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The training of deep-learning-based text classification models relies heavily on a huge amount of annotation data, which is difficult to obtain. When the labeled data is scarce, models tend to struggle to achieve satisfactory performance.…

计算与语言 · 计算机科学 2020-04-07 Dianbo Sui , Yubo Chen , Binjie Mao , Delai Qiu , Kang Liu , Jun Zhao

This paper presents a novel method for rare event detection from an image pair with class-imbalanced datasets. A straightforward approach for event detection tasks is to train a detection network from a large-scale dataset in an end-to-end…

计算机视觉与模式识别 · 计算机科学 2018-12-05 Ryuhei Hamaguchi , Ken Sakurada , Ryosuke Nakamura

We compare various forms of prompts to represent event types and develop a unified framework to incorporate the event type specific prompts for supervised, few-shot, and zero-shot event detection. The experimental results demonstrate that a…

计算与语言 · 计算机科学 2022-04-18 Sijia Wang , Mo Yu , Lifu Huang

We consider a practical scenario of machine unlearning to erase a target dataset, which causes unexpected behavior from the trained model. The target dataset is often assumed to be fully identifiable in a standard unlearning scenario. Such…

机器学习 · 计算机科学 2023-03-15 Youngsik Yoon , Jinhwan Nam , Hyojeong Yun , Jaeho Lee , Dongwoo Kim , Jungseul Ok

Few-shot algorithms aim at learning new tasks provided only a handful of training examples. In this work we investigate few-shot learning in the setting where the data points are sequences of tokens and propose an efficient learning…

机器学习 · 计算机科学 2020-12-18 Lajanugen Logeswaran , Ann Lee , Myle Ott , Honglak Lee , Marc'Aurelio Ranzato , Arthur Szlam

Few-shot learning focuses on learning a new visual concept with very limited labelled examples. A successful approach to tackle this problem is to compare the similarity between examples in a learned metric space based on convolutional…

机器学习 · 计算机科学 2024-02-06 Heda Song , Mercedes Torres Torres , Ender Özcan , Isaac Triguero

Although prototypical network (ProtoNet) has proved to be an effective method for few-shot sound event detection, two problems still exist. Firstly, the small-scaled support set is insufficient so that the class prototypes may not represent…

声音 · 计算机科学 2022-06-07 Dongchao Yang , Helin Wang , Yuexian Zou , Zhongjie Ye , Wenwu Wang

Time-series forecasting is important for many applications. Forecasting models are usually trained using time-series data in a specific target task. However, sufficient data in the target task might be unavailable, which leads to…

机器学习 · 统计学 2020-10-01 Tomoharu Iwata , Atsutoshi Kumagai

Few-shot classification addresses the challenge of classifying examples given only limited labeled data. A powerful approach is to go beyond data augmentation, towards data synthesis. However, most of data augmentation/synthesis methods for…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Michalis Lazarou , Yannis Avrithis , Tania Stathaki

Few-shot learning is a fundamental and challenging problem since it requires recognizing novel categories from only a few examples. The objects for recognition have multiple variants and can locate anywhere in images. Directly comparing…

计算机视觉与模式识别 · 计算机科学 2022-01-10 Congqi Cao , Yanning Zhang

Learning with limited data is a key challenge for visual recognition. Many few-shot learning methods address this challenge by learning an instance embedding function from seen classes and apply the function to instances from unseen classes…

机器学习 · 计算机科学 2021-06-15 Han-Jia Ye , Hexiang Hu , De-Chuan Zhan , Fei Sha

Few-shot classification aims to learn to classify new object categories well using only a few labeled examples. Transferring feature representations from other models is a popular approach for solving few-shot classification problems. In…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Chun-Nam Yu , Yi Xie

Few-shot Learning (FSL) aims to classify new concepts from a small number of examples. While there have been an increasing amount of work on few-shot object classification in the last few years, most current approaches are limited to images…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Mathieu Pagé Fortin , Brahim Chaib-draa

We consider the few-shot classification task with an unbalanced dataset, in which some classes have sufficient training samples while other classes only have limited training samples. Recent works have proposed to solve this task by…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Vivek Roy , Yan Xu , Yu-Xiong Wang , Kris Kitani , Ruslan Salakhutdinov , Martial Hebert

Few-shot learning with $N$-way $K$-shot scheme is an open challenge in machine learning. Many metric-based approaches have been proposed to tackle this problem, e.g., the Matching Networks and CLIP-Adapter. Despite that these approaches…

机器学习 · 计算机科学 2024-05-08 Guoliang Lin , Yongheng Xu , Hanjiang Lai , Jian Yin

Few-shot learning is often motivated by the ability of humans to learn new tasks from few examples. However, standard few-shot classification benchmarks assume that the representation is learned on a limited amount of base class data,…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Yann Lifchitz , Yannis Avrithis , Sylvaine Picard

Event detection is one of the fundamental tasks in information extraction and knowledge graph. However, a realistic event detection system often needs to deal with new event classes constantly. These new classes usually have only a few…

计算与语言 · 计算机科学 2024-04-03 Kailin Zhao , Xiaolong Jin , Long Bai , Jiafeng Guo , Xueqi Cheng

Deep learning has been widely used recently for sound event detection and classification. Its success is linked to the availability of sufficiently large datasets, possibly with corresponding annotations when supervised learning is…

声音 · 计算机科学 2023-09-06 Ilyass Moummad , Romain Serizel , Nicolas Farrugia

Different from static images, videos contain additional temporal and spatial information for better object detection. However, it is costly to obtain a large number of videos with bounding box annotations that are required for supervised…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Zhongjie Yu , Gaoang Wang , Lin Chen , Sebastian Raschka , Jiebo Luo

Few-shot classification consists of a training phase where a model is learned on a relatively large dataset and an adaptation phase where the learned model is adapted to previously-unseen tasks with limited labeled samples. In this paper,…

机器学习 · 计算机科学 2023-06-02 Xu Luo , Hao Wu , Ji Zhang , Lianli Gao , Jing Xu , Jingkuan Song