Table 4 Methods for error correction (RQ3), along with its addressed errors, respective papers, and the total number of papers that proposed that method

Association rule mining

Missing data

[61, 62, 64, 66]

4

Clustering

Missing data

[65]

1

k-Nearest Neighbour

Missing data

[9]

1

Singular value decomposition

Missing data

[67]

1

Empirical mode decomposition

Noise

[76]

1

Savitzky–Golay filter and multivariate thresholding

Noise

[77]

1

Hybrid methods

 Clustering and probabilistic matrix factorization

Missing data

[63]

1