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Networked Life

Networked Life

Michael Kearns

Professor of Computer and Information Science

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• Quizzes

• Introduction to Networks

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  • Quiz 1: What is a Network?

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    Due Date:	Mon 17 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 17 Sep 2012 11:59:00 PM PDT
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  • Quiz 2: The Erdos Number Project

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    Due Date:	Mon 17 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 17 Sep 2012 11:59:00 PM PDT
    # of Attempts:	0 / 2
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  Navigation and Contagion in Networks

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  • Quiz 3: Navigation in Social Networks

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    Due Date:	Mon 17 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 17 Sep 2012 11:59:00 PM PDT
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  • Quiz 4: Contagion in Social Networks

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    Due Date:	Mon 17 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 17 Sep 2012 11:59:00 PM PDT
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  How Do Real Networks Look?

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  • Quiz 5: I.Heavy-tailed Degree Distribution

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    Due Date:	Mon 24 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 24 Sep 2012 11:59:00 PM PDT
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  • Quiz 6: II.Small Diameter

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    Due Date:	Mon 24 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 24 Sep 2012 11:59:00 PM PDT
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  • Quiz 7: III.Clustering of Connectivity

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    Due Date:	Mon 24 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 24 Sep 2012 11:59:00 PM PDT
    # of Attempts:	0 / 2
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  Models of Network Formation

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  • Quiz 8: I.The Erdos Renyi Model

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    Due Date:	Mon 24 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 24 Sep 2012 11:59:00 PM PDT
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  • Quiz 9: II.Clustering Models

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    Due Date:	Mon 24 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 24 Sep 2012 11:59:00 PM PDT
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  • Quiz 10: III.Preferential Attachment

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    Due Date:	Mon 24 Sep 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 24 Sep 2012 11:59:00 PM PDT
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  Navigation Revisited, and the PageRank Algorithm

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  • Quiz 11: Navigation in Networks, Revisited.

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    Due Date:	Mon 1 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 1 Oct 2012 11:59:00 PM PDT
    # of Attempts:	0 / 2
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  • Quiz 12: Important Vertices and the PageRank Algorithm

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    Due Date:	Mon 1 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 1 Oct 2012 11:59:00 PM PDT
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  Rational Dynamics and Game Theory

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  • Quiz 13: Toward Rational Dynamics in Networks

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    Due Date:	Mon 1 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 1 Oct 2012 11:59:00 PM PDT
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  • Quiz 14: Basics of Game Theory

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    Due Date:	Mon 1 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 1 Oct 2012 11:59:00 PM PDT
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  Games on Networks

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  • Quiz 15: Preview

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    Due Date:	Mon 8 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 8 Oct 2012 11:59:00 PM PDT
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  • Quiz 16: Coloring and Consensus

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    Due Date:	Mon 8 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 8 Oct 2012 11:59:00 PM PDT
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  • Quiz 17: Biased Voting

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    Due Date:	Mon 8 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 8 Oct 2012 11:59:00 PM PDT
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  Trading in Networks

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  • Quiz 18: I.Model

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    Due Date:	Mon 15 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 15 Oct 2012 11:59:00 PM PDT
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  • Quiz 19: II.Network Structure and Equilibrium

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    Due Date:	Mon 15 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 15 Oct 2012 11:59:00 PM PDT
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  • Quiz 20: III.Behavioral Experiments

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    Due Date:	Mon 15 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 15 Oct 2012 11:59:00 PM PDT
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  Internet Games

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  • Quiz 21: I.Packet Routing

    Attempt QuizShow Previous Attempts

    Due Date:	Mon 22 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 22 Oct 2012 11:59:00 PM PDT
    # of Attempts:	0 / 2
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  • Quiz 22: II.Sponsored Search

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    Due Date:	Mon 22 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 22 Oct 2012 11:59:00 PM PDT
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  • Quiz 23: III. Other Economic Problems

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    Due Date:	Mon 22 Oct 2012 11:59:00 PM PDT
    Hard Deadline:	Mon 22 Oct 2012 11:59:00 PM PDT
    # of Attempts:	0 / 2
    Effective Score:	N/A
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• Video Lectures 
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  Video Lectures

  Overview

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  • Overview
    Video (MP4) for Overview

  Introduction to Networks

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  • Lecture 1: What is a Network? (Week 1)
    Slides for Lecture 1: What is a Network? (Week 1)

    Video (MP4) for Lecture 1: What is a Network? (Week 1)
  • Lecture 2: Erdos Number Project (Week 1)
    The Erdös Number Project for Lecture 2: Erdos Number Project (Week 1)

    Slides for Lecture 2: Erdos Number Project (Week 1)

    Video (MP4) for Lecture 2: Erdos Number Project (Week 1)

