The Ministry of Education and the State Council Information Office have named Renmin University of China as one of the human rights national education and training bases. This shows the full affirmation and trust in t...The Ministry of Education and the State Council Information Office have named Renmin University of China as one of the human rights national education and training bases. This shows the full affirmation and trust in the university's education, research and training work and also represents encouragement for its future work.展开更多
Half centuries of follow-up survey has enabled the architects and urban planners to design rationally by the aid of planning Nonetheless, limitation has occurred at planning because city has been changing its utility ...Half centuries of follow-up survey has enabled the architects and urban planners to design rationally by the aid of planning Nonetheless, limitation has occurred at planning because city has been changing its utility in accordance with its users' demand. In this paper, the authors proposed a method to analyze trait of users in market areas near stations by analyzing location based social network. After the datum collection from geotagged tweets, these GPS (global positioning system) datum were plotted to map attained from yahoo open location platform. Then the morphological analysis and terminology extraction system extracted the keywords and their scores. After calculating the distance from stations and users' GPS coordination, the authors extracted the array of keywords and corresponding scores in some station market area. Lastly, ratios of all users' scores and city's scores were calculated to examine the locality. Full combination of data collection, natural language processing and visualization enabled the authors to envisage distribution of collective background in city.展开更多
Location based social networks( LBSNs) provide location specific data generated from smart phone into online social networks thus people can share their points of interest( POIs). POI collections are complex and c...Location based social networks( LBSNs) provide location specific data generated from smart phone into online social networks thus people can share their points of interest( POIs). POI collections are complex and can be influenced by various factors,such as user preferences,social relationships and geographical influence. Therefore,recommending new locations in LBSNs requires to take all these factors into consideration. However,one problem is how to determine optimal weights of influencing factors in an algorithm in which these factors are combined. The user similarity can be obtained from the user check-in data,or from the user friend information,or based on the different geographical influences on each user's check-in activities. In this paper,we propose an algorithm that calculates the user similarity based on check-in records and social relationships,using a proposed weighting function to adjust the weights of these two kinds of similarities based on the geographical distance between users. In addition,a non-parametric density estimation method is applied to predict the unique geographical influence on each user by getting the density probability plot of the distance between every pair of user's check-in locations. Experimental results,using foursquare datasets,have shown that comparisons between the proposed algorithm and the other five baseline recommendation algorithms in LBSNs demonstrate that our proposed algorithm is superior in accuracy and recall,furthermore solving the sparsity problem.展开更多
In April, the Ministry of Public Health announced the shutdown of the National Committee for Oral Health (NCOH). Corruption, it seems, has once again raised its ugly head. This organization, which is not an agency und...In April, the Ministry of Public Health announced the shutdown of the National Committee for Oral Health (NCOH). Corruption, it seems, has once again raised its ugly head. This organization, which is not an agency under the government, but has some government affiliation, allegedly has raked in millions of yuan in illegal profits for the past 18 years by making unauthorized approvals for oral health care products. It is widely believed that the situation involving NCOH reflects the lack of government credit management because of the loopholes in the overall system. Commenting on NCOH dissolution, Professor Li Shuguang from China University of Political Science and Law believes that, while to reform public service units within a short period of time is important, the final solution is to set up a system that is based on the rule of law.展开更多
文摘The Ministry of Education and the State Council Information Office have named Renmin University of China as one of the human rights national education and training bases. This shows the full affirmation and trust in the university's education, research and training work and also represents encouragement for its future work.
文摘Half centuries of follow-up survey has enabled the architects and urban planners to design rationally by the aid of planning Nonetheless, limitation has occurred at planning because city has been changing its utility in accordance with its users' demand. In this paper, the authors proposed a method to analyze trait of users in market areas near stations by analyzing location based social network. After the datum collection from geotagged tweets, these GPS (global positioning system) datum were plotted to map attained from yahoo open location platform. Then the morphological analysis and terminology extraction system extracted the keywords and their scores. After calculating the distance from stations and users' GPS coordination, the authors extracted the array of keywords and corresponding scores in some station market area. Lastly, ratios of all users' scores and city's scores were calculated to examine the locality. Full combination of data collection, natural language processing and visualization enabled the authors to envisage distribution of collective background in city.
文摘Location based social networks( LBSNs) provide location specific data generated from smart phone into online social networks thus people can share their points of interest( POIs). POI collections are complex and can be influenced by various factors,such as user preferences,social relationships and geographical influence. Therefore,recommending new locations in LBSNs requires to take all these factors into consideration. However,one problem is how to determine optimal weights of influencing factors in an algorithm in which these factors are combined. The user similarity can be obtained from the user check-in data,or from the user friend information,or based on the different geographical influences on each user's check-in activities. In this paper,we propose an algorithm that calculates the user similarity based on check-in records and social relationships,using a proposed weighting function to adjust the weights of these two kinds of similarities based on the geographical distance between users. In addition,a non-parametric density estimation method is applied to predict the unique geographical influence on each user by getting the density probability plot of the distance between every pair of user's check-in locations. Experimental results,using foursquare datasets,have shown that comparisons between the proposed algorithm and the other five baseline recommendation algorithms in LBSNs demonstrate that our proposed algorithm is superior in accuracy and recall,furthermore solving the sparsity problem.
文摘In April, the Ministry of Public Health announced the shutdown of the National Committee for Oral Health (NCOH). Corruption, it seems, has once again raised its ugly head. This organization, which is not an agency under the government, but has some government affiliation, allegedly has raked in millions of yuan in illegal profits for the past 18 years by making unauthorized approvals for oral health care products. It is widely believed that the situation involving NCOH reflects the lack of government credit management because of the loopholes in the overall system. Commenting on NCOH dissolution, Professor Li Shuguang from China University of Political Science and Law believes that, while to reform public service units within a short period of time is important, the final solution is to set up a system that is based on the rule of law.