Subjects: Library Science，Information Science >> Information Science submitted time 2017-10-11 Cooperative journals: 《数据分析与知识发现》
Abstract： [Objective] This study aims to solve the problems of the existing pre-release box office prediction models due to data constraints and other factors. [Methods] We first retrieved microblog comments, and then used SVM to identify explicit consumer intention, namely strong positive comments. Second, we modified the traditional sentiment classification schemes to build a Chinese microblog sentiment dictionary based on HowNet. Finally, we defined a new user influence feature and used the BP neural network to predict box office. [Results] The proposed model could forecast the opening box office more accuately. [Limitations] Due to inadequate corpus, the sentiment dictionary may not work well for all microblog movie comments. A dynamic forecasting model was not established between the pre-release and post-release period. [Conclusions] The proposed model can effectively predict opening box office.
Subjects: Medicine, Pharmacy >> Preventive Medicine and Hygienics submitted time 2024-03-26 Cooperative journals: 《中国全科医学》
Abstract： Background The level and quality of diagnosis and treatment of Helicobacter pylori（Hp）infections in Shanghai's community health service Institutions is unclear，and there is a lack of systematic evaluation and monitoring. Objective To understand the current status of diagnosis，treatment and management of Helicobacter pylori（Hp）infection in community health centers in Shanghai，to evaluate the quality of diagnosis and treatment，and to explore the problems and improvement measures. Method A questionnaire was distributed to a total of 249 community health centers in 16 administrative districts of Shanghai and 3 875 general practitioners（GPs）working in the community health centers from May to June 2022 to investigate the standardization of prescriptions for the eradication of Hp infections in the community health centers，the detection of Hp infections，the provision of drugs for the eradication of Hp infections，the management of Hp infections，the difficulties of Hp infections in the treatment of Hp infections，as well as the knowledge of community-based GPs on the diagnosis and treatment of Hp infections. Result The result of the prescription eradication program for Hp infection in primary health care facilities in Shanghai was only 32.0 percent correct. The proportion of health service centers with the ability to conduct Hp infection testing in primary healthcare institutions in Shanghai is high，nearly 80%. Most of the community health service centers were able to equip the basic medicines needed for the eradication of Hp，but the rate of bismuth equipment was low，54.6%. The rate of Hp diagnosis and treatment standard supervision was 80.0%. The demand for the training of standardized diagnosis and treatment of Hp infections was high，accounting for 66.7%. The main difficulties in Hp infection diagnosis and treatment were incomplete drug provision，insufficient doctor's diagnosis and treatment ability and insufficient equipment. Community general practitioners do not have enough basic knowledge about the diagnosis and treatment of Hp infection. Conclusion The capacity to conduct Hp testing needs to be further strengthened in primary care organizations in Shanghai，especially in remote community health service centers，including the purchase of more Hp-related testing equipment and reagents，and the completion of related medications needed for the eradication of Hp. In addition，it is necessary to further strengthen the standardized diagnosis and treatment training of Hp infection for community health centers，improve the diagnosis and treatment ability of general practitioners on Hp infection，and at the same time，strengthen the supervision of Hp diagnosis and treatment standardization，so as to further improve the diagnosis and treatment ability of community general practitioners on Hp infection.
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