Re: dismax matches ranking

[Chris Hostetter]

: 1. dismax query handler and filter query (fq)
: 
: if query= coffee , fq= yiw_bus_city: san jose, 
: 
: I get 0 results for this query again, but this one works fine, If mention
: qt=standard query handler

with qt=standard this is matching whatever your defaultSearchField is 
configured to be ... if that field isn't in the qf for your dismax 
handler, that would explain why dismax doesn't find it.

: 2. dismax and ranking
: 
: q=san jose 
: 
: but my collection have more document for San Francisco, less for San Jose,
: 
: a. i get san francisco listed or listed before san jose some time, i guess
: this is because of the term frequency of san francisco,

it's hard to say without looking ath te score expalinations for documents 
that score high (even though you don't want them to) and the explanations 
for documents that score low (even though you wnat them high) ... more 
then likely you should be using more fields with bigger boosts in your 
pf so that documents are heavily rewarded when they match the full query 
string exactly.


-Hoss

dismax matches ranking

[ram_sj]

Hi I have following questions about dismax query handler? someone can clarify
me about it.

1. dismax query handler and filter query (fq)

if query= coffee , fq= yiw_bus_city: san jose, 

I get 0 results for this query again, but this one works fine, If mention
qt=standard query handler

2. dismax and ranking

q=san jose 

but my collection have more document for San Francisco, less for San Jose,

a. i get san francisco listed or listed before san jose some time, i guess
this is because of the term frequency of san francisco,

how can I present the results for the exact query match first? , I don't
want to manually boost the particular keyword for some reason. listing the
exact matches first and following by other results will be good.


configs:

requestHandler name=dismax class=solr.SearchHandler default=true 
lst name=defaults
  str name=defTypedismax/str
  str name=echoParamsexplicit/str
  float name=tie0.01/float
  str name=qf
yiw_bus_name^1.0 yiw_bus_city^1.0 yiw_bus_ps_info^0.2
yiw_bus_description^0.2 yiw_bus_general_information^0.2 yiw_bus_zip^0.5
yiw_bus_street^0.5
  /str
  str name=pf
yiw_bus_city^1.0 yiw_bus_zip^0.5 yiw_bus_street^0.5
  /str
  str name=bf
ord(yiw_bus_name)^0.5 recip(rord(yiw_bus_city),1,1000,1000)^0.3
  /str
  !-- 
 str name=fl/str
 --
  str name=mm
2lt;-1 5lt;-2 6lt;70%
  /str
  int name=ps100/int
  str name=q.alt*:*/str
  !-- example highlighter config, enable per-query with hl=true --
  str name=hl.fl/str
  !-- for this field, we want no fragmenting, just highlighting --
  str name=f.name.hl.fragsize0/str
  !-- instructs Solr to return the field itself if no query terms are
  found --
  str name=f.name.hl.alternateFieldyiw_bus_name/str
  str name=f.text.hl.fragmenterregex/str
  !-- defined below --
/lst
  /requestHandler

schema:

field name=yiw_bus_general_information type=text indexed=true
stored=true default=NA /
field name=yiw_bus_ps_info type=string indexed=true stored=true
default=NA /
field name=yiw_bus_city type=string indexed=true stored=true
multiValued=false default=NA /
field name=yiw_bus_state type=string indexed=true stored=true
multiValued=false default=NA /
field name=yiw_bus_country type=string indexed=true stored=true
multiValued=false default=NA /
field name=yiw_bus_street type=string indexed=true stored=true
multiValued=false default=NA /
field name=yiw_bus_zip type=string   indexed=true  stored=true
multiValued=false default=0 /







 
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