From bd046a0cda7317f9dc2b68a33a0de5e21d7cbb16 Mon Sep 17 00:00:00 2001
From: "trevor.cohn" <trevor.cohn@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Mon, 12 Jul 2010 18:23:01 +0000
Subject: Added slash limits

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@224 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 gi/evaluation/evaluate_entropy.py   | 19 ++++++++++++-------
 gi/evaluation/extract_ccg_labels.py | 20 ++++++++++++++++++++
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/gi/evaluation/evaluate_entropy.py b/gi/evaluation/evaluate_entropy.py
index 88533544..55449c59 100644
--- a/gi/evaluation/evaluate_entropy.py
+++ b/gi/evaluation/evaluate_entropy.py
@@ -4,6 +4,10 @@ import sys, math, itertools
 
 ginfile = open(sys.argv[1])
 pinfile = open(sys.argv[2])
+if len(sys.argv) >= 4:
+    slash_threshold = int(sys.argv[3])
+else:
+    slash_threshold = 99999
 
 # evaluating: H(G | P) = sum_{g,p} p(g,p) log { p(p) / p(g,p) }
 #                      = sum_{g,p} c(g,p)/N { log c(p) - log N - log c(g,p) + log N }
@@ -24,16 +28,17 @@ for gline, pline in itertools.izip(ginfile, pinfile):
         gtag = gpart.split(':',1)[1]
         ptag = ppart.split(':',1)[1]
 
-        joint_frequencies.setdefault((gtag, ptag), 0)
-        joint_frequencies[gtag,ptag] += 1
+        if gtag.count('/') <= slash_threshold:
+            joint_frequencies.setdefault((gtag, ptag), 0)
+            joint_frequencies[gtag,ptag] += 1
 
-        predict_frequencies.setdefault(ptag, 0)
-        predict_frequencies[ptag] += 1
+            predict_frequencies.setdefault(ptag, 0)
+            predict_frequencies[ptag] += 1
 
-        gold_frequencies.setdefault(gtag, 0)
-        gold_frequencies[gtag] += 1
+            gold_frequencies.setdefault(gtag, 0)
+            gold_frequencies[gtag] += 1
 
-        N += 1
+            N += 1
 
 hg2p = 0
 hp2g = 0
diff --git a/gi/evaluation/extract_ccg_labels.py b/gi/evaluation/extract_ccg_labels.py
index 014e0399..5dd6eb65 100644
--- a/gi/evaluation/extract_ccg_labels.py
+++ b/gi/evaluation/extract_ccg_labels.py
@@ -60,12 +60,32 @@ def frontier(node, indices):
     else:
         return [node]
 
+def project_heads(node):
+    #print 'project_heads', node
+    is_head = node.data.tag.endswith('-HEAD')
+    if node.children:
+        found = 0
+        for child in node.children:
+            x = project_heads(child)
+            if x:
+                node.data.tag = x
+                found += 1
+        assert found == 1
+    elif is_head:
+        node.data.tag = node.data.tag[:-len('-HEAD')]
+
+    if is_head:
+        return node.data.tag
+    else:
+        return None
+
 for tline, eline in itertools.izip(tinfile, einfile):
     if tline.strip() != '(())':
         if tline.startswith('( '):
             tline = tline[2:-1].strip()
         tr = tree.parse_PST(tline)
         number_leaves(tr)
+        #project_heads(tr) # assumes Bikel-style head annotation for the input trees
     else:
         tr = None
     
-- 
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