Higher-order sliced inverse regressions

Shanshan Ding, R. Dennis Cook

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


With the advancement of modern technology, array-valued data are often encountered in application. Such data can exhibit both high dimensionality and complex structures. Traditional methods for sufficient dimension reduction (SDR) are generally inefficient for array-valued data as they cannot adequately capture the underlying structure. In this article, we discuss recently developed higher-order approaches to SDR for regressions with matrix- or array-valued predictors, with a special focus on sliced inverse regressions. These methods can reduce an array-valued predictor's multiple dimensions simultaneously without losing much/any information for prediction and classification. We briefly discuss the implementation procedure for each method.

Original languageEnglish (US)
Pages (from-to)249-257
Number of pages9
JournalWiley Interdisciplinary Reviews: Computational Statistics
Issue number4
StatePublished - Jul 2015


  • Dimension folding
  • Sliced inverse regression
  • Sufficient dimension reduction
  • Tensor data


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