2016 13th Web Information Systems and Applications Conference (WISA)最新文献

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Research on Optimization of Clustering by Fast Search and Find of Density Peaks 基于快速搜索和发现密度峰的聚类优化研究
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.35
Jinlong Zheng, Hao Sun, Mingxin Zhang, Guohai Zhang
{"title":"Research on Optimization of Clustering by Fast Search and Find of Density Peaks","authors":"Jinlong Zheng, Hao Sun, Mingxin Zhang, Guohai Zhang","doi":"10.1109/WISA.2016.35","DOIUrl":"https://doi.org/10.1109/WISA.2016.35","url":null,"abstract":"CFSFDP is a clustering algorithm based on density peaks, which can cluster non-spherical data sets, and also has the advantages of fast clustering and simple realization. However, the global density threshold dc, which leads to the decrease of clustering quality, is specified without the consideration of spatial distribution of the data. Moreover, the data sets with multi-density peaks cannot be clustered accurately. To resolve the above shortcomings, an optimization of CFSFDP algorithm based on grid (GbCFSFDP) is proposed. To avoid the using of global dc, first, the algorithm divides the data sets into smaller partitions by using the method of grid partitioning and performs local clustering on them. Then, GbCFSFDP merges the subclasses. Finally, data sets which are unevenly distributed and exist multi-density peaks are correctly classified. Simulation experiments of two typical data sets show that the proposed GbCFSFDP algorithm is more accurate than CFSFDP.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115039393","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: 8
Research on Android Access Control Based on Isolation Mechanism 基于隔离机制的Android访问控制研究
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.53
Ying Peng, Mingxin Zhang, Jinlong Zheng, Z. Qian
{"title":"Research on Android Access Control Based on Isolation Mechanism","authors":"Ying Peng, Mingxin Zhang, Jinlong Zheng, Z. Qian","doi":"10.1109/WISA.2016.53","DOIUrl":"https://doi.org/10.1109/WISA.2016.53","url":null,"abstract":"With the rapid development of the Internet, the application of Android system is more and more widely. But then the user's privacy leaks, malicious software attacks and hacking and other security issues have become increasingly serious. Android privilege mechanism is an important security protection mechanism of Android. But the current authority mechanism cannot be a good solution to the problem of improper access and the lack of protection of the core thus brings potential safety hazard. A three-tier Android safety protection safety guarantee system is designed to protect the security control subsystem, which is composed of the application layer, the virtual monitoring layer and the trusted root layer. It then uses the security control subsystem to control the other main parts of the Android system. Experiments show that the system can effectively block applications with sensitive permissions, and put it into the isolation zone, finally integrated hardware mechanism to ensure the security of Android system.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117321452","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
Research on Multi-Objective Dynamic Cloud Service Strategy 多目标动态云服务策略研究
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.25
Chun-Yan Liu, Cheng-Ming Zou
{"title":"Research on Multi-Objective Dynamic Cloud Service Strategy","authors":"Chun-Yan Liu, Cheng-Ming Zou","doi":"10.1109/WISA.2016.25","DOIUrl":"https://doi.org/10.1109/WISA.2016.25","url":null,"abstract":"Most of the existing cloud service strategies are scheduling algorithm based on user's satisfaction or QoS. The former does not consider physical resource utilization, while the latter ignores the satisfaction of the user's experience. This paper proposes a multi-objective cloud service model, which is based on the user's dynamic demand and resource utilization. In addition, it designs a multi-objective optimization algorithm based on improved PSO algorithm (ADW-PSO) to solve the model. To evaluate the performance of proposed algorithm, we extend cloudsim package to simulate the cloud environment, and compare with the traditional PSO algorithm and the double adaptive GA algorithm. The simulation results show that the ADW-PSO algorithm outperforms other two algorithms on user's experience and resource utilization, which can improve the quality of cloud services obviously.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121169239","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
Differential Evolution-Based Fusion and Its Properties for Web Search 基于差分进化的网络搜索融合及其特性研究
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.23
Jinsong Xia, Chunlin Xu, Shengli Wu
