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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

Building conversational speech recognition systems for new languages is constrained by the availability of utterances that capture user-device interactions. Data collection is both expensive and limited by the speed of manual transcription.…

计算与语言 · 计算机科学 2019-12-03 Surabhi Punjabi , Harish Arsikere , Sri Garimella

Recently, crowd density estimation has received increasing attention. The main challenge for this task is to achieve high-quality manual annotations on a large amount of training data. To avoid reliance on such annotations, previous works…

计算机视觉与模式识别 · 计算机科学 2022-05-13 Shenjian Gong , Shanshan Zhang , Jian Yang , Dengxin Dai , Bernt Schiele

In this paper we study data augmentation for opcode sequence based Android malware detection. Data augmentation has been successfully used in many areas of deep-learning to significantly improve model performance. Typically, data…

密码学与安全 · 计算机科学 2022-04-01 Niall McLaughlin , Jesus Martinez del Rincon

Despite the rapid growth in model architecture, the scarcity of large parallel corpora remains the main bottleneck in Neural Machine Translation. Data augmentation is a technique that enhances the performance of data-hungry models by…

计算与语言 · 计算机科学 2023-11-14 Seokjin Oh , Su Ah Lee , Woohwan Jung

Data augmentation is an effective technique to improve the generalization of deep neural networks. However, previous data augmentation methods usually treat the augmented samples equally without considering their individual impacts on the…

机器学习 · 计算机科学 2021-03-17 Mingyang Yi , Lu Hou , Lifeng Shang , Xin Jiang , Qun Liu , Zhi-Ming Ma

Unsupervised domain adaptation (UDA) transfers knowledge from a label-rich source domain to a different but related fully-unlabeled target domain. To address the problem of domain shift, more and more UDA methods adopt pseudo labels of the…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Jie Wang , Xiao-Lei Zhang

Data augmentation is essential to achieve state-of-the-art performance in many deep learning applications. However, the most effective augmentation techniques become computationally prohibitive for even medium-sized datasets. To address…

机器学习 · 计算机科学 2023-07-21 Tian Yu Liu , Baharan Mirzasoleiman

Unsupervised domain adaptation (UDA) aims to transfer and adapt knowledge from a labeled source domain to an unlabeled target domain. Traditionally, subspace-based methods form an important class of solutions to this problem. Despite their…

机器学习 · 计算机科学 2022-01-07 Kowshik Thopalli , Jayaraman J Thiagarajan , Rushil Anirudh , Pavan K Turaga

The problem of adapting models from a source domain using data from any target domain of interest has gained prominence, thanks to the brittle generalization in deep neural networks. While several test-time adaptation techniques have…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Rakshith Subramanyam , Kowshik Thopalli , Spring Berman , Pavan Turaga , Jayaraman J. Thiagarajan

Recent literature in self-supervised has demonstrated significant progress in closing the gap between supervised and unsupervised methods in the image and text domains. These methods rely on domain-specific augmentations that are not…

机器学习 · 计算机科学 2021-09-02 Sajad Darabi , Shayan Fazeli , Ali Pazoki , Sriram Sankararaman , Majid Sarrafzadeh

Data augmentation is a major component of many machine learning methods with state-of-the-art performance. Common augmentation strategies work by drawing random samples from a space of transformations. Unfortunately, such sampling…

机器学习 · 计算机科学 2020-11-06 Calvin Luo , Hossein Mobahi , Samy Bengio

Intent classification is a major task in spoken language understanding (SLU). Since most models are built with pre-collected in-domain (IND) training utterances, their ability to detect unsupported out-of-domain (OOD) utterances has a…

计算与语言 · 计算机科学 2021-06-29 Yilin Shen , Yen-Chang Hsu , Avik Ray , Hongxia Jin

We address the Unsupervised Domain Adaptation (UDA) problem in image classification from a new perspective. In contrast to most existing works which either align the data distributions or learn domain-invariant features, we directly learn a…

计算机视觉与模式识别 · 计算机科学 2020-12-03 Qian Wang , Fanlin Meng , Toby P. Breckon

Dementia is a growing problem as our society ages, and detection methods are often invasive and expensive. Recent deep-learning techniques can offer a faster diagnosis and have shown promising results. However, they require large amounts of…

计算与语言 · 计算机科学 2022-07-19 Anna Hlédiková , Dominika Woszczyk , Alican Akman , Soteris Demetriou , Björn Schuller

Existing pretraining data mixing methods for large language models (LLMs) typically follow a domain-wise methodology, a top-down process that first determines domain weights and then performs uniform data sampling across each domain.…

计算与语言 · 计算机科学 2025-03-04 Xiangyu Xi , Deyang Kong , Jian Yang , Jiawei Yang , Zhengyu Chen , Wei Wang , Jingang Wang , Xunliang Cai , Shikun Zhang , Wei Ye

Supervised Fine-Tuning (SFT) is a critical step for enhancing the instruction-following capabilities of Large Language Models (LLMs) and adapting them to specialized domains. However, SFT often leads to a degradation of the model's general…

计算与语言 · 计算机科学 2025-07-01 Fei Ding , Baiqiao Wang

Unsupervised domain adaptation aims to leverage labeled data from a source domain to learn a classifier for an unlabeled target domain. Among its many variants, open set domain adaptation (OSDA) is perhaps the most challenging, as it…

计算机视觉与模式识别 · 计算机科学 2020-03-11 Dongliang Chang , Aneeshan Sain , Zhanyu Ma , Yi-Zhe Song , Jun Guo

Adversarial training suffers from robust overfitting, a phenomenon where the robust test accuracy starts to decrease during training. In this paper, we focus on both heuristics-driven and data-driven augmentations as a means to reduce…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Sylvestre-Alvise Rebuffi , Sven Gowal , Dan A. Calian , Florian Stimberg , Olivia Wiles , Timothy Mann

Self-supervised learning (SSL) has emerged as a promising alternative to create supervisory signals to real-world problems, avoiding the extensive cost of manual labeling. SSL is particularly attractive for unsupervised tasks such as…

机器学习 · 计算机科学 2023-07-31 Jaemin Yoo , Tiancheng Zhao , Leman Akoglu