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billhongs / compressedbitset

Automatically exported from code.google.com/p/compressedbitset
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Make WAHBitSet more compatible with BitSet #2

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Some operations can be done with both uncompressed and compressed bitsets.
I plan to add those operations.

Original issue reported on code.google.com by devb...@gmail.com on 30 Nov 2007 at 9:56

GoogleCodeExporter commented 9 years ago 
And easy export back to uncompressed bitmap?

Original comment by earwin@gmail.com on 27 Dec 2007 at 6:41

GoogleCodeExporter commented 9 years ago 
sure, this task includes adding uncompress/compress methods as well.

Original comment by devb...@gmail.com on 27 Dec 2007 at 8:08

GoogleCodeExporter commented 9 years ago 
Hm, is it possible to contact you?
earwin->gmail.com

Original comment by earwin@gmail.com on 27 Dec 2007 at 8:34

GoogleCodeExporter commented 9 years ago 
sure, my email is similar to your devbrat->gmail.com

Original comment by devb...@gmail.com on 27 Dec 2007 at 10:50

GoogleCodeExporter commented 9 years ago 
Hey devrat, thanks a lot for the compressed bit set!

I was wondering what the efficiency of your java implementation is, compared to 
the
original?

Original comment by nkhlanand@gmail.com on 14 Jul 2008 at 10:12

GoogleCodeExporter commented 9 years ago 
This is slower than C++ implementation, though I don't remember how slow 
exactly.

But this is much faster than using JNI with the C++ as a native library.

Original comment by devb...@gmail.com on 17 Jul 2008 at 9:14

GoogleCodeExporter commented 9 years ago 
Ah, thanks.

I noticed that you organized the files in packages. Would it be possible to 
place all
the files in the same directory and use them as classes instead? For example, 
instead
of making the WAHBitSet a package, would it be possible to make it a call-able 
class
in the same directory as the other files? That way you could eliminate the 
import
statements and increase efficiency?

Original comment by nkhlanand@gmail.com on 28 Jul 2008 at 5:55

GoogleCodeExporter commented 9 years ago 
Hi people
Any progress in this project?
Especially with 'Issue 4', which is a serious Bug in the 'AND' operation !
I send some of you an email, in case nobody is reading this anymore!

Or does anyone have a working alternative, for WAH bitsets?

thx,
Laurent

Original comment by laurent....@gmail.com on 24 Apr 2009 at 2:16

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
Hi people,

If you are looking for a working alternative for WAH bitsets, please have a 
look at 
http://ricerca.mat.uniroma3.it/users/colanton/concise.html.

I tested all the basic operations (add, remove, union, intersection, 
difference, 
etc.) and there should not be any serious bug. 

In any case, any suggestion or bug report will be very appreciated!!!

Ciao,

Alessandro

Original comment by alessand...@gmail.com on 8 Apr 2010 at 10:30