{"title":"Differential Evolution-Based Fusion and Its Properties for Web Search","authors":"Jinsong Xia, Chunlin Xu, Shengli Wu","doi":"10.1109/WISA.2016.23","DOIUrl":"https://doi.org/10.1109/WISA.2016.23","url":null,"abstract":"In recent years, data fusion has been applied to many different application areas such as neural networks, classification, multi-sensor systems, image processing, information retrieval, Web search among others. Linear combination is a popular data fusion method due to its flexibility. Proper weight assignment is a key issue for its success. In this paper, we apply the differential evolution optimization method to find suitable weights in the search space. Experiments are carried out with authoritative TREC data and we find it is a good method for the task and can improve fusion performance significantly than the best component results and other heuristic data fusion methods. Moreover, we have two findings. One finding is compared with other fusion methods, differential evolution based method performs better when more component search engines are involved in the fusion process. The second is a relatively large number of queries (e.g. over 100 queries) should be used as training data in order to obtain reliable weights.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"627 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116211611","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
A Hybrid Method Based on Cuckoo Search and Krill Herd Optimization with Differential Evolution 基于布谷鸟搜索和差分进化磷虾群优化的混合方法
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.37
Zichen Zhang, Yongquan Dong, Tongfei Gao
{"title":"A Hybrid Method Based on Cuckoo Search and Krill Herd Optimization with Differential Evolution","authors":"Zichen Zhang, Yongquan Dong, Tongfei Gao","doi":"10.1109/WISA.2016.37","DOIUrl":"https://doi.org/10.1109/WISA.2016.37","url":null,"abstract":"A novel hybrid Krill Herd (KH) and Cuckoo Search(CS) with Differential Evolution(DE), called DECSKH, is proposed for the global optimization. DECSKH is designed for enhancing the ability of the local search and increasing the individual diversity in the population. In DECSKH, all individuals are divided into two parts, denoted as part I and part II, respectively. Two different optimization algorithm combined with DE, DECS and DEKH, are incorporated into these two parts, respectively. DECSKH, therefore, is expected to obtain an efficient balance between exploration and exploitation. DECSKH can make all the individuals proceed to the true global optimum without introducing additional operators to the basic CS, KH and DE algorithms. The effectiveness of these improvements is tested by 18 standard benchmark functions. Based on the results, we can easily infer that DECSKH is more effective and efficient than the original CS, KH, DE and other approaches.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131330514","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
Group Detection for Specific Topic on Micro-Blog 微博特定话题分组检测
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.36
Xiaolei Fu, Mingwang Gao, Qiang Liu, Hongmei Liu
{"title":"Group Detection for Specific Topic on Micro-Blog","authors":"Xiaolei Fu, Mingwang Gao, Qiang Liu, Hongmei Liu","doi":"10.1109/WISA.2016.36","DOIUrl":"https://doi.org/10.1109/WISA.2016.36","url":null,"abstract":"In this paper, we focus on the problem of group detection on Sina micro-blog, the most popular micro-blogging system in China. Efficiency plays an extremely important role in data analysis. As a consequence, we propose a framework to quickly detect groups, in which we modify SimHash algorithm to calculate similarity of short text and improve TF-IDF algorithm to accurately calculate the weights. Basing on the framework, we analyze the characteristics of the sample groups and discover two new properties about groups. Besides, sentiment expressed in each group are studied and we find the consistency of attitude toward a specific topic within the same group. Extensive experiments on real-world social networks prove the high efficiency of the frame on group detection. Analysis of groups with this framework provide indispensable support for topic propagation.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114630767","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
A Method to Identify Exercises from Web Resources 从网络资源中识别练习的方法
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.47
Xiangdong Che, Yukun Li, Xinzeng Zhang
{"title":"A Method to Identify Exercises from Web Resources","authors":"Xiangdong Che, Yukun Li, Xinzeng Zhang","doi":"10.1109/WISA.2016.47","DOIUrl":"https://doi.org/10.1109/WISA.2016.47","url":null,"abstract":"For teachers and students in school, it's a weighty issue that how to find course exercises with high quality to improve his or her efficiency of learning or teaching. The information in the web, as everyone knows, is complicated and disordered. It's hard to seek what we want in time, not to mention exercises. In this paper, we put forward a method to identify course exercises which is based on unstructured text. In this way, we can extract and integrate related exercise information effectively from the web according to the keywords that we have appointed to serve all teachers and students. The experimental results show the effectiveness of the method we proposed.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125531007","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
Combining Influence and Sensitivity to Factorize Matrix for Multi-Context Recommendation 结合因子矩阵的影响和敏感性的多上下文推荐
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.24
Qingna Zhao, Yue Kou, Derong Shen, Tiezheng Nie, Ge Yu
