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The abundance of social media data has presented opportunities for accurately determining public and group-specific stances around policy proposals or controversial topics. In contrast with sentiment analysis which focuses on identifying…

计算与语言 · 计算机科学 2024-07-03 Nayoung Kim , David Mosallanezhad , Lu Cheng , Michelle V. Mancenido , Huan Liu

Traditional diagnostic methods like colonoscopy are invasive yet critical tools necessary for accurately diagnosing colorectal cancer (CRC). Detection of CRC at early stages is crucial for increasing patient survival rates. However,…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Xinliu Zhong , Leo Hwa Liang , Angela S. Koh , Yeo Si Yong

Network anomaly detection aims to find network elements (e.g., nodes, edges, subgraphs) with significantly different behaviors from the vast majority. It has a profound impact in a variety of applications ranging from finance, healthcare to…

机器学习 · 计算机科学 2021-02-23 Kaize Ding , Qinghai Zhou , Hanghang Tong , Huan Liu

The use of meta-learning and transfer learning in the task of few-shot image classification is a well researched area with many papers showcasing the advantages of transfer learning over meta-learning in cases where data is plentiful and…

计算机视觉与模式识别 · 计算机科学 2021-05-10 Joshua Ball

Stance detection aims to identify whether the author of a text is in favor of, against, or neutral to a given target. The main challenge of this task comes two-fold: few-shot learning resulting from the varying targets and the lack of…

计算与语言 · 计算机科学 2022-06-28 Yan Jiang , Jinhua Gao , Huawei Shen , Xueqi Cheng

Meta-learning has been proposed as a framework to address the challenging few-shot learning setting. The key idea is to leverage a large number of similar few-shot tasks in order to learn how to adapt a base-learner to a new task for which…

计算机视觉与模式识别 · 计算机科学 2019-10-10 Qianru Sun , Yaoyao Liu , Zhaozheng Chen , Tat-Seng Chua , Bernt Schiele

Few-shot learning aims at rapidly adapting to novel categories with only a handful of samples at test time, which has been predominantly tackled with the idea of meta-learning. However, meta-learning approaches essentially learn across a…

计算机视觉与模式识别 · 计算机科学 2021-07-21 Jinhai Yang , Hua Yang , Lin Chen

Few-shot segmentation (FSS) aims to segment unseen classes given only a few annotated samples. Existing methods suffer the problem of feature undermining, i.e. potential novel classes are treated as background during training phase. Our…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Lihe Yang , Wei Zhuo , Lei Qi , Yinghuan Shi , Yang Gao

Few-shot classification is a challenging problem that aims to learn a model that can adapt to unseen classes given a few labeled samples. Recent approaches pre-train a feature extractor, and then fine-tune for episodic meta-learning. Other…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Philip Chikontwe , Soopil Kim , Sang Hyun Park

Few-shot relation extraction aims to recognize novel relations with few labeled sentences in each relation. Previous metric-based few-shot relation extraction algorithms identify relationships by comparing the prototypes generated by the…

计算与语言 · 计算机科学 2023-05-12 Zhongju Yuan , Zhenkun Wang , Genghui Li

Few-shot and continual learning face two well-known challenges in GANs: overfitting and catastrophic forgetting. Learning new tasks results in catastrophic forgetting in deep learning models. In the case of a few-shot setting, the model…

机器学习 · 计算机科学 2024-10-22 Munsif Ali , Leonardo Rossi , Massimo Bertozzi

Metric-based few-shot fine-grained classification has shown promise due to its simplicity and efficiency. However, existing methods often overlook task-level special cases and struggle with accurate category description and irrelevant…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Ping Li , Hongbo Wang , Lei Lu

Few-shot learning is an important area of research. Conceptually, humans are readily able to understand new concepts given just a few examples, while in more pragmatic terms, limited-example training situations are common in practice.…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Hongyang Li , David Eigen , Samuel Dodge , Matthew Zeiler , Xiaogang Wang

Although not all bots are malicious, the vast majority of them are responsible for spreading misinformation and manipulating the public opinion about several issues, i.e., elections and many more. Therefore, the early detection of bots is…

计算与语言 · 计算机科学 2024-07-31 Loukas Ilias , Ioannis Michail Kazelidis , Dimitris Askounis

Few-shot learning problem focuses on recognizing unseen classes given a few labeled images. In recent effort, more attention is paid to fine-grained feature embedding, ignoring the relationship among different distance metrics. In this…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Jinxiang Lai , Siqian Yang , Guannan Jiang , Xi Wang , Yuxi Li , Zihui Jia , Xiaochen Chen , Jun Liu , Bin-Bin Gao , Wei Zhang , Yuan Xie , Chengjie Wang

Few-shot classification (FSC) is challenging due to the scarcity of labeled training data (e.g. only one labeled data point per class). Meta-learning has shown to achieve promising results by learning to initialize a classification model…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Xinzhe Li , Qianru Sun , Yaoyao Liu , Shibao Zheng , Qin Zhou , Tat-Seng Chua , Bernt Schiele

In this paper, we explore how to utilize pre-trained language model to perform few-shot text classification where only a few annotated examples are given for each class. Since using traditional cross-entropy loss to fine-tune language model…

计算与语言 · 计算机科学 2022-10-03 Liwen Sun , Jiawei Han

A family of recent successful approaches to few-shot learning relies on learning an embedding space in which predictions are made by computing similarities between examples. This corresponds to combining information between support and…

机器学习 · 计算机科学 2018-12-04 Hugo Prol , Vincent Dumoulin , Luis Herranz

The domain shift between the source and target domain is the main challenge in Cross-Domain Few-Shot Learning (CD-FSL). However, the target domain is absolutely unknown during the training on the source domain, which results in lacking…

计算机视觉与模式识别 · 计算机科学 2021-09-06 Xiyao Liu , Zhong Ji , Yanwei Pang , Zhongfei Zhang

Constructing new and more challenging tasksets is a fruitful methodology to analyse and understand few-shot classification methods. Unfortunately, existing approaches to building those tasksets are somewhat unsatisfactory: they either…

机器学习 · 计算机科学 2021-04-16 Sébastien M. R. Arnold , Fei Sha