Data and machine learning (ML) are crucial for enterprise operations. Enterprises store data in databases for management and use ML to gain business insights. However, there is a mismatch between the way ML expects data to be organized (a single table) and the way data is organized in databases (a join graph of multiple tables) and leads to inefficiencies when joining and materializing tables.

In this talk, you will see how we successfully address this issue. We introduce JoinBoost, a lightweight python library that trains tree models (such as random forests and gradient boosting) for join graphs in databases. JoinBoost acts as a query rewriting layer that is compatible with cloud databases, and eliminates the need for costly join materialization.

Talk by: Zachary Huang

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