lib/vsm: default tfidf values are extracted from terms frequencies

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/vsm/vsm.nit b/lib/vsm/vsm.nit
index e7ebc2e..ad3d928 100644 (file)
--- a/lib/vsm/vsm.nit
+++ b/lib/vsm/vsm.nit
@@ -367,7 +367,7 @@ class Document
        # A high weight in tf–idf is reached by a high term frequency
        # (in the given document) and a low document frequency of the term in the
        # whole collection of documents
-       var tfidf = new Vector
+       var tfidf: Vector = terms_count is lazy
 
        redef fun to_s do return "{title}"
 end