{"title":"Combining Influence and Sensitivity to Factorize Matrix for Multi-Context Recommendation","authors":"Qingna Zhao, Yue Kou, Derong Shen, Tiezheng Nie, Ge Yu","doi":"10.1109/WISA.2016.24","DOIUrl":"https://doi.org/10.1109/WISA.2016.24","url":null,"abstract":"With the growing amount of information available online, context-aware recommender systems have emerged to improve the precision of recommendation. Matrix factorization models are the state-of-the-art in these systems, especially for multi-context recommendation. However, existing models ignored either context influence or entity sensitivity. That is, they assume that one entity (user or item) shares the same factors across different contexts, or one context shares the same influence across different entities. In fact, for one context (or entity), its influence (or sensitivity) may be different with the changes of entities (or contexts). In this paper, we present a matrix factorization model for multi-context recommendation (namely ISMF). Unlike traditional models, ISMF considers both context influence and entity sensitivity. Instead of enforcing the same factors for each entity, we detail the factors as entity-intrinsic factors and entity-specific factors to represent entity-itself and context influence respectively. Meanwhile, we use some parameters acting on these factors to represent entity sensitivity. Also a matrix factorization algorithm for ISMF is proposed. We iteratively determine the factors and relevant parameters to maintain the precision for recommendation. The experiments demonstrate the feasibility and effectiveness of our method.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127802612","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
A Multilayer Collaborative Filtering Recommendation Method in Electricity Market 电力市场中一种多层协同过滤推荐方法
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.20
L. Tao, Ming-hai Jiao, Yong Dai, Chuncheng Gao
{"title":"A Multilayer Collaborative Filtering Recommendation Method in Electricity Market","authors":"L. Tao, Ming-hai Jiao, Yong Dai, Chuncheng Gao","doi":"10.1109/WISA.2016.20","DOIUrl":"https://doi.org/10.1109/WISA.2016.20","url":null,"abstract":"Transaction price accurate recommendation is a hot issue for buyer and seller on bidding information services in Chinese electricity market, a novel multilayer collaborative filtering algorithm is proposed to solve the bidding prices accurate mining problem. A three-tier relationship model of user-item-attribute is described to accommodate the real electricity transaction on bidding price service mining and recommendation. The fuzzy evaluation method is presented to improve candidate items sets of similar neighbors, integrating user fuzzy preference by attributes into membership degree evaluation. And then, the similarity function is improved to determine better proportions in items Pearson coefficients. A case study is done to give an application example for electricity market. And the experiment is also implemented to prove that the model and the algorithm are efficient and robust for application value by performance of experiment results.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133503287","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
Hybrid Intrusion Detection Method Based on Improved Bisecting K-Means in Cloud Computing 云计算中基于改进等分k均值的混合入侵检测方法
2016 13th Web Information Systems and Applications Conference (WISA) Pub Date : 2016-09-01 DOI: 10.1109/WISA.2016.52
Xinlong Zhao, Weishi Zhang
{"title":"Hybrid Intrusion Detection Method Based on Improved Bisecting K-Means in Cloud Computing","authors":"Xinlong Zhao, Weishi Zhang","doi":"10.1109/WISA.2016.52","DOIUrl":"https://doi.org/10.1109/WISA.2016.52","url":null,"abstract":"Compared with traditional IT infrastructure, cloud computing system has many new features, such as virtualization and data outsourcing. The new architecture brings about higher resource utilization, and also introduces a number of new security risks. Therefore we need to study new intrusion detection technology suitable to cloud computing environment to address these risks. Aiming at characteristics and security challenges of cloud computing, and based on silhouette coefficient and partitioned clustering subspace method to improve the bisecting K-means unsupervised learning method, this paper proposes a hybrid distributed intrusion detection method capable of detecting both known and unknown attacks simultaneously. The method can obtain the value of initial cluster center more stably, and generate cluster center table of intrusion detection engine, reduce false positive rates and false negative rates of known attacks, achieve unknown attack detection, and accelerate the speed of intrusion detection. At last, it has simulation experiments aimed at this method, and analyzes test results compared with standard K-means algorithm, and shows good practical value of this method.","PeriodicalId":308797,"journal":{"name":"2016 13th Web Information Systems and Applications Conference (WISA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132721201","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: 5
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