  Navigation and Contagion in Networks

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  • Lecture 3: Navigation in (Social) Networks (Week 1)
    Small-world Experiment for Lecture 3: Navigation in (Social) Networks (Week 1)

    Travers-Milgram for Lecture 3: Navigation in (Social) Networks (Week 1)

    Slides for Lecture 3: Navigation in (Social) Networks (Week 1)

    Video (MP4) for Lecture 3: Navigation in (Social) Networks (Week 1)
  • Lecture 4: Contagion in Networks (Week 1)
    Virus on a Network Demo for Lecture 4: Contagion in Networks (Week 1)

    Forest Fire Demo for Lecture 4: Contagion in Networks (Week 1)

    Slides for Lecture 4: Contagion in Networks (Week 1)

    Video (MP4) for Lecture 4: Contagion in Networks (Week 1)

  How Do Real Networks Look?

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  • Lecture 5: I.Heavy Tails (Week 2)
    Emergence of Scaling in Random Networks for Lecture 5: I.Heavy Tails (Week 2)

    Power laws, Pareto distributions and Zipf's law for Lecture 5: I.Heavy Tails (Week 2)

    Power Law for Lecture 5: I.Heavy Tails (Week 2)

    Slides for Lecture 5: I.Heavy Tails (Week 2)

    Video (MP4) for Lecture 5: I.Heavy Tails (Week 2)
  • Lecture 6: II.Small Diameter (Week 2)
    Slides for Lecture 6: II.Small Diameter (Week 2)

    Video (MP4) for Lecture 6: II.Small Diameter (Week 2)
  • Lecture 7: III.Clustering of Connectivity (Week 2)
    Clustering Coefficient for Lecture 7: III.Clustering of Connectivity (Week 2)

    Slides for Lecture 7: III.Clustering of Connectivity (Week 2)

    Video (MP4) for Lecture 7: III.Clustering of Connectivity (Week 2)

  Models of Network Formation

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  • Lecture 8: I.The Erdos Renyi Model (Week 2)
    Giant Component Demo for Lecture 8: I.The Erdos Renyi Model (Week 2)

    Slides for Lecture 8: I.The Erdos Renyi Model (Week 2)

    Video (MP4) for Lecture 8: I.The Erdos Renyi Model (Week 2)
  • Lecture 9: II.Clustering Models (Week 2)
    Small Worlds Demo for Lecture 9: II.Clustering Models (Week 2)

    Slides for Lecture 9: II.Clustering Models (Week 2)

    Video (MP4) for Lecture 9: II.Clustering Models (Week 2)
  • Lecture 10: III.Preferential Attachment (Week 2)
    Emergence of Scaling in Random Networks for Lecture 10: III.Preferential Attachment (Week 2)

    Preferential Attachment Demo for Lecture 10: III.Preferential Attachment (Week 2)

    Slides for Lecture 10: III.Preferential Attachment (Week 2)

    Video (MP4) for Lecture 10: III.Preferential Attachment (Week 2)

  Navigation Revisited, and the PageRank Algorithm

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  • Lecture 11: Navigation in Networks, Revisited. (Week 3)
    The scaling laws of human travel for Lecture 11: Navigation in Networks, Revisited. (Week 3)

    The Small-World Phenomenon: An Algorithmic Perspective for Lecture 11: Navigation in Networks, Revisited. (Week 3)

    Navigation in a small world for Lecture 11: Navigation in Networks, Revisited. (Week 3)

    Slides for Lecture 11: Navigation in Networks, Revisited. (Week 3)

    Video (MP4) for Lecture 11: Navigation in Networks, Revisited. (Week 3)
  • Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)
    How Google’s Algorithm Rules the Web for Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)

    PageRank Calculator for Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)

    PageRank for Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)

    Bringing Order to the Web for Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)

    Slides for Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)

    Video (MP4) for Lecture 12: Important Vertices and the PageRank Algorithm (Week 3)

  Rational Dynamics and Game Theory

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  • Lecture 13: Toward Rational Dynamics in Networks (Week 3)
    Segregation for Lecture 13: Toward Rational Dynamics in Networks (Week 3)

    Slides for Lecture 13: Toward Rational Dynamics in Networks (Week 3)

    Video (MP4) for Lecture 13: Toward Rational Dynamics in Networks (Week 3)
  • Lecture 14: Basics of Game Theory (Week 3)
    Nash Equilibrium for Lecture 14: Basics of Game Theory (Week 3)

    Game Theory for Lecture 14: Basics of Game Theory (Week 3)

    Slides for Lecture 14: Basics of Game Theory (Week 3)

    Video (MP4) for Lecture 14: Basics of Game Theory (Week 3)

  Games on Networks

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  • Lecture 15: Preview (Week 4)
    Segregation for Lecture 15: Preview (Week 4)

