采用Web data mining对远程教育进行分析,根据受教育对象存在的个体差异,提出个性化远程学习系统的框架结构思想和个性化服务的理念,对相关信息进行数据挖掘并建立起一个集智能化、个性化为一体的远程教育系统,从而更好地改善远程教育...采用Web data mining对远程教育进行分析,根据受教育对象存在的个体差异,提出个性化远程学习系统的框架结构思想和个性化服务的理念,对相关信息进行数据挖掘并建立起一个集智能化、个性化为一体的远程教育系统,从而更好地改善远程教育服务的现状。展开更多
Background:Anthrax is a zoonotic infectious disease caused by Bacillus anthracis.Investigating the spatiotemporal characteristics of anthrax and the impact of meteorological factors on the incidence of anthrax is help...Background:Anthrax is a zoonotic infectious disease caused by Bacillus anthracis.Investigating the spatiotemporal characteristics of anthrax and the impact of meteorological factors on the incidence of anthrax is helpful for the prevention and control of anthrax.Methods:At first,we applied the Granger causality test to explore the spatiotemporal characteristics of anthrax transmission between the counties and cities of Gannan Tibetan Autonomous Prefecture,Gansu Province of China.Then,we constructed three generalized linear models to analyze the impact of meteorological factors on the monthly number of anthrax cases in Gannan Tibetan Autonomous Prefecture.Finally,we developed an easy-to-use online web server that integrates the above functions.Results:This study developed an online service website(ASTM,http://www.combio-lezhang.online/anthrax/index.html)for the analysis and visualization of anthrax,which not only can investigate the correlation of anthrax among different regions in Gannan Tibetan Autonomous Prefecture,but also can analyze the correlation between meteorological factors and!the number of anthrax cases.Conclusions:Our study not only explored spatiotemporal characteristics of anthrax transmission,but also analyzed the impact of seven meteorological factors on the monthly number of anthrax cases.Meanwhile,the online service website which integrates the above functions is useful for the prevention and control of anthrax.展开更多
With user-generated content, anyone can De a content creator. This phenomenon has infinitely increased the amount of information circulated online, and it is beeoming harder to efficiently obtain required information....With user-generated content, anyone can De a content creator. This phenomenon has infinitely increased the amount of information circulated online, and it is beeoming harder to efficiently obtain required information. In this paper, we describe how natural language processing and text mining can be parallelized using Hadoop and Message Passing Interface. We propose a parallel web text mining platform that processes massive amounts data quickly and efficiently. Our web knowledge service platform is designed to collect information about the IT and telecommunications industries from the web and process this in-formation using natural language processing and data-mining techniques.展开更多
Based on the latest technologies used in Web usage mining,this article mainly discusses the individual information service to Web users It gives many Web log based user clustering algorithms and Web page clustering al...Based on the latest technologies used in Web usage mining,this article mainly discusses the individual information service to Web users It gives many Web log based user clustering algorithms and Web page clustering algorithms These Web mining technologies can be used to effectively mine the characteristics of user behaviors on the Internet and guide the organization and re allocation of Web展开更多
基金supported by grants fiom the National Natural Science and Technology Major Project(No.2018ZX10201002)China Postdoctoral Science Foundation(No.2020M673221)the Fundamental Research Funds for the Central Universities(No.2020SCU12056).
文摘Background:Anthrax is a zoonotic infectious disease caused by Bacillus anthracis.Investigating the spatiotemporal characteristics of anthrax and the impact of meteorological factors on the incidence of anthrax is helpful for the prevention and control of anthrax.Methods:At first,we applied the Granger causality test to explore the spatiotemporal characteristics of anthrax transmission between the counties and cities of Gannan Tibetan Autonomous Prefecture,Gansu Province of China.Then,we constructed three generalized linear models to analyze the impact of meteorological factors on the monthly number of anthrax cases in Gannan Tibetan Autonomous Prefecture.Finally,we developed an easy-to-use online web server that integrates the above functions.Results:This study developed an online service website(ASTM,http://www.combio-lezhang.online/anthrax/index.html)for the analysis and visualization of anthrax,which not only can investigate the correlation of anthrax among different regions in Gannan Tibetan Autonomous Prefecture,but also can analyze the correlation between meteorological factors and!the number of anthrax cases.Conclusions:Our study not only explored spatiotemporal characteristics of anthrax transmission,but also analyzed the impact of seven meteorological factors on the monthly number of anthrax cases.Meanwhile,the online service website which integrates the above functions is useful for the prevention and control of anthrax.
文摘With user-generated content, anyone can De a content creator. This phenomenon has infinitely increased the amount of information circulated online, and it is beeoming harder to efficiently obtain required information. In this paper, we describe how natural language processing and text mining can be parallelized using Hadoop and Message Passing Interface. We propose a parallel web text mining platform that processes massive amounts data quickly and efficiently. Our web knowledge service platform is designed to collect information about the IT and telecommunications industries from the web and process this in-formation using natural language processing and data-mining techniques.
文摘Based on the latest technologies used in Web usage mining,this article mainly discusses the individual information service to Web users It gives many Web log based user clustering algorithms and Web page clustering algorithms These Web mining technologies can be used to effectively mine the characteristics of user behaviors on the Internet and guide the organization and re allocation of Web