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Both feature selection and hyperparameter tuning are key tasks in machine learning. Hyperparameter tuning is often useful to increase model performance, while feature selection is undertaken to attain sparse models. Sparsity may yield…

机器学习 · 统计学 2020-02-14 Martin Binder , Julia Moosbauer , Janek Thomas , Bernd Bischl

Keyword spotting (KWS) is becoming a ubiquitous need with the advancement in artificial intelligence and smart devices. Recent work in this field have focused on several different architectures to achieve good results on datasets with low…

音频与语音处理 · 电气工程与系统科学 2021-09-17 Anwesh Mohanty , Adrian Frischknecht , Christoph Gerum , Oliver Bringmann

An ongoing challenge in current natural language processing is how its major advancements tend to disproportionately favor resource-rich languages, leaving a significant number of under-resourced languages behind. Due to the lack of…

计算与语言 · 计算机科学 2023-02-13 Ruoyu Xie , Antonios Anastasopoulos

Keyword spotting (KWS) and speaker verification (SV) have been studied independently although it is known that acoustic and speaker domains are complementary. In this paper, we propose a multi-task network that performs KWS and SV…

音频与语音处理 · 电气工程与系统科学 2020-08-10 Myunghun Jung , Youngmoon Jung , Jahyun Goo , Hoirin Kim

Recent studies indicate that deep neural networks degrade in generalization performance under noisy supervision. Existing methods focus on isolating clean subsets or correcting noisy labels, facing limitations such as high computational…

机器学习 · 计算机科学 2025-10-30 Kuan Zhang , Chengliang Chai , Jingzhe Xu , Chi Zhang , Han Han , Ye Yuan , Guoren Wang , Lei Cao

Enhancing the generalisation abilities of neural networks (NNs) through integrating noise such as MixUp or Dropout during training has emerged as a powerful and adaptable technique. Despite the proven efficacy of noise in NN training, there…

机器学习 · 计算机科学 2024-04-04 Martin Ferianc , Ondrej Bohdal , Timothy Hospedales , Miguel Rodrigues

This paper presents a novel quantum K-nearest neighbors (QKNN) algorithm, which offers improved performance over the classical k-NN technique by incorporating quantum computing (QC) techniques to enhance classification accuracy,…

量子物理 · 物理学 2025-08-05 Asif Akhtab Ronggon , Md. Saifur Rahman

The angular synchronization problem aims to accurately estimate (up to a constant additive phase) a set of unknown angles $\theta_1, \dots, \theta_n\in[0, 2\pi)$ from $m$ noisy measurements of their offsets $\theta_i-\theta_j \;\mbox{mod}…

机器学习 · 计算机科学 2024-02-13 Yixuan He , Gesine Reinert , David Wipf , Mihai Cucuringu

This report presents our audio event detection system submitted for Task 2, "Detection of rare sound events", of DCASE 2017 challenge. The proposed system is based on convolutional neural networks (CNNs) and deep neural networks (DNNs)…

声音 · 计算机科学 2017-10-19 Huy Phan , Martin Krawczyk-Becker , Timo Gerkmann , Alfred Mertins

Nearest neighbor has always been one of the most appealing non-parametric approaches in machine learning, pattern recognition, computer vision, etc. Previous empirical studies partly shows that nearest neighbor is resistant to noise, yet…

机器学习 · 计算机科学 2018-09-14 Wei Gao , Bin-Bin Yang , Zhi-Hua Zhou

Digital sensors can lead to noisy results under many circumstances. To be able to remove the undesired noise from images, proper noise modeling and an accurate noise parameter estimation is crucial. In this project, we use a…

图像与视频处理 · 电气工程与系统科学 2022-12-21 Étienne Objois , Kaan Okumuş , Nicolas Bähler

Image denoising is a fundamental challenge in computer vision, with applications in photography and medical imaging. While deep learning-based methods have shown remarkable success, their reliance on specific noise distributions limits…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Dongjin Kim , Jaekyun Ko , Muhammad Kashif Ali , Tae Hyun Kim

We propose a method for certifying the fairness of the classification result of a widely used supervised learning algorithm, the k-nearest neighbors (KNN), under the assumption that the training data may have historical bias caused by…

机器学习 · 计算机科学 2023-07-19 Yannan Li , Jingbo Wang , Chao Wang

We consider the problem of detecting a small subset of defective items from a large set via non-adaptive "random pooling" group tests. We consider both the case when the measurements are noiseless, and the case when the measurements are…

信息论 · 计算机科学 2011-07-25 Chun Lam Chan , Pak Hou Che , Sidharth Jaggi , Venkatesh Saligrama

Convex optimization with sparsity-promoting convex regularization is a standard approach for estimating sparse signals in noise. In order to promote sparsity more strongly than convex regularization, it is also standard practice to employ…

计算机视觉与模式识别 · 计算机科学 2015-06-17 Po-Yu Chen , Ivan W. Selesnick

Modern navigation solutions are largely dependent on the performances of the standalone inertial sensors, especially at times when no external sources are available. During these outages, the inertial navigation solution is likely to…

信号处理 · 电气工程与系统科学 2025-11-20 Daniel Engelsman , Itzik Klein

We consider the problem of noisy Bayesian active learning, where we are given a finite set of functions $\mathcal{H}$, a sample space $\mathcal{X}$, and a label set $\mathcal{L}$. One of the functions in $\mathcal{H}$ assigns labels to…

信息论 · 计算机科学 2016-11-15 Mohammad Naghshvar , Tara Javidi , Kamalika Chaudhuri

Approximate K Nearest Neighbor (AKNN) search in high-dimensional spaces is a critical yet challenging problem. In AKNN search, distance computation is the core task that dominates the runtime. Existing approaches typically use approximate…

数据库 · 计算机科学 2025-01-20 Mingyu Yang , Wentao Li , Jiabao Jin , Xiaoyao Zhong , Xiangyu Wang , Zhitao Shen , Wei Jia , Wei Wang

Overparameterization and overfitting are common concerns when designing and training deep neural networks, that are often counteracted by pruning and regularization strategies. However, these strategies remain secondary to most learning…

机器学习 · 计算机科学 2020-09-01 Malena Reiners , Kathrin Klamroth , Michael Stiglmayr

The paper deals with a multiobjective combinatorial optimization problem with $K$ linear cost functions. The popular Ordered Weighted Averaging (OWA) criterion is used to aggregate the cost functions and compute a solution. It is well known…

数据结构与算法 · 计算机科学 2018-04-11 André Chassein , Marc Goerigk , Adam Kasperski , Paweł Zieliński