Graphical models

author: Zoubin Ghahramani, Department of Engineering, University of Cambridge
published: Aug. 25, 2007,   recorded: August 2007,   views: 95004


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Part 1 53:16
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Part 2 58:19
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Part 3 1:18:43
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Part 4 31:00
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Part 5 1:05:20
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Part 6 29:16


An introduction to directed and undirected probabilistic graphical models, including inference (belief propagation and the junction tree algorithm), parameter learning and structure learning, variational approximations, and approximate inference.
- Introduction to graphical models: (directed, undirected and factor graphs; conditional independence; d-separation; plate notation)
- Inference and propagation algorithms: (belief propagation; factor graph propagation; forward-backward and Kalman smoothing; the junction tree algorithm)
- Learning parameters and structure: maximum likelihood and Bayesian parameter learning for complete and incomplete data; EM; Dirichlet distributions; score-based structure learning; Bayesian structural EM; brief comments on causality and on learning undirected models)
- Approximate Inference: (Laplace approximation; BIC; variational Bayesian EM; variational message passing; VB for model selection)
- Bayesian information retrieval using sets of items: (Bayesian Sets; Applications)
- Foundations of Bayesian inference: (Cox Theorem; Dutch Book Theorem; Asymptotic consensus and certainty; choosing priors; limitations)

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Download slides icon Download slides: ghahramani_zoubin_lecture1.pdf (219.5 KB)

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Reviews and comments:

Comment1 Roman, August 28, 2007 at 5:08 p.m.:

Will there be a version in Window Media Format?

Comment2 Roman, August 28, 2007 at 6:24 p.m.:

Part 2 (file suffix 01) ends at about 32% (wmv). Do others have the same problem?

Comment3 davor (staff), August 28, 2007 at 8:33 p.m.:

I have checked all the parameters and asked students from CMU if they have troubles with this video, but they dont seem to have this problem. Have you checked your players settings?

Comment4 ss, September 6, 2007 at 2:58 a.m.:

Will the other parts of the tutorials be available soon?

Comment5 yiqun, September 13, 2007 at 7:24 p.m.:

zhoubin's talk is very nice! But the third part about learning the parameters and structures of directed graphical model is missing! Can this part of talk be available?

Comment6 Krishna, September 26, 2007 at 7:42 p.m.:

I am specifically looking for the part on learning the parameters and structures... Unfortunately this seems to be missing :(. Please let me know where I can find it!

Comment7 cuty, October 23, 2007 at 5:39 a.m.:

Great talk! I find it very useful.

Comment8 guest, April 28, 2008 at 2:52 a.m.:


i was wondering where the first part of lecture 3 is?, could you please upload that,..Thanks,

Comment9 amirhossein, May 25, 2008 at 2:01 a.m.:

Great comprehensive lecture.
Many thanks to prof. Ghahramani.

Comment10 davor (staff), August 8, 2008 at 3:54 p.m.:

Hello everyone, we have added a new version of part 3 and 4 so enjoy them.

Comment11 hassan, November 3, 2008 at 1:07 p.m.:

I'm can not to download video.
please help me ( please mail az link on download)
thank you

Comment12 rr, November 16, 2008 at 12:58 p.m.:


WMV version of part 2 stops around 30% into the lecture.

Comment13 rr, November 16, 2008 at 11:12 p.m.:

The flash version of lec 2 stops after about 9 minutes

Comment14 Sobhan, November 21, 2008 at 11:21 p.m.:

The third and forth lectures have problems in the middle.
I was proceeding along with the lectures sequence but the problem stopped me in the most challenging and informative part (learning the models)!
Can you please fix it.


Comment15 VG, February 5, 2009 at 8:59 a.m.:

Would you please to fix the lecture 3 problem. It stops just after 44 minutes. I really would appreciate if you could help us. Thanks.

Comment16 Sanghack Lee, March 1, 2009 at 4:28 a.m.:

I think you can solve the problem by launching a WMP instead of instead of using flash player

Comment17 Mike, May 19, 2009 at 11:14 p.m.:

In slide 15 (@45:06 min), example 3 says the path is blocked by D. Doesn't he mean B?

Comment18 Cyrill, June 30, 2009 at 1:12 p.m.:

Player (flash) blocks at 44:07. Any idea how to fix that?

Comment19 Cauchy, July 26, 2009 at 1:30 p.m.:

I find the same problem that I cannot watch whole part2 and the video stopped at 89%.

Comment20 jib, July 29, 2009 at 2:52 a.m.:

I cannot watch videos 1 and 4. An error messages popps up saying: "AJAX error: parsererror". Please fix it.

Comment21 Hamid, June 6, 2011 at 7:42 a.m.:

They haven't still fixed the problem with the flash version of the lecture number 3. It seems that there is nobody to read these comments!!!!

Comment22 Liangliang, June 28, 2011 at 4:26 a.m.:

Part 2 ends at about 18:41, please fix it, thanks.

Comment23 Amir, March 1, 2012 at 12:48 a.m.:

Hi, Part 3 pas a problem in the middle. Could you please fix it.

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