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Revision 49 - (view) (download)
Original Path: trunk/R/textmin/ChangeLog

1 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
4 :     several transform and filter functions operating on text document
5 :     collections (alias text document databases).
6 :    
7 :     * R/aobjects.R: Adapted class structure with inheritance,
8 :     repositories and additional meta data. Loading files on demand is
9 :     now possible.
10 :    
11 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
12 :    
13 :     * R/: Some cosmetic cleanups.
14 :    
15 :     * inst/: Removed vignette on clustering. That and much more is now
16 :     described in the JSS paper on text mining. Based upon that
17 :     article an elaborated vignette will be incorporated in the future.
18 :    
19 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
20 :    
21 :     * R/: Updated generic S4 methods to comply with signature changes
22 :     in newer versions of R (> 2.3)
23 :    
24 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
25 :    
26 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
27 :    
28 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
29 :    
30 :     * R/textdoccol.R: Added RIS HTML input format.
31 :    
32 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
33 :    
34 :     * R/textdoccol.R: Removed bug that caused invalid text document
35 :     collections when handling many input files.
36 :    
37 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
38 :    
39 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
40 :     mechanism.
41 :    
42 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
43 :     ReutNews.rda
44 :    
45 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
46 :    
47 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
48 :    
49 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
50 :    
51 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
52 :     clustering facilities of this package.
53 :    
54 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
55 :    
56 :     * R/aobjects.R: Changed package document structure to avoid class
57 :     dependency problems.
58 :    
59 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
60 :    
61 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
62 :     data set.
63 :    
64 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
65 :     CMD check textmin" works without errors.
66 :    
67 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
68 :    
69 :     * src/: Various splits can now be easily created for the
70 :     Reuters21578 data set.
71 :    
72 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
73 :    
74 :     * Updated documentation
75 :    
76 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
77 :    
78 :     * Wrote R documentation for some classes and methods.
79 :    
80 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
81 :    
82 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
83 :     files. See the questionnaire data/Umfrage.csv for such an example.
84 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
85 : feinerer 22
86 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
87 :     matrix is now possible.
88 :    
89 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
90 :    
91 :     * R/textdoccol.R: One can build term-document matrices if
92 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
93 :     document collection with it.
94 :    
95 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
96 :    
97 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
98 :    
99 :     * R/textdoccol.R: We now can read in a whole XML file with several
100 :     news items.
101 :    
102 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
103 :    
104 :     * R/textdoccol.R: Set up an S4 class for a collection of text
105 :     documents. A first attempt to read in XML input (like the RCV1
106 :     set) was made.
107 :    
108 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
109 :     some accessor functions.
110 :    
111 :     * data/newsitem.xml: Added this XML file for testing purposes. It
112 :     contains a single news item from the Reuters Corpus Volume 1
113 :     (RCV1) XML set.
114 :    
115 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
116 :    
117 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
118 :     textmatrix as k-means clustering provided by R (kmeans) now works on
119 :     this textmatrix. The result is a k-means text clustering with a
120 :     similarity measure based upon word frequences.
121 :    
122 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
123 :    
124 :     * R/textmatrix.R: Adapted the preprocessing code from the R
125 :     package "lsa" written by Fridolin Wild to build a document text matrix.
126 :    
127 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
128 :    
129 :     * Set up the R Text Mining Package infrastructure.

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