fix isnowfy#15

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2013 isnowfy
+Copyright (c) 2013-2014 isnowfy
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

README.md

@@ -39,12 +39,11 @@ s = SnowNLP(text)
 
 s.keywords(3)	# [u'语言', u'自然', u'计算机']
 
-s.summary(3)	# [u'自然语言处理是一门融语言学、计算机科学、
+s.summary(3)	# [u'因而它是计算机科学的一部分',
+                #  u'自然语言处理是一门融语言学、计算机科学、
 				#	 数学于一体的科学',
 				#  u'自然语言处理是计算机科学领域与人工智能
-				#	 领域中的一个重要方向',
-                #  u'而在于研制能有效地实现自然语言通信的计
-                #    算机系统']
+				#	 领域中的一个重要方向']
 s.sentences
 
 s = SnowNLP([[u'这篇', u'文章'],

setup.py

@@ -45,7 +45,7 @@ def read(fname):
 
 setup(
     name='snownlp',
-    version='0.9.8.2',
+    version='0.9.9',
     description='Python library for processing Chinese text',
     author='isnowfy',
     url='https://github.com/isnowfy/snownlp',

snownlp/summary/textrank.py

@@ -19,10 +19,10 @@ def __init__(self, docs):
         self.top = []
 
     def solve(self):
-        for doc in self.docs:
+        for cnt, doc in enumerate(self.docs):
             scores = self.bm25.simall(doc)
             self.weight.append(scores)
-            self.weight_sum.append(sum(scores))
+            self.weight_sum.append(sum(scores)-scores[cnt])
             self.vertex.append(1.0)
         for _ in range(self.max_iter):
             m = []
@@ -32,7 +32,7 @@ def solve(self):
                 for j in range(self.D):
                     if j == i or self.weight_sum[j] == 0:
                         continue
-                    m[-1] += (self.d*self.weight[i][j]
+                    m[-1] += (self.d*self.weight[j][i]
                               / self.weight_sum[j]*self.vertex[j])
                 if abs(m[-1] - self.vertex[i]) > max_diff:
                     max_diff = abs(m[-1] - self.vertex[i])