Update Similarity.py

Similarity.py

@@ -2,8 +2,8 @@ import nltk
 from sentence_transformers import util
 
 class Similarity:
-    def __init__(self, model):
-        self.model = model
+    def __init__(self):
+        self.model = SentenceTransformer("lighteternal/stsb-xlm-r-greek-transfer")
         # Make sure nltk punkt tokenizer is downloaded
         nltk.download('punkt')