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1. generate a file 'user_item_score': userid, item, score 2. spark-submit negative.py user_item_score itemFeature.txt predict_lambda5.txt 5 3. python pca_data.py predict_lambda5.txt itemFeature.txt: get the vectors for each item 4. generate training data: als method: 1. python generateData.py data/predict_4_lambda5.txt 1,5 619 python generateData.py data/predict_4_lambda5.txt 2,7 620 python generateData.py data/predict_4_lambda5.txt 3,4,6,8,10 621 python generateData.py data/predict_4_lambda5.txt 9 622 2. spark-submit als_update.py 620 data/618_4.txt out620.txt 5 #get the result ---------- spark-submit svm.py data/618_4.txt 3,4,6,8,10 als/out621.txt #compare two methods
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