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相关论文: Denoising Distant Supervision for Relation Extract…

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The existing supervised relation extraction methods have achieved impressive performance in a closed-set setting, where the relations during both training and testing remain the same. In a more realistic open-set setting, unknown relations…

计算与语言 · 计算机科学 2023-06-09 Jun Zhao , Xin Zhao , Wenyu Zhan , Qi Zhang , Tao Gui , Zhongyu Wei , Yunwen Chen , Xiang Gao , Xuanjing Huang

This paper provides a new way to improve the efficiency of the REINFORCE training process. We apply it to the task of instance selection in distant supervision. Modeling the instance selection in one bag as a sequential decision process, a…

计算与语言 · 计算机科学 2019-04-18 Qi Zhang , Siliang Tang , Xiang Ren , Fei Wu , Shiliang Pu , Yueting Zhuang

It is well-known that a deep neural network has a strong fitting capability and can easily achieve a low training error even with randomly assigned class labels. When the number of training samples is small, or the class labels are noisy,…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Avraham Chapman , Lingqiao Liu

Fine-grained word meaning resolution remains a critical challenge for neural language models (NLMs) as they often overfit to global sentence representations, failing to capture local semantic details. We propose a novel adversarial training…

计算与语言 · 计算机科学 2025-11-17 Jader Martins Camboim de Sá , Jooyoung Lee , Cédric Pruski , Marcos Da Silveira

Contrastive-learning-based methods have dominated sentence representation learning. These methods regularize the representation space by pulling similar sentence representations closer and pushing away the dissimilar ones and have been…

计算与语言 · 计算机科学 2024-01-25 Xinghao Wang , Junliang He , Pengyu Wang , Yunhua Zhou , Tianxiang Sun , Xipeng Qiu

Recent advances in deep learning have relied on large, labelled datasets to train high-capacity models. However, collecting large datasets in a time- and cost-efficient manner often results in label noise. We present a method for learning…

计算机视觉与模式识别 · 计算机科学 2022-07-07 Ahmet Iscen , Jack Valmadre , Anurag Arnab , Cordelia Schmid

Given the great success of Deep Neural Networks(DNNs) and the black-box nature of it,the interpretability of these models becomes an important issue.The majority of previous research works on the post-hoc interpretation of a trained…

机器学习 · 计算机科学 2021-03-22 Haoyang Li , Xinggang Wang

Distantly-supervised Relation Extraction (RE) methods train an extractor by automatically aligning relation instances in a Knowledge Base (KB) with unstructured text. In addition to relation instances, KBs often contain other relevant side…

计算与语言 · 计算机科学 2019-02-13 Shikhar Vashishth , Rishabh Joshi , Sai Suman Prayaga , Chiranjib Bhattacharyya , Partha Talukdar

Relation extraction (RE) has achieved remarkable progress with the help of pre-trained language models. However, existing RE models are usually incapable of handling two situations: implicit expressions and long-tail relation types, caused…

计算与语言 · 计算机科学 2023-01-31 Zhen Wan , Qianying Liu , Zhuoyuan Mao , Fei Cheng , Sadao Kurohashi , Jiwei Li

With an exponential explosive growth of various digital text information, it is challenging to efficiently obtain specific knowledge from massive unstructured text information. As one basic task for natural language processing (NLP),…

计算与语言 · 计算机科学 2020-03-27 Yan Xiao , Yaochu Jin , Ran Cheng , Kuangrong Hao

In this paper, we propose a novel self-supervised representation learning by taking advantage of a neighborhood-relational encoding (NRE) among the training data. Conventional unsupervised learning methods only focused on training deep…

计算机视觉与模式识别 · 计算机科学 2019-08-29 Mohammad Sabokrou , Mohammad Khalooei , Ehsan Adeli

The presence of noise is common in signal processing regardless the signal type. Deep neural networks have shown good performance in noise removal, especially on the image domain. In this work, we consider deep neural networks as a…

机器学习 · 计算机科学 2020-07-07 Leslie Casas , Attila Klimmek , Nassir Navab , Vasileios Belagiannis

Under certain statistical assumptions of noise, recent self-supervised approaches for denoising have been introduced to learn network parameters without true clean images, and these methods can restore an image by exploiting information…

计算机视觉与模式识别 · 计算机科学 2020-01-10 Seunghwan Lee , Donghyeon Cho , Jiwon Kim , Tae Hyun Kim

Deep neural networks are vulnerable to adversarial examples, i.e., carefully-perturbed inputs aimed to mislead classification. This work proposes a detection method based on combining non-linear dimensionality reduction and density…

机器学习 · 计算机科学 2019-05-02 Francesco Crecchi , Davide Bacciu , Battista Biggio

Neural network policies trained using Deep Reinforcement Learning (DRL) are well-known to be susceptible to adversarial attacks. In this paper, we consider attacks manifesting as perturbations in the observation space managed by the…

机器学习 · 计算机科学 2022-06-16 Zikang Xiong , Joe Eappen , He Zhu , Suresh Jagannathan

Noisy labels in large E-commerce product data (i.e., product items are placed into incorrect categories) are a critical issue for product categorization task because they are unavoidable, non-trivial to remove and degrade prediction…

计算与语言 · 计算机科学 2022-09-16 Huy Nguyen , Devashish Khatwani

Adversarial examples, which are usually generated for specific inputs with a specific model, are ubiquitous for neural networks. In this paper we unveil a surprising property of adversarial noises when they are put together, i.e.,…

机器学习 · 计算机科学 2022-06-10 Huishuai Zhang , Da Yu , Yiping Lu , Di He

Recent advances in deep neural models allow us to build reliable named entity recognition (NER) systems without handcrafting features. However, such methods require large amounts of manually-labeled training data. There have been efforts on…

计算与语言 · 计算机科学 2018-09-12 Jingbo Shang , Liyuan Liu , Xiang Ren , Xiaotao Gu , Teng Ren , Jiawei Han

Relation extraction is the problem of classifying the relationship between two entities in a given sentence. Distant Supervision (DS) is a popular technique for developing relation extractors starting with limited supervision. We note that…

计算与语言 · 计算机科学 2018-04-20 Sharmistha Jat , Siddhesh Khandelwal , Partha Talukdar

Under noisy environments, to achieve the robust performance of speaker recognition is still a challenging task. Motivated by the promising performance of multi-task training in a variety of image processing tasks, we explore the potential…

声音 · 计算机科学 2019-05-14 Jianfeng Zhou , Tao Jiang , Lin Li , Qingyang Hong , Zhe Wang , Bingyin Xia