Before revision:  We deploy CLRec in Taobao and conduct online A/B test on a traffic-intensive scenario, showing a large margin improvementon both performance and efficiency, as well as a dramatic reduction on the rich-get-richer phenomenon .
After revision:  We deploy CLRec in Taobao and conduct online A/B tests in Mobile Taobao demonstrate substantial improvement, including a dramatic reduction on the rich-get-richer phenomenon .