Stable Conformal Prediction Sets
Stable Conformal Prediction Sets
复制标题
稳定的共形预测集
DOI:
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Eugène Ndiaye
中科院分区:
文献类型:
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作者:
Eugène Ndiaye
When one observes a sequence of variables $(x_1, y_1), ldots, (x_n, y_n)$, Conformal Prediction (CP) is a methodology that allows to estimate a confidence set for $y_{n+1}$ given $x_{n+1}$ by merely assuming that the distribution of the data is exchangeable. CP sets have guaranteed coverage for any finite population size $n$. While appealing, the computation of such a set turns out to be infeasible in general, e.g. when the unknown variable $y_{n+1}$ is continuous. The bottleneck is that it is based on a procedure that readjusts a prediction model on data where we replace the unknown target by all its possible values in order to select the most probable one. This requires computing an infinite number of models, which often makes it intractable. In this paper, we combine CP techniques with classical algorithmic stability bounds to derive a prediction set computable with a single model fit. We demonstrate that our proposed confidence set does not lose any coverage guarantees while avoiding the need for data splitting as currently done in the literature. We provide some numerical experiments to illustrate the tightness of our estimation when the sample size is sufficiently large, on both synthetic and real datasets.
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影响因子:
4.5
作者:
Bates, Stephen;Candes, Emmanuel;Sesia, Matteo
通讯作者:
Sesia, Matteo
DOI:
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发表时间:
2020-10
期刊:
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影响因子:
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作者:
Chen Xu;Yao Xie
通讯作者:
Chen Xu;Yao Xie
DOI:
10.1609/aaai.v37i6.25814
发表时间:
2023
期刊:
Proceedings of the AAAI Conference on Artificial Intelligence
影响因子:
--
作者:
Abad Martinez J
通讯作者:
Abad Martinez J
影响因子:
4.5
作者:
Barber, Rina Foygel;Candes, Emmanuel J.;Tibshirani, Ryan J.
通讯作者:
Tibshirani, Ryan J.