wget http://snap.stanford.edu/data/amazon/productGraph/categoryFiles/reviews_Books.json.gz
wget http://snap.stanford.edu/data/amazon/productGraph/categoryFiles/meta_Books.json.gz
gunzip reviews_Books.json.gz
gunzip meta_Books.json.gz

python script/process_data.py meta_Books.json reviews_Books.json
python script/local_aggretor.py
python script/split_by_user.py
python script/generate_voc.py

python script/pick2txt.py
python script/item_map.py
python script/history_behavior_list.py
python script/generate_neg.py