From be750ff96f4be1a1b14633ed7bd2c039b7fbf048 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <simianer@cl.uni-heidelberg.de>
Date: Mon, 3 Mar 2014 18:05:27 +0100
Subject: comments, rm dead code

---
 hopefear.rb | 67 ++++++++++++++++++++-----------------------------------------
 1 file changed, 22 insertions(+), 45 deletions(-)

(limited to 'hopefear.rb')

diff --git a/hopefear.rb b/hopefear.rb
index 918b71f..ef1fd43 100644
--- a/hopefear.rb
+++ b/hopefear.rb
@@ -19,10 +19,10 @@ def gethopefear_standard kbest, feedback
     hope = kbest[0]
     type1 = true
   else
-    hope = hope_and_fear(kbest, 'hope')
+    hope = hope_and_fear kbest, 'hope'
     type2 = true
   end
-  fear = hope_and_fear(kbest, 'fear')
+  fear = hope_and_fear kbest, 'fear'
   return hope, fear, false, type1, type2
 end
 
@@ -33,10 +33,12 @@ def gethopefear_fear_no_exec kbest, feedback, gold, max
     hope = kbest[0]
     type1 = true
   else
-    hope = hope_and_fear(kbest, 'hope')
+    hope = hope_and_fear kbest, 'hope'
     type2 = true
   end
-  kbest.sort{|x,y|(y.scores[:decoder]+y.scores[:psb])<=>(x.scores[:decoder]+x.scores[:psb])}.each_with_index { |k,i|
+  # sorted in descending order by max(decoder, psb), best ('hope') first
+  # select the 'best' translation that does not deliver the correct answer
+  kbest.sort{ |x,y| (y.scores[:decoder]+y.scores[:psb])<=>(x.scores[:decoder]+x.scores[:psb]) }.each_with_index { |k,i|
     break if i==max
     if !exec(k.s, gold, true)[0]
        fear = k
@@ -54,10 +56,11 @@ def gethopefear_fear_no_exec_skip kbest, feedback, gold
     hope = kbest[0]
     type1 = true
   else
-    hope = hope_and_fear(kbest, 'hope')
+    hope = hope_and_fear kbest, 'hope'
     type2 = true
   end
   fear = hope_and_fear(kbest, 'fear')
+  # skip example if fear gives the right answer
   skip = exec(fear.s, gold, true)[0]
   return hope, fear, skip, type1, type2
 end
@@ -65,11 +68,13 @@ end
 def gethopefear_fear_no_exec_hope_exec kbest, feedback, gold, max
   hope = fear = nil; hope_idx = 0
   type1 = type2 = false
-  sorted_kbest = kbest.sort{|x,y|(y.scores[:decoder]+y.scores[:psb])<=>(x.scores[:decoder]+x.scores[:psb])}
+  # sorted in descending order by max(decoder, psb), best ('hope') first
+  sorted_kbest = kbest.sort{ |x,y| (y.scores[:decoder]+y.scores[:psb])<=>(x.scores[:decoder]+x.scores[:psb]) }
   if feedback == true
     hope = kbest[0]
     type1 = true
   else
+    # select 'best' translation that correctly executes
     sorted_kbest.each_with_index { |k,i|
       next if i==0
       break if i==max
@@ -81,6 +86,7 @@ def gethopefear_fear_no_exec_hope_exec kbest, feedback, gold, max
     }
     type2 = true
   end
+  # select 'best' translation that does not correctly execute
   sorted_kbest.each_with_index { |k,i|
     break if i>(kbest.size-(hope_idx+1))||i==max
     if !exec(k.s, gold, true)[0]
@@ -88,6 +94,7 @@ def gethopefear_fear_no_exec_hope_exec kbest, feedback, gold, max
       break
     end
   }
+  # skip if hope or fear could no be found
   skip = true if !hope||!fear
   return hope, fear, skip, type1, type2
 end
@@ -99,15 +106,15 @@ def gethopefear_fear_no_exec_hope_exec_skip kbest, feedback, gold, max
     hope = kbest[0]
     type1 = true
   else
-    hope = hope_and_fear(kbest, 'hope')
+    hope = hope_and_fear kbest, 'hope'
     type2 = true
   end
-  fear = hope_and_fear(kbest, 'fear')
+  fear = hope_and_fear kbest, 'fear'
+  # skip if fear executes correctly or hope doesn't
   skip = exec(fear.s, gold, true)[0]||!exec(hope.s, gold, true)[0]
   return hope, fear, skip, type1, type2
 end
 
-
 def gethopefear_only_exec kbest, feedback, gold, max, own_reference=nil
   hope = fear = nil; hope_idx = 0; new_reference = nil
   type1 = type2 = false
@@ -119,6 +126,7 @@ def gethopefear_only_exec kbest, feedback, gold, max, own_reference=nil
     hope = own_reference
     type1 = true
   else
+    # search for first (by decoder score) translation that gives the correct answer
     kbest.each_with_index { |k,i|
       next if i==0
       break if i==max
@@ -130,40 +138,7 @@ def gethopefear_only_exec kbest, feedback, gold, max, own_reference=nil
     }
     type2 = true
   end
-  kbest.each_with_index { |k,i|
-    next if i==0||i==hope_idx
-    break if i==max
-    if !exec(k.s, gold, true)[0]
-      fear = k
-      break
-    end
-  }
-  skip = true if !hope||!fear
-  return hope, fear, skip, type1, type2, new_reference
-end
-
-def gethopefear_only_exec_simple kbest, feedback, gold, max, own_reference=nil
-  hope = fear = nil; hope_idx = 0; new_reference = nil
-  type1 = type2 = false
-  if feedback == true
-    hope = kbest[0]
-    new_reference = hope
-    type1 = true
-  elsif own_reference
-    hope = own_reference
-    type1 = true
-  else
-    kbest.each_with_index { |k,i|
-      next if i==0
-      break if i==max
-      if exec(k.s, gold, true)[0]
-        hope_idx = i
-        hope = k
-        break
-      end
-    }
-    type2 = true
-  end
+  # --"-- doesn't give the correct answer
   kbest.each_with_index { |k,i|
     next if i==0||i==hope_idx
     break if i==max
@@ -179,12 +154,14 @@ end
 def gethopefear_rampion kbest, reference
   hope = fear = nil
   type1 = type2 = false
+  # 1best is automatically hope if it matches reference
   if kbest[0].s == reference
     hope = kbest[0]
-    fear = hope_and_fear(kbest, 'fear')
+    fear = hope_and_fear kbest, 'fear'
     type1 = true
   else
-    hope = hope_and_fear(kbest, 'hope')
+    hope = hope_and_fear kbest, 'hope'
+    # 1best is automatically fear if it doesn't match reference 
     fear = kbest[0]
     type2 = true
   end
-- 
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