Proceedings of the 4th International Conference on Computer Science and Application Engineering最新文献_第8页

Common Coincidence Point Theorems for Four Mappings 四种映射的公共重合点定理

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425040

Y. Hao, H. Guan

引用次数: 0

Active Measurement of Open Resolver Service Nodes 开放解析器服务节点的主动测量

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425039

Hailing Li, Xiaohang Zhang, Shoufeng Cao, Longtao He, Hui Zhang

{"title":"Active Measurement of Open Resolver Service Nodes","authors":"Hailing Li, Xiaohang Zhang, Shoufeng Cao, Longtao He, Hui Zhang","doi":"10.1145/3424978.3425039","DOIUrl":"https://doi.org/10.1145/3424978.3425039","url":null,"abstract":"Driven by the growing number of DNS requests on the Internet, the architecture of the recursive resolver has become more huge and complex, especially for open resolvers that provide resolution services to the public. There are many service nodes with different roles in the open resolver, and the nodes that directly communicate with the authoritative server are called recursive egress nodes. This paper proposed a distributed measurement system and performed active measurement and analysis on the characteristics of the egress node of open resolvers collected from passive DNS traffic and third party active scanning. The results from 65 vantage points show that (1) most open resolvers have dozens of recursive egress nodes, and (2) most open resolvers have deployed at least one IPv6 address egress node, while IPv4 address still dominates the service node configuration. (3) A small amount of recursive egress nodes is reused by a large number of open resolvers, so that a large amount of DNS request traffic on the Internet is concentrated on limited recursive egress nodes, which will reduce the redundancy of DNS and cause cyber security risks. (4) The median distances between most open resolvers with multiple egress nodes and the users usually exceed 1000 kilometers, which will bring negative effect on the scheduling accuracy of CDN.","PeriodicalId":178822,"journal":{"name":"Proceedings of the 4th International Conference on Computer Science and Application Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130557659","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

Weekend Box Office Forecasting Based on MF-DCCA and Multiple Neural Networks Approach 基于MF-DCCA和多元神经网络方法的周末票房预测

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425091

L. Gu, Xinxin Zhang, Ke Li, Guozhu Jia

引用次数: 0

Model Checking Dynamic Strategy Logic with Memoryless Strategies 用无内存策略检验动态策略逻辑的模型

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425046

Liping Xiong, Sumei Guo

引用次数: 0

Attention V-Net: A Residual U-Net with Attention Gate Block for Lung Organs At Risk Segmentation 注意v网:一种带有注意门块的残差u网，用于肺器官的危险分割

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425117

Zesen Cheng, Lijuan Lai, Tianyu Zeng, Sijuan Huang, Xin Yang

引用次数: 0

Automatic Rules Generation for Teaching Strategies Improvement 教学策略改进的自动规则生成

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425079

Jing Zhan, Xue Fan, Yong Zhao

{"title":"Automatic Rules Generation for Teaching Strategies Improvement","authors":"Jing Zhan, Xue Fan, Yong Zhao","doi":"10.1145/3424978.3425079","DOIUrl":"https://doi.org/10.1145/3424978.3425079","url":null,"abstract":"Data mining of students' scores can optimize teaching strategies and improve the teaching quality continuously. However, there are two problems in the current researches of teaching data mining. Firstly, most researchers focus on students' performance among multiple courses, but these data are relatively rough, and with little help for improving specific teaching strategies (e.g., using different teaching and assessment methods) of a single course. Secondly, students' performance not only depends on their efforts, but also is affected by the effectiveness of the assessment methods made by teachers, so it is impossible to have accurate improvement without considering factors from both teacher and students' sides. This paper takes the students' scores of computer network course as the sample, uses k-means to cluster students' scores from different assessment methods based on fine grained teaching contents, in order to get more accurate teaching improvement strategies later. In addition, an improved Apriori algorithm is proposed with the quality of assessment methods taken into consideration, for association rules selection and teaching strategies improvement. According to the experiments, our method can take into account the diversity of course assessment methods and the influence of both teaching and learning factors, and the accuracy of the improved rules is 18.8% higher than that current Apriori algorithm based on interest.","PeriodicalId":178822,"journal":{"name":"Proceedings of the 4th International Conference on Computer Science and Application Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127170458","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: 1

Structural Optimization Design and Natural Mode Analysis of Small Four Rotors UAV 小型四旋翼无人机结构优化设计与自然模态分析

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3424992

Renbin Zhou, Zuxun Zhang

引用次数: 0

Broad Learning System Based on Nonlinear Transformation and Feedback Adjustment 基于非线性变换和反馈调节的广义学习系统

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3424989

Shuangyun Sun, Hexiao Huang, Zhanquan Wang

引用次数: 0

Research on Migration Risk of Island Countries Based on Neural Network 基于神经网络的岛国移民风险研究

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425024

Yong Gan, Fei Xue, Boqiao Zeng, Yuhua He, Q. Zhang, Jianghao Yu

{"title":"Research on Migration Risk of Island Countries Based on Neural Network","authors":"Yong Gan, Fei Xue, Boqiao Zeng, Yuhua He, Q. Zhang, Jianghao Yu","doi":"10.1145/3424978.3425024","DOIUrl":"https://doi.org/10.1145/3424978.3425024","url":null,"abstract":"Sea level rise is a slow-onset natural disaster, with cumulative and gradual nature. It has a considerable impact on human survival, economic development and cultural inheritance [1]. Coupled with the impact of land subsidence in many areas along the coast, sea level rise may reach 1 meter or even higher within a century [2]. In order to meet the increasingly severe energy policy challenges and protect the unique culture that is about to disappear, it is important to establish a model that can assess whether a country or region has migration risks. This article will build a neural network model to assess the risk of each island country and predict its possibility of becoming a climate refugee country, in order to help people around the world to take precautionary measures in advance, and help risky countries prepare for migrating nationals in advance. And through further analysis of the data of 11 countries that have been determined by the Office of the United Nations High Commissioner for Refugees in Syria, the model construction and model calculation are carried out [3]. Finally, according to the imbalanced population distribution index and population density concentration index of 11 countries [4], we can know that in Bosnia and Herzegovina the risk of losing the culture of Syrian refugees is relatively low.","PeriodicalId":178822,"journal":{"name":"Proceedings of the 4th International Conference on Computer Science and Application Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120974888","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 Prospect of Blockchain in Renewable Energy Certificates 区块链在可再生能源证书中的应用前景

Proceedings of the 4th International Conference on Computer Science and Application Engineering Pub Date : 2020-10-20 DOI: 10.1145/3424978.3425016

Shengnan Zhang, Jiaxing Xuan, Zitong Lyu, Yuchen Fu

引用次数: 4