Re: Boost according to values

[Walter Underwood]

1. Use edismax and the boost parameter. Multiplicative boosting works much, 
much better than the additive boost used in dismax.

2. Use a log-scaled popularity value. If you know popularity is always greater 
than 1, use “1 + log(popularity)”. It is a bit safer to use “1 + log(max(1, 
popularity))”.

3. Multiple that value by a weight to make it a tie-breaker. If two items have 
the same title (or text), you want the more popular one first. But you rarely 
want a different result boosted above a match. No matter how popular the movie 
“Twilight” is, it should not rank above “Twilight Zone” for the query “twilight 
zone”.

wunder
Walter Underwood
wun...@wunderwood.org
http://observer.wunderwood.org/  (my blog)


> On Sep 18, 2016, at 11:49 PM, Rajendra Gaikwad  wrote:
> 
> Hi Midas,
> I am sure,even though you have results with constant relavance, sorting
> will give you expected results.
> Anyway there is parameter bf in dismax parser. Add parameter
> bf=field(popularity) to query, It is similar to boost items by value in
> popularity field. hence ultimately higher popularity items occurs on top.
> Add parameter to your query bf=field(popularity)=edismax
> 
> 
> Thanks,
> Rajendra Gaikwad
> 
> On Mon, Sep 19, 2016, 11:55 AM Midas A  wrote:
> 
>> my use case do not suggest me to sort  . i have set of data with same
>> relevance.
>> 
>> what should be query in that case  .
>> 
>> On Mon, Sep 19, 2016 at 11:51 AM, Rajendra Gaikwad 
>> wrote:
>> 
>>> Hi Midas,
>>> 
>>> Sort search results on popularity field by desc order.
>>> E.g popularity is field in the index which stores popularity information.
>>> 
>>> http://localhost:8983/solr/mycollection/select?q=*:*=popularity
>> desc
>>> 
>>> Thanks,
>>> Rajendra Gaikwad
>>> Please execuse typo
>>> 
>>> 
>>> 
>>> On Mon, Sep 19, 2016, 11:36 AM Midas A  wrote:
>>> 
 i have n items in my search result  with popularity (1,2,3,4n) . I
>>> want
 higher popularity item should come first then next popularity item
 
 
 say for example
 a) item with popularity n,
 b) item with popularity n -1,
 c) item with popularity n -2,
 d) item with popularity n - 3,
 e) item with popularity n - 4,
 f) item with popularity n - 5,
 
 
 y) item with popularity 2,
 z) item with popularity 1,
 
 
 what should be my query  if relevance for items are constant
 
>>> --
>>> 
>>> sent from mobile, execuse typo
>>> 
>> 
> -- 
> 
> sent from mobile, execuse typo

Re: Boost according to values

[Rajendra Gaikwad]

Hi Midas,
I am sure,even though you have results with constant relavance, sorting
will give you expected results.
Anyway there is parameter bf in dismax parser. Add parameter
bf=field(popularity) to query, It is similar to boost items by value in
popularity field. hence ultimately higher popularity items occurs on top.
Add parameter to your query bf=field(popularity)=edismax


Thanks,
Rajendra Gaikwad

On Mon, Sep 19, 2016, 11:55 AM Midas A  wrote:

> my use case do not suggest me to sort  . i have set of data with same
> relevance.
>
> what should be query in that case  .
>
> On Mon, Sep 19, 2016 at 11:51 AM, Rajendra Gaikwad 
> wrote:
>
> > Hi Midas,
> >
> > Sort search results on popularity field by desc order.
> > E.g popularity is field in the index which stores popularity information.
> >
> > http://localhost:8983/solr/mycollection/select?q=*:*=popularity
> desc
> >
> > Thanks,
> > Rajendra Gaikwad
> > Please execuse typo
> >
> >
> >
> > On Mon, Sep 19, 2016, 11:36 AM Midas A  wrote:
> >
> > > i have n items in my search result  with popularity (1,2,3,4n) . I
> > want
> > > higher popularity item should come first then next popularity item
> > >
> > >
> > > say for example
> > > a) item with popularity n,
> > > b) item with popularity n -1,
> > > c) item with popularity n -2,
> > > d) item with popularity n - 3,
> > > e) item with popularity n - 4,
> > > f) item with popularity n - 5,
> > > 
> > > 
> > > y) item with popularity 2,
> > > z) item with popularity 1,
> > >
> > >
> > > what should be my query  if relevance for items are constant
> > >
> > --
> >
> > sent from mobile, execuse typo
> >
>
-- 

