Improved merging weight

lib/tasks/tag_clustering.rake

@@ -75,7 +75,7 @@ namespace :tag do
     $N_LOS = 50
 
     # searched tag
-    $TAG = Tag.find_by_name("DNA")
+    $TAG = Tag.find_by_name("Sagitário")
 
     puts "\nStarted Calculating relevant results for tag #{$TAG.name}\n"
 
@@ -106,10 +106,11 @@ namespace :tag do
       puts ""
     end
 
-    # Relevancy Weight
-    $RW = 0.7
+    proportion = $TAG.taggings.size.to_f/$N_LOS
     # Search Weight
-    $SW = 1 - $RW
+    $SW = proportion > 0.5 ? 0.5 : proportion
+    # Relevancy Weight
+    $RW = 1 - $SW
 
     merged_los = merge(search_los, relevant_los[0])
 
@@ -134,18 +135,18 @@ namespace :tag do
     merged_los = []
 
     max = search_los.first.search_hit['_score']
-    # min = search_los[search_los.size-1].search_hit['_score']
-    min = 0
+    min = search_los[search_los.size-1].search_hit['_score']
+    # min = 0
 
     search_los.each do |slo|
-      slo.search_hit['_score'] = $SW*(slo.search_hit['_score']-min)/(max-min)
+      slo.search_hit['_score'] = $SW*(slo.search_hit['_score']*(1+$PAD)-min)/(max-min)
     end
 
     max = relevant_los.first[1]
-    # min = relevant_los.last[1]
+    min = relevant_los.last[1]
 
     relevant_los.each do |rlo|
-      rlo[1] = $RW*(rlo[1]-min)/(max-min)
+      rlo[1] = $RW*(rlo[1]*(1+$PAD)-min)/(max-min)
     end
 
     search_los.each do |slo|