Results 41 to 50 of about 35,131 (202)
Design and Implementation of Medical Data Management System [PDF]
, 2015 近年来，大数据的快速发展及落地，为各行各业带来了前所未有的冲击，为医疗行业的信息化带来了新的解决方案。目前，传统的医院在信息化系统及电子健康档案系统方面已远远不能满足海量医疗数据的存储处理、分析挖掘以及多元化医疗数据服务等方面的要求。医疗数据经过生成及采集后，如何将异构、海量、实时、多样的数据进行高效存储，以实现大规模复杂健康数据的快速查询和准确响应；如何通过数据挖掘手段，对海量医疗数据进行深度分析，快速有效为用户提供有价值的医疗数据服务，达到未病先防的效果，成为大数据时代医疗领域需要解决的问题 ...
郑祥聪
core
Wildlife Letters, EarlyView.Although once abundant across its range, gray foxes (Urocyon cinereoargenteus) are purportedly declining. While range maps indicate that gray fox potentially occur throughout the central United States, contemporary distribution maps are needed. We developed a Habitat Suitability Model for six states, leveraging gray fox presence data in an ensemble ...
Daniel J. Benson +4 more
wiley +1 more source
Efficient lookup method of OpenFlow table based on predictive caching [PDF]
Jisuanji gongcheng, 2019 There are serious performance bottlenecks of flow table lookups as OpenFlow supports wildcard search.Therefore,a lookup method of OpenFlow table is proposed based on network traffic locality.By caching recent frequent connections in packet traffic and ...
FU Ming,HE Yang,XIONG Bing
doaj +1 more source
Kongjian kexue xuebao, 2023 核爆炸的大部分能量是以X射线形式释放的，研究X射线辐射特性对于天基核爆事件监测，当量反演都具有一定参考价值。根据核爆炸X射线能谱特性，构建了黑体辐射模型；根据NRLMSIS大气模型成分数据和高度密度数据，构建大气分层数值模型，并结合NIST数据库，构建分层大气质量吸收系数模型，提高了大气模型与大气质量吸收系数模型准确度。使用数值模拟程序对X射线在大气中的传输特性进行研究，模拟在临近空间高度核爆炸产生的X射线经过大气吸收后的能谱特性以及不同海拔高度点位的能注量。结果表明，在检测点高度恒定的情况下 ...
吕 致辉 +4 more
doaj +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source
Research of Clustering Method and Its Application for Big Data [PDF]
, 2015 近些年来，随着计算机科学与技术的快速发展，在很多行业中产生了越来越 多的海量数据信息。聚类作为数据挖掘的一个非常受关注的分支学科，在这种情 况下得到了长足的发展，一系列经典的聚类算法被研究者提出，但目前能应用于 大数据聚类的算法不多，ApacheMahout推出的聚类算法只有5种，其中有4种 基于Kmeans算法开发的，Spark官方推出的聚类算法目前只有Kmeans。一些效 果较好的聚类算法，它们的时间复杂度比较高，开发出适应大数据聚类的难度较 大。传统的Kmeans可以用于大数据聚类 ...
汪宜东
core
Insect Science, EarlyView.The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji +3 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2019 根据自治动力系统中周期跟踪性和极限跟踪性的定义，将其引入到非自治动力系统。研究了非自治动力系统中周期跟踪性和极限跟踪性的动力学性质，得到：（1）若拓扑共轭于，则F 具有周期跟踪性当且仅当G 具有周期跟踪性；（2）若拓扑共轭于，则F 具有极限跟踪性当且仅当G具有极限跟踪性；（3）若乘积系统（X × Y，F × G）具有周期跟踪性，则（X，F）和（Y，G）具有周期跟踪性。以上结论对非自治动力系统中跟踪性的发展有一定的促进作用。
JIZhanjiang(冀占江) +1 more
doaj +1 more source
Design and Implementation of Peer to Peer Credit Risk Management System Based on Big Data Analysis [PDF]
, 2015 作为互联网金融典型代表，P2P网络借贷引起社会各方面的高度关注。同时受经济全球化和全球信息化、人类社会发展和需求多样性、云计算和物联网技术深化应用等方面的影响，“大数据”(bigdata)已经成为IT领域和互联网上反复提及的热词。国内P2P网贷行业面临的系统风险、信用风险、平台风险等正在不断积累、扩大，如何有效防范P2P网络借贷风险迫在眉睫。本文从国内典型的P2P平台拍拍贷中抓取实际有效的数据，经过本系统分析得到结果，希望能够对P2P行业具有一定的指导作用 ...
郑旭
core
Methods in Ecology and Evolution, EarlyView.Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
wiley +1 more source