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Data augmentation is a powerful mechanism in equivariant machine learning, encouraging symmetry by training networks to produce consistent outputs under transformed inputs. Yet, effective augmentation typically requires the underlying…

机器学习 · 计算机科学 2026-02-13 Eduardo Santos-Escriche , Ya-Wei Eileen Lin , Stefanie Jegelka

We propose a Self-supervised Anomaly Detection technique, called SeMAnD, to detect geometric anomalies in Multimodal geospatial datasets. Geospatial data comprises of acquired and derived heterogeneous data modalities that we transform to…

人工智能 · 计算机科学 2023-09-28 Daria Reshetova , Swetava Ganguli , C. V. Krishnakumar Iyer , Vipul Pandey

Acoustic environments affect acoustic characteristics of sound to be recognized by physically interacting with sound wave propagation. Thus, training acoustic models for audio and speech tasks requires regularization on various acoustic…

音频与语音处理 · 电气工程与系统科学 2022-02-08 Hyeonuk Nam , Seong-Hu Kim , Yong-Hwa Park

Aspect term extraction aims to extract aspect terms from review texts as opinion targets for sentiment analysis. One of the big challenges with this task is the lack of sufficient annotated data. While data augmentation is potentially an…

计算与语言 · 计算机科学 2020-05-04 Kun Li , Chengbo Chen , Xiaojun Quan , Qing Ling , Yan Song

Despite the impressive capabilities of large language models across various tasks, their continued scaling is severely hampered not only by data scarcity but also by the performance degradation associated with excessive data repetition…

计算与语言 · 计算机科学 2025-05-20 Xintong Hao , Ruijie Zhu , Ge Zhang , Ke Shen , Chenggang Li

Sequential recommendation is an important task to predict the next-item to access based on a sequence of interacted items. Most existing works learn user preference as the transition pattern from the previous item to the next one, ignoring…

信息检索 · 计算机科学 2023-12-19 Yizhou Dang , Enneng Yang , Guibing Guo , Linying Jiang , Xingwei Wang , Xiaoxiao Xu , Qinghui Sun , Hong Liu

Oftentimes, patterns can be represented through different modalities. For example, leaf data can be in the form of images or contours. Handwritten characters can also be either online or offline. To exploit this fact, we propose the use of…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Shinnosuke Matsuo , Seiichi Uchida , Brian Kenji Iwana

Generalising vision-based manipulation policies to novel environments remains a challenging area with limited exploration. Current practices involve collecting data in one location, training imitation learning or reinforcement learning…

机器人学 · 计算机科学 2024-09-10 Eugene Teoh , Sumit Patidar , Xiao Ma , Stephen James

State-of-the-art automatic augmentation methods (e.g., AutoAugment and RandAugment) for visual recognition tasks diversify training data using a large set of augmentation operations. The range of magnitudes of many augmentation operations…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Sachin Mehta , Saeid Naderiparizi , Fartash Faghri , Maxwell Horton , Lailin Chen , Ali Farhadi , Oncel Tuzel , Mohammad Rastegari

Data augmentation methods usually apply the same augmentation (or a mix of them) to all the training samples. For example, to perturb data with noise, the noise is sampled from a Normal distribution with a fixed standard deviation, for all…

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

Recent research considers few-shot intent detection as a meta-learning problem: the model is learning to learn from a consecutive set of small tasks named episodes. In this work, we propose ProtAugment, a meta-learning algorithm for short…

计算与语言 · 计算机科学 2021-05-28 Thomas Dopierre , Christophe Gravier , Wilfried Logerais

Data augmentation refers to the process of applying a series of transformations or expansions to original data to generate new samples, thereby increasing the diversity and quantity of the data, effectively improving the performance and…

计算机视觉与模式识别 · 计算机科学 2024-06-11 Hao Zhang , Shuaijie Zhang , Renbin Zou

Deep features are a cornerstone of computer vision research, capturing image semantics and enabling the community to solve downstream tasks even in the zero- or few-shot regime. However, these features often lack the spatial resolution to…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Stephanie Fu , Mark Hamilton , Laura Brandt , Axel Feldman , Zhoutong Zhang , William T. Freeman

Data augmentation (DA) is a crucial technique for enhancing the sample efficiency of visual reinforcement learning (RL) algorithms. Notably, employing simple observation transformations alone can yield outstanding performance without extra…

机器学习 · 计算机科学 2023-10-30 Guozheng Ma , Linrui Zhang , Haoyu Wang , Lu Li , Zilin Wang , Zhen Wang , Li Shen , Xueqian Wang , Dacheng Tao

To generate accurate and reliable predictions, modern AI systems need to combine data from multiple modalities, such as text, images, audio, spreadsheets, and time series. Multi-modal data introduces new opportunities and challenges for…

机器学习 · 计算机科学 2026-02-10 Arthur Hoarau , Benjamin Quost , Sébastien Destercke , Willem Waegeman

Meta-learning methods typically follow a two-loop framework, where each loop potentially suffers from notorious overfitting, hindering rapid adaptation and generalization to new tasks. Existing schemes solve it by enhancing the…

机器学习 · 计算机科学 2023-06-16 Ren Wang , Haoliang Sun , Qi Wei , Xiushan Nie , Yuling Ma , Yilong Yin

While contrastive learning greatly advances the representation of sentence embeddings, it is still limited by the size of the existing sentence datasets. In this paper, we present TransAug (Translate as Augmentation), which provide the…

计算与语言 · 计算机科学 2025-06-04 Jue Wang

Unsupervised commonsense question answering is appealing since it does not rely on any labeled task data. Among existing work, a popular solution is to use pre-trained language models to score candidate choices directly conditioned on the…

计算与语言 · 计算机科学 2021-06-01 Yilin Niu , Fei Huang , Jiaming Liang , Wenkai Chen , Xiaoyan Zhu , Minlie Huang

By generating new yet effective data, data augmentation has become a promising method to mitigate the data sparsity problem in sequential recommendation. Existing works focus on augmenting the original data but rarely explore the issue of…

信息检索 · 计算机科学 2024-12-24 Yizhou Dang , Jiahui Zhang , Yuting Liu , Enneng Yang , Yuliang Liang , Guibing Guo , Jianzhe Zhao , Xingwei Wang