MongoDB aggregation pipelines for data cleansing

An exploration of MongoDB transformations for imprecise data As part of the DATA 320 class at Bellevue College , I provide students with a flawed and messy movie box office data set to load into MongoDB. This data set is intended to mimic real world conditions: it isn’t quite formatted right. There are typos. Multiple fields worth of data are stored in some columns (AKA a First Normal Form problem…