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相关论文: Simple is Better! Lightweight Data Augmentation fo…

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Data augmentation is a technique to generate new training data based on existing data. We evaluate the simple and cost-effective method of concatenating the original data examples to build new training instances. Continued training with…

计算与语言 · 计算机科学 2023-06-12 Tsz Kin Lam , Shigehiko Schamoni , Stefan Riezler

Supervised deep learning methods for segmentation require large amounts of labelled training data, without which they are prone to overfitting, not generalizing well to unseen images. In practice, obtaining a large number of annotations…

计算机视觉与模式识别 · 计算机科学 2019-03-01 Krishna Chaitanya , Neerav Karani , Christian Baumgartner , Olivio Donati , Anton Becker , Ender Konukoglu

Being able to recognize words as slots and detect the intent of an utterance has been a keen issue in natural language understanding. The existing works either treat slot filling and intent detection separately in a pipeline manner, or…

计算与语言 · 计算机科学 2019-07-09 Chenwei Zhang , Yaliang Li , Nan Du , Wei Fan , Philip S. Yu

Loss reweighting has shown significant benefits for machine unlearning with large language models (LLMs). However, their exact functionalities are left unclear and the optimal strategy remains an open question, thus impeding the…

机器学习 · 计算机科学 2025-05-29 Puning Yang , Qizhou Wang , Zhuo Huang , Tongliang Liu , Chengqi Zhang , Bo Han

In recent years, Recurrent Neural Networks (RNNs) based models have been applied to the Slot Filling problem of Spoken Language Understanding and achieved the state-of-the-art performances. In this paper, we investigate the effect of…

计算与语言 · 计算机科学 2018-12-17 Liang Qiu , Yuanyi Ding , Lei He

Previous attempts for data augmentation are designed manually, and the augmentation policies are dataset-specific. Recently, an automatic data augmentation approach, named AutoAugment, is proposed using reinforcement learning. AutoAugment…

机器学习 · 计算机科学 2018-11-13 Mingyang Geng , Kele Xu , Bo Ding , Huaimin Wang , Lei Zhang

An important issue impacting healthcare is a lack of available experts. Machine learning (ML) models could resolve this by aiding in diagnosing patients. However, creating datasets large enough to train these models is expensive. We…

计算与语言 · 计算机科学 2024-05-14 Chancellor R. Woolsey , Prakash Bisht , Joshua Rothman , Gondy Leroy

Instruction tuning has unlocked powerful capabilities in large language models (LLMs), effectively using combined datasets to develop generalpurpose chatbots. However, real-world applications often require a specialized suite of skills…

计算与语言 · 计算机科学 2024-06-14 Mengzhou Xia , Sadhika Malladi , Suchin Gururangan , Sanjeev Arora , Danqi Chen

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

Evidence suggests that networks trained on large datasets generalize well not solely because of the numerous training examples, but also class diversity which encourages learning of enriched features. This raises the question of whether…

Data augmentation methods enrich datasets with augmented data to improve the performance of neural networks. Recently, automated data augmentation methods have emerged, which automatically design augmentation strategies. Existing work…

计算机视觉与模式识别 · 计算机科学 2021-11-02 Misgana Negassi , Diane Wagner , Alexander Reiterer

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

Based on recent advances in natural language modeling and those in text generation capabilities, we propose a novel data augmentation method for text classification tasks. We use a powerful pre-trained neural network model to artificially…

This paper presents a novel data augmentation technique for text-to-speech (TTS), that allows to generate new (text, audio) training examples without requiring any additional data. Our goal is to increase diversity of text conditionings…

Categorical distributions are ubiquitous in machine learning, e.g., in classification, language models, and recommendation systems. However, when the number of possible outcomes is very large, using categorical distributions becomes…

机器学习 · 统计学 2018-06-08 Francisco J. R. Ruiz , Michalis K. Titsias , Adji B. Dieng , David M. Blei

In low resource settings, data augmentation strategies are commonly leveraged to improve performance. Numerous approaches have attempted document-level augmentation (e.g., text classification), but few studies have explored token-level…

计算与语言 · 计算机科学 2022-10-04 Arie Pratama Sutiono , Gus Hahn-Powell

In this paper we determine how multi-layer ensembling improves performance on multilingual intent classification. We develop a novel multi-layer ensembling approach that ensembles both different model initializations and different model…

计算与语言 · 计算机科学 2018-06-22 Charles Costello , Ruixi Lin , Vishwas Mruthyunjaya , Bettina Bolla , Charles Jankowski

Automated data augmentation has shown superior performance in image recognition. Existing works search for dataset-level augmentation policies without considering individual sample variations, which are likely to be sub-optimal. On the…

机器学习 · 计算机科学 2020-12-23 Fengwei Zhou , Jiawei Li , Chuanlong Xie , Fei Chen , Lanqing Hong , Rui Sun , Zhenguo Li

We present PPI++: a computationally lightweight methodology for estimation and inference based on a small labeled dataset and a typically much larger dataset of machine-learning predictions. The methods automatically adapt to the quality of…

机器学习 · 统计学 2024-03-27 Anastasios N. Angelopoulos , John C. Duchi , Tijana Zrnic

We introduce a data augmentation technique based on byte pair encoding and a BERT-like self-attention model to boost performance on spoken language understanding tasks. We compare and evaluate this method with a range of augmentation…

计算与语言 · 计算机科学 2021-04-19 Akhila Yerukola , Mason Bretan , Hongxia Jin