International Conference on Crowd Science and Engineering最新文献_第6页

A Weighted Multi-attribute Method for Personalized Recommendation in MOOCs mooc个性化推荐的加权多属性方法

International Conference on Crowd Science and Engineering Pub Date : 2017-07-06 DOI: 10.1145/3126973.3126981

Yuqin Wang, Bing Liang, Wen Ji, Shiwei Wang, Yiqiang Chen

{"title":"A Weighted Multi-attribute Method for Personalized Recommendation in MOOCs","authors":"Yuqin Wang, Bing Liang, Wen Ji, Shiwei Wang, Yiqiang Chen","doi":"10.1145/3126973.3126981","DOIUrl":"https://doi.org/10.1145/3126973.3126981","url":null,"abstract":"In recent years, with the rapid development of MOOC (massive open online course), more and more people get knowledge from the Internet. The big data analysis for MOOC has become a new research direction and it has been a focus that how to recommend individually personalized videos for MOOC users. To date, the most widely used personalized recommendation technology is collaborative filtering (CF) technology. In this paper, we propose a personalized recommendation algorithm---multi-attribute weight algorithm (MAWA) based on CF. Firstly, MAWA calculates separately the weights of the attributes and attribute values of the resources for the target user. Secondly, the two weights of a video are used to get a recommendation value. Finally, the resources with N highest recommendation values are recommended for the target users. The MAWA in this paper makes up for the shortcomings of traditional CF algorithm and it can be shown from the experiment in this paper that the recall rate of MAWA is 28.3% higher than CF, which means that the recommendation results of MAWA is more accurate than those of CF. The contribution of this paper is to weight the attributes and attribute values respectively, which can reflect the users' preferences in both coarse granularity and fine granularity.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Design Tradeoffs for Cloud-Based Ambient Assisted Living Systems 基于云环境辅助生活系统的设计权衡

International Conference on Crowd Science and Engineering Pub Date : 2017-07-06 DOI: 10.1145/3126973.3129308

Yi Dong, Yonggang Wen, Han Hu, C. Miao, Cyril Leung

{"title":"Design Tradeoffs for Cloud-Based Ambient Assisted Living Systems","authors":"Yi Dong, Yonggang Wen, Han Hu, C. Miao, Cyril Leung","doi":"10.1145/3126973.3129308","DOIUrl":"https://doi.org/10.1145/3126973.3129308","url":null,"abstract":"Ambient assisted living (AAL) has received considerable attention due to its ability to provide services to the elderly by sensors and actuators. However, building such a system is challenging on two fronts. First, the tradeoff between accuracy and monetary cost should be understood. Accuracy of each sensor can be empirically estimated from its sample rate. Typically, higher rate indicates higher accuracy. As a result, higher rate requires more computation resources to process the sampled data, incurring more monetary cost. Second, user needs change frequently. Thus, we need a resource allocation scheme that is (a) able to strike a good balance between accuracy and monetary cost and (b) adaptive enough to meet the frequently changing needs. Unfortunately, several seemingly natural solutions fail on one or more fronts (e.g., simple one shot optimizations). As a result, the potential benefits promised by these prior efforts remain unrealized. To fill the gap, we address these challenges and present the design and analysis of a low-complexity online algorithm to minimize the long-term accuracy-monetary cost on a queue length based control. The design is driven by insights that queue-lengths can be viewed as Lagrangian dual variables and the queue-length evolutions play the role of subgradient updates. Therefore, the control decisions depend only on the instantaneous information and can adapt to the changing needs. Simulations demonstrate that the proposed algorithm can strike a good balance between accuracy and monetary costs. Moreover, the asymptotic optimality of the proposed algorithm has been shown by rigorous analysis and numerical results.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128174778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Holographic Personalized Portal for Industrial Ecological System 工业生态系统全息个性化门户

International Conference on Crowd Science and Engineering Pub Date : 2017-07-06 DOI: 10.1145/3126973.3126996

