Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: RIFLE: Robust Inference from Low Order Marginals   The ubiquity of missing values in real-world datasets poses a challenge for
statistical inference and can prevent similar datasets from being analyzed in
the same study, precluding many existing datasets from being used for new
analyses. While an extensive collection of packages and algorithms have been
developed for data imputation, the overwhelming majority perform poorly if
there are many missing values and low sample size, which are unfortunately
common characteristics in empirical data. Such low-accuracy estimations
adversely affect the performance of downstream statistical models. We develop a
statistical inference framework for predicting the target variable without
imputing missing values. Our framework, RIFLE (Robust InFerence via Low-order
moment Estimations), estimates low-order moments with corresponding confidence
intervals to learn a distributionally robust model. We specialize our framework
to linear regression and normal discriminant analysis, and we provide
convergence and performance guarantees. This framework can also be adapted to
impute missing data. In numerical experiments, we compare RIFLE with
state-of-the-art approaches (including MICE, Amelia, MissForest, KNN-imputer,
MIDA, and Mean Imputer). Our experiments demonstrate that RIFLE outperforms
other benchmark algorithms when the percentage of missing values is high and/or
when the number of data points is relatively small. RIFLE is publicly
available.

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The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg