fix feature bias error

Author: shixiaowen03

.idea/workspace.xml

@@ -859,7 +859,7 @@
     "\n",
     "\n",
     "\"\"\"fm part\"\"\"\n",
-    "fm_first_order = tf.nn.embedding_lookup(weights['feature_embeddings'],feat_index)\n",
+    "fm_first_order = tf.nn.embedding_lookup(weights['feature_bias'],feat_index)\n",
     "fm_first_order = tf.reduce_sum(tf.multiply(fm_first_order,reshaped_feat_value),2)\n",
     "\n",
     "summed_features_emb = tf.reduce_sum(embeddings,1)\n",