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Correction to: Greedy sensor selection based on QR factorization

The Original Article was published on 04 December 2021

Correction to: EURASIP Journal on Advances in Signal Processing (2021) 2021:117 https://doi.org/10.1186/s13634-021-00824-5

The original publication of this article contained the following errors:

  1. 1.

    In the second paragraph of Section 4.1 (page 8 of 13)

    1. a.

      \(C_{tr} \approx \left( {N - i} \right)\left( {2p^{2} + 2i^{2} + 2i} \right)\) should be \(C_{tr} \approx \left( {N - i} \right)\left( {2pi + 2i^{2} } \right)\)

  2. 2.

    In the second paragraph of Section 4.1 (page 9 of 13)

    1. a.

      \(C_{{{\text{total}}}} = O\left( {\left| S \right|^{2} \left( {N\left| S \right| - p^{2} } \right)} \right)\) should be \(C_{{{\text{total}}}} = O\left( {Np\left| S \right|^{2} } \right)\)

  3. 3.

    Operation count for QRM in Table 1 (page 9 of 13)

    1. a.

      \(O\left( {\left| S \right|^{2} \left( {N\left| S \right| - p^{2} } \right)} \right)\) should be \(O\left( {Np\left| S \right|^{2} } \right)\)

  4. 4.

    Operation count for Proposed method in Table 1 (page 9 of 13)

    1. a.

      \(O\left( {\left| S \right|^{2} \left( {N\left| S \right| - p^{2} } \right)} \right)\) should be \(O\left( {Np\left| S \right|^{2} } \right)\)

These errors do not affect the conclusions. The original article has been updated.

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Correspondence to Yoon Hak Kim.

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Kim, Y.H. Correction to: Greedy sensor selection based on QR factorization. EURASIP J. Adv. Signal Process. 2022, 97 (2022). https://doi.org/10.1186/s13634-022-00923-x

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  • DOI: https://doi.org/10.1186/s13634-022-00923-x