Results 21 to 30 of about 11,436 (167)

A least square support vector machine algorithm for solving huge contradictory equations(求解大规模矛盾方程组的最小二乘支持向量机算法)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
房价预测、共享单车出租数量预测、空气污染情况预测等常涉及矛盾方程组求解,对其数值求解方法研究具有重要的理论意义与应用价值。当矛盾方程组规模过大时,用传统的最小二乘法求解,不仅计算量大,而且由于误差积累使最终结果的准确性不高。鉴于此,采用机器学习中的最小二乘支持向量机(least squares support vector machine,LS-SVM)算法求解大规模矛盾方程组,并分别针对线性、非线性、单变量、多变量矛盾方程组进行了数值求解。数值结果表明,数据类型和数据量的变化对结果的影响不大 ...
ZHENGSupei(郑素佩)   +3 more
doaj   +1 more source

Predictive value of geriatric nutritional risk index for pulmonary infections in hospitalized elderly patients with type 2 diabetes mellitus [PDF]

open access: yes
Objective·To investigate the predictive value of the geriatric nutritional risk index (GNRI) for the occurrence of lung infection in hospitalized elderly patients with type 2 diabetes mellitus (T2DM).Methods·Elderly T2DM patients who were admitted to the
FANG Shuyu   +4 more
core   +1 more source

Machine Learning Model for an App‐Based Tool to Assist With the Diagnosis of Canine Atopic Dermatitis

open access: yesVeterinary Dermatology, Volume 37, Issue 2, Page 236-246, April 2026.
Canine atopic dermatitis (cAD) is a chronic condition requiring life‐long management. Accurate diagnosis can be challenging, with no reliable diagnostic test. This study aimed to generate a simple diagnostic model for cAD. This model is a relevant prototype for an app‐based tool to support general practitioners in the diagnosis of cAD alongside ...
Xavier Langon   +2 more
wiley   +1 more source

Predictive value of logistic regression model based on high-resolution CT signs for high-grade pattern in stage ⅠA lung adenocarcinoma [PDF]

open access: yes, 2023
Background and purpose: Studies have shown that when high-grade histological patterns (micropapillary and solid patterns) are present, patients with lung adenocarcinoma have a significantly poorer prognosis and often require more aggressive treatment ...
DONG Hao, QIU Yonggang, WANG Xinbin, YANG Junjie, LOU Cuncheng, YIN Lekang, YE Xiaodan
core   +1 more source

Orthogonal Stimulus‐Responsive Ca3Ga2Ge3O12: Pr3+ for Real‐Time X‐Ray Dosimetry and Dynamic Information Encryption

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Multimodal luminescent materials are crucial for advanced information encryption, real‐time dosimetry, and high‐resolution bioimaging, yet integrating orthogonal stimulus‐responsiveness into a single‐component system is challenging. Herein, we report a Pr3+‐doped Ca3Ga2Ge3O12 (CGGO: Pr3+) garnet phosphor that exhibits orthogonally addressable ...
Qi Chen   +10 more
wiley   +1 more source

Value of Kyoto gastritis score and modified prediction model in diagnosing Helicobacter pylori infection status under gastroscopy in Chinese population [PDF]

open access: yes, 2023
Objective: To validate the application value of Kyoto gastritis score in diagnosing Helicobacter pylori (Hp) infection status under gastroscopy in Chinses population, and to construct a modified prediction model to improve the diagnostic value of Hp ...
QIAN Danye, MENG Xiangjun, ZHU Liming
core   +1 more source

Ultrasound features in early pregnancy for predicting abnormal karyotype in first‐trimester miscarriage

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 376-384, March 2026.
ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty   +5 more
wiley   +1 more source

LI-RADS与亚洲肿瘤峰会标准对小肝癌的诊断效能分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2019
【目的】比较肝脏影像报告和数据管理系统LI-RADS(v2013)和亚洲肿瘤峰会AOS标准对小肝癌的诊断价值。【方法】回顾性分析有肝细胞癌发病风险的220名共289处直径 ...
王影, 余深平
doaj  

Correlation analysis between Scr,hs-cTnT,NT-proBNP and major cardiovascular adverse events in patients with burn injury [PDF]

open access: yes
Objective To investigate the correlation between serum creatinine(Scr),high-sensitivity troponin T(hs-cTnT),N-terminal pro-B-type natriuretic peptide(NT-proBNP),and in-hospital major adverse cardiovascular events(MACE)in burn patients and evaluate their ...
Xiong Lei, Luo Weiqing, Zhang Shaoheng
core   +1 more source

Changes and significance of TLR7/9 and IFN-Ⅰ levels in children with severe mycoplasma pneumoniae pneumonia [PDF]

open access: yes, 2023
Objective To investigate the changes and significance of Toll-like receptor 7 (TLR7), TLR9 and type I interferon (IFN-Ⅰ) in children with severe mycoplasma pneumoniae pneumonia (SMPP).
Yan Jiangxue, Ding Xia, Jiao Qiongjie, Huang Li, Cao Nannan, Dong Xinfang, Ni Qian
core   +1 more source

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