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基于大数据分析的高校毕业生就业推荐模型研究 被引量:4
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作者 李恒凯 曹航 +1 位作者 王秀丽 刘义 《中国冶金教育》 2019年第3期93-97,共5页
采用网络爬虫技术从网络上爬取海量招聘和就业数据,结合聚类分析算法、多元线性回归模型及分词提取关键字方法,构建了一个结合高校、学生和企业的开放性就业信息推荐模型。基于地理信息技术开发可视化的就业信息大数据分析平台系统,并... 采用网络爬虫技术从网络上爬取海量招聘和就业数据,结合聚类分析算法、多元线性回归模型及分词提取关键字方法,构建了一个结合高校、学生和企业的开放性就业信息推荐模型。基于地理信息技术开发可视化的就业信息大数据分析平台系统,并以地理信息科学专业就业为例,对系统进行应用。系统将公司及工作介绍的文本数据以标签云、词图云的方式展示,通过分词集合匹配分析及多元线性模型算法,实现为用户推荐工作及为公司推荐用户的功能,从而解决高校毕业生择业难题。 展开更多
关键词 就业推荐 大数据分析 推荐模型 平台系统
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Impacts and effects of government regulation on farmers' responses to drought: A case study of North China Plain
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作者 LI Xiaoyun YANG Yu +1 位作者 llu yi LIU Hui 《Journal of Geographical Sciences》 SCIE CSCD 2017年第12期1481-1498,共18页
Frequent extreme weather events like drought, etc. in the context of climate change present huge challenges to agricultural production. To find out if farmers have taken measures against them and identify governments... Frequent extreme weather events like drought, etc. in the context of climate change present huge challenges to agricultural production. To find out if farmers have taken measures against them and identify governments' impact on their response measures are the foundation of and key to further improving relevant policies and farmers' responsiveness. Taking the North China Plain as an example, the study analyzes farmers' responses to fre- quent climate change-induced drought, and assesses the impacts of governments' early- warning, policy support and other factors on farmers' responses based on questionnaire survey data and an econometric approach. The results show that: (1) Farmers are responsive to drought, and they are more likely to take measures as the degree of drought deepening. (2) Governments' regulation affects farmers' responses, although only part of its regulation measures has remarkable effects. Governments' early-warning messages can increase the possibility of farmers' responding to drought, however, only when they get the early-warning in all the processes including before, during, and after disasters can the effects be significant. Currently, as the primary channel through which early-warning information is released, tele- vision cannot change farmers' behaviors significantly. Early-warning is most effective when spread via two or more types of channels. In addition, governments' (especially town and village level institutions') policy support has certain impacts on farmers' responses to drought, yet with less prominent effects in disaster years than in normal years; to provide subsidies, as a regulation measure, can encourage farmers' initiative a lot in adopting response measures, but most of the farmers haven't got support from any institutions. Both the structure and strength of government regulation need to be improved. (3) Farmers with different conditions respond differently. Farmer households in irrigation areas, those whose farmland is lower fragmented, and those with numerous agricultural family members tend to take response measures. The study can provide scientific reference to the making of relevant regulation policies under the background of acidifications. 展开更多
关键词 government regulation DROUGHT farmer households response behaviors North China Plain
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