CN107679665A - 一种基于大数据的海洋环境灾害预警方法 - Google Patents

一种基于大数据的海洋环境灾害预警方法 Download PDF

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CN107679665A
CN107679665A CN201710944294.7A CN201710944294A CN107679665A CN 107679665 A CN107679665 A CN 107679665A CN 201710944294 A CN201710944294 A CN 201710944294A CN 107679665 A CN107679665 A CN 107679665A
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崔振东
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Abstract

一种基于大数据的海洋环境灾害预警方法,所述的预警方法是:(1)基于一致性Hash算法的分布式网络爬虫方法,获取海洋环境历史原始指标时空数据库DRO和海洋环境历史评价指标时空数据库DEO;形成数据集合Dro(Ri(xi1,xi2,…xij),ti),Deo(Ei(yi1,yi2,…yim),ti);(2)数据集合的标准化处理;(3)建立海洋环境评价与灾害预警模型:(3.1)基于Dro(Ri(xi1,xi2,…xij),ti),Deo(Ei(yi1,yi2,…yij),ti),利用Kringing方法建立海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti)),进而开展海洋环境各指标的相关性分析与环境健康水平的评价,建立健康评价模型;(3.2)基于Dro(Ri(xi1,xi2,…xij),ti),Deo(Ei(yi1,yi2,…yij),ti)大数据,基于支持向量机SVM方法,对分类指标与综合指标进行预警。

Description

一种基于大数据的海洋环境灾害预警方法
技术领域
本发明涉及的是一种基于大数据的海洋环境灾害预警方法,属于海洋环境灾害预测技术领域。
背景技术
人类海洋开发给海洋环境和生态带来了巨大的影响,近年来环境灾害频发,给渔农业生产带来了重要的影响;掌握海洋环境的演变规律,全方位感知海洋开发和利用对海岛环境和生态的影响,是海洋经济科学、良性、健康发展的基础和保障;及时准确预测环境灾害,能够切实增强海洋经济发展中的防灾、减灾能力,推进海洋经济稳定发展。
通过传感器测定导电性、热敏度、光谱分析、透明度等手段获取流体中的PH值、微生物、重金属、叶绿素等环境生态相关检测数据;而生物栖息密度、种群的数量等,借助于人工分析的数据,如部分微量元素指标的获取。由于海洋环境的影响因素众多,海洋环境健康与否受多重因素的制约而产生缓慢的变化,甚至导致不可逆的环境灾难;如何基于大数据、物联网和人工智能技术,准确感知海洋环境的变化,并对可能出现的灾难及时预警,对海洋环境的保护和海洋经济的发展至关重要。
发明内容
本发明的目的在于克服现有技术存在的不足,而提供一种基于海洋环境大数据挖掘、基于网络爬虫实时感知海洋灾害事件以及不断容纳事件构建自我学习型的海洋环境灾害预警方法。
本发明的目的是通过如下技术方案来完成的,一种基于大数据的海洋环境灾害预警方法,所述的预警方法是:
(1)基于一致性Hash算法的分布式网络爬虫方法,获取海洋环境历史原始指标时空数据库DRO和海洋环境历史评价指标时空数据库DEO;形成数据集合Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yim),ti);
其中Ri和Ei分别是ti时刻主要海洋环境影响因素的原始指标向量和评价指标向量,xij为i时刻第t个指标的原始值,yim为i时刻第m个指标的评价值;
(2)数据集合的标准化处理;把Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yim),ti)中的海洋环境影响因素的原始指标向量和评价指标向量进行标准化处理,生成SDro(SRi(ri1,ri2,...rij),ti),SDeo(SEi(si1,si2,...sim);
其中SRi和SEi分别是ti时刻主要海洋环境影响因素的原始指标向量和评价指标向量,xij为i时刻第t个指标的原始值,yim为i时刻第m个指标的评价值;ti)(标准化方法,其中kj根据第i个指标的不同特点取的适度值);
(3)建立海洋环境评价与灾害预警模型:
(3.1)基于Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yij),ti),利用Kringing方法建立海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti)),进而开展海洋环境各指标的相关性分析与环境健康水平的评价,建立健康评价模型MH(Dro(Ri,ti),Deo(Ei,ti));
(3.2)基于Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yij),ti)大数据,基于支持向量机SVM方法,对分类指标与综合指标进行预警。
作为优选:所述大数据的完善和建模与预警模型的升级与完善如下:
(4.1)定期启动网络爬虫程序,甄别删选有效数据,增加海洋环境相关数据库中的数据记录;
(4.2)基于海洋环境监测物联网数据,增加海洋环境数据记录;
(4.3)基于新增数据记录,升级和完善海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti))和健康评价模型MH(Dro(Ri,ti),Deo(Ei,ti))。
本发明主要是基于海洋环境大数据挖掘、基于网络爬虫实时感知海洋灾害事件以及不断容纳事件构建自我学习型而设立的海洋环境灾害预警方法,它能全方位感知海洋开发和利用对海岛环境和生态的影响,是海洋经济科学、良性、健康发展的基础和保障;能及时准确预测环境灾害,能够切实增强海洋经济发展中的防灾、减灾能力,推进海洋经济稳定发展。
附图说明
图1是本发明所述的海洋环境的环境感知和灾难预警框架图。
具体实施方式
下面将结合附图及具体实施例对本发明作详细的介绍:图1所示,一种基于大数据的海洋环境灾害预警方法,具体包括:
(1)基于一致性Hash算法的分布式网络爬虫方法,获取海洋环境历史原始指标时空数据库DRO和海洋环境历史评价指标时空数据库DEO;形成数据集合Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yim),ti)。其中Ri和Ei分别是ti时刻主要海洋环境影响因素的原始指标向量和评价指标向量,xij为i时刻第t个指标的原始值,yim为i时刻第m个指标的评价值;
(2)数据集合的标准化处理:把Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yim),ti)中的海洋环境影响因素的原始指标向量和评价指标向量进行标准化处理,生成SDro(SRi(ri1,ri2,...rij),ti),SDeo(SEi(si1,si2,...sim);
其中SRi和SEi分别是ti时刻主要海洋环境影响因素的原始指标向量和评价指标向量,xij为i时刻第t个指标的原始值,yim为i时刻第m个指标的评价值;ti)(标准化方法,其中kj根据第i个指标的不同特点取的适度值);
(3)建立海洋环境评价与灾害预警模型:
(3.1)基于Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yij),ti),利用Kringing方法建立海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti)),进而开展海洋环境各指标的相关性分析与环境健康水平的评价,建立健康评价模型MH(Dro(Ri,ti),Deo(Ei,ti));
(3.2)基于Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yij),ti)大数据,基于支持向量机SVM方法,对分类指标与综合指标进行预警;
(4)大数据的完善和建模与预警模型的升级与完善:
(4.1)定期启动网络爬虫程序,甄别删选有效数据,增加海洋环境相关数据库中的数据记录;
(4.2)基于海洋环境监测物联网数据,增加海洋环境数据记录;
(4.3)基于新增数据记录,升级和完善海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti))和健康评价模型MH(Dro(Ri,ti),Deo(Ei,ti));
(5)海洋环境渐变模拟模型、健康评价模型和预警知识,提供信息服务。
图1中所示的内容可以作为上述实施例的补充和扩展,因此本领域的技术人员在了解本发明的内容基础上,结合附图是能够实施的,并不需要作出任何创造性的劳动。

