Search Results for author: Sojung Kim

Found 3 papers, 1 papers with code

Addressing Selection Bias in Computerized Adaptive Testing: A User-Wise Aggregate Influence Function Approach

1 code implementation23 Aug 2023 Soonwoo Kwon, Sojung Kim, SeungHyun Lee, Jin-Young Kim, Suyeong An, Kyuseok Kim

Indeed, when naively training the diagnostic model using CAT response data, we observe that item profiles deviate significantly from the ground-truth.

Selection bias

Multinomial Backtesting of Distortion Risk Measures

no code implementations17 Jan 2022 Sören Bettels, Sojung Kim, Stefan Weber

We extend the scope of risk measures for which backtesting models are available by proposing a multinomial backtesting method for general distortion risk measures.

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