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