Catherine Williams, Head of Data Science at AppNexus, addresses an audience question at Data Driven NYC about how to organize and empower data science teams.
“The data science product engineering trifecta was just a very, very powerful combination. And when you were lacking one, it didn't, it was unstable.”
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More from Catherine Williams
AssertionNot checkable as stated
AppNexus operated about 1,500 global bidding server instances
“These bidding instances, there's actually about 1500 of them spread in data centers around the world”
Catherine WilliamsNov 20, 2014▶ 8:23Michael Rubenstein and Catherine Williams, App Nexus // Data Driven #31 // Nov 2014
Disclosure
AppNexus leveraged Google's trillion-word corpus for domain word-splitting algorithms
“The data here is the Google trillion word corpus, right, where they scrape the entire internet, look for the frequencies of all the different strings, including misspellings, right, and that basically gives you a probability of any given string being, like, a …”
Catherine WilliamsNov 20, 2014▶ 13:52Michael Rubenstein and Catherine Williams, App Nexus // Data Driven #31 // Nov 2014
AssertionNot checkable as stated
AppNexus processes 30 billion daily impressions on a 16-node Hadoop cluster
“We have a 16 node Hadoop cluster currently, and I have on my proposed budget for 2015, a 200 node Hadoop cluster so that we can really get our hands on all that raw data of the thirty billion impressions we're transacting daily.”
Catherine WilliamsNov 20, 2014▶ 14:48Michael Rubenstein and Catherine Williams, App Nexus // Data Driven #31 // Nov 2014
AssertionNot checkable as stated
AppNexus has no first-party data
“We don't have any first party data at all.”
Catherine WilliamsNov 20, 2014▶ 17:13Michael Rubenstein and Catherine Williams, App Nexus // Data Driven #31 // Nov 2014
Disclosure
AppNexus previously relied on human auditors to detect adult content
“We had a team of human auditors who would literally just go look at websites and determine whether or not they were porn.”
Catherine WilliamsNov 20, 2014▶ 11:02Michael Rubenstein and Catherine Williams, App Nexus // Data Driven #31 // Nov 2014
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