Networks, Crowds, and Markets: Reasoning Quiz
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Questions and Answers

What is the main focus of Chapter 2 in the book?

  • Graph Theory and Social Networks (correct)
  • Strong and Weak Ties
  • Homophily and Affiliation
  • Networks in Their Surrounding Contexts

Which concept is associated with the idea of Triadic Closure?

  • Tie Strength and Network Structure in Large-Scale Data
  • Tracking Link Formation in On-Line Data
  • The Strength of Weak Ties (correct)
  • Closure, Structural Holes, and Social Capital

What is the theme of Chapter 3 of the book?

  • Mechanisms Underlying Homophily
  • Tie Strength, Social Media, and Passive Engagement
  • Advanced Material: Betweenness Measures and Graph Partitioning
  • Strong and Weak Ties (correct)

In the book, what does the term 'Homophily' refer to?

<p>Mechanisms Underlying Homophily: Selection and Affiliation (B)</p> Signup and view all the answers

What is discussed in Chapter 4 of the book?

<p>Networks in Their Surrounding Contexts (A)</p> Signup and view all the answers

Which section of the book involves Advanced Material on Betweenness Measures and Graph Partitioning?

<p>Strong and Weak Ties (B)</p> Signup and view all the answers

What are the two broad classes of graph structures mentioned in Chapter 1?

<p>Social networks and information networks (C)</p> Signup and view all the answers

What do nodes represent in social networks?

<p>People or groups of people (A)</p> Signup and view all the answers

What do edges typically represent in information networks?

<p>Logical connections like hyperlinks (A)</p> Signup and view all the answers

How did John Barnes describe graph theory according to the text?

<p>&quot;A terminological jungle&quot; (B)</p> Signup and view all the answers

What did the image in Figure 2.2 depict?

<p>A map of the Internet in December 1970 (A)</p> Signup and view all the answers

What was the analogy used by John Barnes to describe graph theory?

<p>&quot;A forest of possibilities&quot; (B)</p> Signup and view all the answers

What is a common outcome when individuals align their behavior with their immediate neighbors in a social network?

<p>Cascading effects throughout the network (D)</p> Signup and view all the answers

How does the adoption of a new behavior typically start in a social network based on the text?

<p>With a small set of initial adopters (A)</p> Signup and view all the answers

In what way can superior technology displace an inferior technology in a network structure?

<p>By making incremental progress from a specific network portion (D)</p> Signup and view all the answers

What can block the diffusion of technologies in a network structure according to the text?

<p>The boundary of a densely-connected cluster (A)</p> Signup and view all the answers

What type of community is resistant to outside influences in a network structure based on the text?

<p>A closed community with high internal linkage (D)</p> Signup and view all the answers

How does a new behavior spread through a network structure according to the text?

<p>Radially outward from initial adopters (C)</p> Signup and view all the answers

What is the length of a path defined as?

<p>The number of edges it contains (B)</p> Signup and view all the answers

How is distance between two nodes in a graph defined?

<p>As the length of the shortest path between them (B)</p> Signup and view all the answers

What is breadth-first search used for?

<p>Discovering distances to nodes layer by layer (C)</p> Signup and view all the answers

In transportation, why is knowing the length of a path important?

<p>It shows how many steps something has to travel through the network (C)</p> Signup and view all the answers

What does the concept of distance help determine in a graph?

<p>How close or far apart two nodes are from each other (A)</p> Signup and view all the answers

How do you define whether two nodes are close together or far apart in a graph?

<p>By finding the length of the shortest path between them (A)</p> Signup and view all the answers

What was a striking fact when the experiment was first discovered?

<p>The short paths (B)</p> Signup and view all the answers

Why have attempts to recreate the experiment been problematic?

<p>Lack of participation (B)</p> Signup and view all the answers

How did Milgram describe the 'six short steps' in his original paper?

<p>Six worlds apart (A)</p> Signup and view all the answers

What does the text suggest about the usefulness of reaching someone through a short chain of friends?

<p>It may not necessarily mean social closeness (A)</p> Signup and view all the answers

What crucial aspect has the experiment and its phenomena formed in our understanding of?

<p>Social networks (D)</p> Signup and view all the answers

What has been accepted in a broad sense since the initial experiment?

<p>Social networks tend to have very short paths between people (C)</p> Signup and view all the answers

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