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Annotation of /trunk/tm/ChangeLog

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Revision 26 - (view) (download)
Original Path: trunk/R/trunk/ChangeLog

1 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * Updated documentation
4 :    
5 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
6 :    
7 :     * Wrote R documentation for some classes and methods.
8 :    
9 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
10 :    
11 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
12 :     files. See the questionnaire data/Umfrage.csv for such an example.
13 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
14 : feinerer 22
15 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
16 :     matrix is now possible.
17 :    
18 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
19 :    
20 :     * R/textdoccol.R: One can build term-document matrices if
21 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
22 :     document collection with it.
23 :    
24 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
25 :    
26 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
27 :    
28 :     * R/textdoccol.R: We now can read in a whole XML file with several
29 :     news items.
30 :    
31 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
32 :    
33 :     * R/textdoccol.R: Set up an S4 class for a collection of text
34 :     documents. A first attempt to read in XML input (like the RCV1
35 :     set) was made.
36 :    
37 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
38 :     some accessor functions.
39 :    
40 :     * data/newsitem.xml: Added this XML file for testing purposes. It
41 :     contains a single news item from the Reuters Corpus Volume 1
42 :     (RCV1) XML set.
43 :    
44 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
45 :    
46 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
47 :     textmatrix as k-means clustering provided by R (kmeans) now works on
48 :     this textmatrix. The result is a k-means text clustering with a
49 :     similarity measure based upon word frequences.
50 :    
51 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
52 :    
53 :     * R/textmatrix.R: Adapted the preprocessing code from the R
54 :     package "lsa" written by Fridolin Wild to build a document text matrix.
55 :    
56 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
57 :    
58 :     * Set up the R Text Mining Package infrastructure.

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