Results 131 to 140 of about 17,677 (287)
Research on Human Face Recognition Based on Improved NMF Algorithm
, 2016 研究人脸识别是为了提高身份识别的明确性,具有直接、友好、方便等优点。但传统的基于PCA的人脸识别算法易受光照、表情、姿态等因素的干扰,从而导致其识别率的下降;鉴于此,提出了改进的NMF(非负矩阵分解)人脸图像识别算法。通过在NMF算法嵌入基于多超图的流形学习算法,可以在人脸图像的降维过程中最优地保持各图像间的流形信息,从而实现人脸识别算法对光照、表情、姿态等因素的鲁棒性。另外,为降低运算成本,提出了在测试阶段采用增量式的迭代求解算法。在人脸数据库ORL、YALE上进行试验的结果表明 ...
李冰锋, 韩志, 唐延东
core
Biomarkers for therapeutic response and adverse outcomes in atopic dermatitis: A systematic review
Journal of the European Academy of Dermatology and Venereology, EarlyView.This review assessed 52 biomarkers predicting systemic therapy response and adverse events in atopic dermatitis. Most studies focused on dupilumab, and findings were inconsistent. IgE and eosinophils were largely non‐predictive, though elevated eosinophils and LDH sometimes indicated poorer outcomes.
Eva Hilger +11 more
wiley +1 more source
Frontiers in MedicineObjectiveTo evaluate the utility of the NMF standards—comprising intraoperative norepinephrine dosage, preoperative MELD-Na score, and total intraoperative fluid intake—in determining the optimal timing for initiating renal replacement therapy (RRT) in ...
Gong-jie Ye, Zhou-zhou Dong
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract Atlantic herring Clupea harengus are total spawners that exhibit a large degree of reproductive plasticity and have substantial intra‐annual variation in their energetic condition. Recent research suggests that the species may be declining in energetic condition in the northwest Atlantic Ocean from the few historical records, but comparisons ...
Joseph B. Warren +2 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract Effective fishery management policy depends on accurate life‐history data, particularly for harvested species. Longevity is a core life‐history trait that is directly related to annual survival and lifetime reproductive potential, but fish longevity is generally not well documented, particularly for long‐lived species.
Edward A. Baker +8 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract The twaite shad (A. fallax), an anadromous fish species belonging to the Clupeidae family, has experienced population declines throughout Europe. This decline is attributable to a range of anthropogenic pressures, including migration barriers, environmental pollution, habitat degradation, predation by invasive species and unsustainable fishing
Alessia Ardenghi +10 more
wiley +1 more source
Research on NMF Based Hierarchical Clustering Methods
, 2010 LSI based hierarchical agglomerative clustering algorithm is studied. Aiming to the problems of LSI based hierarchical agglomerative clustering method, NMF based hierarchical clustering method is proposed and analyzed.
Qun Xiong Zhu, Fang Li
core +1 more source
Journal of Microscopy, EarlyView.Abstract Grain identification in polycrystalline nanoparticles, for example, determining which crystal phases are present at each spatial location, is fundamental to materials characterisation. This is particularly challenging when grains overlap extensively, as commonly occurs in four‐dimensional scanning transmission electron microscopy (4D‐STEM ...
Wei Liu +5 more
wiley +1 more source
Plant, Cell &Environment, EarlyView.ABSTRACT Trehalose 6‐phoshpate (Tre6P) is a key signalling molecule that reflects carbon status and integrates it with developmental decision making. Tre6P has been demonstrated to regulate various developmental processes, including vegetative growth, shoot branching, flowering, and root branching.
Moritz Göbel +10 more
wiley +1 more source
Veterinary Dermatology, EarlyView.Background: Faecal microbiota transplantation (FMT) is an established therapy for gastrointestinal disease, yet its role in canine atopic dermatitis (cAD) remains unclear. Hypothesis/Objectives: We hypothesised that adjunctive FMT improves clinical severity and reduces symptomatic medication use in dogs with cAD.
Vera Felten +9 more
wiley +1 more source