Word.ws English Dictionary

sparsistency

sparsistency noun: 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.

Noun

sparsistency (uncountable)

  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.
    • 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.2015, Edouard Ollier, Vivian Viallon, “Regression modeling on stratified data: automatic and covariate-specific selection of the reference stratum with simple L_1-norm penalties”, in arXiv

Origin of sparsistency

Blend of sparse + consistency.

Questions about sparsistency

What does sparsistency mean?
Sparsistency means 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.
What part of speech is sparsistency?
Sparsistency is a noun.

Words near sparsistency in the dictionary

  1. sparsifies
  2. sparsiflorous
  3. sparsify
  4. sparsifying
  5. sparsing
  6. sparsistency
  7. sparsistent
  8. sparsities
  9. sparsity
  10. sparsomycin
  11. sparstolonin

Source and license

Adapted from Wiktionary: sparsistency (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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