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Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP…

计算与语言 · 计算机科学 2025-10-16 Zaitian Wang , Jinghan Zhang , Xinhao Zhang , Kunpeng Liu , Pengfei Wang , Yuanchun Zhou

We propose an on-the-fly data augmentation method for automatic speech recognition (ASR) that uses alignment information to generate effective training samples. Our method, called Aligned Data Augmentation (ADA) for ASR, replaces…

计算与语言 · 计算机科学 2023-06-13 Tsz Kin Lam , Mayumi Ohta , Shigehiko Schamoni , Stefan Riezler

Sequence-to-Sequence (S2S) models recently started to show state-of-the-art performance for automatic speech recognition (ASR). With these large and deep models overfitting remains the largest problem, outweighing performance improvements…

音频与语音处理 · 电气工程与系统科学 2020-02-04 Thai-Son Nguyen , Sebastian Stueker , Jan Niehues , Alex Waibel

Data augmentation is an effective way to improve the performance of many neural text generation models. However, current data augmentation methods need to define or choose proper data mapping functions that map the original samples into the…

计算与语言 · 计算机科学 2021-05-31 Wei Bi , Huayang Li , Jiacheng Huang

Business Process Modeling projects often require formal process models as a central component. High costs associated with the creation of such formal process models motivated many different fields of research aimed at automated generation…

计算与语言 · 计算机科学 2024-04-12 Julian Neuberger , Leonie Doll , Benedict Engelmann , Lars Ackermann , Stefan Jablonski

Automated essay scoring is one of the most important problem in Natural Language Processing. It has been explored for a number of years, and it remains partially solved. In addition to its economic and educational usefulness, it presents…

计算与语言 · 计算机科学 2023-02-07 Kshitij Gupta

Most of the current speech data augmentation methods operate on either the raw waveform or the amplitude spectrum of speech. In this paper, we propose a novel speech data augmentation method called PhasePerturbation that operates…

声音 · 计算机科学 2023-12-15 Chengxi Lei , Satwinder Singh , Feng Hou , Xiaoyun Jia , Ruili Wang

Recently, SpecAugment, an augmentation scheme for automatic speech recognition that acts directly on the spectrogram of input utterances, has shown to be highly effective in enhancing the performance of end-to-end networks on public…

音频与语音处理 · 电气工程与系统科学 2019-12-12 Daniel S. Park , Yu Zhang , Chung-Cheng Chiu , Youzheng Chen , Bo Li , William Chan , Quoc V. Le , Yonghui Wu

Recent work has improved language models (LMs) remarkably by equipping them with a non-parametric memory component. However, most existing approaches only introduce mem-ories at testing time or represent them using a separately trained…

计算与语言 · 计算机科学 2022-11-30 Zexuan Zhong , Tao Lei , Danqi Chen

Neural cache language models (LMs) extend the idea of regular cache language models by making the cache probability dependent on the similarity between the current context and the context of the words in the cache. We make an extensive…

计算与语言 · 计算机科学 2018-09-25 Lyan Verwimp , Joris Pelemans , Hugo Van hamme , Patrick Wambacq

Data augmentation is an effective technique for improving the performance of machine learning models. However, it has not been explored as extensively in natural language processing (NLP) as it has in computer vision. In this paper, we…

计算与语言 · 计算机科学 2024-01-04 Himmet Toprak Kesgin , Mehmet Fatih Amasyali

Data augmentation is a powerful technique to improve performance in applications such as image and text classification tasks. Yet, there is little rigorous understanding of why and how various augmentations work. In this work, we consider a…

机器学习 · 计算机科学 2023-07-28 Sen Wu , Hongyang R. Zhang , Gregory Valiant , Christopher Ré

Text data augmentation is a widely used strategy for mitigating data sparsity in natural language processing (NLP), particularly in low-resource settings where limited samples hinder effective semantic modeling. While augmentation can…

计算与语言 · 计算机科学 2025-07-17 Payal Bhattad , Sai Manoj Pudukotai Dinakarrao , Anju Gupta

Data augmentation has shown its effectiveness in resolving the data-hungry problem and improving model's generalization ability. However, the quality of augmented data can be varied, especially compared with the raw/original data. To boost…

计算与语言 · 计算机科学 2024-09-27 Guanyi Mou , Yichuan Li , Kyumin Lee

Text encodings from automatic speech recognition (ASR) transcripts and audio representations have shown promise in speech emotion recognition (SER) ever since. Yet, it is challenging to explain the effect of each information stream on the…

Speech recognition systems often struggle with data domains that have not been included in the training. To address this, unsupervised domain adaptation has been explored with ensemble and multi-stage teacher-student training methods…

音频与语音处理 · 电气工程与系统科学 2026-04-14 Rehan Ahmad , Muhammad Umar Farooq , Qihang Feng , Thomas Hain

Text classification is a representative downstream task of natural language processing, and has exhibited excellent performance since the advent of pre-trained language models based on Transformer architecture. However, in pre-trained…

计算与语言 · 计算机科学 2022-04-07 Byeong-Cheol Jo , Tak-Sung Heo , Yeongjoon Park , Yongmin Yoo , Won Ik Cho , Kyungsun Kim

Error correction techniques have been used to refine the output sentences from automatic speech recognition (ASR) models and achieve a lower word error rate (WER). Previous works usually adopt end-to-end models and has strong dependency on…

Data augmentation reduces the generalization error by forcing a model to learn invariant representations given different transformations of the input image. In computer vision, on top of the standard image processing functions, data…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Rowel Atienza

We consider the problem of recognizing speech utterances spoken to a device which is generating a known sound waveform; for example, recognizing queries issued to a digital assistant which is generating responses to previous user inputs.…

音频与语音处理 · 电气工程与系统科学 2021-06-03 Nathan Howard , Alex Park , Turaj Zakizadeh Shabestary , Alexander Gruenstein , Rohit Prabhavalkar