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2010 Seventh Web Information Systems and Applications Conference最新文献

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Location-Dependent Skyline Query Processing in Mobile Databases 移动数据库中基于位置的Skyline查询处理
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.37
Yingyuan Xiao, Kevin Lu, Huafeng Deng
{"title":"Location-Dependent Skyline Query Processing in Mobile Databases","authors":"Yingyuan Xiao, Kevin Lu, Huafeng Deng","doi":"10.1109/WISA.2010.37","DOIUrl":"https://doi.org/10.1109/WISA.2010.37","url":null,"abstract":"Skyline query processing has received considerable attention from database and information retrieval research communities. However, the existing work on skyline queries mainly assumes data objects contain only non-spatial attributes. In this paper, we address the problem of answering location-dependent skyline queries efficiently over data objects with both spatial locations and non-spatial attributes in mobile databases. We show how to efficiently perform location-dependent skyline queries in a distributed mobile environment and propose a location-dependent skyline processing approach. We conduct extensive experiments in a simulated mobile database system, and the experimental results demonstrate the superiority of the proposed approach.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125022725","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
Mining Hot Topics from Free-Text Customer Reviews An LDA-Based Approach 从自由文本客户评论中挖掘热点话题的一种基于lda的方法
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.20
Chuanming Yu, Xiaoqing Zhang, Huiting Luo
{"title":"Mining Hot Topics from Free-Text Customer Reviews An LDA-Based Approach","authors":"Chuanming Yu, Xiaoqing Zhang, Huiting Luo","doi":"10.1109/WISA.2010.20","DOIUrl":"https://doi.org/10.1109/WISA.2010.20","url":null,"abstract":"This study examines how the Latent Dirichlet Allocation (LDA) model combined with natural language processing techniques can be used to identify hot topics from free-text customer reviews. To verify the validity of the proposed approach, 21 580 restaurant reviews are collected. Each review is viewed as a probabilistic mixture of latent topics and each topic is treated as a probability distribution over words in a vocabulary. Parameters are estimated with Gibbs sampling, and the hot topics with top words are acquired. The experiments show that this approach could produce satisfactory results.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122188571","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
Document Clustering in Personal Dataspace 个人数据空间中的文档聚类
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.16
Debao Liu, Dan Yang, Tiezheng Nie, Yue Kou, Derong Shen
{"title":"Document Clustering in Personal Dataspace","authors":"Debao Liu, Dan Yang, Tiezheng Nie, Yue Kou, Derong Shen","doi":"10.1109/WISA.2010.16","DOIUrl":"https://doi.org/10.1109/WISA.2010.16","url":null,"abstract":"In Personal Dataspace (PDS), documents containing a lot of useful information play an important role in our daily work. However, it is difficult to manage the information in these documents efficiently. In this paper, we first extract some frequent terms from documents, and then cluster these documents based on the terms. Thus users can query the documents based on their contents conveniently. The experiments demonstrate the accuracy and efficiency of the key techniques in our approach.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133941392","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
TwigFilter: An Efficient Holistic Approach of XML Twig Pattern Matching TwigFilter: XML小枝模式匹配的一种有效的整体方法
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.19
Hu Ye, L. Weihua, Hong Xiaoguang
{"title":"TwigFilter: An Efficient Holistic Approach of XML Twig Pattern Matching","authors":"Hu Ye, L. Weihua, Hong Xiaoguang","doi":"10.1109/WISA.2010.19","DOIUrl":"https://doi.org/10.1109/WISA.2010.19","url":null,"abstract":"This paper presents a new approach to evaluate XML twig queries, named TwigFilter, the algorithm based on DataGuide considers that a query usually have only a few nodes to output, and it is a single-phase algorithm without the merge stage. The experimental results show that TwigFilter is superior to the previous algorithms, especially for only AD relationship in XPath expression.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133569682","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 D-S Evidence Theory to Uncertainty of Assessment Result in E-government D-S证据理论在电子政务评估结果不确定性中的应用
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.34
Bing Xia, Heng Pan, Qiusheng Zheng, Fengjun Miao
{"title":"Application of D-S Evidence Theory to Uncertainty of Assessment Result in E-government","authors":"Bing Xia, Heng Pan, Qiusheng Zheng, Fengjun Miao","doi":"10.1109/WISA.2010.34","DOIUrl":"https://doi.org/10.1109/WISA.2010.34","url":null,"abstract":"How to solve uncertainty of assessment result is an important issue in E-government. Current qualitative assessment are based on subjective qualitative evaluation and the rigid division of the quantitative data, however both methods are less objective, precise and impartiality, as a result cause accuracy of assessment poorly. D-S Evidence theory is fit for processing the subjective judgment and synthesizing the uncertain knowledge. So, this theory is applied to the uncertainty of assessment results. Firstly used the classic 2/8 rule to build a dynamic contribution matrix. Then after weighted and normalized, we got a basic probability assignment MASS matrix. Final chosen one of the largest number of synthetic probability as assessment result. The algorithm has a strong versatility and an example is used to demonstrate its effectively in this text.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"304 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114049395","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 Practice of Web-Based Sustainable Preservation Risk Management System for Digital Libraries in China 基于web的中国数字图书馆可持续保存风险管理系统的实践
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.21
Chao Li, Chunxiao Xing, M. Huang, Li Dong, Mi Zhang
