aligner-pytorch 0.0.9

Aligner - PyTorch

Aligner - PyTorch

Sequence alignement methods with helpers for PyTorch.

Install

pip install aligner-pytorch

Usage

MAS

MAS (Monotonic Alignment Search) from GlowTTS. This can be used to get the alignment of any (similarity) matrix. Implementation in optimized Cython.

from aligner_pytorch import mas 

sim = torch.rand(1, 4, 6) # [batch_size, m_rows, n_cols]
alignment = mas(sim)

"""
sim = tensor([[
    [0.2, 0.8, 0.9, 0.9, 0.9, 0.4],
    [0.6, 0.8, 0.9, 0.7, 0.1, 0.4],
    [1.0, 0.4, 0.4, 0.2, 1.0, 0.7],
    [0.1, 0.3, 0.1, 0.7, 0.6, 0.9]
]])

alignment = tensor([[
    [1, 0, 0, 0, 0, 0],
    [0, 1, 1, 1, 0, 0],
    [0, 0, 0, 0, 1, 0],
    [0, 0, 0, 0, 0, 1]
]], dtype=torch.int32)
"""

Citations

Monotonic Alignment Search

@misc{2005.11129,
Author = {Jaehyeon Kim and Sungwon Kim and Jungil Kong and Sungroh Yoon},
Title = {Glow-TTS: A Generative Flow for Text-to-Speech via Monotonic Alignment Search},
Year = {2020},
Eprint = {arXiv:2005.11129},
}