摘要
近年来突发事件频繁发生,严重威胁着人们的安全和健康,对突发事件信息获取和监控的需求迫切;同时图像、视频等已经逐渐成为信息的主要载体,多媒体信息的分析越来越重要。本论文对突发事件跨媒体信息检索系统进行了研究和实现,论文完成的主要工作如下:
(1)设计了一种模拟用户登录的方法进行突发事件相关图片的采集,在Heritrix中结合了基于内容相关度评价的URL过滤算法,实现了系统的多媒体信息的采集功能。
(2)提出了基于特征映射的图像语义分析算法,通过提取图像的视觉特征进行语义分析;采用了基于本体的查询扩展技术进行查询输入的语义扩展;同时结合Lucene的文本检索,实现了多媒体信息的检索功能。
(3)设计并实现了系统的智能移动终端模块,采用业务逻辑和显示分层的架构,提出了一种状态监测的方法来提高智能移动终端的服务效率和稳定性。
(4)采用基于KQML的Agent通信机制和以管理Agent为核心的Agent协作机制,实现了多Agent系统管理器,优化了资源配置,提高了系统的工作效率。
本文建立的突发事件跨媒体信息检索系统,通过在PC机及智能移动终端上提供对突发事件领域的相关文本和多媒体信息的采集和检索服务,有效地实现了对突发事件信息的获取和监控,维护了人们的健康和安全,具有一定的理论意义和应用价值。
In recent years, more and more emergencies like natural disasters and public health events happens, and they threaten the health and security of the people seriously. So the acquisition and monitor of emergencies information is needed. At the same time, image is becoming an important information carrier, the identification of image is becoming more important. So this thesis researched and implemented the emergency cross-media information retrieval system. The thesis had completed the following tasks:
(1)Designed a method of simulating user login to collect the image information of emergency. Added an algorithm of URL filtering based on contents correlation evaluation into the Heritrix framework to implement the collection of multimedia information.
(2)Created an algorithm of image semantic analysis based on feature map and done the semantic analysis by getting the visual features of image. Used the query expansion technology based on ontology to realize the query expansion, and added the text retrieval of Lucene to realize the retrieval of multimedia information.
(3)Designed and implement the intelligent mobile terminal of the system. In the design, the system used the stratified architecture and created a method of condition monitoring to develop the intelligent mobile terminal.
(4)Used the agent communication mechanism based on KQML and the agent coordination mechanism based on management agent to implement the agent manager of the system, optimize the allocation of resources and develop the efficiency of the system.
In this thesis, the emergency cross-media information retrieval system provided the retrieval service of emergency multimedia information on the PC machine and the intelligent mobile terminal, realized the acquisition and monitor of emergencies information and protected the people's health and security. Besides, system had a certain theoretical significance and application value.
引文
[1]郑红玲.突发事件应急管理面临的挑战及对策[J].领导科学,2010,(29):35-41.
[2]龙艳,罗明娅,徐南等.关于完善我国突发事件应急管理体制的思考[J].云南警官学院学报,2010,(04):19-25.
[3]郑瑜.记者角色与社会责任[J].当代传播,2007,(1):23-26.
[4]张伍苏,智婷.突发事件应急管理体系的构建[J].河南科技,2010,(20):14-20.
[5]黄开腾.政府危机决策体制完善和创新研究[D].重庆大学,2007.
[6]薛澜,钟开斌.突发公共事件分类、分级与分期:应急体制的管理基础[J].CPA中国行政管理,2005,(1):102-107.
[7]王成,宋炳辉等.危机管理[M].中信出版社,2001,9-15.
[8]覃燕红.突发事件应急预案有效性评价[J].科技管理研究,2010,(24):19-25.
[9]马志毅.中国应急管理:体制、机制与法制[J].行政管理改革,2010,(10):28-33.
[10]丰芳芳.突发事件应对中的行政信息公开[J].西南政法大学学、报,2009,(10):23-29.
[11]Qiu-ling Chen, Qing Zhang, Shu-ting Huang. Evolution mechanism study for food safety emergency-Based on Life-cycle Theory[C]. Industrial Engineering and Engineering Management (IE&EM),2010:1053-1057.
[12]戚建刚.非常规突发事件与我国行政应急管理体制之创新[J].华东政法大学学报,2010,(05):31-36.
[13]杨涛.建立和完善突发事件应对机制探析[J].中共贵州省委党校学报,2010,(03):20-25.
[14]刘志玲.当前我国群体性突发事件的类型、特点及对策[J].江东论坛,2010,(02):40-45.
[15]周定平.社会安全事件特征的比较分析[J].北京人民警察学院学报,2008,(02):32-37.
[16]Huizhang Shen, Huang, W.W., Jidi Zhao. A sequential group decision process for emergency response [C]. Systems, Man and Cybernetics,2008:867-871.
[17]秦治来.国外突发事件应急管理的若干启示[J].中国党政干部论坛,2010,(05):12-17.
[18]陈月生.略论群体心态与舆情研究[J].理论月刊,2007,(08):4-9.
[19]于建嵘.社会泄愤事件中群体心理研究—对“瓮安事件”发生机制的一种解释 [J].北京行政学院学报,2009,(01):23-28.
[20]Dongmei Yan, Li He. Modeling government emergency information resources based on decision support[C]. Advanced Computer Theory and Engineering. ICACTE,2010,2:662-665.