{"title":"A Practice of Web-Based Sustainable Preservation Risk Management System for Digital Libraries in China","authors":"Chao Li, Chunxiao Xing, M. Huang, Li Dong, Mi Zhang","doi":"10.1109/WISA.2010.21","DOIUrl":"https://doi.org/10.1109/WISA.2010.21","url":null,"abstract":"While many research projects in the world have been addressing challenges posed by digital preservation, digital libraries in China have their own native problems that have never been addressed before. Similar problems may occur in other countries, and their memory institutions may be less prepared to handle them. Quite often, information in the native special digital objects is also unique in world and requires more precise preservation. This paper analyses the requirements and challenges of digital libraries in China and describes a practice of sustainable preservation risk management method based on web service technology. This system demonstrates an architecture that provides a minimal approach to handle the native problems, which can be easily ported to similar situations. It also provides a way to leverage the existing tools/services. And to mitigate the lack-of-professionals problem in digital preservation, multiple preservation risks are managed, which can help schedule the preservation actions efficiently.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"40 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116336764","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 Two-Level Programming Model Based on Spreadsheet and Data Flow Chart 基于电子表格和数据流程图的两级编程模型
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.31
Hailun Lin, Guiling Wang, Peng Zhang, Jing Wang, Yanbo Han
{"title":"A Two-Level Programming Model Based on Spreadsheet and Data Flow Chart","authors":"Hailun Lin, Guiling Wang, Peng Zhang, Jing Wang, Yanbo Han","doi":"10.1109/WISA.2010.31","DOIUrl":"https://doi.org/10.1109/WISA.2010.31","url":null,"abstract":"This paper proposes a two-level programming model based on spreadsheet and data flow chart for end-user programming, which adopts spreadsheet-based top-down construction pattern and dataflow-based bottom-up modification pattern to compose mashup applications. The model can not only provide users with spreadsheet-like programming style, but also provide flexible modification operators for mashups to reduce the complexity of composing mashup applications.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134261839","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: 4
Study of the SMS Platform Optimization Technology Based on Sliding Window and Load Balancing Mechanism 基于滑动窗口和负载均衡机制的短信平台优化技术研究
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.27
Qiang Cai, Yusong Tian, Haisheng Li, Tao Xu
{"title":"Study of the SMS Platform Optimization Technology Based on Sliding Window and Load Balancing Mechanism","authors":"Qiang Cai, Yusong Tian, Haisheng Li, Tao Xu","doi":"10.1109/WISA.2010.27","DOIUrl":"https://doi.org/10.1109/WISA.2010.27","url":null,"abstract":"For the purpose to develop an SMS (Short Messaging Service) issuing system for aviation information service application system, the transmission technology of SMS platform with ISMG (Internet Short Message Gateway) for short messages’ distributing was analyzed, then a revised sliding window mechanism with priority as well as a method for calculating the real-time load capacity for ISMG was proposed in this paper. Furthermore, aiming at ISMG distributing mechanism for SMS, a mathematical model with matrix method which had a low consumption load but a high efficiency strategy of dynamically scheduling for load balancing was constructed afterwards. By means of the optimization of SMS distributing process, accurate and timely delivery of the message was ensured while the robustness of the SMS platform was improved, then the efficiency of network communications equipment was also achieved.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"711 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116124207","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
Policy Generation for Privacy Protection Based on Granular Computing 基于粒度计算的隐私保护策略生成
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.10
Zhen Qin, Xianping Tao, Yu Huang, Jian Lu, Tao Wu
{"title":"Policy Generation for Privacy Protection Based on Granular Computing","authors":"Zhen Qin, Xianping Tao, Yu Huang, Jian Lu, Tao Wu","doi":"10.1109/WISA.2010.10","DOIUrl":"https://doi.org/10.1109/WISA.2010.10","url":null,"abstract":"Privacy is an increasingly cited concept in the large-scale deployment of web services in pervasive computing. The necessity of putting data-owners’ personal information online and unwanted intentions to access data-owners’ information augment the risk of privacy disclosure. To address this problem, we propose a policy-based privacy protection mechanism that protects personal information by policy from privacy violations. The policy is automatically generated based on granular computing, which attains policies about information disclosure degree from the historical access records, and data-owner’s feedback improves the accuracy of our algorithm. Due to the obvious advantages to describing problem spaces at different granularities and hierarchies in granular computing, we present Infospace, a framework for storage and description of personal information in different predefined hierarchies. Besides, through case study we show the effectiveness of our new mechanism.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125638585","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 Hotspot Data in Mobile Broadcasting Based on Data Mining 基于数据挖掘的移动广播热点数据研究
2010 Seventh Web Information Systems and Applications Conference Pub Date : 2010-08-20 DOI: 10.1109/WISA.2010.11
Qiu Lu, Xiao-hui Cheng
{"title":"Research on Hotspot Data in Mobile Broadcasting Based on Data Mining","authors":"Qiu Lu, Xiao-hui Cheng","doi":"10.1109/WISA.2010.11","DOIUrl":"https://doi.org/10.1109/WISA.2010.11","url":null,"abstract":"Mobile computing is becoming a popular computing method. Data broadcasting, an effective data accessing method, is an important technique to improve the scalability. And hotspot data is the key of data broadcasting. In this article, based on the discovery of hotspot data, the ID3 algorithm with multi-value bias has been improved. A data broadcasting algorithm based on improved NewDtree has been introduced with its improvement proved through experiments.","PeriodicalId":122827,"journal":{"name":"2010 Seventh Web Information Systems and Applications Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123067643","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
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