{
  "protocol": "5 disjoint 1000-query TRAIN folds; final rule fixed to validated IDF^2 b=.1 coord .25 wl4 sem .3; only early lexical rescue IDF power and eta varied",
  "models": [
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      1.0,
      0.5
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      1.0
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      2.0
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      0.5
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    [
      2.0,
      1.0
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    [
      2.0,
      2.0
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}