Fixed similarity edge case

Future-House · Feb 10, 2023 · f343de8 · f343de8
1 parent f732ad3
commit f343de8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/paperqa/utils.py b/paperqa/utils.py
@@ -17,6 +17,8 @@ def maybe_is_text(s, thresh=2.5):
 
 
 def strings_similarity(s1, s2):
+    if len(s1) == 0 or len(s2) == 0:
+        return 0
     # break the strings into words
     s1 = set(s1.split())
     s2 = set(s2.split())