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Adding pipeline for tensorflow setup. Adding SVD++ , TimeSVD++ #12

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the tensorflow pipeline pull request was closed for a long time inactivity. This new one is for add the change the svd to svd++. Recommend not to merge. The training and test shared the same variable BATCH_SIZE,which results in the same effect of running against different test set every batchsize as adding pipeline. Accuracy is improving comparing with pipeline version.

ading native python parser for reading movielens data
putting tensorflow queue operator to reading data into queue and
process.

drawback is the running efficiency is dramatically dropped as the
shuffle_batch is a queue blocker. Also sess reading from queue takes
more time. furture investigation is needed for this.
@wangluyi1982 wangluyi1982 changed the title Adding pipeline for tensorflow setup. Adding SVD++ Adding pipeline for tensorflow setup. Adding SVD++ , TimeSVD++ Oct 28, 2017
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