activity
20192022
most citedMockingjay: Unsupervised Speech Representation Learning with Deep Bidirectional Transformer Encoders

352 citations · 849 across the 13 of their papers we have counts for

collaborators

13 papers

cs.SD2022★ 6 cited

Parallel Synthesis for Autoregressive Speech Generation

Po-chun Hsu, Da-rong Liu, Andy T. Liu +1

Autoregressive neural vocoders have achieved outstanding performance in speech synthesis tasks such as text-to-speech and voice conversion. An autoregressive vocoder predicts a sam…

cs.CL2022★ 3 cited

SUPERB-SG: Enhanced Speech processing Universal PERformance Benchmark for Semantic and Generative Capabilities

Hsiang-Sheng Tsai, Heng-Jui Chang, Wen-Chin Huang +14

Transfer learning has proven to be crucial in advancing the state of speech and natural language processing research in recent years. In speech, a model pre-trained by self-supervi…

cs.CL2022★ 27 cited

QaNER: Prompting Question Answering Models for Few-shot Named Entity Recognition

Andy T. Liu, Wei Xiao, Henghui Zhu +3

Recently, prompt-based learning for pre-trained language models has succeeded in few-shot Named Entity Recognition (NER) by exploiting prompts as task guidance to increase label ef…

eess.AS2021★ 3 cited

Don't speak too fast: The impact of data bias on self-supervised speech models

Yen Meng, Yi-Hui Chou, Andy T. Liu +1

Self-supervised Speech Models (S3Ms) have been proven successful in many speech downstream tasks, like ASR. However, how pre-training data affects S3Ms' downstream behavior remains…

cs.SD2021★ 5 cited

Improving the Adversarial Robustness for Speaker Verification by Self-Supervised Learning

Haibin Wu, Xu Li, Andy T. Liu +3

Previous works have shown that automatic speaker verification (ASV) is seriously vulnerable to malicious spoofing attacks, such as replay, synthetic speech, and recently emerged ad…

cs.CL2021★ 53 cited

SUPERB: Speech processing Universal PERformance Benchmark

Shu-wen Yang, Po-Han Chi, Yung-Sung Chuang +17

Self-supervised learning (SSL) has proven vital for advancing research in natural language processing (NLP) and computer vision (CV). The paradigm pretrains a shared model on large…

eess.AS2021★ 9 cited

Adversarial defense for automatic speaker verification by cascaded self-supervised learning models

Haibin Wu, Xu Li, Andy T. Liu +3

Automatic speaker verification (ASV) is one of the core technologies in biometric identification. With the ubiquitous usage of ASV systems in safety-critical applications, more and…

eess.AS2020★ 322 cited

TERA: Self-Supervised Learning of Transformer Encoder Representation for Speech

Andy T. Liu, Shang-Wen Li, Hung-yi Lee

We introduce a self-supervised speech pre-training method called TERA, which stands for Transformer Encoder Representations from Alteration. Recent approaches often learn by using…

cs.CL2020★ 4 cited

Understanding Self-Attention of Self-Supervised Audio Transformers

Shu-wen Yang, Andy T. Liu, Hung-yi Lee

Self-supervised Audio Transformers (SAT) enable great success in many downstream speech applications like ASR, but how they work has not been widely explored yet. In this work, we…

eess.AS2020★ 10 cited

Defense for Black-box Attacks on Anti-spoofing Models by Self-Supervised Learning

Haibin Wu, Andy T. Liu, Hung-yi Lee

High-performance anti-spoofing models for automatic speaker verification (ASV), have been widely used to protect ASV by identifying and filtering spoofing audio that is deliberatel…

cs.SD2019★ 23 cited

Towards Robust Neural Vocoding for Speech Generation: A Survey

Po-chun Hsu, Chun-hsuan Wang, Andy T. Liu +1

Recently, neural vocoders have been widely used in speech synthesis tasks, including text-to-speech and voice conversion. However, when encountering data distribution mismatch betw…

eess.AS2019★ 352 cited

Mockingjay: Unsupervised Speech Representation Learning with Deep Bidirectional Transformer Encoders

Andy T. Liu, Shu-wen Yang, Po-Han Chi +2

We present Mockingjay as a new speech representation learning approach, where bidirectional Transformer encoders are pre-trained on a large amount of unlabeled speech. Previous spe…

cs.CL2019★ 32 cited

Unsupervised End-to-End Learning of Discrete Linguistic Units for Voice Conversion

Andy T. Liu, Po-chun Hsu, Hung-yi Lee

We present an unsupervised end-to-end training scheme where we discover discrete subword units from speech without using any labels. The discrete subword units are learned under an…