Lecture 1: intro Flashcards

1
Q

defintion social network

A

defined as a set of nodes (social actors such as individuals, groups or organizations) an ties representing some relationship or absence of a relationship among the actors’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

ego-network

A

the ensemble of ego ( = focussing our attention on a single focal actor) and his alters (=the set of nodes that the ego has ties with) ties among these

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Actors can be connected via:

A
  1. similarities
  2. social relations
  3. interactions
  4. flows (of resources)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Ties characteristics:

A
  1. Binary (present or absent: friends or not friends)
  2. Valued (frequency, intensity or strength of ties)
  3. Directed (one-directional as in giving advice) or undirected (physically proximate)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

2 types of ties

A

State-type ties:

  • have continuity over time, open-ended persistence and
  • operationalize in terms of strength/intensity and duration (like kinship or role-based ties)

Event-type ties:

  • discrete and transitory nature can be counted over periods of time
  • operationalize in terms of frequency and occurrence (like interactions or transactions (giving adivce, sending a email))
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Realist persepective

A

there is a true network of relationships out there and our job as researchers is to discover it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

nominalist persepective

A

every network question that we as researchers ask generates it own network. This is more a social constructionist persepective. So for example think about your own network of friends. If I aks you today who are your friends, this might be different next week, although parts of it don’t change.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Strength of weak ties (theory from Granovetter)

A

The stronger the tie between two people, the more likely their social worlds will overlap (same ties with same third parties)
Bridging ties re potential sources of novel ideas (links a person to someone who isn’t conneted to other friends
Strong ties are unlikely to be the source of novel info, weak ties are!
- more about the oppurtunity bridging gives you

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Structural holes (theory by Burt)

A

concerned with ‘ego networks’ and the power of the person bridging the hole (ego).
A network with more bridges is likely to afford more novel info that one without. Network with more bridges is likely to receive more nonredundant info which can perform better/ being perceived as the source of new ideas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly