Semester page for INF4820 - Autumn 2013

The survey organized by the students ("fagutvalget" / FUI) at the end of every term is our most important tool for assessing and improving the quality of the courses offered by the department. We hope as many as possible of you take the time to answer the questionnaire; more information at

Nov. 28, 2013 3:15 PM

As we mentioned yesterday, we've uploaded a sample exam to give you some idea of what to expect for your final exam.

We decided in the end to create a new sample exam, rather than provide you with last year's exam, to reduce confusion about possible off-topic questions. Everything on this sample would be a potential question for this year's exam.

Good luck!

Nov. 21, 2013 4:54 PM

One sharp-eyed student has pointed out the the labels on precision and recall have been switched in the pcfg-eval() function in our skeleton code. I have updated chart.lsp to fix the bug, and you can copy the updated version to your home directory if you want. It is not required though, and should make no difference to your discussion, except that which number is labelled precision or recall in your output may differ depending on which version of the code you have.

Nov. 15, 2013 3:55 PM

Just a quick clarification for question 1.1 that someone asked me about yesterday: the hint says you should find 6 lexical rules (rules with a word as the RHS) and 6 syntactic rules. This does *not* include the extra START -> S rule that you add. There really are 6 unique syntactic rules in those trees - count carefully! I have updated the exercise PDF to make this clearer.

Nov. 7, 2013 10:34 AM

The solution (code and theory) are now available for Exercise 3a. Simen will go through these in the group session today.

Nov. 4, 2013 9:00 AM