时空本体在海洋GIS应用中的关键技术研究

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1、上海海洋大学硕士学位论文时空本体在海洋GIS应用中的关键技术研究姓名：徐健宁申请学位级别：硕士专业：计算机应用技术指导教师：黄冬梅20091230AbstractTher印iddevelopmemofGIStechnologyisprovidingapowe柏1toolt-or也einformationtechnologyofmarineresources．MarineG1SaccesstoahugeSuccessmtheapplicationareassuchaScoastalzonedevelopmentandmanagement，manne士1snene

2、s，m撕neenViro衄entalmonitoringandevaluation．However,themarineenV肿nment1sdvn锄ic，wmlethecurrentcommercialsoftwareindealingwithtilesedyn锄1cd啦黜arsalackofintelligence．Inordertoaccuratelygraspthechangesmthe嫩nneenviro眦ent，wemusttkstdepictthevariationofmarineresourceswithtime锄dspace·OntologYc

3、allbeusedtodescribetheconceptofknowledge，knowledgeorg锄zatlon，knowledgeaIldservicestoCalTyoutthescientificmethodology,preclselysuitedtoaddresssuchareasofknowledgeandreasoningamongtheissues·WithusingontologyinmarineGIS，therearemanykeytechnologies、∞nhexplonng·Amongmem，thefirstisthecons

4、tructionofontology．Ifthereisnoontology1sconstructed，thereasoningandthefurtherapplicationofontologycannotbefullyvefi矗ed锄drealized．Atpresent，themostwideusedtoolforontology’sconstmctlon1sontologyeditor；thisapproachislargelyamanualprocessthatrequiresalotoftlmecons吼ing，mal叩owerandcosts．A

5、saresult，findingawaytoco删ontologyautomatically，砌chbasedonmachinelearning，isthedirectionofontologybuilding·111recemyears，com肼ltertechnologyandinformationextractiontechnologycontlnilestoev01ve，haslaidthetechrticMfoundationforsemi—automaticgenerateontology11br哪Onthebaseofpractice，thisp

6、aperfocusesonthesemi-automaticgenerationofontologyandachievesthefollowingresults：1．Makeasystematicandprofoundstudyofthebasictheoriesofontology,includingitsdefinition，primitiveofmodeling，andclassification，which1stheemphasesofstudyinthisthesis，andbasesoftechnologyofautomatlcgen倒【ionof

7、ontology．2。Makemuchimprovememinthekeytechniquesofautomaticgenerationof。ntol。gy：inc蜥ngtem汹logy嗽ac雠g，c。nceptlearning，instanteleanlingandrelationlearning．3．Implementthesystem。fautomaticgenerati。n。fontol。gy．Designabl。ckdiagr撇2上海海洋大学硕七学位论文ofthetoolanddeflnethefunctionofeachmoduletoachiev

8、e．4．Makeastudyofapp