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Date: Tue, 11 Feb 2014 00:48:48 +0900
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Subject: Re: Regarding DrillDown search
From: Jebarlin Robertson <jebarlin@gmail.com>
To: java-user@lucene.apache.org
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Hi Shai,

Yeah exactly the same way I want to display.

Then I will do the same way of stored field.

It is not about lack of creativity, I might have not explained you in the
proper way :)

Thank you for all the support :)


On Tue, Feb 11, 2014 at 12:23 AM, Shai Erera <serera@gmail.com> wrote:

> What you want sounds like grouping more like faceting?
>
> So e.g. if you have an Author field with values A1, A2, A3, and the user
> searches for 'love',
> then if I understand correctly, you want to display something like:
>
> Author/A1
>   Doc1
>   Doc2
> Author/A2
>   Doc3
>   Doc4
> Author/A3
>   Doc5
>   Doc6
>
> Is that right?
>
>
> Where's today your result page looks like this:
>
> Facets           Results
> ------           -----------
> Author           Doc1_Title
>   A1 (4)         Doc1_Highlight
>   A2 (3)         ++++
>   A3 (1)         Doc2_Title
>                  Doc2_Highlight
>                  +++
>                  ...
>
> (Forgive my lack of creativity :)).
>
> If you're not interested in join, and just want to add to each document its
> Author facet in the results pane, then I suggest you add another stored
> field (only stored, not indexed) with the category value. And then you
> could display:
>
> Facets           Results
> ------           -----------
> Author           Doc1_Title
>   A1 (4)         Doc1_Highlight
>   A2 (3)         Author: A1
>   A3 (1)         ++++
>                  Doc2_Title
>                  Doc2_Highlight
>                  Author: A2
>                  +++
>                  ...
>
> Did I understand properly?
>
> Shai
>
> On Mon, Feb 10, 2014 at 4:51 PM, Jebarlin Robertson <jebarlin@gmail.com
> >wrote:
>
> > Hi Shai,
> >
> > Thanks for the explanation :)
> >
> > For my requirement, I just want to display the list of resulted documents
> > to the user.
> > In Facet search case also, I already have the resulted documents list in
> > TopDoc and the FacetResults have only the count of documents contributed
> to
> > each Catagory,
> >
> > According to my understanding,
> >
> > Suppose I query for the word "Love", Now I do Facet Search and gets 4
> > (Files) documents as matched results from TopScoreDocCollector as TopDocs
> > and I will get the FacetResult from the FacetCollector.
> > And the FacetResultsNode gives me only the values of the category and the
> > count of how many documents falls under same category (May be by Author
> or
> > other provided categories ) among the 4 resulted documents only.
> >
> > I feel, It will be good if I get the category association with the
> resulted
> > documents, as I have the document list already from TopScoreDocCollector.
> >
> > I can do DrillDown Search also by selecting each category, But in my
> case I
> > just want to display the 4 documents result first and then category wise,
> > suppose 2 documents by the same Author etc....
> >
> > As per my requirement, I am doing DrillDown Search by asking the user to
> > provide such as title of the docment, author of the document, etc... as
> > advanced search option.
> >
> > ---
> > Jebarlin Robertson.R
> >
> >
> >
> > On Mon, Feb 10, 2014 at 10:30 PM, Shai Erera <serera@gmail.com> wrote:
> >
> > > Ahh I see ... so given a single FacetResultNode, you would like to know
> > > which documents contributed to its weight (count in your case). This is
> > not
> > > available immediately, that's why you need to do a drill-down query. So
> > if
