Business Analytics and Emerging Trends - Social Network Anlaysis - Type of networks
9 important questions on Business Analytics and Emerging Trends - Social Network Anlaysis - Type of networks
How is a random network generation done?
- Network where links between nodes are randomly made.
- Start with n nodes, each pair of nodes has probability p to connect with each other and all nodes have approximately the same degree:
K
Why is a small world network relevant to study and what is the CC of this network?
- a group of people are closely related --> High CC
- Few people have far reaching connections --> low avg path length
How is a small world network generated?
- Start with a ring lattice of n nodes
- Each node connected to closest k neighbors
- Rewire edges: delete edges with probability p and create random edges such that number of links remain the same
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How are scale free networks generated?
- Power-law network (hub networks)
- Preferential attachment:
- Start with 1 node, add new node via link, which node will be linked in existing network depends on degree of node, rich get richer phenomenon
How are the degree distribution and adjacency matrix of the three network types?
- Random: degree distribution is approximately equally divided and adjacency matrix is random
- Small world: degree distribution approximately equally dvided and adjacency matrix more diagonal line with points
- Scale-free: degree distribution most nodes have few edges and a few nodes have a lot of edges and adjacency matrix horizontal line in top and vertical line in left
What are strong and weak ties?
- Strong ties: Close friends probably highly clustered
- Weak ties: distant friend, friend outside your main cluster
Why can a weak tie be stronger than a strong tie?
What are structural holes (Burt, 2004)?
- People conntected accross multiple groups
What are advantages of structural holes?
- Information advantages: informations across groups are more additive than overlapping
- Control advantages: Third-party opportunities, brokerage and entrepreneurship
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
