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Few-shot named entity recognition (NER) aims to recognize novel named entities in low-resource domains utilizing existing knowledge. However, the present few-shot NER models assume that the labeled data are all clean without noise or…

计算与语言 · 计算机科学 2023-12-14 Xiaojun Xue , Chunxia Zhang , Tianxiang Xu , Zhendong Niu

For faster sampling and higher sample quality, we propose DiNof ($\textbf{Di}$ffusion with $\textbf{No}$rmalizing $\textbf{f}$low priors), a technique that makes use of normalizing flows and diffusion models. We use normalizing flows to…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Mohsen Zand , Ali Etemad , Michael Greenspan

We present DiffusionBERT, a new generative masked language model based on discrete diffusion models. Diffusion models and many pre-trained language models have a shared training objective, i.e., denoising, making it possible to combine the…

计算与语言 · 计算机科学 2022-12-02 Zhengfu He , Tianxiang Sun , Kuanning Wang , Xuanjing Huang , Xipeng Qiu

Diffusion-based Deep Generative Models (DDGMs) offer state-of-the-art performance in generative modeling. Their main strength comes from their unique setup in which a model (the backward diffusion process) is trained to reverse the forward…

机器学习 · 计算机科学 2022-06-02 Kamil Deja , Anna Kuzina , Tomasz Trzciński , Jakub M. Tomczak

Named entity recognition (NER) is an important research problem in natural language processing. There are three types of NER tasks, including flat, nested and discontinuous entity recognition. Most previous sequential labeling models are…

计算与语言 · 计算机科学 2023-03-21 Ying Mo , Hongyin Tang , Jiahao Liu , Qifan Wang , Zenglin Xu , Jingang Wang , Wei Wu , Zhoujun Li

Denoising diffusion models represent a recent emerging topic in computer vision, demonstrating remarkable results in the area of generative modeling. A diffusion model is a deep generative model that is based on two stages, a forward…

计算机视觉与模式识别 · 计算机科学 2025-01-17 Florinel-Alin Croitoru , Vlad Hondru , Radu Tudor Ionescu , Mubarak Shah

Neural named entity recognition (NER) models may easily encounter the over-confidence issue, which degrades the performance and calibration. Inspired by label smoothing and driven by the ambiguity of boundary annotation in NER engineering,…

计算与语言 · 计算机科学 2022-04-27 Enwei Zhu , Jinpeng Li

Traditional named entity recognition (NER) aims to identify text mentions into pre-defined entity types. Continual Named Entity Recognition (CNER) is introduced since entity categories are continuously increasing in various real-world…

计算与语言 · 计算机科学 2025-10-14 Yawen Yang , Fukun Ma , Shiao Meng , Aiwei Liu , Lijie Wen

Limited by the encoder-decoder architecture, learning-based edge detectors usually have difficulty predicting edge maps that satisfy both correctness and crispness. With the recent success of the diffusion probabilistic model (DPM), we…

计算机视觉与模式识别 · 计算机科学 2024-01-10 Yunfan Ye , Kai Xu , Yuhang Huang , Renjiao Yi , Zhiping Cai

Denoising diffusion models are a novel class of generative algorithms that achieve state-of-the-art performance across a range of domains, including image generation and text-to-image tasks. Building on this success, diffusion models have…

机器学习 · 计算机科学 2024-03-08 Nic Fishman , Leo Klarner , Valentin De Bortoli , Emile Mathieu , Michael Hutchinson

The denoising process of diffusion models can be interpreted as an approximate projection of noisy samples onto the data manifold. Moreover, the noise level in these samples approximates their distance to the underlying manifold. Building…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Abulikemu Abuduweili , Chenyang Yuan , Changliu Liu , Frank Permenter

Remote sensing semantic segmentation must address both what the ground objects are within an image and where they are located. Consequently, segmentation models must ensure not only the semantic correctness of large-scale patches…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Hao Wang , Keyan Hu , Xin Guo , Haifeng Li , Chao Tao

Generative adversarial networks (GANs) are challenging to train stably, and a promising remedy of injecting instance noise into the discriminator input has not been very effective in practice. In this paper, we propose Diffusion-GAN, a…

机器学习 · 计算机科学 2023-08-29 Zhendong Wang , Huangjie Zheng , Pengcheng He , Weizhu Chen , Mingyuan Zhou

Financial time series often exhibit low signal-to-noise ratio, posing significant challenges for accurate data interpretation and prediction and ultimately decision making. Generative models have gained attention as powerful tools for…

机器学习 · 计算机科学 2024-09-05 Zhuohan Wang , Carmine Ventre

Spoken named entity recognition (NER) aims to identify named entities from speech, playing an important role in speech processing. New named entities appear every day, however, annotating their Spoken NER data is costly. In this paper, we…

计算与语言 · 计算机科学 2024-12-30 Jiawei Yu , Xiang Geng , Yuang Li , Mengxin Ren , Wei Tang , Jiahuan Li , Zhibin Lan , Min Zhang , Hao Yang , Shujian Huang , Jinsong Su

Pretrained language models have significantly advanced performance across various natural language processing tasks. However, adversarial attacks continue to pose a critical challenge to systems built using these models, as they can be…

计算与语言 · 计算机科学 2025-05-20 Zhenhao Li , Huichi Zhou , Marek Rei , Lucia Specia

Named entity recognition (NER) remains challenging when entity mentions can be discontinuous. Existing methods break the recognition process into several sequential steps. In training, they predict conditioned on the golden intermediate…

计算与语言 · 计算机科学 2021-11-29 Yucheng Wang , Bowen Yu , Hongsong Zhu , Tingwen Liu , Nan Yu , Limin Sun

Named entity recognition (NER) models often struggle with noisy inputs, such as those with spelling mistakes or errors generated by Optical Character Recognition processes, and learning a robust NER model is challenging. Existing robust NER…

计算与语言 · 计算机科学 2024-07-29 Chaoyi Ai , Yong Jiang , Shen Huang , Pengjun Xie , Kewei Tu

In supervised learning for image denoising, usually the paired clean images and noisy images are collected or synthesised to train a denoising model. L2 norm loss or other distance functions are used as the objective function for training.…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Yutong Xie , Minne Yuan , Bin Dong , Quanzheng Li

Distantly supervised named entity recognition (DS-NER) has emerged as a cheap and convenient alternative to traditional human annotation methods, enabling the automatic generation of training data by aligning text with external resources.…

计算与语言 · 计算机科学 2025-05-20 Yuyang Ding , Dan Qiao , Juntao Li , Jiajie Xu , Pingfu Chao , Xiaofang Zhou , Min Zhang