Results 1 to 10 of about 190,167 (213)

Grid-Based Clustering Using Boundary Detection [PDF]

open access: yesEntropy, 2022
Clustering can be divided into five categories: partitioning, hierarchical, model-based, density-based, and grid-based algorithms. Among them, grid-based clustering is highly efficient in handling spatial data.
Mingjing Du, Fuyu Wu
doaj   +2 more sources

Application of a Multi-Frequency Electromagnetic Method for Boundary Detection of Isolated Permafrost [PDF]

open access: yesSensors
Isolated permafrost is widely distributed in freeze–thaw transition zones, characterized by blurred boundaries and strong spatial variability. Traditional methods such as drilling and electrical resistivity surveys are often limited in achieving ...
Yi Wu   +5 more
doaj   +2 more sources

A Multi-Feature Search Window Method for Road Boundary Detection Based on LIDAR Data [PDF]

open access: yesSensors, 2019
In order to improve the accuracy of structured road boundary detection and solve the problem of the poor robustness of single feature boundary extraction, this paper proposes a multi-feature road boundary detection algorithm based on HDL-32E LIDAR ...
Kai Li, Jinju Shao, Dong Guo
doaj   +2 more sources

Application of Logging While Drilling Tool in Formation Boundary Detection and Geo-steering [PDF]

open access: yesSensors, 2019
Logging while drilling (LWD) plays a crucial role in geo-steering, which can determine the formation boundary and resistivity in real time. In this study, an efficient inversion, which can accurately invert formation information in real time on the basis
Gaoyang Zhu   +3 more
doaj   +2 more sources

A Continuous Object Boundary Detection and Tracking Scheme for Failure-Prone Sensor Networks [PDF]

open access: yesSensors, 2017
In wireless sensor networks, detection and tracking of continuous natured objects is more challenging owing to their unique characteristics such as uneven expansion and contraction. A continuous object is usually spread over a large area, and, therefore,
Sajida Imran, Young-Bae Ko
doaj   +2 more sources

JSD: A Dataset for Structure Analysis in Jazz Music

open access: yesTransactions of the International Society for Music Information Retrieval, 2022
Given a music recording, music structure analysis aims at identifying important structural elements and segmenting the recording according to these elements.
Stefan Balke   +4 more
doaj   +1 more source

An Approach for Counting Breeding Eels Using Mathematical Morphology Operations and Boundary Detection

open access: yesApplied Computer Systems, 2022
The Mekong Delta region of Vietnam has great potential for agricultural development thanks to natural incentives. Many livestock industries have developed for a long time and play an important role in the country with many agricultural export products ...
Tran An Cong   +3 more
doaj   +1 more source

Research and Experiment on Separation Method of Different Electromagnetic Field Components Measured by Tilting Coil

open access: yesCejing jishu, 2023
Tilt coil is one of the commonly used antenna structures of azimuthal electromagnetic wave logging while drilling tools, which is widely used in Schlumberger, Halliburton and such instruments developed in China National Offshore Oil Corporation and China
TIAN Yuanshi   +5 more
doaj   +1 more source

Trees in the Upper Treeline Ecotone in the Polar Urals: Centuries-Old Change and Spatial Patterns

open access: yesMountain Research and Development, 2020
Woody vegetation at the upper limit of its growth is a sensitive indicator of climate change. The aim of this study is to provide an analysis of the centuries-old spatiotemporal dynamics of larch trees at the upper limit of their growth (mountain massif ...
Valery V. Fomin   +2 more
doaj   +1 more source

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