Sparsistency

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Let mathbf b be a vector and define the support operatorname supp( mathbf b)=i: mathbf bᵢ≠0 where mathbf bᵢ is the ith element of mathbf b. Let ̂mathbf b be an estimator for mathbf b. Then sparsistency is the property that the support of the estimator converges to the true support as the number of samples grows to infinity. uncountable

    "Its implementation can be done with available packages under a variety of models and, in the linear regression model, we show it is sparsistent under conditions similar to those ensuring sparsistency for an oracular version of the reference stratum strategy."

Example

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"Its implementation can be done with available packages under a variety of models and, in the linear regression model, we show it is sparsistent under conditions similar to those ensuring sparsistency for an oracular version of the reference stratum strategy."

Etymology

Blend of sparse + consistency.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.