Results 21 to 30 of about 1,834,948 (246)

High-Performance Lightweight Fall Detection with an Improved YOLOv5s Algorithm

open access: yesMachines, 2023
The aging population has drastically increased in the past two decades, stimulating the development of devices for healthcare and medical purposes. As one of the leading potential risks, the injuries caused by accidental falls at home are hazardous to ...
Yuanpeng Wang   +4 more
doaj   +1 more source

The development of a GIS for New Deal Archaeology

open access: yesBulletin of the History of Archaeology, 2011
I have recently launched an effort to create a GIS of all New Deal-funded archaeological investigations conducted in the 48 states that comprised the USA during the Great Depression (Means 2011).
Bernard K. Means
doaj   +1 more source

Improving Scalable K-Means++

open access: yesAlgorithms, 2020
Two new initialization methods for K-means clustering are proposed. Both proposals are based on applying a divide-and-conquer approach for the K-means‖ type of an initialization strategy. The second proposal also uses multiple lower-dimensional subspaces
Joonas Hämäläinen   +2 more
doaj   +1 more source

$k$-means clustering of extremes [PDF]

open access: yesElectronic Journal of Statistics, 2020
The $k$-means clustering algorithm and its variant, the spherical $k$-means clustering, are among the most important and popular methods in unsupervised learning and pattern detection. In this paper, we explore how the spherical $k$-means algorithm can be applied in the analysis of only the extremal observations from a data set.
Janßen, Anja, Wan, Phyllis
openaire   +5 more sources

Scalable k-means++

open access: yesProceedings of the VLDB Endowment, 2012
Over half a century old and showing no signs of aging, k -means remains one of the most popular data processing algorithms. As is well-known, a proper initialization of k -means is crucial for obtaining a good final solution.
Bahman Bahmani   +4 more
openaire   +2 more sources

Noisy k-means++ Revisited

open access: yesCoRR, 2023
Leibniz International Proceedings in Informatics (LIPIcs ...
Grunau, Christoph   +2 more
openaire   +4 more sources

Labouring in the Fields of the Past: Geographic Variation in New Deal Archaeology Across the Lower 48 United States

open access: yesBulletin of the History of Archaeology, 2015
New Deal archaeology survey and excavation projects across the lower 48 states exhibit considerable geographic variation in their nature and extent. Part of this variation can be linked to strong regional personalities, while other variation depended on ...
Bernard K. Means
doaj   +1 more source

Optimized Cartesian K-Means [PDF]

open access: yesIEEE Transactions on Knowledge and Data Engineering, 2015
Product quantization-based approaches are effective to encode high-dimensional data points for approximate nearest neighbor search. The space is decomposed into a Cartesian product of low-dimensional subspaces, each of which generates a sub codebook. Data points are encoded as compact binary codes using these sub codebooks, and the distance between two
Jianfeng Wang   +5 more
openaire   +5 more sources

K-means** - a fast and efficient K-means algorithms

open access: yesInternational Journal of Intelligent Information and Database Systems, 2018
K-means often converges to a local optimum. In improved versions of K-means, k-means++ is well-known for achieving a rather optimum solution with its cluster initialisation strategy and high computational efficiency. Incremental K-means is recognised for its converging to the empirically global optimum but having a high complexity due to its stepping ...
Cuong Duc Nguyen, Trong Hai Duong
openaire   +1 more source

Home - About - Disclaimer - Privacy