Jack Jablonski
AI Success, DataRobot
About Jack Jablonski
Working with a portfolio of clients, as the AI Success Manager, Jack guides the entire customer journey from onboarding to mastery and then expansion.  DataRobot wants to transform every enterprise into and AI-Driven Enterprise, and as the AI Success Manager, Jack plays a pivotal role in that mission.
Speaker Sessions

Best Practices for Imbalanced Data and Partitioning

In this two-part learning session, we discuss best practices around data partitioning and working with imbalanced datasets.

Five-fold cross-validation is often the silver bullet for partitioning your validation dataset, but there are some dangerous caveats you have to be aware of to make sure that you’re building robust models. In this learning session (part 1) , we talk about those pitfalls and outline strategies for handling them.

Binary target variables are very common in data science use cases, many of which are severely imbalanced. When you’re building models for infrequent events, such as predicting fraud or identifying product failures, it’s important to watch out for imbalance in your data. (In part 2 of this learning session we discuss strategies for working with imbalanced datasets and provide some rules-of-thumb for these types of use cases.)

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Using Small Datasets to Build Models

As the global coronavirus pandemic is causing major disruptions to communities and the economy, many existing data science models struggle to adapt to these shifts due to a shortage of available data. learn more about:

Strategies to build a “cold start” model.
Checks to ensure you have meaningful, consistent signal from limited examples.
Diving deeper into model insights to verify meaningful model fit.

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