Merge branch 'practical-nlp:master' into master

Author: jatinpapreja

Ch3/02_Bag_of_Words.ipynb

@@ -131,7 +131,7 @@
    "source": [
     "#BoW with binary vectors\n",
     "count_vect = CountVectorizer(binary=True)\n",
-    "bow_rep_bin = count_vect.fit_transform(processed_docs)\n",
+    "count_vect.fit(processed_docs)\n",
     "temp = count_vect.transform([\"dog and dog are friends\"])\n",
     "print(\"Bow representation for 'dog and dog are friends':\", temp.toarray())"
    ]

Ch4/03_Word2Vec_Example.ipynb

@@ -269,7 +269,7 @@
     "    feats = []\n",
     "    for tokens in list_of_lists:\n",
     "        feat_for_this =  np.zeros(DIMENSION)\n",
-    "        count_for_this = 0\n",
+    "        count_for_this = 0 + 1e-5 # to avoid divide-by-zero \n",
     "        for token in tokens:\n",
     "            if token in w2v_model:\n",
     "                feat_for_this += w2v_model[token]\n",