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11_Social_Aspects - Coggle Diagram
11_Social_Aspects
Media Propagation in Online Social Networks
Video > text | image
integrated w/Video services
challenges
social networking
network traffic
resource provisioning
external video sites
Sharing Patterns
external video site
How often
initiate video sharing
further share
Propagation Structure
limited branching
frequently branching
Watching&Sharing Behaviors
streaming
quality
playback continuity
startup latency
dynamic
lose interest
storage
stable
async donwload
no need
playback quality
until watching
no interest
Coordinating Live Streaming and Online Storage (COOLS)
The Dilemma
Storage Nodes
provides info
Streaming Nodes
short startup latencies
Solution to Dilemma
streaming tree
storage tree
Representative Social Media Services
Social Media
Internet-based App
construct&exchange
user-generated contents
Key Factors
Collective intelligence
Rich connections
Services
User-Generated Content Sharing
UGC
text
music
picture
Video
large size
long playback duration
high bandwidth
YouTube
Online Social Networking
OSN
Internet-based platform
connect people
social relationship
Facebook
Twitter
User-Generated Content Sharing
Featues
Format & Meta-data
Format
Adobe Flash Video (.FLV)
H.263
H.264
Meta-data
Characteristics
Category
Length
Access Patterns
10% top videos --> 80% views
60% watched < 20% duration
10% watched again tomorrow
copyrighted --> most views
top videos --> sudden burst
viewing behaviours
video quality
social relations
Small-World
number of views
top related
clustering coefficient
characteristic path length
YouTube Partner's View
Insight Analytics
content deployment
user engagement
revenue ads
YouTube Partner Program
Copyright
refferal sources (last webpages)
Search
Enhancing UGCS
Proxy Caching
prefix caching
small-world
Storage in Content Distribution Networks (CDN)
parts
edge
core
partition
social relationship
+accessed together
-unbalanced partitions
user access patter
Peer-to-Peer Sharing
NetTube
mesh-based
Bi-layer Overlay
delay-aware scheduling
cluster-aware pre-fetching
