Doris Xin Hui Miao Aditya G. Parameswaran Neoklis Polyzotis Production Machine Learning Pipelines: Empirical Analysis and Optimization Opportunities. 2639-2652 2021 SIGMOD Conference https://doi.org/10.1145/3448016.3457566 conf/sigmod/2021 db/conf/sigmod/sigmod2021.html#XinMPP21