Yadong Huang, Y. Chai, Yi Liu, Xiang Gu

引用次数: 2

Study of E-commerce Transaction System's Division of Labor Based on Multi-agent Simulation 基于多智能体仿真的电子商务交易系统分工研究

International Conference on Crowd Science and Engineering Pub Date : 2017-07-06 DOI: 10.1145/3126973.3126995

Li Wang, Y. Chai, Yi Liu

引用次数: 0

Keynote addresses: Keynote speech I: The development of innovative algorithms/methods and software tools - Object-based image analysis for multi-scale thematic mapping of physical and built environments (Tentative title) 主题演讲一:创新算法/方法和软件工具的发展——用于物理和建筑环境多比例尺主题映射的基于对象的图像分析(暂定标题)

International Conference on Crowd Science and Engineering Pub Date : 2016-10-06 DOI: 10.1109/ICCSE.2016.7581531

Jonathan Li

引用次数: 0

Development and application of the whole automatic determination machine for antibiotic tube dish method / turbidity method 抗生素管皿法/浊度法全自动测定机的研制与应用

International Conference on Crowd Science and Engineering Pub Date : 2015-07-20 DOI: 10.2991/ICCSE-15.2015.40

Lijian Zhang, Haina Cui, Tingting Wang

{"title":"Development and application of the whole automatic determination machine for antibiotic tube dish method / turbidity method","authors":"Lijian Zhang, Haina Cui, Tingting Wang","doi":"10.2991/ICCSE-15.2015.40","DOIUrl":"https://doi.org/10.2991/ICCSE-15.2015.40","url":null,"abstract":"product is developed on the basis of the technical cooperation projects of the shandong xin yuan Thai letter electronic technology co., LTD.,using the luoyang LanFei PLC and touch screen, and spec trophotometer. It is easily to realize Add sample, full automatic measurement and report. A dose, dose and dose of antibiotics and other method can be realize. Intr oduction Traditional antibiotics turbidity method or tube plate method microbiological assays and need a variet y of experimental equipment, manual operation is complicated and there are many man-made factors, an increase of the experimental results of error rate; furthermore sterile laboratory established, not only need to increase the test space, and add test cost. Antibiotic microbiological automatic determination instrument system in order to solve the problems ex isting in manual operation, use antibiotic microbiological test principle, according to requireme nts of the new edition of the \"Pharmacopoeia of antibiotic titer determination method, integr ated modern optics, electronics and automation technology and years of practical experience and design.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132851953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Markov Model in Human Resource Supply Forecasting in Enterprises 马尔可夫模型在企业人力资源供给预测中的应用

International Conference on Crowd Science and Engineering Pub Date : 2015-07-20 DOI: 10.2991/ICCSE-15.2015.26

Wanyin Du, Shou Li

引用次数: 3

An Experimental Case Study for the Course of 'Testing Technology and Data Processing' “测试技术与数据处理”课程的实验案例研究

International Conference on Crowd Science and Engineering Pub Date : 1900-01-01 DOI: 10.1007/978-981-99-2449-3_20

Siliang Lu, Xiaoxian Wang, Bin Ju, Yongbin Liu, Feng Xie, Minhui Xia

引用次数: 0

Course Homework Reform in Universities Based on Extended Reality 基于扩展现实的高校课程作业改革

International Conference on Crowd Science and Engineering Pub Date : 1900-01-01 DOI: 10.1007/978-981-99-2449-3_25

Jinrong Fu, Yiwen Liu, Chunqiao Mi, Xiaoning Peng, Jianhua Xiao

引用次数: 0

Teaching Reform and Practice for the Course of Web Application Development Technology Under the Background of Online Education 网络教育背景下《Web应用开发技术》课程教学改革与实践

International Conference on Crowd Science and Engineering Pub Date : 1900-01-01 DOI: 10.1007/978-981-99-2446-2_31

Dong Yi, Xiaoning Peng, Xian Zhang, Chunqiao Mi, Yiwen Liu, Taiguo Qu

引用次数: 0