Social Network Analysis MittiCool Pressure cooker Espresso Coffee Maker Bicycle with Conservati on...
-
Upload
ashlie-snow -
Category
Documents
-
view
212 -
download
0
Transcript of Social Network Analysis MittiCool Pressure cooker Espresso Coffee Maker Bicycle with Conservati on...
Social Network Analysis
MittiCoolPressure cooker
Espresso Coffee Maker
Bicycle with
Conservation of Kinetic energy
Chintan Vinod Shinde
2Concept Map
*
*(Lin, 2002)
3
Why Social Network Analysis?
Understanding dynamics of information flow
Identifying important actors Leveraging the best out of existing
network› Faster and efficient information diffusion› Greater control over data flow
4Prof Anil Gupta’s FB network
5
Prof Anil Gupta’s FB network
Bridges
Pollinators
6
We are looking for….
Pollinators: Stars of the network› Not necessarily the most popular› A good pollinator has more number of
pollinators down stream› Many ways of identifying critical actors
Bridges: Important connections. › May not have a diverse sub-network, but
connect to other critical actors
7
Parameters for Pollinators
Number of outward connections: measured using the metric, out-degree.
Diversity: › A measure of the degree to which the actor can spread the data. › Measured using the betweenness centrality.
No of prominent actors downstream› Measured by eigen vector centrality
Depth: Depth is defined here to signify how much distance (in terms of degrees of separation) the information can flow thru an actor. › The smaller the closeness centrality the more isolated(or distant) from the network,
the actor is.› Can be measured by the negative value of the closeness centrality of the most
distant actor in the network.
Density: Dense network in one city
8
Espresso Coffee Maker Sharing chart
Pressure cooker
Espresso Coffee Maker
9
Ahmedabad
Varanasi Raipur
Mumbai
New Delhi
Pressure cooker
Espresso Coffee Maker
City wise information flow
10
Ashok kumar khadia
GTU Innovation CouncilJeetendra Jeet
Source- Vany Nagpal
Pressure cooker
Espresso Coffee Maker
Sharad PurohitAnil Sharma
Some important pollinators
11
12
Espresso Coffee Maker Sharing chart
Pressure cooker
Espresso Coffee Maker
13
Geospatial DiffusionMittiCool
14
Potential Outputs…
An algorithm which identifies each of the key elements in the network
Characteristics of key actors. Targeted Diffusion through identified
key actors