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外卖用户差评影响因素研究——基于文本评论和Word2vec 被引量:3
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作者 曹军 王虎 《现代商贸工业》 2017年第2期55-56,共2页
以"百度外卖"和"美团外卖"上的用户差评评论为研究对象,通过利用Word2vec工具对差评评论特征词汇进行聚类,发掘外卖用户差评影响因素。在经过评论抓取、分词、特征词发掘、关键词选取以及基于Word2vec的聚类过程后... 以"百度外卖"和"美团外卖"上的用户差评评论为研究对象,通过利用Word2vec工具对差评评论特征词汇进行聚类,发掘外卖用户差评影响因素。在经过评论抓取、分词、特征词发掘、关键词选取以及基于Word2vec的聚类过程后,最终得到用户差评影响因素,并针对影响因素对外卖商家经营提出了建议。 展开更多
关键词 差评影响因素 词语聚类 Word2vec
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Spatial and Temporal Differences of Urban Land Comprehensive Carrying Capacity in Guangxi
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作者 杨如军 邢玉玲 詹长根 《Agricultural Science & Technology》 CAS 2017年第6期1126-1132,共7页
The comprehensive carrying capacity of urban land can reflect the re- source level, economic scale, social development and environmental pressure of ur- ban land carrying. The assessment indicator system of urban land... The comprehensive carrying capacity of urban land can reflect the re- source level, economic scale, social development and environmental pressure of ur- ban land carrying. The assessment indicator system of urban land comprehensive carrying capacity was constructed from the 4 aspects of resource, economy, society, environment, and principal component analysis and cluster analysis were used to evaluate the urban land comprehensive carrying capacity of Guangxi and the 14 cities in 2005-2014, and analyzed its spatial and temporal characteristics as well as the driving forces, with the aim to provide references for improving the urban land comprehensive carrying capacity. The results showed that, the overall urban land comprehensive carrying capacity in Guangxi increased in 2005-2014, and there were significant differences in the land comprehensive carrying capacities among the cities in Guangxi in 2005-2014, in which Liuzhou, Guilin, Nanning belonged to the regions with the highest carrying capacity, while Beihai, Yulin, Wutong belonged to the regions with high carrying capacity, and the carrying capacities of the other cities changed with the changes of time. The economic development degree was an important factor influencing urban land comprehensive carrying capacity, but could not directly represent the urban land comprehensive carrying capacity level. 展开更多
关键词 Urban land comprehensive carrying capacity GUANGXI Principal compo- nent analysis Temporal and spatial difference Assessment indicator system Influ- encing factors
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