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We investigate segmenting and clustering speech into low-bitrate phone-like sequences without supervision. We specifically constrain pretrained self-supervised vector-quantized (VQ) neural networks so that blocks of contiguous feature…

计算与语言 · 计算机科学 2021-06-14 Herman Kamper , Benjamin van Niekerk

We present an efficient clustering algorithm applicable to one-dimensional data such as e.g. a series of timestamps. Given an expected frequency $\Delta T^{-1}$, we introduce an $\mathcal{O}(N)$-efficient method of characterizing $N$ events…

分布式、并行与集群计算 · 计算机科学 2020-04-07 Conrad M Albrecht , Marcus Freitag , Theodore G van Kessel , Siyuan Lu , Hendrik F Hamann

Tensor clustering, which seeks to extract underlying cluster structures from noisy tensor observations, has gained increasing attention. One extensively studied model for tensor clustering is the tensor block model, which postulates the…

统计理论 · 数学 2023-11-07 Yuchen Zhou , Yuxin Chen

We look at the long-standing problem of segmenting unlabeled speech into word-like segments and clustering these into a lexicon. Several previous methods use a scoring model coupled with dynamic programming to find an optimal segmentation.…

音频与语音处理 · 电气工程与系统科学 2025-01-14 Simon Malan , Benjamin van Niekerk , Herman Kamper

Learning robust models under adversarial settings is widely recognized as requiring a considerably large number of training samples. Recent work proposes semi-supervised adversarial training (SSAT), which utilizes external unlabeled or…

机器学习 · 计算机科学 2026-03-10 Somrita Ghosh , Yuelin Xu , Xiao Zhang

Social event detection refers to extracting relevant message clusters from social media data streams to represent specific events in the real world. Social event detection is important in numerous areas, such as opinion analysis, social…

社会与信息网络 · 计算机科学 2024-07-29 Zhiwei Yang , Yuecen Wei , Haoran Li , Qian Li , Lei Jiang , Li Sun , Xiaoyan Yu , Chunming Hu , Hao Peng

Subspace clustering is a growing field of unsupervised learning that has gained much popularity in the computer vision community. Applications can be found in areas such as motion segmentation and face clustering. It assumes that data…

机器学习 · 统计学 2019-11-12 Hankui Peng , Nicos G. Pavlidis

Techniques for clustering student behaviour offer many opportunities to improve educational outcomes by providing insight into student learning. However, one important aspect of student behaviour, namely its evolution over time, can often…

机器学习 · 计算机科学 2021-10-08 Jessica McBroom , Kalina Yacef , Irena Koprinska

Clustering using deep autoencoders has been thoroughly investigated in recent years. Current approaches rely on simultaneously learning embedded features and clustering the data points in the latent space. Although numerous deep clustering…

机器学习 · 计算机科学 2019-09-27 Nairouz Mrabah , Mohamed Bouguessa , Riadh Ksantini

Clustering is a well-known unsupervised machine learning approach capable of automatically grouping discrete sets of instances with similar characteristics. Constrained clustering is a semi-supervised extension to this process that can be…

Event-based cameras offer reliable measurements for preforming computer vision tasks in high-dynamic range environments and during fast motion maneuvers. However, adopting deep learning in event-based vision faces the challenge of annotated…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Dayuan Jian , Mohammad Rostami

The task of labeling data for training deep neural networks is daunting and tedious, requiring millions of labels to achieve the current state-of-the-art results. Such reliance on large amounts of labeled data can be relaxed by exploiting…

机器学习 · 计算机科学 2016-02-17 Aysegul Dundar , Jonghoon Jin , Eugenio Culurciello

In this paper, we study the problem of unsupervised object detection from 3D point clouds in self-driving scenes. We present a simple yet effective method that exploits (i) point clustering in near-range areas where the point clouds are…

计算机视觉与模式识别 · 计算机科学 2023-11-06 Lunjun Zhang , Anqi Joyce Yang , Yuwen Xiong , Sergio Casas , Bin Yang , Mengye Ren , Raquel Urtasun

We introduce a novel self-supervised deep clustering approach tailored for unstructured data without requiring prior knowledge of the number of clusters, termed Adaptive Self-supervised Robust Clustering (ASRC). In particular, ASRC…

机器学习 · 计算机科学 2024-07-31 Chen-Lu Ding , Jiancan Wu , Wei Lin , Shiyang Shen , Xiang Wang , Yancheng Yuan

Deep clustering can optimize representations of instances (i.e., representation learning) and explore the inherent data distribution (i.e., clustering) simultaneously, which demonstrates a superior performance over conventional clustering…

计算机视觉与模式识别 · 计算机科学 2023-11-27 Qi Qian

Modeling event patterns is a central task in a wide range of disciplines. In applications such as studying human activity patterns, events often arrive clustered with sporadic and long periods of inactivity. Such heterogeneity in event…

应用统计 · 统计学 2022-01-03 Jingfei Zhang , Biao Cai , Xuening Zhu , Hansheng Wang , Ganggang Xu , Yongtao Guan

We consider the problem of semi-supervised few-shot classification where a classifier needs to adapt to new tasks using a few labeled examples and (potentially many) unlabeled examples. We propose a clustering approach to the problem. The…

机器学习 · 计算机科学 2018-04-26 Rinu Boney , Alexander Ilin

This study presents a machine learning-assisted approach to optimize task scheduling in cluster systems, focusing on node-affinity constraints. Traditional schedulers like Kubernetes struggle with real-time adaptability, whereas the…

分布式、并行与集群计算 · 计算机科学 2025-09-30 Leszek Sliwko , Jolanta Mizera-Pietraszko

In this paper, we propose a novel fully unsupervised framework that learns action representations suitable for the action segmentation task from the single input video itself, without requiring any training data. Our method is a deep metric…

计算机视觉与模式识别 · 计算机科学 2023-07-20 E. Bueno-Benito , B. Tura , M. Dimiccoli
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