Data mining, Knowledge Discovery, Measurement and Strategy

Changing assignment weights with time-based confounders

The Unofficial Google Data Science Blog

JULY 22, 2020

by ALEXANDER WAKIM Ramp-up and multi-armed bandits (MAB) are common strategies in online controlled experiments (OCE). These strategies involve changing assignment weights during an experiment. The first is a strategy called ramp-up and is advised by many experts in the field [1].

Experimentation

Experimentation Statistics Testing Strategy

ML internals: Synthetic Minority Oversampling (SMOTE) Technique

Domino Data Lab

MAY 20, 2021

Working with highly imbalanced data can be problematic in several aspects: Distorted performance metrics — In a highly imbalanced dataset, say a binary dataset with a class ratio of 98:2, an algorithm that always predicts the majority class and completely ignores the minority class will still be 98% correct. In their 2002 paper Chawla et al.

Machine Learning

Machine Learning Metrics Data mining Knowledge Discovery

Data Leaders Brief

Changing assignment weights with time-based confounders

ML internals: Synthetic Minority Oversampling (SMOTE) Technique

Webinars

Stay Connected