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Diff of /trunk/tm/ChangeLog

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revision 715, Wed Mar 14 15:16:27 2007 UTC revision 770, Tue Jul 17 12:41:04 2007 UTC
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1    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
2    
3            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
4            Christian Buchta.
5    
6    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
7    
8            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
9    
10    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
11    
12            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
13    
14            * R/reader.R (readPDF): Added PDF reader.
15    
16    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
17    
18            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
19    
20            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
21    
22            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
23    
24            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
25    
26    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
27    
28            * R/distmeasure.R (dissimilarity): Replaced dists call from
29            package cba by new dist call from package proxy.
30    
31    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
32    
33            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
34    
35    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
36    
37            * R/termdocmatrix.R: require() uses the quietly option to suppress
38            loading messages.
39    
40    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
41    
42            * R/dictionary.R: Added dictionary support.
43    
44    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
45    
46            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
47            documents. This simplifies some functions, e.g., asPlain.
48    
49    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
50    
51            * inst/doc/tm.Rnw: Fixed some typos in vignette.
52    
53    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
54    
55            * R/textdoccol.R (replaceWords): Added method to replace a set of
56            words by a single word. Useful for synonyms.
57    
58    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
59    
60            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
61    
62    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
63    
64            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
65            vectors. Thanks to Ariel Maguyon for his error report.
66            (removeSparseTerms): New function to remove columns from a
67            term-document matrix exceeding a sparse factor.
68    
69    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
70    
71            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
72    
73    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
74    
75            * man/sFilter.Rd: Corrected documentation on statement format (use
76            '==' instead of '=').
77    
78    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
79    
80            * R/aobjects.R (StructuredTextDocument): Inherits from
81            TextDocument.
82    
83    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
84    
85            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
86            on sparse matrices as proposed by Martin Maechler.
87    
88    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
89    
90            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
91            \pkg{filehash} version makes them deprecated.
92    
93    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
94    
95            * R/termdocmatrix.R (textvector): Stemming is now performed before
96            erasing stopwords.
97            (weightMatrix): Adapted to handle sparse matrices.
98            (TermDocMatrix): Sparse matrix is now efficiently built by
99            direct stepwise insertion of row values into it.
100    
101    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
102    
103            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
104            due to ongoing problems. For our purposes the latter is as useful
105            as the replaced package.
106    
107    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
108    
109            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
110    
111            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
112    
113    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
114    
115            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
116            languages with available stopwords.
117    
118    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
119    
120            * inst/doc/tm.Rnw: Minor corrections in the vignette.
121    
122    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
123    
124            * DESCRIPTION: Update to version 0.2, since a lot of new features
125            have been integrated.
126    
127            * inst/stopwords: Updated existing stopwords and added stopwords
128            for various other languages.
129    
130    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
131    
132            * man/: Updated documentation.
133    
134            * Work/testDb.R: Script to test database stuff.
135    
136            * R/: Fixed various database related bugs. Seems to be rather
137            useable now, i.e., consider as alpha status for now.
138    
139    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
140    
141            * R/: Fixed some bugs related to database support.
142    
143    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
144    
145            * man/: Added a lot of examples to the manuals.
146    
147    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
148    
149            * man/: Updated parts of the documentation.
150    
151            * R/textdoccol.R (asPlain): Added conversion from newsgroup
152            documents to plain text documents.
153    
154    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
155    
156            * R/textdoccol.R: Finished experimental database support. Not yet
157            intensively tested.
158    
159            * R/source.R: Now each source has a default reader.
160    
161            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
162            class anymore.
163    
164            * R/plaintextdoc.R: Custom show method for plain text documents.
165    
166            * R/aobjects.R: Added a class for structured text documents.
167    
168            * R/reader.R: Replaced remaining \code{parser} occurrences with
169            \code{reader}.
170    
171            * R/textdoccol.R (summary): Indent tags.
172    
173            * R/textdoccol.R (removePunctuation): Transform method to remove
174            punctuation marks.
175    
176    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
177    
178            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
179            using prescindMeta().
180    
181    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
182    
183            * R/textdoccol.R: Improved database support.
184    
185    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
186    
187            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
188    
189            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
190            language code.
191    
192            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
193            into parserControl argument.
194    
195            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
196    
197  2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
198    
199          * Work/tmDataSetup.R: The datasets acq and crude can now be          * Work/tmDataSetup.R: The datasets acq and crude can now be

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