    Slides for Lecture 15: Preview (Week 4)

    Video (MP4) for Lecture 15: Preview (Week 4)
  • Lecture 16: Coloring and Consensus (Week 4)
    An Experimental Study of the Coloring Problem on Human Subject Networks for Lecture 16: Coloring and Consensus (Week 4)

    Behavioral dynamics and influence in networked coloring and consensus for Lecture 16: Coloring and Consensus (Week 4)

    Slides for Lecture 16: Coloring and Consensus (Week 4)

    Video (MP4) for Lecture 16: Coloring and Consensus (Week 4)
  • Lecture 17: Biased Voting (Week 4)
    Behavioral experiments on biased voting for Lecture 17: Biased Voting (Week 4)

    Slides for Lecture 17: Biased Voting (Week 4)

    Video (MP4) for Lecture 17: Biased Voting (Week 4)

  Trading in Networks

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  • Lecture 18: I.Model (Week 5)
    Economic Properties of Social Networks for Lecture 18: I.Model (Week 5)

    Slides for Lecture 18: I.Model (Week 5)

    Video (MP4) for Lecture 18: I.Model (Week 5)
  • Lecture 19: II.Network Structure and Equilibrium (Week 5)
    Economic Properties of Social Networks for Lecture 19: II.Network Structure and Equilibrium (Week 5)

    Slides for Lecture 19: II.Network Structure and Equilibrium (Week 5)

    Video (MP4) for Lecture 19: II.Network Structure and Equilibrium (Week 5)
  • Lecture 20: III.Behavioral Experiments (Week 5)
    Behavioral Experiments in Networked Trade for Lecture 20: III.Behavioral Experiments (Week 5)

    Slides for Lecture 20: III.Behavioral Experiments (Week 5)

    Video (MP4) for Lecture 20: III.Behavioral Experiments (Week 5)

  Internet Games

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  • Lecture 21: I.Packet Routing (Week 6)
    How Bad is Selfish Routing? for Lecture 21: I.Packet Routing (Week 6)

    Routing for Lecture 21: I.Packet Routing (Week 6)

    Slides for Lecture 21: I.Packet Routing (Week 6)

    Video (MP4) for Lecture 21: I.Packet Routing (Week 6)
  • Lecture 22: II.Sponsored Search (Week 6)
    Second Price Auction for Lecture 22: II.Sponsored Search (Week 6)

    Slides for Lecture 22: II.Sponsored Search (Week 6)

    Video (MP4) for Lecture 22: II.Sponsored Search (Week 6)
  • Lecture 23: III. Other Economic Problems (Week 6)
    Slides for Lecture 23: III. Other Economic Problems (Week 6)

    Video (MP4) for Lecture 23: III. Other Economic Problems (Week 6)

  Closing Remarks

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  • Closing Remarks
    Video
• Discussion Forums 
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  • Forums

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  Forums

  Sub-forums

  Sub-forum	Latest Activity
  General Discussion General discussion about the course, life and everything under the sun.	Grupo de Estudio en Español /... 35 seconds ago
  Assignments Specific questions regarding the assignments.	Friendship is symmetric? 47 minutes 42 seconds ago
  Study Groups Find friends and arrange meet ups!	Portuguese study group 4 minutes 4 seconds ago
  Technical Issues Submit any technical issues you have encountered.	Quiz 7 Question 3 1 hour 15 minutes ago

