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Annotation of /trunk/tm/ChangeLog

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Revision 25 - (view) (download)
Original Path: trunk/R/trunk/ChangeLog

1 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * Wrote R documentation for some classes and methods.
4 :    
5 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
6 :    
7 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
8 :     files. See the questionnaire data/Umfrage.csv for such an example.
9 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
10 : feinerer 22
11 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
12 :     matrix is now possible.
13 :    
14 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
15 :    
16 :     * R/textdoccol.R: One can build term-document matrices if
17 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
18 :     document collection with it.
19 :    
20 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
21 :    
22 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
23 :    
24 :     * R/textdoccol.R: We now can read in a whole XML file with several
25 :     news items.
26 :    
27 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
28 :    
29 :     * R/textdoccol.R: Set up an S4 class for a collection of text
30 :     documents. A first attempt to read in XML input (like the RCV1
31 :     set) was made.
32 :    
33 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
34 :     some accessor functions.
35 :    
36 :     * data/newsitem.xml: Added this XML file for testing purposes. It
37 :     contains a single news item from the Reuters Corpus Volume 1
38 :     (RCV1) XML set.
39 :    
40 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
41 :    
42 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
43 :     textmatrix as k-means clustering provided by R (kmeans) now works on
44 :     this textmatrix. The result is a k-means text clustering with a
45 :     similarity measure based upon word frequences.
46 :    
47 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
48 :    
49 :     * R/textmatrix.R: Adapted the preprocessing code from the R
50 :     package "lsa" written by Fridolin Wild to build a document text matrix.
51 :    
52 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
53 :    
54 :     * Set up the R Text Mining Package infrastructure.

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