# Sparse Index Tracking With K-Sparsity or ϵ-Deviation Constraint via ℓ<sub>0</sub>-Norm Minimization

> Research article (IEEE Transactions on Neural Networks and Learning Systems, 2022) · cited 31× · AI/ML

**Wikidata**: [openalex:W4280544736](https://www.wikidata.org/wiki/openalex:W4280544736)  
**Source**: https://4ort.xyz/entity/sparse-index-tracking-with-k-sparsity-or-deviation-constraint-via-l-sub-0-sub-norm-minimization