On Wed, 11 Sep 2019 at 12:36, Gary Gregory <garydgreg...@gmail.com> wrote:
>
> I would like to know more. I am curious since looking up whether an element
> is in a set is done via a hash code. How do you do better than that?

Wikipedia has a good explanation:

https://en.wikipedia.org/wiki/Bloom_filter

Basically instead of a hash you create a bit mask and set/test that.

This can give false positives, but not false negatives.

> Gary
>
> On Tue, Sep 10, 2019, 16:51 Bruno P. Kinoshita <ki...@apache.org> wrote:
>
> >  +1 Collections sounds like a good place for a bloom filter.
> >
> > Bruno
> >
> >     On Wednesday, 11 September 2019, 8:00:45 am NZST, Jochen Wiedmann <
> > jochen.wiedm...@gmail.com> wrote:
> >
> >  Hi, Claude,
> >
> > having read, what a bloom filter is, a subproject sounds unnecessary
> > to me. I'd recommend, that you contribute your code to Commons
> > Collections, which seems to me to be a logical target.
> >
> > Jochen
> >
> > On Tue, Sep 10, 2019 at 8:45 PM Claude Warren <cla...@xenei.com> wrote:
> > >
> > > Having spoken with several people at ApacheCon, I would like to see a
> > > bloomfilter sub project.  I have code that is already under Apache
> > License
> > > that I am willing to contribute as the basis The goal of the sub-project
> > > would be to produce a reference implementation that could be used by
> > other
> > > projects that desire to have use bloom filters and bloom filter based
> > > collections.
> > >
> > > Is there any objection to doing this?  Other than asking here, what is
> > the
> > > proper path to get a sub-project created,  What does the Commons PMC
> > > require?
> > >
> > > Any assistance and comments would be apprecieated.
> > > Claude
> > >
> > > --
> > > I like: Like Like - The likeliest place on the web
> > > <http://like-like.xenei.com>
> > > LinkedIn: http://www.linkedin.com/in/claudewarren
> >
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