Some values in the norm/boost area are stored encoded with some loss
of precision. Details in the javadocs somewhere. What values do you
get when you change the boost?
--
Ian.
2012/1/14 ltomuno <ltom...@163.com>:
> the following message comes from Explanation explain
> 0.09375 = (MATCH) fieldWeight(name:85 in 8687), product of
> 1.0 = tf(termFreq(name:85)=1)
> 1.0 = idf(docFreq=1406, maxDocs=14129)
> 0.09375 = fieldNorm(field=name, doc=8687)
>
>
> fieldNorm 0.09375
> the value 0.09375 is what determines and where can control it?
> use 0.1 boost on the name field
> use CustomSimilarity
> public float computeNorm(String field, FieldInvertState state) {
> return state.getBoost();
> }
> public float queryNorm(float sumOfSquaredWeights) {
> return 1F;
> }
> public float tf(float freq) {
> return (float) 1F;
> }
> public float sloppyFreq(int distance) {
> return 1F;
> }
> public float idf(int docFreq, int numDocs) {
> return 1F;
> }
> public float coord(int overlap, int maxOverlap) {
> return 1F;
> }
>
>
> thanks
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