优化推荐系统和冷启动

Change-Id: I93d3091f249f2396a25702e01eb8dd5a9e95e8bc
diff --git a/.gitignore b/.gitignore
index 3c68961..c319c04 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,7 @@
 torrents/
 appeals/
 migrations/
-front/node_modules
\ No newline at end of file
+front/node_modules
+recommend/user_seed_graph.txt
+recommend/model/__pycache__/
+recommend/utils/__pycache__/
\ No newline at end of file