#acl Florian Bäurle:read,write Axel Lehmann:read,write Eugen Sawin:read,write Mirko Brodesser:read,write Jonas Sternisko:read,write  All:read

= Welcome to the Wiki of the course '''Information Retrieval''' in the winter term 2012/2013 =

The course is given by [[http://ad.informatik.uni-freiburg.de/staff/bast|Prof. Dr. Hannah Bast]] and assisted by [[http://ad.informatik.uni-freiburg.de/staff/baeurlef|Florian Bäurle]]. It takes place every ''Wednesday from 4:15pm until 5:45pm'', in seminar room ''00-010/14'' in building 101. The first lecture is on Wednesday, October 24, 2012 and the last lecture is on Wednesday, February 13, 2013. There will be no lecture on Wednesday, December 26, 2012 and Wednesday, January 2, 2013 (christmas break) and on TODO. That is 14 lectures altogether.

The tutors for this course are Mirko Brodesser (mirko.brodesser@gmail.com), Eugen Sawin (esawin@gmail.com) and Jonas Sternisko (js174@mars.uni-freiburg.de). The administrator of the supporting systems (Daphne, SVN, Forum, Jenkins) is [[http://ad.informatik.uni-freiburg.de/staff/lehmann|Axel Lehmann]].

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<h2 style="color:red">Maintenance</h2>
<p>All Daphne Services (SVN/Jenkins/...) will not be available for some time on Thursday 17. Mai and Friday 18. Mai. We apologize for any inconvenience.</p>
<h2 style="color:red">NO LECTURE TODAY, on Wednesday June 20, at 4:15pm ... Prof. Bast is sick.</h2>
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== Important Links ==

 * Here is the link to [[https://daphne.informatik.uni-freiburg.de/InformationRetrievalWS1213|Daphne]] (our course management system).
 * Here is the link to the [[https://daphne.informatik.uni-freiburg.de/forum/viewforum.php?f=48|Forum]] (for annoucements and questions).
 * Here is the Wiki page of a similar lecture I have given three years ago: [[http://ad-wiki.informatik.uni-freiburg.de/teaching/SearchEnginesWS0910|Search Engines, WS 2009/2010]].
 * Here is a Java Code Style Profile for Eclipse: [[attachment:Eclipse Java Code Style Profile]].
 * Here is a C++ Code Style Profile for Eclipse: [[attachment:Eclipse C++ Code Style Profile]].

== Lecture Slides, Video Recordings, Exercise Sheets, and Code ==

''Remark about the video recordings:'' we have prepared videos in different formats, in particular: ''.m4v'', ''.mp4'', and ''.wmv''. If you click on one of the links "Video recording" you get that format of which our script thinks that it best fits your device / operating system / browser. If you explicitly want a particular format, simply copy the link address and add the desired extension by hand.

 * Lecture 1, Wednesday, October 24, 2012 (Introduction, Organizational, Inverted Index): [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/get-video.php?file=lecture-1|Video recording]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/lecture-1.pdf|Slides]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/exercise-sheet-01.pdf|Exercise Sheet 1]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/lectures/lecture-01/|Code from the lecture + design suggestion for the exercise sheet]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/wikipedia-sentences.csv|Example collection (1.1M sentences from Wikipedia about scientists)]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/master-solutions/exercise-sheet-01/|Master Solutions 1]].
 * Lecture 2, Wednesday, October 31, 2012 (Vector Space Model, Ranking, Precision/Recall): [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/get-video.php?file=lecture-2|Video recording]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/lecture-2.pdf|Slides]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/exercise-sheet-02.pdf|Exercise Sheet 2]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/lectures/lecture-02/|Code design suggestion for the exercise sheet]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/master-solutions/exercise-sheet-02/|Master Solutions 2]].
 * Lecture 3, Wednesday, November 7, 2012 (List intersection: fancy algorithms + lower bounds): [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/get-video.php?file=lecture-3|Video recording]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/lecture-3.pdf|Slides]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/exercise-sheet-03.pdf|Exercise Sheet 3]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/lectures/lecture-03/|Code from the lecture]], [[InformationRetrievalWS1213/ResultsListIntersection|Table for your list intersection results]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/master-solutions/exercise-sheet-03/|Master Solutions 3]].
 * Lecture 4, Wednesday, November 14, 2012 (Compression and entropy): [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/get-video.php?file=lecture-4|Video recording]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/lecture-4.pdf|Slides]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/exercise-sheet-04.pdf|Exercise Sheet 4]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/master-solutions/exercise-sheet-04/exercise-sheet-04.pdf|Master Solutions 4]].
 * Lecture 5, Wednesday, November 21, 2012 (Prefix search, error-tolerant search): [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/get-video.php?file=lecture-5|Video recording]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/lecture-5.pdf|Slides]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/exercise-sheet-05.pdf|Exercise Sheet 5]], [[https://daphne.informatik.uni-freiburg.de/svn/InformationRetrievalWS1213/lectures/lecture-05/|Code design suggestion for the exercise sheet]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/wikipedia-sentences.vocabulary.txt|Vocabulary (291.846 words)]] and [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/query-words.txt|Queries (1.000 words)]] for your experiments, [[InformationRetrievalWS1213/ResultsApproximateMatching|Table for your approximate word matching results]].
 * Lecture 6, Wednesday, November 28, 2012 (Error-tolerant prefix search, web application): [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/lecture-6.pdf|Slides]], [[http://ad-teaching.informatik.uni-freiburg.de/InformationRetrievalWS1213/exercise-sheet-06.pdf|Exercise Sheet 6]] (still all preliminary).