From 2bab6faf21dcf8b300e3c7c0cc75f9e33497f498 Mon Sep 17 00:00:00 2001
From: Alex Moreo <alejandro.moreo@isti.cnr.it>
Date: Tue, 10 Dec 2019 16:47:30 +0100
Subject: [PATCH] divide by zero

---
 src/data/supervised.py | 1 +
 src/util/util.py       | 0
 2 files changed, 1 insertion(+)
 create mode 100644 src/util/util.py

diff --git a/src/data/supervised.py b/src/data/supervised.py
index 5f97e7f..4ed7f59 100755
--- a/src/data/supervised.py
+++ b/src/data/supervised.py
@@ -12,6 +12,7 @@ def zscores(x, axis=0): #scipy.stats.zscores does not avoid division by 0, which
 
 def supervised_embeddings_tfidf(X,Y):
     tfidf_norm = X.sum(axis=0)
+    tfidf_norm[tfidf_norm==0] = 1
     F = (X.T).dot(Y) / tfidf_norm.T
     return F
 
diff --git a/src/util/util.py b/src/util/util.py
new file mode 100644
index 0000000..e69de29