sent from mobile, execuse typo

Re: Boost according to values

[Midas A]

my use case do not suggest me to sort  . i have set of data with same
relevance.

what should be query in that case  .

On Mon, Sep 19, 2016 at 11:51 AM, Rajendra Gaikwad 
wrote:

> Hi Midas,
>
> Sort search results on popularity field by desc order.
> E.g popularity is field in the index which stores popularity information.
>
> http://localhost:8983/solr/mycollection/select?q=*:*=popularity desc
>
> Thanks,
> Rajendra Gaikwad
> Please execuse typo
>
>
>
> On Mon, Sep 19, 2016, 11:36 AM Midas A  wrote:
>
> > i have n items in my search result  with popularity (1,2,3,4n) . I
> want
> > higher popularity item should come first then next popularity item
> >
> >
> > say for example
> > a) item with popularity n,
> > b) item with popularity n -1,
> > c) item with popularity n -2,
> > d) item with popularity n - 3,
> > e) item with popularity n - 4,
> > f) item with popularity n - 5,
> > 
> > 
> > y) item with popularity 2,
> > z) item with popularity 1,
> >
> >
> > what should be my query  if relevance for items are constant
> >
> --
>
> sent from mobile, execuse typo
>

Re: Boost according to values

[Rajendra Gaikwad]

Hi Midas,

Sort search results on popularity field by desc order.
E.g popularity is field in the index which stores popularity information.

http://localhost:8983/solr/mycollection/select?q=*:*=popularity desc

Thanks,
Rajendra Gaikwad
Please execuse typo



On Mon, Sep 19, 2016, 11:36 AM Midas A  wrote:

> i have n items in my search result  with popularity (1,2,3,4n) . I want
> higher popularity item should come first then next popularity item
>
>
> say for example
> a) item with popularity n,
> b) item with popularity n -1,
> c) item with popularity n -2,
> d) item with popularity n - 3,
> e) item with popularity n - 4,
> f) item with popularity n - 5,
> 
> 
> y) item with popularity 2,
> z) item with popularity 1,
>
>
> what should be my query  if relevance for items are constant
>
-- 

sent from mobile, execuse typo

Re: Boost according to values

[Rajendra Gaikwad]

Hi Midas,

Sort search results on popularity field by desc order.
E.g popularity is field in the index which stores  popularity information.

http://localhost:8983/solr/mycollection/select?q=*:*=popularity desc

Thanks,
Rajendra Gaikwad
Please execuse typo

On Mon, Sep 19, 2016, 11:36 AM Midas A  wrote:

> i have n items in my search result  with popularity (1,2,3,4n) . I want
> higher popularity item should come first then next popularity item
>
>
> say for example
> a) item with popularity n,
> b) item with popularity n -1,
> c) item with popularity n -2,
> d) item with popularity n - 3,
> e) item with popularity n - 4,
> f) item with popularity n - 5,
> 
> 
> y) item with popularity 2,
> z) item with popularity 1,
>
>
> what should be my query  if relevance for items are constant
>
-- 

sent from mobile, execuse typo

Boost according to values

[Midas A]

i have n items in my search result  with popularity (1,2,3,4n) . I want
higher popularity item should come first then next popularity item


say for example
a) item with popularity n,
b) item with popularity n -1,
c) item with popularity n -2,
d) item with popularity n - 3,
e) item with popularity n - 4,
f) item with popularity n - 5,


y) item with popularity 2,
z) item with popularity 1,


what should be my query  if relevance for items are constant