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https://issues.apache.org/jira/browse/LUCENE-6275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand updated LUCENE-6275:
---------------------------------
Attachment: LUCENE-6275.patch
Here is a patch which yields a modest speedup with sloppy phrase queries:
{noformat}
TaskQPS baseline StdDev QPS patch StdDev
Pct diff
AndHighHigh 51.02 (2.3%) 50.50 (1.5%)
-1.0% ( -4% - 2%)
AndHighMed 84.88 (2.2%) 84.34 (1.8%)
-0.6% ( -4% - 3%)
PKLookup 268.94 (2.9%) 268.67 (2.9%)
-0.1% ( -5% - 5%)
IntNRQ 16.03 (6.3%) 16.05 (4.8%)
0.2% ( -10% - 11%)
OrNotHighMed 171.70 (3.2%) 172.39 (2.2%)
0.4% ( -4% - 6%)
LowTerm 855.24 (6.1%) 859.47 (4.0%)
0.5% ( -9% - 11%)
OrHighNotLow 35.75 (2.1%) 35.94 (1.4%)
0.5% ( -2% - 4%)
OrHighLow 17.66 (9.7%) 17.75 (8.8%)
0.5% ( -16% - 21%)
Respell 53.38 (6.0%) 53.69 (4.6%)
0.6% ( -9% - 11%)
Prefix3 31.75 (6.3%) 31.94 (5.3%)
0.6% ( -10% - 12%)
OrHighNotHigh 50.56 (2.2%) 50.88 (1.2%)
0.6% ( -2% - 4%)
OrHighHigh 39.59 (10.5%) 39.86 (8.6%)
0.7% ( -16% - 22%)
MedSpanNear 20.07 (2.4%) 20.21 (1.6%)
0.7% ( -3% - 4%)
OrHighMed 54.66 (9.3%) 55.04 (8.4%)
0.7% ( -15% - 20%)
OrHighNotMed 63.77 (2.3%) 64.21 (1.3%)
0.7% ( -2% - 4%)
LowPhrase 34.61 (3.2%) 34.86 (1.6%)
0.7% ( -4% - 5%)
HighPhrase 21.22 (2.5%) 21.37 (1.6%)
0.7% ( -3% - 4%)
HighTerm 116.09 (3.8%) 117.07 (2.4%)
0.9% ( -5% - 7%)
MedTerm 302.55 (3.6%) 305.14 (2.5%)
0.9% ( -5% - 7%)
Wildcard 84.58 (4.3%) 85.50 (3.0%)
1.1% ( -5% - 8%)
HighSpanNear 11.34 (3.3%) 11.47 (1.7%)
1.1% ( -3% - 6%)
OrNotHighLow 574.75 (5.3%) 581.11 (4.2%)
1.1% ( -7% - 11%)
LowSpanNear 17.90 (3.9%) 18.11 (1.8%)
1.1% ( -4% - 7%)
AndHighLow 746.65 (4.0%) 755.38 (3.3%)
1.2% ( -5% - 8%)
OrNotHighHigh 47.14 (4.1%) 47.76 (1.3%)
1.3% ( -3% - 7%)
Fuzzy1 85.35 (14.0%) 87.01 (6.9%)
1.9% ( -16% - 26%)
MedPhrase 90.08 (6.1%) 92.08 (3.8%)
2.2% ( -7% - 12%)
LowSloppyPhrase 75.57 (4.6%) 78.69 (4.5%)
4.1% ( -4% - 13%)
HighSloppyPhrase 12.02 (4.1%) 12.63 (3.7%)
5.1% ( -2% - 13%)
Fuzzy2 55.98 (16.2%) 59.21 (16.2%)
5.8% ( -22% - 45%)
MedSloppyPhrase 35.37 (4.1%) 38.01 (2.8%)
7.5% ( 0% - 14%)
{noformat}
> SloppyPhraseScorer should use ConjunctionDISI
> ---------------------------------------------
>
> Key: LUCENE-6275
> URL: https://issues.apache.org/jira/browse/LUCENE-6275
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Fix For: Trunk, 5.1
>
> Attachments: LUCENE-6275.patch
>
>
> Currently, this guy has his own little built-in algorithm, which doesn't seem
> optimal to me. It might be better if it reused ConjunctionDISI like
> ExactPhraseScorer does.
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