From 7615f6e6a028ee7f82cc2af44ed8f56ec32ae26c Mon Sep 17 00:00:00 2001
From: asilador <asilador@illinois.edu>
Date: Wed, 15 Feb 2017 15:02:31 -0600
Subject: [PATCH] Changed Beta value
---
Assignment 1/assignment1.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Assignment 1/assignment1.py b/Assignment 1/assignment1.py
index 2f8da3b..f321ef8 100644
--- a/Assignment 1/assignment1.py
+++ b/Assignment 1/assignment1.py
@@ -32,7 +32,7 @@ def armijo(alpha0,Q,b,c,D,m):
#print('alpha is ', alpha)
s = 1.0
sigma = 1.0
- beta = 1.0/2
+ beta = 1.0/3
while f(Q,b,c,x+np.transpose(beta**m*s*D)) < f(Q,b,c,x) + sigma*beta**m*s*(np.transpose(gradf(Q,b,x)))*np.transpose(D):
m+=1
#print('m is ', m)
@@ -56,7 +56,7 @@ def grad_opt(epsilon,x,count,alpha):
D = -1*np.transpose(gradf(Q,b,x))/np.linalg.norm(gradf(Q,b,x))
#print('D is ', D)
alpha = armijo(alpha,Q,b,c,D,m)
- print('alpha0 is ', alpha)
+ #print('alpha0 is ', alpha)
count += 1
if count%1000==0:
print 'f(x) is ', f(Q,b,c,x)
--
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