From 0590b9e427079f88f20ecc5e090f17c0030a9441 Mon Sep 17 00:00:00 2001
From: Bob <bob@bob.bob>
Date: Tue, 22 Jan 2019 01:38:41 -0500
Subject: [PATCH] update

---
 nlp_class2/neural_network2.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/nlp_class2/neural_network2.py b/nlp_class2/neural_network2.py
index 1f0be410..573dd9e9 100644
--- a/nlp_class2/neural_network2.py
+++ b/nlp_class2/neural_network2.py
@@ -95,11 +95,14 @@ def softmax(a):
       # # for reference:
       # # original: W1 = W1 - lr * inputs.T.dot(dhidden) # VxN NxD --> VxD
 
+      # fastest way
+      np.subtract.at(W1, inputs, lr * dhidden)
+
       # test this
-      i = 0
-      for w in inputs: # don't include end token
-        W1[w] = W1[w] - lr * dhidden[i]
-        i += 1
+      # i = 0
+      # for w in inputs: # don't include end token
+      #   W1[w] = W1[w] - lr * dhidden[i]
+      #   i += 1
 
       # vs this
       # oh_inputs = np.zeros((n - 1, V))