On Learning Prediction-Focused Mixtures
On Learning Prediction-Focused Mixtures
复制标题
关于以预测为中心的混合学习
DOI:
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
F. Doshi
中科院分区:
文献类型:
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作者:
Abhishek Sharma;Catherine Zeng;Sanjana Narayanan;S. Parbhoo;F. Doshi
Probabilistic models help us encode latent structures that both model the data and are ideally also useful for specific downstream tasks. Among these, mixture models and their time-series counterparts, hidden Markov models, identify discrete components in the data. In this work, we focus on a constrained capacity setting, where we want to learn a model with relatively few components (e.g. for interpretability purposes). To maintain prediction performance, we introduce prediction-focused modeling for mixtures, which automatically selects the dimensions relevant to the prediction task. Our approach identifies relevant signal from the input, outperforms models that are not prediction-focused, and is easy to optimize; we also characterize when prediction-focused modeling can be expected to work.
影响因子:
120.7
作者:
Seymour, Christopher W.;Kennedy, Jason N.;Angus, Derek C.
通讯作者:
Angus, Derek C.
影响因子:
16.1
作者:
Orkin, Chloe;Oka, Shinichi;Spreen, William R.
通讯作者:
Spreen, William R.