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Zero-shot learning (ZSL) refers to the problem of learning to classify instances from the novel classes (unseen) that are absent in the training set (seen). Most ZSL methods infer the correlation between visual features and attributes to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Zhe Liu , Yun Li , Lina Yao , Xianzhi Wang , Guodong Long

Pretrained language models (PLMs) have demonstrated remarkable performance in various natural language processing tasks: Unidirectional PLMs (e.g., GPT) are well known for their superior text generation capabilities; bidirectional PLMs…

Computation and Language · Computer Science 2022-10-13 Yu Meng , Jiaxin Huang , Yu Zhang , Jiawei Han

Large language models (LLMs) are very proficient text generators. We leverage this capability of LLMs to generate task-specific data via zero-shot prompting and promote cross-lingual transfer for low-resource target languages. Given…

Computation and Language · Computer Science 2024-07-16 Barah Fazili , Ashish Sunil Agrawal , Preethi Jyothi

Synthetic data generation is an important application of machine learning in the field of medical imaging. While existing approaches have successfully applied fine-tuned diffusion models for synthesizing medical images, we explore potential…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Lakshmi Nair

We present a synthetic data approach for instruction-tuning large language models (LLMs) for low-resource languages in a data-efficient manner, specifically focusing on Thai. We identify three key properties that contribute to the…

Computation and Language · Computer Science 2024-11-26 Parinthapat Pengpun , Can Udomcharoenchaikit , Weerayut Buaphet , Peerat Limkonchotiwat

Contemporary state-of-the-art approaches to Zero-Shot Learning (ZSL) train generative nets to synthesize examples conditioned on the provided metadata. Thereafter, classifiers are trained on these synthetic data in a supervised manner. In…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Georgios Chochlakis , Efthymios Georgiou , Alexandros Potamianos

The in-context learning ability of large language models (LLMs) enables them to generalize to novel downstream tasks with relatively few labeled examples. However, they require enormous computational resources to be deployed. Alternatively,…

Computation and Language · Computer Science 2024-01-09 Jean Kaddour , Qi Liu

Simulation is increasingly being used for generating large labelled datasets in many machine learning problems. Recent methods have focused on adjusting simulator parameters with the goal of maximising accuracy on a validation task, usually…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Harkirat Singh Behl , Atılım Güneş Baydin , Ran Gal , Philip H. S. Torr , Vibhav Vineet

Large language models (LLMs) have significantly benefited from training on diverse, high-quality task-specific data, leading to impressive performance across a range of downstream applications. Current methods often rely on human-annotated…

Computation and Language · Computer Science 2024-10-23 Qintong Li , Jiahui Gao , Sheng Wang , Renjie Pi , Xueliang Zhao , Chuan Wu , Xin Jiang , Zhenguo Li , Lingpeng Kong

Federated semi-supervised learning (FSSL) is primarily challenged by two factors: the scarcity of labeled data across clients and the non-independent and identically distribution (non-IID) nature of data among clients. In this paper, we…

Machine Learning · Computer Science 2025-01-07 Zhongwei Wang , Tong Wu , Zhiyong Chen , Liang Qian , Yin Xu , Meixia Tao

Zero-shot personalized image generation models aim to produce images that align with both a given text prompt and subject image, requiring the model to incorporate both sources of guidance. Existing methods often struggle to capture…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Zicheng Duan , Yuxuan Ding , Chenhui Gou , Ziqin Zhou , Ethan Smith , Lingqiao Liu

This paper introduces FedGenGMM, a novel one-shot federated learning approach for Gaussian Mixture Models (GMM) tailored for unsupervised learning scenarios. In federated learning (FL), where multiple decentralized clients collaboratively…

Machine Learning · Computer Science 2025-06-03 Sophia Zhang Pettersson , Kuo-Yun Liang , Juan Carlos Andresen

We present a meta-learning based generative model for zero-shot learning (ZSL) towards a challenging setting when the number of training examples from each \emph{seen} class is very few. This setup contrasts with the conventional ZSL…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Vinay Kumar Verma , Ashish Mishra , Anubha Pandey , Hema A. Murthy , Piyush Rai

Weakly Supervised Semantic Segmentation (WSSS) with image level labels aims to produce pixel level predictions without requiring dense annotations. While recent approaches have leveraged generative models to augment existing data, they…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Wangyu Wu , Zhenhong Chen , Xiaowei Huang , Fei Ma , Jimin Xiao

Zero-shot learning (ZSL) is made possible by learning a projection function between a feature space and a semantic space (e.g.,~an attribute space). Key to ZSL is thus to learn a projection that is robust against the often large domain gap…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Zhiwu Lu , Jiechao Guan , Aoxue Li , Tao Xiang , An Zhao , Ji-Rong Wen

Robust object recognition systems usually rely on powerful feature extraction mechanisms from a large number of real images. However, in many realistic applications, collecting sufficient images for ever-growing new classes is unattainable.…

Computer Vision and Pattern Recognition · Computer Science 2017-05-05 Yang Long , Li Liu , Ling Shao , Fumin Shen , Guiguang Ding , Jungong Han

A major obstacle to the wide-spread adoption of neural retrieval models is that they require large supervised training sets to surpass traditional term-based techniques, which are constructed from raw corpora. In this paper, we propose an…

Information Retrieval · Computer Science 2021-01-28 Ji Ma , Ivan Korotkov , Yinfei Yang , Keith Hall , Ryan McDonald

Large Language Models (LLMs) such as GPT-4 and Llama3 have significantly impacted various fields by enabling high-quality synthetic data generation and reducing dependence on expensive human-generated datasets. Despite this, challenges…

Computation and Language · Computer Science 2025-11-18 Yue Huang , Siyuan Wu , Chujie Gao , Dongping Chen , Qihui Zhang , Yao Wan , Tianyi Zhou , Jianfeng Gao , Chaowei Xiao , Lichao Sun , Xiangliang Zhang

With the rapid adoption of diffusion models, synthetic data generation has emerged as a promising approach for addressing the growing demand for large-scale image datasets. However, images generated purely by diffusion models often exhibit…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Thejas Venkatesh , Suguna Varshini Velury

Large-scale contrastive vision-language pre-trained models provide the zero-shot model achieving competitive performance across a range of image classification tasks without requiring training on downstream data. Recent works have confirmed…

Machine Learning · Computer Science 2024-04-02 Giung Nam , Byeongho Heo , Juho Lee