New translations check_gm.py (Chinese Simplified)

lang/zh/notebooks/utils/check_gm.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Check basic properties of gram matrices.
+Created on Wed Sep 19 15:32:29 2018
+
+@author: ljia
+"""
+
+import numpy as np
+import matplotlib.pyplot as plt
+from numpy.linalg import eig
+
+# read gram matrices from file.
+results_dir = '../results/marginalizedkernel/myria'
+ds_name = 'ENZYMES'
+gmfile = np.load(results_dir + '/' + ds_name + '.gm.npz')
+#print('gm time: ', gmfile['gmtime'])
+# a list to store gram matrices for all param_grid_precomputed
+gram_matrices = gmfile['gms']
+# param_list_pre_revised = gmfile['params'] # list to store param grids precomputed ignoring the useless ones
+#y = gmfile['y'].tolist()
+#x = gram_matrices[0]
+
+for idx, x in enumerate(gram_matrices):
+    print()
+    print(idx)
+    plt.imshow(x)
+    plt.colorbar()
+    plt.savefig('../check_gm/' + ds_name + '.gm.eps', format='eps', dpi=300)
+#    print(np.transpose(x))
+    print('if symmetric: ', np.array_equal(x, np.transpose(x)))
+    
+    print('diag: ', np.diag(x))
+    print('sum diag < 0.1: ', np.sum(np.diag(x) < 0.1))
+    print('min, max diag: ', min(np.diag(x)), max(np.diag(x)))
+    print('min, max matrix: ', np.min(x), np.max(x))
+    for i in range(len(x)):
+        for j in range(len(x)):
+            if x[i][j] > 1 + 1e-9:
+                print(i, j)
+                raise Exception('value bigger than 1 with index', i, j)
+    print('mean x: ', np.mean(np.mean(x)))
+    
+    [lamnda, v] = eig(x)
+    print('min, max lambda: ', min(lamnda), max(lamnda))
+    if -1e-10 > min(lamnda):
+        raise Exception('wrong eigen values.')