Merge pull request #205 from lynschinzer/master

Fix divided by zero issue in case of words are not found in dict.
11 years ago · b08c3f8ed7
1 changed files with 1 additions and 1 deletions
--- a/jieba/analyse/textrank.py
+++ b/jieba/analyse/textrank.py
@ -21,7 +21,7 @@ class UndirectWeightedGraph:
        ws = collections.defaultdict(float)
        outSum = collections.defaultdict(float)

-        wsdef = 1.0 / len(self.graph)
+        wsdef = 1.0 / (len(self.graph) or 1.0)
        for n, out in self.graph.items():
            ws[n] = wsdef
            outSum[n] = sum((e[2] for e in out), 0.0)