> > > you return the user a list of categories, when he clicks one of them,
> you
> > > perform a drill-down query on that category and retrieve all the
> > associated
> > > documents.
> > >
> > > May I ask why do you need to know the list of documents given a
> > > FacetResultNode?
> > >
> > > Basically in the 3.6 API it's kind of not so simple to do what you want
> > in
> > > one-pass, but in the 4.x API (especially the upcoming 4.7) it should be
> > > very easy -- when you traverse the list of matching documents, besides
> > only
> > > reading the list of categories associated with it, you also store a map
> > > Category -> List<docIDs>. This isn't very cheap though ...
> > >
> > > So I guess it would be good if I understand why do you need to know
> which
> > > documents contributed to which category, before the results are
> returned
> > to
> > > the user.
> > >
> > > Shai
> > >
> > >
> > > On Mon, Feb 10, 2014 at 3:16 PM, Jebarlin Robertson <
> jebarlin@gmail.com
> > > >wrote:
> > >
> > > > Hi Shai,
> > > >
> > > > Thanks,
> > > >
> > > > I am using the same way of BooleanQuery only with list of PrefixQuery
> > > only.
> > > > I think I confused you sorry :) .
> > > >
> > > > I am using the same above code to get the result of documents. I am
> > > getting
> > > > the TopDocs and retrieving the Documents also, If I don't even try
> that
> > > for
> > > > the basic you will kill me :D.
> > > > But my question was different, from the List of FacetResult I am
> > getting
> > > > only the counts or no of hits of Document in each category after
> > > iterating
> > > > the list.
> > > > I believe that the getLevel() of FacetNode returns the no of hits or
> no
> > > of
> > > > documents falls into the particular Category.
> > > > I need to know which are the documents are falling under the same
> > > category
> > > > from the FacetResult Object also.
> > > >
> > > > I hope you will understand my question :)
> > > >
> > > > Thank you :)
> > > >
> > > > --
> > > > Jebarlin
> > > >
> > > >
> > > >
> > > > On Mon, Feb 10, 2014 at 9:09 PM, Shai Erera <serera@gmail.com>
> wrote:
> > > >
> > > > > Hi
> > > > >
> > > > > You will need to build a BooleanQuery which comprises a list of
> > > > > PrefixQuery. The relation between each PrefixQuery should be OR or
> > AND,
> > > > as
> > > > > you see fit (I believe OR?).
> > > > >
> > > > > In order to get documents' attributes you should execute
> > > > searcher.search()
> > > > > w/ e.g. MultiCollector which wraps a FacetsCollector and
> > > > > TopScoreDocCollector. Then after .search() finished, you should
> pull
> > > the
> > > > > facet results from the FacetsCollector instance and the document
> > > results
> > > > > from the TopScoreDocCollector instance. Something like (I hope it
> > > > compiles
> > > > > in 3.6! :)):
> > > > >
> > > > > TopScoreDocCollector tsdc = TopScoreDocCollector.create(...);
> > > > > FacetsCollector fc = FacetsCollector.create(...);
> > > > > searcher.search(query, MultiCollector.wrap(tsdc, fc));
> > > > >
> > > > > List<FacetResult> facetResults = fc.getFacetResults();
> > > > > TopDocs topDocs = tsdc.topDocs();
> > > > >
> > > > > Something like that..
> > > > >
> > > > > Shai
> > > > >
> > > > >
> > > > > On Mon, Feb 10, 2014 at 1:57 PM, Jebarlin Robertson <
> > > jebarlin@gmail.com
> > > > > >wrote:
> > > > >
> > > > > > Dear Shai,
> > > > > >
> > > > > > Thank you for the quick response :)
> > > > > >
> > > > > > I have checked with PrefixQuery and term, it is working fine,
> But I
> > > > > think I
> > > > > > cannot pass multiple Category path in it. I am calling the
> > > > > > DrillDown.term() method 'N' number of times based on the number
> of
> > > > > Category
> > > > > > Path list.
> > > > > >
