[hibernate-dev] HSEARCH Faceting and facet counts

[Emmanuel Bernard]

>From what I understand, they do the following:
- each facet group offer the list of facets and the number of elements in
  each facet as if none of the facet for that group is selected.
- if a given facet group A has some facets selected, then the other facet
  groups and their facet list and numbers are filtered by the facet
  group A.

That's consistent to me and what I would expect intuitively before
thinking about implementation details.

They also allow to select multiple facets for a given facet group but
that's an orthogonal story.

Emmanuel

On Mon 2013-06-03 16:27, Sanne Grinovero wrote:
> oh, I actually played with the Amazon site before replying to you and
> the quick (too brief) experiments I had done seemed to endorse my
> theory.
> 
> After a better look now, it seems they apply a different strategy
> depending on the selection; I think the way they do it makes sense but
> it's impressive that the user is fooled into a non-consistent API, and
> it still "feels" like all is consistent.
> 
> On 3 June 2013 14:10, Emmanuel Bernard <emmanuel at hibernate.org> wrote:
> > On Mon 2013-06-03 10:28, Sanne Grinovero wrote:
> >> On 3 June 2013 09:59, Hardy Ferentschik <hardy at hibernate.org> wrote:
> >> >
> >> > On 31 Jan 2013, at 11:32 PM, Emmanuel Bernard <emmanuel at hibernate.org> wrote:
> >> >
> >> >> I know we had a debate but I can't seem to find any detail in the
> >> >> documentation about how facet selection influences the facet counts.
> >> >>
> >> >> In my demo, the facet count is applied after the selection. ie if I do a
> >> >> query that returns '< $100' = 20 and '> $100' = 45, once I select '<
> >> >> $100', the count displayed on '> $100' = 0 which is very weird from a
> >> >> use point of view.
> >>
> >> Right that looks weird, but shouldn't you be hiding the other facets
> >> after having selected one?
> >> I would expect a UI to potentially show new sub-facets only, to allow
> >> a user to drill into more details.
> >
> > The thing is, if you select a price range, you want to be able to select
> > the other price range, so you can't "hide it".
> >
> > Play a bit with Amazon's version
> > http://www.amazon.com/s/ref=sr_nr_p_n_size_browse-bin_3?rh=n%3A3151491%2Ck%3AUSB%2Cp_n_size_browse-bin%3A1259713011&keywords=USB&ie=UTF8&qid=1370264935&rnid=1259751011