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  Grupo de Estudio en Español / Spanish Study Group (Facebook) Segundo Lorenzo Ortiz AquinoTagsGroupFacebookgrupoestudioespaolspanish	Fran Agüero 35 seconds ago	0	5	45
  Portuguese study group Joao DongaTagsStudyGroupFacebookportugues	Vinicius Ribeiro 4 minutes ago	3	7	61
  Introductions, tell everyone something about yourself. Joshua BurkeTagscommunityintroductionmeetupstudygroup	Douglas J. Koch 5 minutes ago	11	142	1.6k
  Video duration in video titles Peter Varshavsky (Student)Tagsdurationinterfaceusersupportimprovement	Peter Varshavsky 9 minutes ago	1	1	2
  This is a course about Networking - so let's network! Alexander Hagan (Student)Tags	Iria Puyosa 10 minutes ago	6	15	191
  International Study Group on Facebook Praveen Kumar Chintakayala (Student)TagsInternationalStudyGroupFacebook	Cloyd London 12 minutes ago	5	6	209
  Singapore Study Group Anonymous Tags	Shen Ting Ang 22 minutes ago	0	6	50
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  International Study Group on Google+ Ricardo CalilTagsInternationalStudynetworked_lifegooglestudy_grouplearnnetwork	Ricardo Calil 47 minutes ago	0	1	4
  Friendship is symmetric? Binesh Bannerjee (Student)Tagsquiz1	Christina Halliday 47 minutes ago	2	9	245
  Quiz 7 Anonymous Tagsclusteringcoefficientquiz7quiz7	Vlad Flamind 51 minutes ago	0	7	39
  Quizz 1 Question 9 Francisco Restivo (Student)Tagsquizz1diameter	Jan Staggenborg 56 minutes ago	3	3	68
  LECTURE-week 1 - 2.2 : how come average collaborators = 3.2 in Erdos number graph ? Nikunj BankaTags	Ivan Beà 59 minutes ago	1	2	13
  Explanations to wrong answers GRINIS InnaTags	Christina Halliday 59 minutes ago	4	4	111
  Russian-speaking study group Anonymous Tagsrussianstudy-group	Anonymous 1 hour ago	0	1	14
  Quiz 7 Question 3 Szymon Adamala (Student)Tags	Jan Staggenborg 1 hour ago	1	2	22
  Quizz 6 - What is circle size?? Vlad FlamindTagsQuizzdiameterformulawrong	Vlad Flamind 1 hour ago	1	13	138
  Skype international study group JenniferTags	Umer Nisar 1 hour ago	2	20	223
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  comic sans, really? Ivan BeàTagscomicsanstypography	Andrew S Chen 2 hours ago	-8	4	270
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  Problems with demos in Lecture 4: Contagion in Networks Jorge Chan-LauTags	Pedro Daniel Anastácio Luis 3 hours ago	0	2	17

• Basic Course Information
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• Course Wiki

Reminders

Upcoming Homeworks

• There are no upcoming homeworks.

Upcoming Quizzes

• Quiz 1: What is a Network?
  Due: Mon 17 Sep 2012 11:59:00 PM PDT
• Quiz 2: The Erdos Number Project
  Due: Mon 17 Sep 2012 11:59:00 PM PDT
• Quiz 3: Navigation in Social Networks
  Due: Mon 17 Sep 2012 11:59:00 PM PDT
• Quiz 4: Contagion in Social Networks
  Due: Mon 17 Sep 2012 11:59:00 PM PDT
• Quiz 5: I.Heavy-tailed Degree Distribution
  Due: Mon 24 Sep 2012 11:59:00 PM PDT
• Quiz 6: II.Small Diameter
  Due: Mon 24 Sep 2012 11:59:00 PM PDT
• Quiz 7: III.Clustering of Connectivity
  Due: Mon 24 Sep 2012 11:59:00 PM PDT
• Quiz 8: I.The Erdos Renyi Model
  Due: Mon 24 Sep 2012 11:59:00 PM PDT
• Quiz 9: II.Clustering Models
  Due: Mon 24 Sep 2012 11:59:00 PM PDT
• Quiz 10: III.Preferential Attachment
  Due: Mon 24 Sep 2012 11:59:00 PM PDT

Upcoming Assignments

• There are no upcoming assignments.

Upcoming Assignments

• There are no upcoming assignments.

New Lectures

• There are no new lectures.

Announcements

Welcome to Networked Life!

This announcement provides some important basic course information. Please read it carefully and in its entirety.

* There are no formal prerequisites for this course, and it is expected that students from a wide range of backgrounds will be able to succeed.

* The course duration is 6 weeks (the schedule is specified under "Video Lectures"), but this is only the minimum recommended pace. More precisely, ALL of the videos and quizzes for the entire course are already available from the start, and you are free to watch and take them as fast as you like and are able to. The quiz deadlines, which fall on the week of the corresponding lectures, follow the 6-week pace. In other words, you must complete the course within the allotted 6 weeks, but you are free to go faster if you prefer. It is anticipated that the 6-week pace will be quite manageable for students with a wide range of backgrounds and schedules.

* There are no homework or other assignments for the course, only the quizzes, each of which corresponds to a specific lecture. The quiz corresponding to a given lecture has the same numerical index as the lecture. For the most part, quizzes are quite short, and test basic attention and understanding of the key points in the corresponding lecture.

* You are free to retake each quiz once. The maximum of your 2 scores will be your final score for that quiz.

* Your overall course score will be the simple average of the individual quizzes. Certifications will be awarded for course scores exceeding some minimum threshold (to be determined at a later time).

* You will notice under "Video Lectures" that, in addition to PDF versions of the slides for each lecture, there may be links to supplemental material for that lecture. Often these links are to demos or articles that were directly discussed in the corresponding lecture; sometimes they are to relevant additional materials, like Wikipedia pages. In order to get the most out of the course, you are strongly encouraged to take the time to peruse this additional material, read the full source articles, etc.

I hope you enjoy the course!

Prof. Michael Kearns
University of Pennsylvania

Fri 7 Sep 2012 5:39:00 AM PDT