“Deep Generative Factorization For Speech Signal(ICASSP21)”版本间的差异
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Factorial DNF can retain the class structure corresponding to all the information factors. | Factorial DNF can retain the class structure corresponding to all the information factors. | ||
| − | The latent codes generated by various models are as below, plotted by t-SNE. | + | * The latent codes generated by various models are as below, plotted by t-SNE. |
In the first row (a) to (e), each color represents a phone; in the second row (f) to (j), each color represents a speaker. | In the first row (a) to (e), each color represents a phone; in the second row (f) to (j), each color represents a speaker. | ||
‘Phone DNF’ denotes DNF trained with phone labels; ‘Speaker DNF’ denotes DNF trained with speaker labels. | ‘Phone DNF’ denotes DNF trained with phone labels; ‘Speaker DNF’ denotes DNF trained with speaker labels. | ||
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:x' = f(f<sup>−1</sup>(x) + µ<sub>A,c<sub>2</sub></sub> − µ<sub>A,c<sub>1</sub></sub>) | :x' = f(f<sup>−1</sup>(x) + µ<sub>A,c<sub>2</sub></sub> − µ<sub>A,c<sub>1</sub></sub>) | ||
| − | MLP posteriors on the target class before and after phone/speaker manipulation are as below. | + | * MLP posteriors on the target class before and after phone/speaker manipulation are as below. |
‘f-DNF’ denotes factorial DNF. δ(·) denotes the difference on posteriors p(·|x') and p(·|x) | ‘f-DNF’ denotes factorial DNF. δ(·) denotes the difference on posteriors p(·|x') and p(·|x) | ||
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2020年10月23日 (五) 08:15的版本
目录
Introduction
This paper presented a speech information factorization method based on a novel deep generative model that we called factorial discriminative normalization flow. Qualitative and quantitative experimental results show that compared to all other models, the proposed factorial DNF can retain the class structure corresponding to multiple information factors, and changing one factor will cause little distortion on other factors. This demonstrates that factorial DNF can well factorize speech signal into different information factors.
Members
- Haoran Sun, Lantian Li, Yunqi Cai, Yang Zhang, Thomas Fang Zheng, Dong Wang
Publications
- Haoran Sun, Lantian Li, Yunqi Cai, Yang Zhang, Thomas Fang Zheng, Dong Wang, "Deep Generative Factorization For Speech Signal", 2020. pdf
Source Code
xx
Factorial DNF
xxx
Experiments
Data
xx
Encoding
VAE and NF almost lose the class structure;
DNF can retain the class structure of the information factor corresponding to the class labels in the model training;
Factorial DNF can retain the class structure corresponding to all the information factors.
- The latent codes generated by various models are as below, plotted by t-SNE.
In the first row (a) to (e), each color represents a phone; in the second row (f) to (j), each color represents a speaker.
‘Phone DNF’ denotes DNF trained with phone labels; ‘Speaker DNF’ denotes DNF trained with speaker labels.
Factor manipulation
- x' = f(f−1(x) + µA,c2 − µA,c1)
- MLP posteriors on the target class before and after phone/speaker manipulation are as below.
‘f-DNF’ denotes factorial DNF. δ(·) denotes the difference on posteriors p(·|x') and p(·|x)
Phone Manipulation Model | p(q2|x) | p(q2|x') | δ(q2) || p(s|x) | p(s|x') | δ(s) VAE | 0.013 | 0.312 | 0.299 || 0.612 | 0.454 | -0.158 NF | 0.013 | 0.410 | 0.397 || 0.612 | 0.489 | -0.123 DNF | 0.013 | 0.619 | 0.606 || 0.612 | 0.335 | -0.277 f-DNF | 0.013 | 0.636 | 0.623 || 0.612 | 0.536 | -0.076
Speaker Manipulation Model | p(s2|x) | p(s2|x') | δ(s2) || p(q|x) | p(q|x') | δ(q) VAE | 0.010 | 0.303 | 0.293 || 0.520 | 0.509 | -0.011 NF | 0.010 | 0.435 | 0.425 || 0.520 | 0.484 | -0.036 DNF | 0.010 | 0.700 | 0.690 || 0.520 | 0.349 | -0.171 f-DNF | 0.010 | 0.710 | 0.700 || 0.520 | 0.503 | -0.017
Future Work
- Test factorial DNF on larger datasets.
- Establish general theories for deep generative factorization.
