Search Results for author: Masayoshi Mase

Found 6 papers, 5 papers with code

Model free variable importance for high dimensional data

1 code implementation15 Nov 2022 Naofumi Hama, Masayoshi Mase, Art B. Owen

Here we present some model-free methods that do not require access to the prediction function.

Variable importance without impossible data

no code implementations31 May 2022 Masayoshi Mase, Art B. Owen, Benjamin B. Seiler

The most popular methods for measuring importance of the variables in a black box prediction algorithm make use of synthetic inputs that combine predictor variables from multiple subjects.

Attribute Fairness

Deletion and Insertion Tests in Regression Models

1 code implementation25 May 2022 Naofumi Hama, Masayoshi Mase, Art B. Owen

We find an expression for the expected value of the AUC under a random ordering of inputs to $f$ and propose an alternative area above a straight line for the regression setting.

Additive models Explainable Artificial Intelligence (XAI) +1

What makes you unique?

1 code implementation17 May 2021 Benjamin B. Seiler, Masayoshi Mase, Art B. Owen

We use Shapley value to combine all of the reductions in log cardinality due to revealing a variable after some subset of the other variables has been revealed.

Cohort Shapley value for algorithmic fairness

1 code implementation15 May 2021 Masayoshi Mase, Art B. Owen, Benjamin B. Seiler

Cohort Shapley value is a model-free method of variable importance grounded in game theory that does not use any unobserved and potentially impossible feature combinations.

Attribute Fairness

Explaining black box decisions by Shapley cohort refinement

2 code implementations1 Nov 2019 Masayoshi Mase, Art B. Owen, Benjamin Seiler

Instead of changing the value of a predictor we include or exclude subjects similar to the target subject on that predictor to form a similarity cohort.

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