
Online Social Networks and Media 
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Administrative Course Code:Λ14
The
course covers different issues around different types of networks in life and
technology. We will study the theory behind the formation and properties of
such networks, processes on networks, algorithms that make use of the
network, and tools for analyzing them.
Course
Homework The course homework consists of
assignments, a presentation and a project. The final grade will be determined
25% by the assignments, 25% by the presentation, and 50% by the project.
·
21/2/2013 – Final Grades: You can
see your final grade for the course here. ·
11/2/2013 – Project Exam: The project exam
will take place on Friday 15/2, between 10 and 2. You can reserve a spot for
the exam on this link (one
per team). The spots will be given on a first come first serve basis. ·
4/2/2013 – Project Deadline Extension: The
deadline for the projects is extended to February 11, 5pm. You should submit your
project via email. The projects examination will be on February 13. No slides
are necessary. ·
16/1/2013 – Project Reports and Deadlines: The
deadline for submitting the projects is February 8. Personal project
presentations will be done on February 11 and 12. Some guidelines for how to
write the project report can be found here (in Greek). ·
24/12/2012 – Presentation Schedule: The
schedule of presentations is here. ·
21/12/2012 – Project Proposals: The deadline
for the project proposals or proposal modifications is today. Late project
proposals will have a penalty. ·
11/12/2012 – Project Assignments: You can see
the current project assignment here.
Please check the file to see if there is any mistake in the assignment, or if
your name appears in the file. If not yet decided on the project, please let
us know as soon as possible. Each team should arrange a meeting this week or
early next week to discuss their project, before submitting their two page
proposal. ·
6/12/2012 – Assignment 4: Assignment 4 is out.
The deadline is Wednesday December 19
in class. ·
28/11/2012 – Projects: The list with the
project topics is on the Homework page. ·
20/11/2012 – Supplementary material for Assignment 2.
Copying model error: For the supplementary material of Assignment
2, you should prepare some slides that present it. If there is time you may
need to present it, if not we will grade based on the material on the slides.
Regarding the Copying Model, thanks to one of your colleagues an error in the
presentation was discovered. Specifically, in the paper, α is the
probability that a node links to a random node, and 1α
the probability that it copies a
link. Therefore, the correct formula of the exponent is β = (1+α)/α. (Or you can keep the formula as
is, and switch the probabilities. Those working with the copying model should
take this into account. ·
14/11/2012 – Assignment 3: Assignment 3 is out.
The deadline is Wednesday November 28 in
class. ·
5/11/2012 – Assignment 2 – Clarification: For
the second assignment, you need to implement
yourselves the model that you picked. You should not use the
implementation of Gephi. Gephi
should only be used for visualization and measurements. ·
1/11/2012  Assignment 2: Assignment 2 and the
material from Lecture 4 are now available on the corresponding web pages ·
11/1/2012 – Deadline for Assignment 2: The
deadline for Assignment 2 is Wednesday
November 14, not next week. Details for the assignment, and slides from
this week’s lecture will be posted on the web page of the course today. ·
22/10/2012 – Powerlaw plots for Assignment 1:
You can read more about the different methods of plotting the distribution
and estimating the powerlaw exponent at: o
M. E. J. Newman, Power laws, Pareto
distributions and Zipf's law, Contemporary
Physics. ·
17/10/2012 – Assignment 1: The first assignment
is out, details on the Homework page. Due on Friday 26/10 in class. ·
17/10/2012 – Change of class time: Next class
will be on Friday 26/10, 15:0018:00 