High School Dating
(Bearman, Moody, and Stovel, 2004)
(Image by Mark Newman)
Corporate E-Mail Communication
(Adamic and Adar, 2005)
Economics 2040 / Sociology 2090 / Computer Science 2850 / Information Science 2040
Cornell University, Fall 2022
A course on how the social, technological, and natural worlds are connected,
and how the study of networks sheds light on these connections.
Topics include: how opinions, fads, and political movements
spread through society; the robustness and fragility of food webs
and financial markets; and the technology, economics, and politics
of Web information and on-line communities.
The course is designed at the introductory undergraduate level
with no formal prerequisites; it satisfies the
Arts & Sciences Social and Behavioral Analysis (SBA) distribution
and the Engineering Liberal Studies (SBA group) distribution.
- Aanya Bhandari ab2526
- Ava Cohen ac2846
- Brandon Man bm557
- Caleb Chin ctc92
- Cameron Kull cak264
- Chang Chen cc992
- Claire Jiang cj337
- Daniel Schwartz dls422
- David Cai dcc247
- Gaveal Fan jf675
- Grace Xiao gx46
- Harold Bergner hab92
- Josh Feuerstein jtf82
- Kenneth Peng klp98
- Kianna Guo yg538
- Lucy Barsanti leb242
- Mary Kolbas mck86
- Megan Dinnegan med272
- Michela Meister mcm373
- Miles Ma hm387
- Nathan Maidi nm542
- Raquel Kanner rk747
- Rejoice Hu rh635
- Tairan Zhang tz352
- Teresa Tian st678
- Valeria Bodishtianu vb285
- We will be using the book Networks, Crowds, and Markets
(Cambridge University Press, 2010), which Professors Easley and Kleinberg
co-wrote while teaching this course in its first few years.
A complete draft is on-line at the
Web page for the book,
and the hardcopy version is for sale online and at the Campus Store.
- Over the past several years, we've offered an
on-line version of the course
through the edX platform. The materials from this course are now archived,
and you can access them by registering on-line at the edX site. Although you
can no longer take the edX course as a student,
by registering you get access to the videos and on-line exercises.
In the course this fall, this edX material will serve as a set of optional
resources that you may find helpful for alternate presentations as
well as a source of additional practice exercises.
Grades on the homework, blog posts, midterm,
and final will be weighted as follows:
- Homework: 40% [9 assignments; lowest one dropped]
- Homework must be submitted in PDF format using the
(Gradescope can also be accessed from the course Canvas site.
You should sign up on the gradescope site for CS 2850
even if you are taking it with a different course number.
If the site asks you for an entry code, it is K33R4K.)
- Midterm (in class, Monday Oct 3): 20%
- Final Exam: 30%
- Blog Posts: 10%
- We will be maintaining a
as part of the course, and posting to the blog will be part of the
Information about the blog can be found in the
blog guidelines handout.
- iClicker participation: 0% (score will be considered for
- We'll use clickers in lecture. You must use a clicker
from the iClicker system.
The process for registering an
iClicker is described in the
- Academic integrity guidelines require that you may only use your
own registered clicker during class.
Class Discussion on Ed
We will be using Ed as a discussion forum for the class. You can
access it through the course Canvas site (you should see a link
on the left side of the course home page, at the bottom).
You are expected to maintain the utmost level of academic integrity in the
course. Any violation of the code of academic integrity will be penalized
You are allowed to collaborate on the homework to the extent of formulating
ideas as a group. However, you must write up the solutions to each problem
set completely on your own, and understand what you are writing. You must
also list the names of everyone that you discussed the problem set with.
Collaboration is not allowed on the other parts of the coursework.
Finally, plagiarism deserves special mention here. Including
text from other sources in written assignments without quoting
it and providing a proper citation constitutes plagiarism, and it
is a serious form of academic misconduct. This includes cases in
which no full sentence has been copied from the original source,
but large amounts of text have been closely paraphrased without
proper attribution. To get a better sense for what is allowed, it
is highly recommended that you consult the
guidelines maintained by Cornell
on this topic. It is also worth noting that search engines
have made plagiarism much easier to detect. This is a very serious
issue; instances of plagiarism will very likely result in failing