Paul Elschot wrote:
On Saturday 28 January 2006 19:27, eks dev wrote:
might be interesting:
http://www.iis.uni-stuttgart.de/intset/
Another way to represent Bit(Integer)Set. Should
outperform nicely BitSet or HashBitSet as far as
iteration speed and memory is concern. In Lucene where
distribution of set bits is typically exponential...
usage in caching, Filter...
This gives some context, a performance comparison program,
and indicates that the licence for the context is LGPL:
http://www.iis.uni-stuttgart.de/personen/lippold/MathCollection/index-en.html
Unfortunately, the license distributed with the JAR (which we must
assume takes precedence over whatever is stated on the web pages) is
much more restrictive, it's the Java Research License, which
specifically disallows any commercial use. So, short of reimplementing
it from scratch it's of no use except for academic study. Pity.
--
Best regards,
Andrzej Bialecki <><
___. ___ ___ ___ _ _ __________________________________
[__ || __|__/|__||\/| Information Retrieval, Semantic Web
___|||__|| \| || | Embedded Unix, System Integration
http://www.sigram.com Contact: info at sigram dot com
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
