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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

Paraphrasing of offensive content is a better alternative to content removal and helps improve civility in a communication environment. Supervised paraphrasers; however, rely heavily on large quantities of labelled data to help preserve…

计算与语言 · 计算机科学 2024-06-11 Anirudh Som , Karan Sikka , Helen Gent , Ajay Divakaran , Andreas Kathol , Dimitra Vergyri

Data Augmentation (DA) -- enriching training data by adding synthetic samples -- is a technique widely adopted in Computer Vision (CV) and Natural Language Processing (NLP) tasks to improve models performance. Yet, DA has struggled to gain…

机器学习 · 计算机科学 2024-01-24 Chao Wang , Alessandro Finamore , Pietro Michiardi , Massimo Gallo , Dario Rossi

This paper presents a novel method to improve the robustness of foundation models to group-based biases. We propose a simple yet effective method, called DoubleCCA, that leverages random sentences and Canonical Correlation Analysis (CCA) to…

计算与语言 · 计算机科学 2024-11-26 Hong Liu , Yitong Lu

This study introduces a method to design a curriculum for machine-learning to maximize the efficiency during the training process of deep neural networks (DNNs) for speech emotion recognition. Previous studies in other machine-learning…

音频与语音处理 · 电气工程与系统科学 2022-03-17 Reza Lotfian , Carlos Busso

It is common knowledge that the quantity and quality of the training data play a significant role in the creation of a good machine learning model. In this paper, we take it one step further and demonstrate that the way the training…

音频与语音处理 · 电气工程与系统科学 2022-08-12 Georgios Karakasidis , Tamás Grósz , Mikko Kurimo

Recommendation systems have become indispensable in various online platforms, from e-commerce to streaming services. A fundamental challenge in this domain is learning effective embeddings from sparse user-item interactions. While…

信息检索 · 计算机科学 2025-10-13 Yansong Wang , Qihui Lin , Junjie Huang , Tao Jia

Knowledge editing is pivotal for efficiently updating the parametric memory of Large Language Models (LLMs), enabling them to function as evolving agents in dynamic environments. However, mainstream in-parameter knowledge editing approaches…

计算与语言 · 计算机科学 2026-05-21 Xiyu Liu , Zhengxiao Liu , Naibin Gu , Zheng Lin , Weiping Wang

We study the learning of a matching model for dialogue response selection. Motivated by the recent finding that models trained with random negative samples are not ideal in real-world scenarios, we propose a hierarchical curriculum learning…

计算与语言 · 计算机科学 2021-09-01 Yixuan Su , Deng Cai , Qingyu Zhou , Zibo Lin , Simon Baker , Yunbo Cao , Shuming Shi , Nigel Collier , Yan Wang

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

Learning scientific document representations can be substantially improved through contrastive learning objectives, where the challenge lies in creating positive and negative training samples that encode the desired similarity semantics.…

计算与语言 · 计算机科学 2022-10-20 Malte Ostendorff , Nils Rethmeier , Isabelle Augenstein , Bela Gipp , Georg Rehm

Timestep sampling $p(t)$ is a central design choice in Flow Matching models, yet common practice increasingly favors static middle-biased distributions (e.g., Logit-Normal). We show that this choice induces a speed--quality trade-off:…

机器学习 · 计算机科学 2026-03-16 Pengwei Sun

PCA-Net is a recently proposed neural operator architecture which combines principal component analysis (PCA) with neural networks to approximate operators between infinite-dimensional function spaces. The present work develops…

机器学习 · 计算机科学 2023-10-17 Samuel Lanthaler

Computer vision models suffer from a phenomenon known as catastrophic forgetting when learning novel concepts from continuously shifting training data. Typical solutions for this continual learning problem require extensive rehearsal of…

As the size of the datasets getting larger, accurately annotating such datasets is becoming more impractical due to the expensiveness on both time and economy. Therefore, crowd-sourcing has been widely adopted to alleviate the cost of…

机器学习 · 计算机科学 2024-02-21 Hansong Zhang , Shikun Li , Dan Zeng , Chenggang Yan , Shiming Ge

A sequence-to-sequence learning with neural networks has empirically proven to be an effective framework for Chinese Spelling Correction (CSC), which takes a sentence with some spelling errors as input and outputs the corrected one.…

计算与语言 · 计算机科学 2021-06-02 Chong Li , Cenyuan Zhang , Xiaoqing Zheng , Xuanjing Huang

Adaptive programming practice often relies on fixed libraries of worked examples and practice problems, which require substantial authoring effort and may not correspond well to the logical errors and partial solutions students produce…

人机交互 · 计算机科学 2026-05-06 Griffin Pitts , Muntasir Hoq , Peter Brusilovsky , Narges Norouzi , Arto Hellas , Juho Leinonen , Bita Akram

Most curriculum learning methods require an approach to sort the data samples by difficulty, which is often cumbersome to perform. In this work, we propose a novel curriculum learning approach termed Learning Rate Curriculum (LeRaC), which…

机器学习 · 计算机科学 2024-07-23 Florinel-Alin Croitoru , Nicolae-Catalin Ristea , Radu Tudor Ionescu , Nicu Sebe

Contrastive Learning (CL) performances as a rising approach to address the challenge of sparse and noisy recommendation data. Although having achieved promising results, most existing CL methods only perform either hand-crafted data or…

信息检索 · 计算机科学 2023-11-22 Xiuyuan Qin , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Fuzhen Zhuang , Guanfeng Liu , Victor Sheng

Incremental learning often encounter challenges such as overfitting to new data and catastrophic forgetting of old data. Existing methods can effectively extend the model for new tasks while freezing the parameters of the old model, but…

计算机视觉与模式识别 · 计算机科学 2025-12-29 Chuangxin Zhang , Guangfeng Lin , Enhui Zhao , Kaiyang Liao , Yajun Chen