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Annotation of /trunk/tm/ChangeLog

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Revision 21 - (view) (download)
Original Path: trunk/R/trunk/ChangeLog

1 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * Changed class interfaces in various files. Weighting of the text
4 :     matrix is now possible.
5 :    
6 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
7 :    
8 :     * R/textdoccol.R: One can build term-document matrices if
9 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
10 :     document collection with it.
11 :    
12 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
13 :    
14 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
15 :    
16 :     * R/textdoccol.R: We now can read in a whole XML file with several
17 :     news items.
18 :    
19 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
20 :    
21 :     * R/textdoccol.R: Set up an S4 class for a collection of text
22 :     documents. A first attempt to read in XML input (like the RCV1
23 :     set) was made.
24 :    
25 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
26 :     some accessor functions.
27 :    
28 :     * data/newsitem.xml: Added this XML file for testing purposes. It
29 :     contains a single news item from the Reuters Corpus Volume 1
30 :     (RCV1) XML set.
31 :    
32 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
33 :    
34 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
35 :     textmatrix as k-means clustering provided by R (kmeans) now works on
36 :     this textmatrix. The result is a k-means text clustering with a
37 :     similarity measure based upon word frequences.
38 :    
39 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
40 :    
41 :     * R/textmatrix.R: Adapted the preprocessing code from the R
42 :     package "lsa" written by Fridolin Wild to build a document text matrix.
43 :    
44 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
45 :    
46 :     * Set up the R Text Mining Package infrastructure.

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