Yuqin Wang, Bing Liang, Wen Ji, Shiwei Wang, Yiqiang Chen
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.
{"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}
Yi Dong, Yonggang Wen, Han Hu, C. Miao, Cyril Leung
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.
{"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}
E-commerce1, being one of the most important channel of transaction, has experienced explosive growth in almost all areas during the past two decades. And more intelligent and convenient will be the trend of e-commerce. In this paper, we propose a holographic personalized portal for industrial ecological system. The holographic personality portal, consisting of accurate ontology, reliable supply, intelligent demand, and smart cyberspace, is based on holographic enterprises, commodities and consumers. Each participant has his own personalized portal, through which all the interactions are completed.
{"title":"Holographic Personalized Portal for Industrial Ecological System","authors":"Yadong Huang, Y. Chai, Yi Liu, Xiang Gu","doi":"10.1145/3126973.3126996","DOIUrl":"https://doi.org/10.1145/3126973.3126996","url":null,"abstract":"E-commerce1, being one of the most important channel of transaction, has experienced explosive growth in almost all areas during the past two decades. And more intelligent and convenient will be the trend of e-commerce. In this paper, we propose a holographic personalized portal for industrial ecological system. The holographic personality portal, consisting of accurate ontology, reliable supply, intelligent demand, and smart cyberspace, is based on holographic enterprises, commodities and consumers. Each participant has his own personalized portal, through which all the interactions are completed.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"2 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":"114993967","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}
The e-commerce transaction system's division of labor of is an important problem. It is of great significance for evaluating the development level and forecast the development direction of e-commerce. However, there is a certain disparity between the current mainstream research model and the reality, which leads to a biased result. This paper puts forward to a definition of transaction efficiency based on transaction services, establishes a model of middleman's specialized production decision of transaction services on this basis, and uses multi-agent simulation to solve the model. The results show that the transaction efficiency is the impetus for the change of middlemen's division of labor level. The degree of economic specialization, price of commodities and transaction services and other associated factors also affect middlemen's division of labor.
{"title":"Study of E-commerce Transaction System's Division of Labor Based on Multi-agent Simulation","authors":"Li Wang, Y. Chai, Yi Liu","doi":"10.1145/3126973.3126995","DOIUrl":"https://doi.org/10.1145/3126973.3126995","url":null,"abstract":"The e-commerce transaction system's division of labor of is an important problem. It is of great significance for evaluating the development level and forecast the development direction of e-commerce. However, there is a certain disparity between the current mainstream research model and the reality, which leads to a biased result. This paper puts forward to a definition of transaction efficiency based on transaction services, establishes a model of middleman's specialized production decision of transaction services on this basis, and uses multi-agent simulation to solve the model. The results show that the transaction efficiency is the impetus for the change of middlemen's division of labor level. The degree of economic specialization, price of commodities and transaction services and other associated factors also affect middlemen's division of labor.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"22 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":"115121312","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}
Pub Date : 2016-10-06DOI: 10.1109/ICCSE.2016.7581531
Jonathan Li
The development of innovative algorithms/methods and software tools, including object-based image analysis for multi-scale thematic mapping of physical and built environments, airborne LiDAR point cloud processing for 3D urban modeling, laser scanning data processing for 3D infrastructure reconstruction, intelligent SAR image analysis for automated detection of oil spill, sea ice, and shoreline changes, advanced computer vision and machine learning for intelligent processing of remotely sensed data, as well as novel remote sensing applications in transportation, utility, agriculture, resources and disaster management.
{"title":"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)","authors":"Jonathan Li","doi":"10.1109/ICCSE.2016.7581531","DOIUrl":"https://doi.org/10.1109/ICCSE.2016.7581531","url":null,"abstract":"The development of innovative algorithms/methods and software tools, including object-based image analysis for multi-scale thematic mapping of physical and built environments, airborne LiDAR point cloud processing for 3D urban modeling, laser scanning data processing for 3D infrastructure reconstruction, intelligent SAR image analysis for automated detection of oil spill, sea ice, and shoreline changes, advanced computer vision and machine learning for intelligent processing of remotely sensed data, as well as novel remote sensing applications in transportation, utility, agriculture, resources and disaster management.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127374060","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}
Pub Date : 2015-07-20DOI: 10.2991/ICCSE-15.2015.40
Lijian Zhang, Haina Cui, Tingting Wang
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.
{"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}
Pub Date : 2015-07-20DOI: 10.2991/ICCSE-15.2015.26
Wanyin Du, Shou Li
A complete human resources strategic planning can become the core competitiveness of enterprises, which is an important means to achieve competitive advantage. This paper focused on improved gray Markov model in human resource internal supply forecasting, so that enterprises can reasonably predict their internal human resource supply through this method and provide an important guarantee for enterprises to develop human resources strategic planning.
{"title":"Application of Markov Model in Human Resource Supply Forecasting in Enterprises","authors":"Wanyin Du, Shou Li","doi":"10.2991/ICCSE-15.2015.26","DOIUrl":"https://doi.org/10.2991/ICCSE-15.2015.26","url":null,"abstract":"A complete human resources strategic planning can become the core competitiveness of enterprises, which is an important means to achieve competitive advantage. This paper focused on improved gray Markov model in human resource internal supply forecasting, so that enterprises can reasonably predict their internal human resource supply through this method and provide an important guarantee for enterprises to develop human resources strategic planning.","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"2 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":"132514792","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}
{"title":"An Experimental Case Study for the Course of 'Testing Technology and Data Processing'","authors":"Siliang Lu, Xiaoxian Wang, Bin Ju, Yongbin Liu, Feng Xie, Minhui Xia","doi":"10.1007/978-981-99-2449-3_20","DOIUrl":"https://doi.org/10.1007/978-981-99-2449-3_20","url":null,"abstract":"","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115371900","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}
{"title":"Teaching Reform and Practice for the Course of Web Application Development Technology Under the Background of Online Education","authors":"Dong Yi, Xiaoning Peng, Xian Zhang, Chunqiao Mi, Yiwen Liu, Taiguo Qu","doi":"10.1007/978-981-99-2446-2_31","DOIUrl":"https://doi.org/10.1007/978-981-99-2446-2_31","url":null,"abstract":"","PeriodicalId":370356,"journal":{"name":"International Conference on Crowd Science and Engineering","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115453537","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}
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