Claims (2)

1.一种基于大数据的海洋环境灾害预警方法,其特征在于所述的预警方法是:
(1)基于一致性Hash算法的分布式网络爬虫方法,获取海洋环境历史原始指标时空数据库DRO和海洋环境历史评价指标时空数据库DEO;形成数据集合Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yim),ti);
其中Ri和Ei分别是ti时刻主要海洋环境影响因素的原始指标向量和评价指标向量,xij为i时刻第t个指标的原始值,yim为i时刻第m个指标的评价值;
(2)数据集合的标准化处理;把Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yim),ti)中的海洋环境影响因素的原始指标向量和评价指标向量进行标准化处理,生成SDro(SRi(ri1,ri2,...rij),ti),SDeo(SEi(si1,si2,...sim);
其中SRi和SEi分别是ti时刻主要海洋环境影响因素的原始指标向量和评价指标向量,xij为i时刻第t个指标的原始值,yim为i时刻第m个指标的评价值;ti)(标准化方法,其中kj根据第i个指标的不同特点取的适度值);
(3)建立海洋环境评价与灾害预警模型:
(3.1)基于Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yij),ti),利用Kringing方法建立海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti)),进而开展海洋环境各指标的相关性分析与环境健康水平的评价,建立健康评价模型MH(Dro(Ri,ti),Deo(Ei,ti));
(3.2)基于Dro(Ri(xi1,xi2,...xij),ti),Deo(Ei(yi1,yi2,...yij),ti)大数据,基于支持向量机SVM方法,对分类指标与综合指标进行预警。
2.根据权利要求1所述的基于大数据的海洋环境灾害预警方法,其特征在于所述大数据的完善和建模与预警模型的升级与完善如下:
(4.1)定期启动网络爬虫程序,甄别删选有效数据,增加海洋环境相关数据库中的数据记录;
(4.2)基于海洋环境监测物联网数据,增加海洋环境数据记录;
(4.3)基于新增数据记录,升级和完善海洋环境渐变模拟模型MS(Dro(Ri,ti),Deo(Ei,ti))和健康评价模型MH(Dro(Ri,ti),Deo(Ei,ti))。
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Application publication date: 20180209