A Comparative Study of Missing Feature Imputation Techniques

@inproceedings{Braun2012ACS,
  title={A Comparative Study of Missing Feature Imputation Techniques},
  author={Michael Braun and Friedrich Faubel and Dietrich Klakow},
  booktitle={ITG Conference on Speech Communication},
  year={2012}
}
This study presents a performance comparison of different missing feature imputation techniques under ideal as well as realistic conditions. The particular focus is on recent techniques such as Raj’s soft-decision bounded mean imputation approach and Gemmeke’s sparse imputation. In addition to experiments with oracle masks, we evaluate the usefulness of a number of different mask estimation algorithm. This includes the neg-energy criterion and a soft version of the Max-VQ algorithm. As we… CONTINUE READING

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