Comparision of desktop search software

Comparision of desktop search software

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Contents
[hide]

* 1 Feature comparison
* 2 Operating systems supported
* 3 Archive file types supported
* 4 Databases supported for storing indexed data
* 5 See also
* 6 External links
* 7 Notes and references

[edit] 1 Feature comparison
Beagle[1] Tracker[2][3] Recoll[4] Strigi Jindex
Regular expressions Partial[5] Yes[6] ? ? ?
Boolean operators:
AND OR NOT Yes Yes[7] Yes ? ?
Multiple character encoding and languages Partial[8] Yes[9] Yes[10] ? ?
Keyword search Yes Yes ? ? ?
Full text search Yes No[11] Yes ? ?
Searching exact sentences supports:
line breaks Yes ? ? ? ?
Searching exact sentences supports:
de-hyphenation on line breaks[12] No ? ? ? ?
Searching exact sentences supports:
text in columns[13] ? ? ? ? ?
Searching exact sentences supports:
non-alphanumeric characters Partial[14] ? ? ? ?
Stemming Yes[15] Yes Yes ? ?
Allow user tagging No Yes ? ? ?
Restrict search to tags N/A Yes ? ? ?
Restrict search to directories Partial[16] Yes Yes[17] ? ?
Metadata-based image retrieval Yes ? ? ? ?
Content-based image retrieval No ? ? ? ?
Thumbnails for indexed images and videos Yes[18] Yes ? ? ?
Index archive files recursively Yes No[19] ? ? ?
Index removable media No[20] No[20] ? ? ?
Different database catalogs for indexing data Yes Yes ? ? ?
File checksum (allows finding duplicate files) No No[21] ? Yes ?
Back end used Lucene.Net ? Xapian ? ?

[edit] 2 Operating systems supported
Beagle Tracker Recoll Strigi Jindex
Linux Yes Yes Yes Yes Yes
Mac OS X Work In Progress Yes Yes Yes ?
Windows Work In Progress No No Yes ?

[edit] 3 Archive file types supported
Beagle Tracker Recoll Strigi Jindex
zip Yes No ? ? ?
rar No No ? ? ?
7-zip No No ? ? ?
tar Yes No ? ? ?
gzip Yes No ? ? ?
bzip2 Yes No ? ? ?


[edit] 4 Databases supported for storing indexed data
Beagle Tracker Recoll Strigi Jindex
SQLite ? Yes ? ? ?


[edit] 5 See also

* Desktop search
* List of desktop search engines

[edit] 6 External links

* Desktop search tools for GNU/Linux: the competition hots up - Tracker, Recoll Strigi and Deskbar
* Comparison of indexers: Beagle, JIndex, Tracker, Strigi (December 2006)

[edit] 7 Notes and references

1. ^ http://mail.gnome.org/archives/dashboard-hackers/2008-March/msg00012.html
2. ^ http://www.gnome.org/projects/tracker/features.html
3. ^ http://mail.gnome.org/archives/tracker-list/2008-March/msg00031.html
4. ^ http://www.lesbonscomptes.com/recoll/features.html
5. ^ Only wildcard query terms supported for full text searches.
6. ^ Through RDF query. Additionally, future Xesam implementation will do this too.
7. ^ An expression tree is planned in the near future to do other booleans.
8. ^ Planned. Currently, its utf8 by default if the encoding is not specified for the file (some files e.g. html files can specify the encoding in their metadata).
9. ^ Everything is converted to UTF-8. Non-UTF8 needs the user's locales set up appropriately so that data can be successfully converted to UTF-8.
10. ^ Support for multiple charsets. Internal processing and storage uses Unicode UTF-8.
11. ^ Exact and precise phrases is planned to be supported shortly. It will be case-insensitive but otherwise precise including non-alphanumerics.
12. ^ That would mean the text "wa-(line break here)ter" would be indexed as "water".
13. ^ It is common for scientific articles to be available in PDF format where each page has two columns. This feature means that lines are index as per-column (correct mode) instead of per-page.
14. ^ String "a+b" can be searched and will return matching files with "a+b" in them, but will also return files with "a-b", i.e. the non-alphanumeric character is not matched.
15. ^ Full text searches are always stemmed. Keyword seaches are never stemmed.
16. ^ Searching by specifying a directory will only search in that directory (or directories if the name matches multiple actual locations) but no recursively in its subdirectories.
17. ^ Also allows specific file name searches with wildcards.
18. ^ The search service does not generate thumbnails itself. The search GUIs use the thumbnailers of the respective desktop environments (e.g. beagle-search uses the GNOME thumbnailer, kerry uses KDE thumbnail API).
19. ^ Will probably do so soon.
20. ^ a b Planned feature.
21. ^ Hasn't been fully implemented since to the author's this has not been necessary.

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This page was last modified on 2008-03-08, at 19:57:23. All text is available under the terms of the GNU Free Documentation License. (See Copyrights for details.)
Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3) tax-deductible nonprofit charity.