中文
相关论文

相关论文: On the connection between Noise-Contrastive Estima…

200 篇论文

In open-domain Question Answering (QA), dense retrieval is crucial for finding relevant passages for answer generation. Typically, contrastive learning is used to train a retrieval model that maps passages and queries to the same semantic…

计算与语言 · 计算机科学 2024-01-17 Shiqi Wang , Yeqin Zhang , Cam-Tu Nguyen

Conditional Neural Processes~(CNPs) bridge neural networks with probabilistic inference to approximate functions of Stochastic Processes under meta-learning settings. Given a batch of non-{\it i.i.d} function instantiations, CNPs are…

机器学习 · 计算机科学 2022-03-28 Zesheng Ye , Lina Yao

Recently, speech separation (SS) task has achieved remarkable progress driven by deep learning technique. However, it is still challenging to separate target speech from noisy mixture, as the neural model is vulnerable to assign background…

声音 · 计算机科学 2024-01-09 Zizheng Zhang , Chen Chen , Hsin-Hung Chen , Xiang Liu , Yuchen Hu , Eng Siong Chng

Robust diffusion adaptive estimation algorithms based on the maximum correntropy criterion (MCC), including adaptation to combination MCC and combination to adaptation MCC, are developed to deal with the distributed estimation over network…

机器学习 · 统计学 2016-02-04 Wentao Ma , Badong Chen , Jiandong Duan , Haiquan Zhao

Self-normalizing discriminative models approximate the normalized probability of a class without having to compute the partition function. In the context of language modeling, this property is particularly appealing as it may significantly…

计算与语言 · 计算机科学 2018-06-05 Jacob Goldberger , Oren Melamud

Recent work shows that in-context learning and optimization of in-context examples (ICE) can significantly improve the accuracy of large language models (LLMs) on a wide range of tasks, leading to an apparent consensus that ICE optimization…

计算与语言 · 计算机科学 2024-06-07 Pragya Srivastava , Satvik Golechha , Amit Deshpande , Amit Sharma

This paper presents Prototypical Contrastive Learning (PCL), an unsupervised representation learning method that addresses the fundamental limitations of instance-wise contrastive learning. PCL not only learns low-level features for the…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Junnan Li , Pan Zhou , Caiming Xiong , Steven C. H. Hoi

In this paper, we study a novel and widely existing problem in graph matching (GM), namely, Bi-level Noisy Correspondence (BNC), which refers to node-level noisy correspondence (NNC) and edge-level noisy correspondence (ENC). In brief, on…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Yijie Lin , Mouxing Yang , Jun Yu , Peng Hu , Changqing Zhang , Xi Peng

Although deep learning models have driven state-of-the-art performance on a wide array of tasks, they are prone to spurious correlations that should not be learned as predictive clues. To mitigate this problem, we propose a causality-based…

机器学习 · 计算机科学 2021-10-27 Xinyi Wang , Wenhu Chen , Michael Saxon , William Yang Wang

We propose a novel regularizer for supervised learning called Conditioning on Noisy Targets (CNT). This approach consists in conditioning the model on a noisy version of the target(s) (e.g., actions in imitation learning or labels in…

机器学习 · 计算机科学 2022-10-28 Alexia Jolicoeur-Martineau , Alex Lamb , Vikas Verma , Aniket Didolkar

Standard classification treats all errors equally, but in content moderation, medical screening, and safety-critical applications, mistakes on clear-cut cases are far more costly than errors on ambiguous ones. We propose normalized excess…

机器学习 · 计算机科学 2026-05-06 Kabir Kang , Stephen Mussmann

Traditional supervised learning with deep neural networks requires a tremendous amount of labelled data to converge to a good solution. For 3D medical images, it is often impractical to build a large homogeneous annotated dataset for a…

Humans have been shown to give contrastive explanations, which explain why an observed event happened rather than some other counterfactual event (the contrast case). Despite the influential role that contrastivity plays in how humans…

计算与语言 · 计算机科学 2021-06-25 Alexis Ross , Ana Marasović , Matthew E. Peters

Unsupervised sentence representation learning is one of the fundamental problems in natural language processing with various downstream applications. Recently, contrastive learning has been widely adopted which derives high-quality sentence…

计算与语言 · 计算机科学 2023-05-29 Jiduan Liu , Jiahao Liu , Qifan Wang , Jingang Wang , Wei Wu , Yunsen Xian , Dongyan Zhao , Kai Chen , Rui Yan

A new class of general exponential ranking models is introduced which we label angle-based models for ranking data. A consensus score vector is assumed, which assigns scores to a set of items, where the scores reflect a consensus view of…

统计方法学 · 统计学 2017-12-27 Hang Xu , Mayer Alvo , Philip L. H. Yu

It is widely known in the machine learning community that class noise can be (and often is) detrimental to inducing a model of the data. Many current approaches use a single, often biased, measurement to determine if an instance is noisy. A…

机器学习 · 统计学 2014-03-11 Michael R. Smith , Tony Martinez

Deep neural networks are able to memorize noisy labels easily with a softmax cross-entropy (CE) loss. Previous studies attempted to address this issue focus on incorporating a noise-robust loss function to the CE loss. However, the…

机器学习 · 计算机科学 2022-07-26 Li Yi , Sheng Liu , Qi She , A. Ian McLeod , Boyu Wang

With recent advances of diffusion model, generative speech enhancement (SE) has attracted a surge of research interest due to its great potential for unseen testing noises. However, existing efforts mainly focus on inherent properties of…

音频与语音处理 · 电气工程与系统科学 2024-06-05 Yuchen Hu , Chen Chen , Ruizhe Li , Qiushi Zhu , Eng Siong Chng

Acoustic scene classification is an automatic listening problem that aims to assign an audio recording to a pre-defined scene based on its audio data. Over the years (and in past editions of the DCASE) this problem has often been solved…

A fundamental problem of causal discovery is cause-effect inference, learning the correct causal direction between two random variables. Significant progress has been made through modelling the effect as a function of its cause and a noise…

机器学习 · 计算机科学 2023-10-27 Xiangyu Sun , Oliver Schulte