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Hema Koppula

3 accepted papers

2022

SYNT++: Utilizing Imperfect Synthetic Data to Improve Speech Recognition

ICASSP 2022accepted

With recent advances in speech synthesis, synthetic data is becoming a viable alternative to real data for training speech recognition models. However, machine learning with synthetic data is not trivial due to the gap between the synthetic and the real data distributions. Synthetic datasets may con…

Cited by 0SourceScholar
2022

Style Equalization: Unsupervised Learning of Controllable Generative Sequence Models

ICML 2022spotlight

Controllable generative sequence models with the capability to extract and replicate the style of specific examples enable many applications, including narrating audiobooks in different voices, auto-completing and auto-correcting written handwriting, and generating missing training samples for downs…

Cited by 26SourcePDFScholar
2021

SapAugment: Learning A Sample Adaptive Policy for Data Augmentation

ICASSP 2021accepted

Data augmentation methods usually apply the same augmentation (or a mix of them) to all the training samples. For example, to perturb data with noise, the noise is sampled from a Normal distribution with a fixed standard deviation, for all samples. We hypothesize that a hard sample with high trainin…

Cited by 0SourceScholar