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Few-shot object classification is the task of classifying objects in an image with limited number of examples as supervision. We propose a one-shot/few-shot classification model that can classify an object of any unseen class into a…

计算机视觉与模式识别 · 计算机科学 2023-10-13 Arpit Mittal , Harshil Jhaveri , Swapnil Mallick , Abhishek Ajmera

Few-shot named entity recognition (NER) has shown remarkable progress in identifying entities in low-resource domains. However, few-shot NER methods still struggle with out-of-domain (OOD) examples due to their reliance on manual labeling…

信息检索 · 计算机科学 2023-10-17 Zihan Wang , Ziqi Zhao , Zhumin Chen , Pengjie Ren , Maarten de Rijke , Zhaochun Ren

In computer vision applications, such as domain adaptation (DA), few shot learning (FSL) and zero-shot learning (ZSL), we encounter new objects and environments, for which insufficient examples exist to allow for training "models from…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Pengkai Zhu , Hanxiao Wang , Venkatesh Saligrama

Negative Prompting (NP) is widely utilized in diffusion models, particularly in text-to-image applications, to prevent the generation of undesired features. In this paper, we show that conventional NP is limited by the assumption of a…

计算机视觉与模式识别 · 计算机科学 2025-06-12 Felix Koulischer , Johannes Deleu , Gabriel Raya , Thomas Demeester , Luca Ambrogioni

Denoising diffusion probabilistic models (DDPMs) have been proven capable of synthesizing high-quality images with remarkable diversity when trained on large amounts of data. However, to our knowledge, few-shot image generation tasks have…

计算机视觉与模式识别 · 计算机科学 2023-03-08 Jingyuan Zhu , Huimin Ma , Jiansheng Chen , Jian Yuan

Recent works on zero-shot learning make use of side information such as visual attributes or natural language semantics to define the relations between output visual classes and then use these relationships to draw inference on new unseen…

计算机视觉与模式识别 · 计算机科学 2018-04-26 Saumya Jetley , Bernardino Romera-Paredes , Sadeep Jayasumana , Philip Torr

The objective of few-shot object detection (FSOD) is to detect novel objects with few training samples. The core challenge of this task is how to construct a generalized feature space for novel categories with limited data on the basis of…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Ruoyu Chen , Hua Zhang , Jingzhi Li , Li Liu , Zhen Huang , Xiaochun Cao

Few-shot 3D point cloud semantic segmentation aims to segment novel categories using a minimal number of annotated support samples. While existing prototype-based methods have shown promise, they are constrained by two critical challenges:…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Qianguang Zhao , Dongli Wang , Yan Zhou , Jianxun Li , Richard Irampa

Face anti-spoofing (FAS) plays a vital role in preventing face recognition systems from presentation attacks. Existing face anti-spoofing datasets lack diversity due to the insufficient identity and insignificant variance, which limits the…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Hangtong Wu , Dan Zen , Yibo Hu , Hailin Shi , Tao Mei

Few-shot object detection (FSOD) often suffers from base-class bias and unstable calibration when only a few novel samples are available. We propose Prototype-Driven Alignment (PDA), a lightweight, plug-in metric head for DeFRCN that…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Yushen Huang , Zhiming Wang

Few-shot learning (FSL) is popular due to its ability to adapt to novel classes. Compared with inductive few-shot learning, transductive models typically perform better as they leverage all samples of the query set. The two existing classes…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Hao Zhu , Piotr Koniusz

Generative dialogue models suffer badly from the generic response problem, limiting their applications to a few toy scenarios. Recently, an interesting approach, namely negative training, has been proposed to alleviate this problem by…

计算与语言 · 计算机科学 2022-05-06 Yiwei Li , Shaoxiong Feng , Bin Sun , Kan Li

Traditional classifiers are deployed under closed-set setting, with both training and test classes belong to the same set. However, real-world applications probably face the input of unknown categories, and the model will recognize them as…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Da-Wei Zhou , Han-Jia Ye , De-Chuan Zhan

Learning to classify unseen class samples at test time is popularly referred to as zero-shot learning (ZSL). If test samples can be from training (seen) as well as unseen classes, it is a more challenging problem due to the existence of…

机器学习 · 统计学 2019-09-11 Vinay Kumar Verma , Dhanajit Brahma , Piyush Rai

Few-shot segmentation (FSS) aims to segment unseen classes using a few annotated samples. Typically, a prototype representing the foreground class is extracted from annotated support image(s) and is matched to features representing each…

计算机视觉与模式识别 · 计算机科学 2022-12-23 Haoyan Guan , Michael Spratling

Denoising Diffusion Probabilistic Models (DDPMs) are powerful generative deep learning models that have been very successful at image generation, and, very recently, in path planning and control. In this paper, we investigate how to…

机器人学 · 计算机科学 2024-11-18 Michiel Nikken , Nicolò Botteghi , Wesley Roozing , Federico Califano

Open-set Recognition (OSR) aims to identify test samples whose classes are not seen during the training process. Recently, Unified Open-set Recognition (UOSR) has been proposed to reject not only unknown samples but also known but wrongly…

计算机视觉与模式识别 · 计算机科学 2023-02-09 Jun Cen , Di Luan , Shiwei Zhang , Yixuan Pei , Yingya Zhang , Deli Zhao , Shaojie Shen , Qifeng Chen

Generative neural samplers are probabilistic models that implement sampling using feedforward neural networks: they take a random input vector and produce a sample from a probability distribution defined by the network weights. These models…

机器学习 · 统计学 2016-06-03 Sebastian Nowozin , Botond Cseke , Ryota Tomioka

Most existing zero-shot learning methods consider the problem as a visual semantic embedding one. Given the demonstrated capability of Generative Adversarial Networks(GANs) to generate images, we instead leverage GANs to imagine unseen…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Yizhe Zhu , Mohamed Elhoseiny , Bingchen Liu , Xi Peng , Ahmed Elgammal

We tackle the Few-Shot Open-Set Recognition (FSOSR) problem, i.e. classifying instances among a set of classes for which we only have few labeled samples, while simultaneously detecting instances that do not belong to any known class.…