Lecture 21: 29th November 2019 Flashcards
Privacy and social networks continued
What is an identity element?
Pieces of information about subjects, such as people, which have the potential to profile and uniquely identify them.
What are the most important identity elements to keep secret?
Drivers licence number, national insurance(UK)/social security(US) number, and credit card number.
What identity elements are can identify ~ 60% of US voters?
Sex, current ZIP code, and DOB.
How many friends are required on social media sites in order to identify you?
8
What is Febelfin?
A Belgian regulator of the financial sector and banking.
What did Febelfin’s PSA demonstrate?
That using freely available tools online can collate information about people detailed and sensitive enough to seem supernatural.
What were some criticisms of social networks raised by Ishbel in this lecture?
replace the need for in-person interactions, so may make people worse at them; may be addictive.
What is SNA?
SNA = Social Network Analysis = the process of gathering, investigating, and assessing data from social networks and social media platforms and trying to understand them in terms of relationships.
What is group cohesion?
The strength of bonds between individuals in groups.
What is a clique?
A total (completely adjacent - connected) group of nodes on a social network graph. They will have shared views. Cliques on social media have shared views, beliefs, or opinions. Think echo chamber. Note if you can monitor one, since all connected, you can monitor them all.
Where in cliques are people most happy?
Those at the centre of them, with a reach of 3 degrees of freedom
What is a cluster?
A collection of individuals with dense friendship patterns internally and sparse friendships externally.
Does unhappiness cluster? Why might this be the case?
Yes. Maybe because they are in mental health groups and echo off each other, or have similar life experiences making their views and making them unhappy, have the same interests (e.g. emo music).
What is Metcalfe’s law?
The monetary value of a network is directly proportional to the square of the size of the network (no of nodes in it).
What were the findings of Correa et al?
- in general, extroverts, the less emotionally stable, socially anxious and lonely people, more neurotic people, and more affective people and those more open to new experiences use social media significantly more
- emotionally unstable men used it significantly more than emotionally stable men but the same is not true for emotionally unstable women
- lonely and socially anxious people use social media to try their real-world problem of being lonely
- women place more value on connections and community than men who want to seem great themselves
