Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+zetavg--tw-sinica-corpus-word-frequency-t1/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

zetavg--tw-sinica-corpus-word-frequency-t1/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f81aae8fc2febe2505dec137b6d59c7092dba87a0a4487dfaa4be8355bf4c86d
+size 4468736