Search Results for author: John Hoffman

Found 7 papers, 4 papers with code

A Fast Template Periodogram for Detecting Non-sinusoidal Fixed-shape Signals in Irregularly Sampled Time Series

1 code implementation29 Jan 2021 John Hoffman, Jacob VanderPlas, Joel Hartman, Gaspar Bakos

The most efficient algorithms available for this purpose are those that exploit the $\mathcal{O}(N\log N)$ scaling of the Fast Fourier Transform (FFT).

Time Series Analysis Instrumentation and Methods for Astrophysics Applications

Online and Scalable Model Selection with Multi-Armed Bandits

no code implementations25 Jan 2021 Jiayi Xie, Michael Tashman, John Hoffman, Lee Winikor, Rouzbeh Gerami

Many online applications running on live traffic are powered by machine learning models, for which training, validation, and hyper-parameter tuning are conducted on historical data.

BIG-bench Machine Learning Model Selection +1

Dynamic Bidding Strategies with Multivariate Feedback Control for Multiple Goals in Display Advertising

no code implementations1 Jun 2020 Michael Tashman, Jiayi Xie, John Hoffman, Lee Winikor, Rouzbeh Gerami

This method generates a control score for each KPI, based on both the output of a PID controller module and a metric that quantifies the importance of each KPI for internal business needs.

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