[21]Yongjun Yang, Lili Rong. A Method of Evaluating the Emergency Response Capability of Emergency Plans [C]. Wireless Communications, Networking and Mobile Computing,2008:1-4.
[22]Wang WenJun, Dong CunXiang, Yang Peng. Ontology Modeling of Emergency Plan Systems[C]. Fuzzy Systems and Knowledge Discovery,2009,2:290-294.
[23]姜秀敏.论突发事件管理中我国政府信息公开建设[J].东北大学学报(社会科学版),2009,(01):10-15.
[24]Guerriero, A., Ragni, R, Marlines, C. A dynamic URL assignment method for parallel web crawler[C]. Computational Intelligence for Measurement Systems and Applications (CIMSA),2010:119-123.
[25]Selamat, A., Ahmadi-Abkenari, F.. Application of clickstream analysis as Web page importance metric in parallel crawlers[J]. Information Technology(ITSim), 2010,1:1-6.
[26]Li Wei-jiang, Ru Hua-suo, Zhao Tie-jun. A New Algorithm of Topical Crawler[C], Computer Science and Engineering. WCSE'09,2009:1:443-446.
[27]Li Wei-jiang, Ru Hua-suo, Hong Kun. A New Algorithm of Blog-Oriented Crawler[C]. Computer Science-Technology and Applications. IFCSTA'09,2009, 1:428-431.
[28]Qing Gao, Bo Xiao, Zhiqing Lin. A high-precision forum crawler based on vertical crawling[C]. Network Infrastructure and Digital Content IC-NIDC 2009: 362-367.
[29]Qin Dong. Search-Engine-Oriented Theme Crawler Design. System Science[C], Engineering Design and Manufacturing Informatization. ICSEM,2010,2:303-306.
[30]Sirisha Gadiraju, N.V.G., Krishna Chaitanya, R., Padma Raju, G.V.. Effect of feature selection method on the performance of focused crawlers-A case study on traditional and accelerated focused crawlers[C].Networking and Information Technology (ICNIT),2010:482-487.
[31]Ke Hu, Wing Shing Wong. A probabilistic model for intelligent Web crawlers[C]. Computer Software and Applications Conference. COMPSAC 2003,278-282.
[32]Bra D P, Houben G, Kornatzky et al. Information retrieval in distributed hypertexts[C]. Proceedings of the 4th RIAO Conference, New York, 1994:481-491.
[33]Hersovici M, Jacovi M, Maarek Y et al. The shark-search algorithm an application:tailored Web site mapping[J]. Computer Networks and ISDN System, 1998,30(3):256-264.
[34]邹晓泉.智能Agent及其在电子商务中的应用.信息与控制,2003,32(1),77-81.
[35]Pattie Maes. Artificial life meets entertainment:life like autonomous agents.Communieation of the ACM.1995,138 (11),108-114.
[36]S. Russell, P. Norvig. Artificial Intelligence:A Modern Approach. Designing Autonomous Agents. Cambridge:MIT Press.1995.
[37]Wooldridge M. J., Jennings N. R.. Intelligent Agents:Theory and Practices. The Knowledge Engineering Review.1995,10 (2):115-152.
[38]刘大有,杨鲲,陈建中Agent研究现状与发展趋势.软件学报,2000,11(3):315-326.
[39]李海伟,申瑞民,杨帆,韩鹏.基于多Agent的个性化协作学习系统研究与实现.计算机仿真,2004,21(10),188-190.
[40]DeLoach S A, Wood M F, Sparkman C H. Multiagent systems engineering. International Journal of Software Engineering and Knowledge Engineering,2001, (11):231-258.
[41]石纯一等.多Agent系统引论.北京:电子工业出版社,2003.
[42]原福永,杨桂芝,程玉良.基于Agent的个性化信息服务系统的开发与设计.计算机工程与应用,2004,40(33),109-111.
[43]潘金贵,胡学联,李俊等.一个个性化的信息搜索Agent的设计与实现.软件学报,2001,12(7),1074-1079.
[44]Zhenpeng Liu, Lili Zhu, Jianmin Xu. A Platform of Mobile Agent Based on Distributed Web Database.2006 International Conference on Machine Learning and Cybernetics,2006,192-197.
[45]Ebrahim AlHashel. A Conceptual Agent Cooperation Model for Multi-agent Systems'Team Formation Process. Third 2008 International Conference on Convergence and Hybrid Information Technology,2008,12-20.
[46]张正球,章志明,余敏.基于迁移计划图的Agent迁移机制.计算机工程,2005,31(16):222-224.
[47]Peng Lin, Yingmin Jia, Junping Du, Shiying Yuan. Distributed Control of Multi-agent System with Second-Order Agent Dynamics and Delay-Dependent Communications. Asian Journal of Control,2008,10(2):254-259
[48]Lin Li, Yingmin Jia, Junping Du, Shiying Yuan. Robust L2-L∞ Control For Uncertain Singular Systems with Time-varying Delay. Progress in Natural Science,2008,18(8):1015-1021.
[49]Peng Lin, Yingmin Jia, Junping Du, Fashan Yu. Distributed Leadless Coordination for Networks of Second-Order Agents with Time-Delay on Switching Topology. In Proceedings of the American Control Conference, 2008,1564-1569.
[50]郭文生,杜军平,尹怡欣.多Agent协作技术在电子商务中介平台中的应用.计算机工程,2006,32(18):275-277.