Hi,
I'm confused about managing field boosting ...
I have set the :boost for the :name field in my docs to 10, via :boost
=> 10
Then I performed a search for 'keith' over all fields via with
*:(keith*), expecting a doc with Keith in the :name field to come out on
top. But another doc with Keith mentioned in other fields (:comments,
:address) scored higher.
I viewed the explanation from the searcher, but it wasn't clear to me
why the boost wasn't pushing the :name = Keith document to the top.
Any help on understanding field boosting and explain would be great.
Regards
Neville
PS, the two explains are:
Doc1:
0.3352959 = product of:
8.047102 = sum of:
4.011141 = weight(comments:<keith|[EMAIL PROTECTED]|keithex> in
4697), product of:
0.5685414 =
query_weight(comments:<keith|[EMAIL PROTECTED]|keithex>), product of:
28.22057 = idf(comments:<(keithex=1) + ([EMAIL PROTECTED]) +
(keith=115) = 117>)
0.02014635 = query_norm
7.055143 = field_weight(comments:<keith|[EMAIL PROTECTED]|keithex>
in 4697), product of:
1.0 = The sum of:
1.0 = tf(term_freq(comments:keithex)=1)^1.0
28.22057 = idf(comments:<(keithex=1) + ([EMAIL PROTECTED]) +
(keith=115) = 117>)
0.25 = field_norm(field=comments, doc=4697)
4.03596 = weight(address:<keith|keithex> in 4697), product of:
0.4032613 = query_weight(address:<keith|keithex>), product of:
20.0166 = idf(address:<(keithex=1) + (keith=8) = 9>)
0.02014635 = query_norm
10.0083 = field_weight(address:<keith|keithex> in 4697), product
of:
1.0 = The sum of:
1.0 = tf(term_freq(address:keithex)=1)^1.0
20.0166 = idf(address:<(keithex=1) + (keith=8) = 9>)
0.5 = field_norm(field=address, doc=4697)
0.04166667 = coord(2/48)
Doc2:
0.2977623 = product of:
14.29259 = weight(name:<keith> in 31416), product of:
0.2028171 = query_weight(name:<keith>), product of:
10.06719 = idf(name:<(keith=3) = 3>)
0.02014635 = query_norm
70.47034 = field_weight(name:<keith> in 31416), product of:
1.0 = The sum of:
1.0 = tf(term_freq(name:keith)=1)^1.0
10.06719 = idf(name:<(keith=3) = 3>)
7.0 = field_norm(field=name, doc=31416)
0.02083333 = coord(1/48)
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