Funnel Analysis with Apache Spark and Druid

Every day, millions of advertising campaigns are happening around the world. As campaign owners, measuring the ongoing campaign effectiveness (e.g “how many distinct users saw my online ad VS how many distinct users saw my online ad, clicked it and purchased my product?”) is super important.

However, this task (often referred to as “funnel analysis”) is not an easy task, especially if the chronological order of events matters. One way to mitigate this challenge is combining Apache Druid and Apache DataSketches, to provide fast analytics on large volumes of data.


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