Concept Mapping
A concept map is a diagram showing the relationshipsamong concepts. Concepts are connected with labeledarrows. The relationship between concepts is articulatedin linking phrases, e.g., "gives rise to", "results in", "isrequired by," or "contributes to".
http://en.wikipedia.org/wiki/Concept_map
Four major categories of concept maps
"Spider": Organized by placing the central theme or unifying factor in the center of the map. Outwardly radiating sub-themes surround the center of the map.
"Hierarchical": Presents information in a descending order of importance. The most important information is placed on the
Types of Concept Maps
http://classes.aces.uiuc.edu/ACES100/Mind/c-m2.html
"Flowchart": Organizes information in a linear format.
importance. The most important information is placed on the top. Distinguishing factors determine the placement of the information.
"Systems": Organizes information in a format which is similar to a flowchart with the addition of 'INPUTS' and 'OUTPUTS'.
Let’s RECAP with CONCEPT MAP