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Data augmentation has been widely used to improve deep neural networks in many research fields, such as computer vision. However, less work has been done in the context of text, partially due to its discrete nature and the complexity of…

计算与语言 · 计算机科学 2021-01-12 Ping Yu , Ruiyi Zhang , Yang Zhao , Yizhe Zhang , Chunyuan Li , Changyou Chen

Text classification has become indispensable due to the rapid increase of text in digital form. Over the past three decades, efforts have been made to approach this task using various learning algorithms and statistical models based on…

机器学习 · 统计学 2018-06-11 Erica K. Shimomoto , Lincon S. Souza , Bernardo B. Gatto , Kazuhiro Fukui

Text embeddings, i.e. vector representations of entire texts, play an important role in many NLP applications, such as retrieval-augmented generation, clustering, or visualizing collections of texts for data exploration. Currently,…

计算与语言 · 计算机科学 2026-03-17 Rita González-Márquez , Philipp Berens , Dmitry Kobak

Contrastive Learning has emerged as a powerful representation learning method and facilitates various downstream tasks especially when supervised data is limited. How to construct efficient contrastive samples through data augmentation is…

计算与语言 · 计算机科学 2021-11-30 Yangkai Du , Tengfei Ma , Lingfei Wu , Fangli Xu , Xuhong Zhang , Bo Long , Shouling Ji

Simple yet effective data augmentation techniques have been proposed for sentence-level and sentence-pair natural language processing tasks. Inspired by these efforts, we design and compare data augmentation for named entity recognition,…

计算与语言 · 计算机科学 2020-10-23 Xiang Dai , Heike Adel

Natural disaster assessment relies on accurate and rapid access to information, with social media emerging as a valuable real-time source. However, existing datasets suffer from class imbalance and limited samples, making effective model…

计算机与社会 · 计算机科学 2025-11-04 Adrian-Dinu Urse , Dumitru-Clementin Cercel , Florin Pop

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

Text search based on lexical matching of keywords is not satisfactory due to polysemous and synonymous words. Semantic search that exploits word meanings, in general, improves search performance. In this paper, we survey WordNet-based…

计算与语言 · 计算机科学 2018-07-17 Vuong M. Ngo , Tru H. Cao , Tuan M. V. Le

We present a language independent, unsupervised method for building word embeddings using morphological expansion of text. Our model handles the problem of data sparsity and yields improved word embeddings by relying on training word…

计算与语言 · 计算机科学 2017-11-16 Syed Sarfaraz Akhtar , Arihant Gupta , Avijit Vajpayee , Arjit Srivastava , Manish Shrivastava

The absence of large labeled datasets remains a significant challenge in many application areas of deep learning. Researchers and practitioners typically resort to transfer learning and data augmentation to alleviate this issue. We study…

声音 · 计算机科学 2022-11-01 Paul Primus , Gerhard Widmer

Mixup is a popular data augmentation technique based on taking convex combinations of pairs of examples and their labels. This simple technique has been shown to substantially improve both the robustness and the generalization of the…

机器学习 · 计算机科学 2021-03-19 Linjun Zhang , Zhun Deng , Kenji Kawaguchi , Amirata Ghorbani , James Zou

Topic relevance between query and document is a very important part of social search, which can evaluate the degree of matching between document and user's requirement. In most social search scenarios such as Dianping, modeling search…

信息检索 · 计算机科学 2025-12-11 Yizhu Liu , Ran Tao , Shengyu Guo , Yifan Yang

Word co-occurrence networks have been employed to analyze texts both in the practical and theoretical scenarios. Despite the relative success in several applications, traditional co-occurrence networks fail in establishing links between…

计算与语言 · 计算机科学 2021-03-16 Laura V. C. Quispe , Jorge A. V. Tohalino , Diego R. Amancio

Data augmentation methods for neural machine translation are particularly useful when limited amount of training data is available, which is often the case when dealing with low-resource languages. We introduce a novel augmentation method,…

计算与语言 · 计算机科学 2023-11-07 Attila Nagy , Dorina Lakatos , Botond Barta , Judit Ács

In many domains such as medicine, training data is in short supply. In such cases, external knowledge is often helpful in building predictive models. We propose a novel method to incorporate publicly available domain expertise to build…

机器学习 · 计算机科学 2020-06-03 Yun Liu , Kun-Ta Chuang , Fu-Wen Liang , Huey-Jen Su , Collin M. Stultz , John V. Guttag

MixUp is a computer vision data augmentation technique that uses convex interpolations of input data and their labels to enhance model generalization during training. However, the application of MixUp to the natural language understanding…

计算与语言 · 计算机科学 2021-02-24 Wancong Zhang , Ieshan Vaidya

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 work presents a new and simple approach for fine-tuning pretrained word embeddings for text classification tasks. In this approach, the class in which a term appears, acts as an additional contextual variable during the fine tuning…

计算与语言 · 计算机科学 2019-12-17 Amr Al-Khatib , Samhaa R. El-Beltagy

Knowledge graphs such as DBpedia, Freebase or Wikidata always contain a taxonomic backbone that allows the arrangement and structuring of various concepts in accordance with the hypo-hypernym ("class-subclass") relationship. With the rapid…

This paper explores the use of text data augmentation techniques to enhance conflict and duplicate detection in software engineering tasks through sentence pair classification. The study adapts generic augmentation techniques such as…

软件工程 · 计算机科学 2023-05-17 Garima Malik , Mucahit Cevik , Ayşe Başar