From 0bc48e82d0adfd9e42c463b65f3ee1929f4172f5 Mon Sep 17 00:00:00 2001
From: Matthew Honnibal <honnibal@gmail.com>
Date: Thu, 15 Oct 2015 02:44:23 +1100
Subject: [PATCH] * Add _handler to resolve Issue #123

---
 examples/_handler.py | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 examples/_handler.py

diff --git a/examples/_handler.py b/examples/_handler.py
new file mode 100644
index 000000000..cebfe8968
--- /dev/null
+++ b/examples/_handler.py
@@ -0,0 +1,37 @@
+# encoding: utf8
+from __future__ import unicode_literals, print_function
+
+from math import sqrt
+from numpy import dot
+from numpy.linalg import norm
+
+
+def handle_tweet(spacy, tweet_data, query):
+    text = tweet_data.get('text', u'')
+    # Twython returns either bytes or unicode, depending on tweet.
+    # ಠ_ಠ #APIshaming
+    try:
+        match_tweet(spacy, text, query)
+    except TypeError:
+        match_tweet(spacy, text.decode('utf8'), query)
+
+
+def match_tweet(spacy, text, query):
+    def get_vector(word):
+        return spacy.vocab[word].repvec
+
+    tweet = spacy(text)
+    tweet = [w.repvec for w in tweet if w.is_alpha and w.lower_ != query]
+    if tweet:
+        accept = map(get_vector, 'child classroom teach'.split())
+        reject = map(get_vector, 'mouth hands giveaway'.split())
+        
+        y = sum(max(cos(w1, w2), 0) for w1 in tweet for w2 in accept)
+        n = sum(max(cos(w1, w2), 0) for w1 in tweet for w2 in reject)
+        
+        if (y / (y + n)) >= 0.5 or True:
+            print(text)
+
+
+def cos(v1, v2):
+    return dot(v1, v2) / (norm(v1) * norm(v2))