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Annotation of /trunk/R/trunk/ChangeLog

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Revision 27 - (view) (download)

1 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * src/: Various splits can now be easily created for the
4 :     Reuters21578 data set.
5 :    
6 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
7 :    
8 :     * Updated documentation
9 :    
10 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
11 :    
12 :     * Wrote R documentation for some classes and methods.
13 :    
14 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
15 :    
16 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
17 :     files. See the questionnaire data/Umfrage.csv for such an example.
18 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
19 : feinerer 22
20 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
21 :     matrix is now possible.
22 :    
23 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
24 :    
25 :     * R/textdoccol.R: One can build term-document matrices if
26 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
27 :     document collection with it.
28 :    
29 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
30 :    
31 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
32 :    
33 :     * R/textdoccol.R: We now can read in a whole XML file with several
34 :     news items.
35 :    
36 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
37 :    
38 :     * R/textdoccol.R: Set up an S4 class for a collection of text
39 :     documents. A first attempt to read in XML input (like the RCV1
40 :     set) was made.
41 :    
42 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
43 :     some accessor functions.
44 :    
45 :     * data/newsitem.xml: Added this XML file for testing purposes. It
46 :     contains a single news item from the Reuters Corpus Volume 1
47 :     (RCV1) XML set.
48 :    
49 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
50 :    
51 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
52 :     textmatrix as k-means clustering provided by R (kmeans) now works on
53 :     this textmatrix. The result is a k-means text clustering with a
54 :     similarity measure based upon word frequences.
55 :    
56 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
57 :    
58 :     * R/textmatrix.R: Adapted the preprocessing code from the R
59 :     package "lsa" written by Fridolin Wild to build a document text matrix.
60 :    
61 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
62 :    
63 :     * Set up the R Text Mining Package infrastructure.

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