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Learning disentangled representations of data is a fundamental problem in artificial intelligence. Specifically, disentangled latent representations allow generative models to control and compose the disentangled factors in the synthesis…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Yotam Nitzan , Amit Bermano , Yangyan Li , Daniel Cohen-Or

Automatic speaker verification (ASV) systems are highly vulnerable to presentation attacks, also called spoofing attacks. Replay is among the simplest attacks to mount - yet difficult to detect reliably. The generalization failure of…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-24 Bhusan Chettri , Tomi Kinnunen , Emmanouil Benetos

In this paper, we propose a variational autoencoder with disentanglement priors, VAE-DPRIOR, for task-specific natural language generation with none or a handful of task-specific labeled examples. In order to tackle compositional…

Computation and Language · Computer Science 2022-11-01 Zhuang Li , Lizhen Qu , Qiongkai Xu , Tongtong Wu , Tianyang Zhan , Gholamreza Haffari

Diffusion-based representation learning has achieved substantial attention due to its promising capabilities in latent representation and sample generation. Recent studies have employed an auxiliary encoder to identify a corresponding…

Machine Learning · Computer Science 2025-03-11 Yeongmin Kim , Kwanghyeon Lee , Minsang Park , Byeonghu Na , Il-Chul Moon

In this paper we propose a Sequential Representation Quantization AutoEncoder (SeqRQ-AE) to learn from primarily unpaired audio data and produce sequences of representations very close to phoneme sequences of speech utterances. This is…

Computation and Language · Computer Science 2020-02-06 Alexander H. Liu , Tao Tu , Hung-yi Lee , Lin-shan Lee

Recently, deep representation learning has shown strong performance in multiple audio tasks. However, its use for learning spatial representations from multichannel audio is underexplored. We investigate the use of a pretraining stage based…

Currently end-to-end deep learning based open-domain dialogue systems remain black box models, making it easy to generate irrelevant contents with data-driven models. Specifically, latent variables are highly entangled with different…

Computation and Language · Computer Science 2022-07-27 Ye Wang , Jingbo Liao , Hong Yu , Guoyin Wang , Xiaoxia Zhang , Li Liu

Recently, a generative variational autoencoder (VAE) has been proposed for speech enhancement to model speech statistics. However, this approach only uses clean speech in the training phase, making the estimation particularly sensitive to…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-18 Huajian Fang , Guillaume Carbajal , Stefan Wermter , Timo Gerkmann

The increasing availability of electrocardiogram (ECG) data has motivated the use of data-driven models for automating various clinical tasks based on ECG data. The development of subject-specific models are limited by the cost and…

Machine Learning · Computer Science 2018-08-07 Prashnna K Gyawali , B. Milan Horacek , John L. Sapp , Linwei Wang

To achieve high-levels of autonomy, modern robots require the ability to detect and recover from anomalies and failures with minimal human supervision. Multi-modal sensor signals could provide more information for such anomaly detection…

Robotics · Computer Science 2020-12-17 Tianchen Ji , Sri Theja Vuppala , Girish Chowdhary , Katherine Driggs-Campbell

Generating versatile and appropriate synthetic speech requires control over the output expression separate from the spoken text. Important non-textual speech variation is seldom annotated, in which case output control must be learned in an…

Audio and Speech Processing · Electrical Eng. & Systems 2018-09-11 Gustav Eje Henter , Jaime Lorenzo-Trueba , Xin Wang , Junichi Yamagishi

We consider the problem of domain generalization, namely, how to learn representations given data from a set of domains that generalize to data from a previously unseen domain. We propose the Domain Invariant Variational Autoencoder (DIVA),…

Machine Learning · Statistics 2019-10-08 Maximilian Ilse , Jakub M. Tomczak , Christos Louizos , Max Welling

The recently proposed identifiable variational autoencoder (iVAE) framework provides a promising approach for learning latent independent components (ICs). iVAEs use auxiliary covariates to build an identifiable generation structure from…

Machine Learning · Statistics 2022-10-17 Young-geun Kim , Ying Liu , Xuexin Wei

Linking neural representations to linguistic factors is crucial in order to build and analyze NLP models interpretable by humans. Among these factors, syntactic roles (e.g. subjects, direct objects,$\dots$) and their realizations are…

Computation and Language · Computer Science 2022-06-23 Ghazi Felhi , Joseph Le Roux , Djamé Seddah

Recently, variational autoencoders have been successfully used to learn a probabilistic prior over speech signals, which is then used to perform speech enhancement. However, variational autoencoders are trained on clean speech only, which…

Audio and Speech Processing · Electrical Eng. & Systems 2021-05-18 Guillaume Carbajal , Julius Richter , Timo Gerkmann

We present a method that computes an interpretable representation of material appearance within a highly compact, disentangled latent space. This representation is learned in a self-supervised fashion using an adapted FactorVAE. We train…

Graphics · Computer Science 2025-07-18 Santiago Jimenez-Navarro , Julia Guerrero-Viu , Belen Masia

Facial expression analysis is central to understanding human behavior, yet existing coding systems such as the Facial Action Coding System (FACS) are constrained by limited coverage and costly manual annotation. In this work, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Minh Tran , Maksim Siniukov , Zhangyu Jin , Mohammad Soleymani

Inspired by recent advances in diffusion models, which are reminiscent of denoising autoencoders, we investigate whether they can acquire discriminative representations for classification via generative pre-training. This paper shows that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Weilai Xiang , Hongyu Yang , Di Huang , Yunhong Wang

State-of-the-art speaker recognition relays on models that need a large amount of training data. This models are successful in tasks like NIST SRE because there is sufficient data available. However, in real applications, we usually do not…

Machine Learning · Statistics 2015-11-25 Jesús Villalba

Unsupervised spoken term discovery consists of two tasks: finding the acoustic segment boundaries and labeling acoustically similar segments with the same labels. We perform segmentation based on the assumption that the frame feature…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-28 Saurabhchand Bhati , Jesús Villalba , Piotr Żelasko , Najim Dehak
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