150 likes | 337 Views
Social Network Analysis. MittiCool. Pressure cooker Espresso Coffee Maker. Bicycle with Conservation of Kinetic energy. Chintan Vinod Shinde. *. *(Lin, 2002). Concept Map. Why Social Network Analysis?. Understanding dynamics of information flow Identifying important actors
E N D
Social Network Analysis MittiCool Pressure cooker Espresso Coffee Maker Bicycle with Conservation of Kinetic energy Chintan Vinod Shinde
* *(Lin, 2002) Concept Map
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
Prof Anil Gupta’s FB network Pollinators Bridges
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
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
Pressure cooker Espresso Coffee Maker Espresso Coffee Maker Sharing chart
Pressure cooker Espresso Coffee Maker Mumbai Ahmedabad Varanasi Raipur New Delhi City wise information flow
Pressure cooker Espresso Coffee Maker Source- Vany Nagpal Ashok kumar khadia GTU Innovation Council Sharad Purohit Anil Sharma Jeetendra Jeet Some important pollinators
Pressure cooker Espresso Coffee Maker Espresso Coffee Maker Sharing chart
MittiCool Geospatial Diffusion
Potential Outputs… An algorithm which identifies each of the key elements in the network Characteristics of key actors. Targeted Diffusion through identified key actors