> > > > > > And I have one more question, When I get the FacetResult, I am
> > > getting
> > > > > only
> > > > > > the count of documents matched with the Category Path.
> > > > > > Is there anyway to get the Document object also along with the
> > count
> > > to
> > > > > > know the file names For ex. Files (file names -title Field in
> > > Document)
> > > > > > which have the same Author from the FacetResult. I have read some
> > > > > articles
> > > > > > for the same from one of your answer I believe.
> > > > > > In that you have explained like this "Categories will be listed
> to
> > > the
> > > > > user
> > > > > > and when the user clicks the category we have to do DrillDown
> > search
> > > to
> > > > > get
> > > > > > further result.
> > > > > > I just want to know if we can get the document names as well in
> the
> > > > first
> > > > > > Facet query search itself, when we get the count (no of hits) of
> > > > > documents
> > > > > > along with the FacetResult. Is there any solution available
> already
> > > or
> > > > > what
> > > > > > I can do for that.
> > > > > >
> > > > > > Kindly Guide me :)
> > > > > >
> > > > > > Thank you for All your Support.
> > > > > >
> > > > > > Regards,
> > > > > > Jebarlin.R
> > > > > >
> > > > > >
> > > > > > On Mon, Feb 10, 2014 at 1:28 PM, Shai Erera <serera@gmail.com>
> > > wrote:
> > > > > >
> > > > > > > Hi
> > > > > > >
> > > > > > > If you want to drill-down on first name only, then you have
> > several
> > > > > > > options:
> > > > > > >
> > > > > > > 1) Index Author/First, Author/Last, Author/First_Last as facets
> > on
> > > > the
> > > > > > > document. This is the faster approach, but bloats the index.
> > Also,
> > > if
> > > > > you
> > > > > > > index the author Author/Jebarlin, Author/Robertson and
> > > > > > > Author/Jebarlin_Robertson, it still won't allow you to execute
> a
> > > > query
> > > > > > > Author/Jebar.
> > > > > > >
> > > > > > > 2) You should modify the query to be a PrefixQuery, as if the
> > user
> > > > > chose
> > > > > > to
> > > > > > > search Author/Jeral*. You can do that with DrillDown.term() to
> > > > create a
> > > > > > > Term($facets, Author/Jeral) (NOTE: you shouldn't pass '*' as
> part
> > > of
> > > > > the
> > > > > > > CategoryPath) and then construct your own PrefixQuery with that
> > > Term.
> > > > > > >
> > > > > > > Hope that helps,
> > > > > > > Shai
> > > > > > >
> > > > > > >
> > > > > > > On Mon, Feb 10, 2014 at 6:21 AM, Jebarlin Robertson <
> > > > > jebarlin@gmail.com
> > > > > > > >wrote:
> > > > > > >
> > > > > > > > Dear Shai,
> > > > > > > >
> > > > > > > > I have one doubt in DrillDown search, when I search with a
> > > > > CategoryPath
> > > > > > > of
> > > > > > > > author, it is giving me the result if I give the accurate
> full
> > > name
> > > > > > only.
> > > > > > > > Is there any way to get the result even if I give the first
> or
> > > last
> > > > > > name.
> > > > > > > > Can you help me to search like (*contains* the word in Facet
> > > > search),
> > > > > > if
> > > > > > > > the latest API supports or any other APIs.
> > > > > > > >
> > > > > > > > Thank You
> > > > > > > >
> > > > > > > > --
> > > > > > > > Thanks & Regards,
> > > > > > > > Jebarlin Robertson.R
> > > > > > > > GSM: 91-9538106181.
> > > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > Thanks & Regards,
> > > > > > Jebarlin Robertson.R
> > > > > > GSM: 91-9538106181.
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Thanks & Regards,
> > > > Jebarlin Robertson.R
> > > > GSM: 91-9538106181.
> > > >
> > >
> >
> >
> >
> > --
> > Thanks & Regards,
> > Jebarlin Robertson.R
> > GSM: 91-9538106181.
> >
>


-- 
Thanks & Regards,
Jebarlin Robertson.R
GSM: 91-9538106181.

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