diff --git a/example.sh b/example.sh
index fa38680..8df0698 100755
--- a/example.sh
+++ b/example.sh
@@ -5,24 +5,24 @@ cmake ..
 make 
 
 # Download the dataset
-wget -P ./data/gist ftp://ftp.irisa.fr/local/texmex/corpus/gist.tar.gz
-tar -xzvf ./data/gist/gist.tar.gz -C ./data/gist
+wget -P ./data/msong ftp://ftp.irisa.fr/local/texmex/corpus/msong.tar.gz
+tar -xzvf ./data/msong/msong.tar.gz -C ./data/msong
 
 # indexing and querying for symqg
-./bin/symqg_indexing ./data/gist/gist_base.fvecs 32 400 ./data/gist/symqg_32.index
+./bin/symqg_indexing ./data/msong/msong_base.fvecs 32 400 ./data/msong/symqg_32.index
 
-./bin/symqg_querying ./data/gist/symqg_32.index ./data/gist/gist_query.fvecs ./data/gist/gist_groundtruth.ivecs
+./bin/symqg_querying ./data/msong/symqg_32.index ./data/msong/msong_query.fvecs ./data/msong/msong_groundtruth.ivecs
 
 # indexing and querying for RabitQ+ with ivf, please refer to python/ivf.py for more information about clustering
-python ./python/ivf.py ./data/gist/gist_base.fvecs 4096 ./data/gist/gist_centroids_4096.fvecs ./data/gist/gist_clusterids_4096.ivecs
+python ./python/ivf.py ./data/msong/msong_base.fvecs 4096 ./data/msong/msong_centroids_4096.fvecs ./data/msong/msong_clusterids_4096.ivecs
 
-./bin/ivf_rabitq_indexing ./data/gist/gist_base.fvecs ./data/gist/gist_centroids_4096.fvecs ./data/gist/gist_clusterids_4096.ivecs 3 ./data/gist/ivf_4096_3.index
+./bin/ivf_rabitq_indexing ./data/msong/msong_base.fvecs ./data/msong/msong_centroids_4096.fvecs ./data/msong/msong_clusterids_4096.ivecs 3 ./data/msong/ivf_4096_3.index
 
-./bin/ivf_rabitq_querying ./data/gist/ivf_4096_3.index ./data/gist/gist_query.fvecs ./data/gist/gist_groundtruth.ivecs
+./bin/ivf_rabitq_querying ./data/msong/ivf_4096_3.index ./data/msong/msong_query.fvecs ./data/msong/msong_groundtruth.ivecs
 
 # indexing and querying for RabitQ+ with hnsw, do clustering first
-python ./python/ivf.py ./data/gist/gist_base.fvecs 16 ./data/gist/gist_centroids_16.fvecs ./data/gist/gist_clusterids_16.ivecs
+python ./python/ivf.py ./data/msong/msong_base.fvecs 16 ./data/msong/msong_centroids_16.fvecs ./data/msong/msong_clusterids_16.ivecs
 
-./bin/hnsw_rabitq_indexing ./data/gist/gist_base.fvecs ./data/gist/gist_centroids_16.fvecs ./data/gist/gist_clusterids_16.ivecs 16 200 5 ./data/gist/hnsw_5.index
+./bin/hnsw_rabitq_indexing ./data/msong/msong_base.fvecs ./data/msong/msong_centroids_16.fvecs ./data/msong/msong_clusterids_16.ivecs 16 200 5 ./data/msong/hnsw_5.index
 
-./bin/hnsw_rabitq_querying ./data/gist/hnsw_5.index ./data/gist/gist_query.fvecs ./data/gist/gist_groundtruth.ivecs
+./bin/hnsw_rabitq_querying ./data/msong/hnsw_5.index ./data/msong/msong_query.fvecs ./data/msong/msong_groundtruth.ivecs