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In order to push the performance on realistic computer vision tasks, the number of classes in modern benchmark datasets has significantly increased in recent years. This increase in the number of classes comes along with increased ambiguity…

机器学习 · 统计学 2016-04-14 Maksim Lapin , Matthias Hein , Bernt Schiele

(Partial) ranking loss is a commonly used evaluation measure for multi-label classification, which is usually optimized with convex surrogates for computational efficiency. Prior theoretical work on multi-label ranking mainly focuses on…

机器学习 · 计算机科学 2021-05-12 Guoqiang Wu , Chongxuan Li , Kun Xu , Jun Zhu

Tokenization is a fundamental component of language models for code. It involves breaking down the input into units that are later passed to the language model stack to learn high-dimensional representations used in various contexts, from…

软件工程 · 计算机科学 2025-07-22 Mootez Saad , Hao Li , Tushar Sharma , Ahmed E. Hassan

Large language models (LLMs) achieve remarkable performance through ever-increasing parameter counts, but scaling incurs steep computational costs. To better understand LLM scaling, we study representational differences between LLMs and…

We present techniques that improve the performance of asymmetric stabilizer codes in the presence of unital channels with unknown parameters. Our method estimates the channel parameters using information recovered from syndrome measurements…

量子物理 · 物理学 2017-05-30 Jan Florjanczyk , Todd A. Brun

With the proliferation of deep learning techniques for wireless communication, several works have adopted learning-based approaches to solve the channel estimation problem. While these methods are usually promoted for their computational…

信息论 · 计算机科学 2022-11-22 Mohamed Akrout , Amal Feriani , Faouzi Bellili , Amine Mezghani , Ekram Hossain

The premise of massive multiple-input multiple-output (MIMO) is based around coherent transmission and detection. Majority of the vast literature on massive MIMO presents performance evaluations over simplified statistical propagation…

信息论 · 计算机科学 2020-03-04 Harsh Tataria , Fredrik Tufvesson

Reliably transmitting messages despite information loss due to a noisy channel is a core problem of information theory. One of the most important aspects of real world communication, e.g. via wifi, is that it may happen at varying levels of…

机器学习 · 计算机科学 2020-04-02 Karen Ullrich , Fabio Viola , Danilo Jimenez Rezende

We introduce MarginMatch, a new SSL approach combining consistency regularization and pseudo-labeling, with its main novelty arising from the use of unlabeled data training dynamics to measure pseudo-label quality. Instead of using only the…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Tiberiu Sosea , Cornelia Caragea

This work presents a first comprehensive analysis of the impact of vector coded caching (VCC) in multi-user multiple-input multiple-output (MU-MIMO) systems with multiple receive antennas and variable pathloss -- two key factors that…

信息论 · 计算机科学 2026-01-21 Hui Zhao , Petros Elia

In this paper, we provide new theoretical results on the generalization properties of learning algorithms for multiclass classification problems. The originality of our work is that we propose to use the confusion matrix of a classifier as…

机器学习 · 计算机科学 2012-05-25 Pierre Machart , Liva Ralaivola

Classification margins are commonly used to estimate the generalization ability of machine learning models. We present an empirical study of these margins in artificial neural networks. A global estimate of margin size is usually used in…

机器学习 · 计算机科学 2023-02-15 Marthinus W. Theunissen , Coenraad Mouton , Marelie H. Davel

Contrastive Forward-Forward (CFF) learning trains Vision Transformers layer by layer against supervised contrastive objectives. CFF training can be sensitive to random seed, but the sources of this instability are poorly understood. We…

机器学习 · 计算机科学 2026-03-03 Joshua Steier

Audio anti-spoofing for automatic speaker verification aims to safeguard users' identities from spoofing attacks. Although state-of-the-art spoofing countermeasure(CM) models perform well on specific datasets, they lack generalization when…

声音 · 计算机科学 2023-06-02 Hye-jin Shim , Jee-weon Jung , Tomi Kinnunen

This study evaluates fine-tuning strategies for text classification using the DistilBERT model, specifically the distilbert-base-uncased-finetuned-sst-2-english variant. Through structured experiments, we examine the influence of…

计算与语言 · 计算机科学 2025-01-03 Giuliano Lorenzoni , Ivens Portugal , Paulo Alencar , Donald Cowan

We study channel simulation under common randomness assistance in the finite-blocklength regime and identify the smooth channel max-information as a linear program one-shot converse on the minimal simulation cost for fixed error tolerance.…

信息论 · 计算机科学 2024-10-10 Michael X. Cao , Navneeth Ramakrishnan , Mario Berta , Marco Tomamichel

Since the advent of knowledge distillation, much research has focused on how the soft labels generated by the teacher model can be utilized effectively. Existing studies points out that the implicit knowledge within soft labels originates…

机器学习 · 计算机科学 2025-09-29 Hua Yuan , Ning Xu , Xin Geng , Yong Rui

Machine learning models are increasingly used in practice. However, many machine learning methods are sensitive to test or operational data that is dissimilar to training data. Out-of-distribution (OOD) data is known to increase the…

机器学习 · 计算机科学 2023-03-01 Tyler Cody , Laura Freeman

The channel feedback overhead for massive MIMO systems with a large number of base station (BS) antennas is very high, since the number of feedback bits of traditional codebooks scales linearly with the number of BS antennas. To reduce the…

信息论 · 计算机科学 2017-01-23 Wenqian Shen , Linglong Dai , Yu Zhang , Zhaocheng Wang

Key for solving fine-grained image categorization is finding discriminate and local regions that correspond to subtle visual traits. Great strides have been made, with complex networks designed specifically to learn part-level discriminate…

计算机视觉与模式识别 · 计算机科学 2021-08-11 Dongliang Chang , Yifeng Ding , Jiyang Xie , Ayan Kumar Bhunia , Xiaoxu Li , Zhanyu Ma , Ming Wu , Jun Guo , Yi-Zhe Song