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Supervised classification has a theoretical optimum, Neural Collapse (NC), yet neither of its two dominant paradigms reaches it in practice. Cross entropy (CE) leaves radial degrees of freedom unconstrained and converges to a degenerate…

机器学习 · 计算机科学 2026-05-22 Panagiotis Koromilas , Theodoros Giannakopoulos , Mihalis A. Nicolaou , Yannis Panagakis

Semantic representation learning for sentences is an important and well-studied problem in NLP. The current trend for this task involves training a Transformer-based sentence encoder through a contrastive objective with text, i.e.,…

计算与语言 · 计算机科学 2022-09-21 Yiren Jian , Chongyang Gao , Soroush Vosoughi

Vehicular communication systems face significant challenges due to high mobility and rapidly changing environments, which affect the channel over which the signals travel. To address these challenges, neural network (NN)-based channel…

机器学习 · 计算机科学 2025-02-12 Simbarashe Aldrin Ngorima , Albert Helberg , Marelie H. Davel

In recent years, neural machine translation (NMT) has become the dominant approach in automated translation. However, like many other deep learning approaches, NMT suffers from overfitting when the amount of training data is limited. This…

计算与语言 · 计算机科学 2019-10-01 Inigo Jauregi Unanue , Ehsan Zare Borzeshi , Massimo Piccardi

In recent years, convolutional neural networks (CNNs) took over the field of document analysis and they became the predominant model for word spotting. Especially attribute CNNs, which learn the mapping between a word image and an attribute…

计算机视觉与模式识别 · 计算机科学 2019-03-27 Fabian Wolf , Philipp Oberdiek , Gernot A. Fink

Statistical language modeling techniques have successfully been applied to source code, yielding a variety of new software development tools, such as tools for code suggestion and improving readability. A major issue with these techniques…

软件工程 · 计算机科学 2019-03-15 Rafael-Michael Karampatsis , Charles Sutton

Compositional reasoning in Vision-Language Models (VLMs) remains challenging as these models often struggle to relate objects, attributes, and spatial relationships. Recent methods aim to address these limitations by relying on the…

计算与语言 · 计算机科学 2024-10-30 Paola Cascante-Bonilla , Yu Hou , Yang Trista Cao , Hal Daumé , Rachel Rudinger

Label noise is ubiquitous in various machine learning scenarios such as self-labeling with model predictions and erroneous data annotation. Many existing approaches are based on heuristics such as sample losses, which might not be flexible…

机器学习 · 计算机科学 2022-12-29 Zhihao Wang , Zongyu Lin , Peiqi Liu , Guidong ZHeng , Junjie Wen , Xianxin Chen , Yujun Chen , Zhilin Yang

We introduce a simple neural encoder architecture that can be trained using an unsupervised contrastive learning objective which gets its positive samples from data-augmented k-Nearest Neighbors search. We show that when built on top of…

人工智能 · 计算机科学 2023-10-24 Robin Algayres , Adel Nabli , Benoit Sagot , Emmanuel Dupoux

Deep neural networks are prone to overfitting noisy labels, resulting in poor generalization performance. To overcome this problem, we present a simple and effective method self-ensemble label correction (SELC) to progressively correct…

计算机视觉与模式识别 · 计算机科学 2022-05-04 Yangdi Lu , Wenbo He

Convolutional Neural Networks (CNN) are very popular in many fields including computer vision, speech recognition, natural language processing, to name a few. Though deep learning leads to groundbreaking performance in these domains, the…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Chaim Baskin , Natan Liss , Yoav Chai , Evgenii Zheltonozhskii , Eli Schwartz , Raja Giryes , Avi Mendelson , Alexander M. Bronstein

Very deep CNNs with small 3x3 kernels have recently been shown to achieve very strong performance as acoustic models in hybrid NN-HMM speech recognition systems. In this paper we investigate how to efficiently scale these models to larger…

计算与语言 · 计算机科学 2016-06-28 Tom Sercu , Vaibhava Goel

We present UNSEE: Unsupervised Non-Contrastive Sentence Embeddings, a novel approach that outperforms SimCSE in the Massive Text Embedding benchmark. Our exploration begins by addressing the challenge of representation collapse, a…

计算与语言 · 计算机科学 2024-02-05 Ömer Veysel Çağatan

The sample selection approach is very popular in learning with noisy labels. As deep networks learn pattern first, prior methods built on sample selection share a similar training procedure: the small-loss examples can be regarded as clean…

机器学习 · 计算机科学 2023-09-06 Xiaobo Xia , Pengqian Lu , Chen Gong , Bo Han , Jun Yu , Jun Yu , Tongliang Liu

The new paradigm of test-time scaling has yielded remarkable breakthroughs in Large Language Models (LLMs) (e.g. reasoning models) and in generative vision models, allowing models to allocate additional computation during inference to…

机器学习 · 计算机科学 2025-08-14 Luca Eyring , Shyamgopal Karthik , Alexey Dosovitskiy , Nataniel Ruiz , Zeynep Akata

Speech recognition in noisy and channel distorted scenarios is often challenging as the current acoustic modeling schemes are not adaptive to the changes in the signal distribution in the presence of noise. In this work, we develop a novel…

音频与语音处理 · 电气工程与系统科学 2020-11-03 Purvi Agrawal , Sriram Ganapathy

We study empirical scaling laws for language model performance on the cross-entropy loss. The loss scales as a power-law with model size, dataset size, and the amount of compute used for training, with some trends spanning more than seven…

As the vocabulary size of modern word-based language models becomes ever larger, many sampling-based training criteria are proposed and investigated. The essence of these sampling methods is that the softmax-related traversal over the…

计算与语言 · 计算机科学 2021-06-18 Yingbo Gao , David Thulke , Alexander Gerstenberger , Khoa Viet Tran , Ralf Schlüter , Hermann Ney

Although numerous methods to reduce the overfitting of convolutional neural networks (CNNs) exist, it is still not clear how to confidently measure the degree of overfitting. A metric reflecting the overfitting level might be, however,…

机器学习 · 计算机科学 2022-09-28 Svetlana Pavlitskaya , Joël Oswald , J. Marius Zöllner

Speech recognition system performance degrades in noisy environments. If the acoustic models are built using features of clean utterances, the features of a noisy test utterance would be acoustically mismatched with the trained model. This…

计算与语言 · 计算机科学 2015-07-16 D. S. Pavan Kumar