Results 31 to 40 of about 10,637 (168)
Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis
Read the free Plain Language Summary for this article on the Journal blog. Abstract Recent years have witnessed a surge in research on the effects of multiple stressors in freshwater ecosystems. While studies have increased, the synthesis of their findings into a broader understanding of ecosystem‐level effects remains an ongoing endeavour. Leaf litter
Graciela Medina Madariaga+6 more
wiley +1 more source
A standard approach for including climate change responses in IUCN Red List assessments
Abstract The International Union for Conservation of Nature (IUCN) Red List is a central tool for extinction risk monitoring and influences global biodiversity policy and action. But, to be effective, it is crucial that it consistently accounts for each driver of extinction.
Giordano Mancini+7 more
wiley +1 more source
Abstract Private land protection is an important and growing tool to address biodiversity loss and climate change. Thus, better empirical evidence on the effectiveness of private land protection and organizational practices, such as targeting of lands for protection and choice of protection mechanism (i.e., fee simple land acquisition and conservation ...
Sarah Hagen+5 more
wiley +1 more source
N‐doped 3D‐graphene/Si heterojunction as a SERS substrate be fabricated by a one‐stage process. In practical detected, 10−8 M thiram was precisely detected in apple peel extract. Nitrogen‐doped three‐dimensional graphene (N‐doped 3D‐graphene) is a graphene derivative with excellent adsorption capacity, large specific surface area, high porosity, and ...
Guanglin Zhang+12 more
wiley +1 more source
模糊系统是一种可解释性强的人工智能方法,经典Wang-Mendel(WM)方法因能从数据中自动获取模糊规则,而成为一种重要的智能建模方法。但是该方法存在规则数目较多、精度不高等不足,且目前的改进方法普遍存在计算复杂、效率低等问题。为此,提出一种改进遗传算法与基于支持度的规则约简相结合的模糊系统优化建模新方法——遗传模糊系统(GFS),通过优化模糊系统的结构及隶属函数参数,由目标函数的不同组合构成GFS1、GFS2与GFS3这3种模型的具体实现算法。在标准及加噪的电能输出数据集上进行模糊建模试验 ...
杜宏庆+4 more
doaj
基于实验得到的单晶结构建立了理论计算的结构模型,旨在用计算结果揭示实验所获得结构的微观驱动力,即弱相互作用的重要模式.通过对实验结构的异构化处理,建立异构体模型并进行比对,可以给出实验结构在能量上的优势.采用密度泛函方法对BIPy的2种同晶异形体Ⅰ(实验获得的单晶结构)和Ⅱ(根据Ⅰ的结构设计的异构体)与水分子之间的氢键相互作用进行了计算.结果表明,BIPy-Ⅰ在能量上具有明显优势,进一步证明了水分子在水分子夹中更适合作为氢键的受体.虽然BIPy-Ⅱ构型也处于势能面上的稳定点,但是实验无法得到其单晶结构 ...
WANGXiaojing(王肖璟)+3 more
doaj +1 more source
Cross‐project defect prediction (CPDP) aims to identify defect‐prone software instances in one project (target) using historical data collected from other software projects (source), which can help maintainers allocate limited testing resources reasonably.
Nana Zhang+3 more
wiley +1 more source
模糊系统作为一种万能逼近器具有很强的可解释性,已被广泛应用在各个领域。尽管目前模糊系统的理论研究不够成熟,仍然存在诸如规则太多、优化困难、维度诅咒等问题,难以处理高维大数据。尽管深度神经网络取得了突出进展,能很好处理图像和语音等大数据,但其可解释性不好,难以用于安全相关的重要场合。因此,非常有必要研究一种基于模糊系统的可解释性强的人工智能算法。结合深度神经网络和模糊系统两者的优点,研究深度模糊系统及其算法,将有可能解决高维大数据问题。主要对模糊系统的发展历程与研究进展分别进行详细阐述 ...
陈德旺, 蔡际杰, 黄允浒
doaj
为实现海量大数据的高效访问与处理,在资源与服务发现的基础上,探讨了一种云格环境下使用网络距离预测的方法来完成计算资源服务节点的选择机制.并从提高系统性能的角度,针对用户偏好,提出了 一种可计算资源与服务的高效调配模型,来实现密集型数据的高性能计算;最后实验验证了本调配模型具有的可行性与针对性.
ZENGZhi(曾志)+4 more
doaj +1 more source
Pairwise-based visual labeling system for event-tracking data(基于成对关系的埋点数据可视化标注系统)
Event-tracking technology embeds special code within applications to collect data during runtime, which aids developers in performance analysis and evaluation. Multidimensional event-tracking data is often automatically analyzed through evaluation models
孙嘉顺(SUN Jiashun)+6 more
doaj +1 more source