Results 11 to 20 of about 11,225 (203)
[Application of support vector machine in identifying neuromodulation states in patients with zoster-associated pain]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban目的 脊髓电刺激(spinal cord stimulation，SCS)是治疗难治性带状疱疹相关性疼痛(zoster-associated pain，ZAP)的常用方法。传统开环调控模式主要依赖患者主观反馈进行人工参数调节，而闭环调控模式的SCS临床应用尚不成熟，其优化与完善仍需进一步探索。已有研究发现SCS可影响脑电功能连接特征。本研究旨在探讨基于脑电功能连接特征的支持向量机(support vector machine，SVM)能否有效识别SCS的不同调控状态。 方法 ...
Chen L, Wu Q, Zhou H, Liu S.
europepmc +2 more sources
Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
wiley +1 more source
Behavioral interventions to reduce demand for threatened freshwater turtles as pets
Conservation Biology, EarlyView.Abstract Growing demand for freshwater turtles as pets has fueled illegal trade and accelerated wild population declines, underscoring the need for theory‐based demand‐reduction interventions. We conducted a three‐part randomized controlled trial with active turtle keepers (n = 1800) in China to test conservation‐ and legality‐framed messages by ...
Wuji Zheng +9 more
wiley +1 more source
Learning Styles, Engagement and Anxiety in AI‐Mediated Writing: A Multimodal Feedback Study
International Journal of Applied Linguistics, EarlyView.ABSTRACT Artificial intelligence (AI) tools now permeate English academic writing. However, evidence on how feedback modalities align with student differences and with psychological mechanisms remains limited. Prior work often reduced learning styles to simple matches with delivery modes and treated learning engagement and writing anxiety as peripheral.
Yi Ren +3 more
wiley +1 more source
Gaoya dianqi, 2020 变压器是电网最为核心的设备,绕组变形是变压器主要的故障类型之一,频率响应分析法（frequency response analysis, FRA）是目前广泛应用的绕组变形检测方法。为提高绕组变形分类诊断的性能,文中提出基于粒子群算法优化支持向量机（particle swarm optimization-support vector machine, PSO-SVM）的变压器绕组变形分类方法,采用数学统计方法提取频率响应曲线的特征参量,并输入到支持向量机模型进行训练,利用粒子群算法优化支持向量机模型参数 ...
刘伟 +4 more
doaj
Policy Studies Journal, EarlyView.ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley +1 more source
Research of Underwater Acoustic Communication Signal Modulation Recognition and Its Implementation [PDF]
, 2016 随着海洋开发、海洋权益维护、国防安全等领域信息获取和处理需求的不断提升，对水声通信信号的调制样式的自动识别研究成为重要的研究课题。然而目前无线领域常用的通信信号(BPSK，QPSK，MFSK，OFDM)的调制识别方法往往需要较多的调制参数作为先验知识（如精确载波频率、初始相位、符号速率）。由于水声信道的随机时-空-频变、窄带高噪、多途效应及多普勒频移等特性，使得上述这些先验知识在水声信号调制方式未知的情况下很难得到，因此，非合作水声通信信号的自动识别极具挑战性。 信号频谱是对信号在频域方面的一种描述 ...
江伟华
core
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown +2 more
wiley +1 more source
Research on Semisupervised Classification for Hyperspectral Image Based on Spectral-Spatial Feature [PDF]
, 2015 高光谱遥感图像分类是图像研究领域的新热点问题，具有广泛的应用前景。随着近年来关注度的持续上升和研究投入的不断增加，已经取得一定的技术成果。然而，由于高光谱遥感图像本身的特殊性，使得其分类技术存在着维度高而训练集小、信息冗余、混合像素多等问题。针对这些问题，本文开展了基于谱域-空间特征的半监督高光谱图像分类方法研究，主要研究工作及创新点如下： 1.为了充分利用目标像素点的空间信息，提出将谱域和空间信息相结合的特征。目标像素点的空间信息包括：空间邻域像素点光谱信息和目标像素点自身空间位置信息 ...
尤雅萍
core
Food and Energy Security, Volume 15, Issue 2, March/April 2026.ABSTRACT Net photosynthetic rate (Pn) serves as a key indicator for evaluating plant growth and yield. In order to explore an effective method for monitoring winter rapeseed Pn using unmanned aerial vehicle (UAV) multispectral technology, the winter rapeseed was taken as the research object and the multispectral images were obtained through UAVs in ...
ChengYang Ni +7 more
wiley +1 more source