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Exact(54)
The smaller amount of variance explained by the regression model in these conditions presumably reflects the minor amount of adaptation of the non-adapting neurons.
According to this assumption, the amount of adaptation for a given adapter and probe should be determined by the overlap between, and thus the selectivity of, their neural representations.
We think that the reduced performance improvements in the KPOW task are mainly resulted from the reason that because the adaptation is performed on a single utterance basis, the amount of adaptation data in each test utterance becomes not enough to fully adapt the much larger number of acoustic models in this large vocabulary task.
On the other hand, clean speech models can be fully adapted into acoustically matched speech models as far as the amount of adaptation data is provided enough in model adaptation.
The amount of adaptation data was five sentences for each person.
Supervised and unsupervised speaker adaptation using a varying amount of adaptation data were evaluated.
Similar(6)
The group lasso plays an important role in case of limited amounts of adaptation data, with the performance improvement attributed to its column-wise adaptive shrinkage property.
Unsupervised speaker adaptation was performed with varying amounts of adaptation data.
With large amounts of adaptation data, lasso seems to be more important than group lasso.
The use of MAP framework contributes to improved performance for small amounts of adaptation data.
Large amounts of adaptation data are required to obtain good performance.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com