基于本体的教育资源个性化语义检索研究.docx

基于本体的教育资源个性化语义检索研究
摘要
随着信息技术的不断发展，教育资源的数量已经飞速增长，然而如何快速、准确、个性化地检索教育资源，仍然是教育领域的一大挑战。本论文提出基于本体的教育资源个性化语义检索方法，以建立本体模型为基础，在此基础上，运用本体推理机制对关键词进行语义分析，实现资源的准确、个性化检索。另外，通过实验验证，证明了该方法的有效性和可行性。
关键词：本体；语义分析；个性化；教育资源；检索
Abstract
Withthecontinuousdevelopmentofinformationtechnology,thenumberofeducationalresourceshasincreasedrapidly.However,howtoretrieveeducationalresourcesquickly,accurately,andpersonalizedisstillamajorchallengeinthefieldofeducation.Thispaperproposesapersonalizedsemanticretrievalmethodforeducationalresourcesbasedonontology.Theontologymodelisusedtoestablishabasicmodel,andthesemanticanalysisofkeywordsisconductedbytheontologyreasoningmechanismtoachieveaccurateandpersonalizedretrievalofresources.Inaddition,experimentswereconductedtoverifytheeffectivenessandfeasibilityofthemethod.
Keywords:ontology;semanticanalysis;personalized;educationalresources;retrieval
1.Introduction
TherapiddevelopmentoftheInternetandinformationtechnologyhasresultedinarapidincreaseintheamountofeducationalresources,whichhasbroughtgreatconveniencetotheeducationindustry.However,inthefaceofvastamountsofeducationalresources,itisdifficultforuserstoquicklyandaccuratelyretrievetheresourcestheyneed.Thetraditionalkeyword-basedretrievalmethodhaslowaccuracyandpersonalizedretrievalcapability,andisnotconducivetopersonalizedlearning.Inordertosolvetheseproblems,thispaperproposesapersonalizedsemanticretrievalmethodforeducationalresourcesbasedonontology.
2.Theoreticalbasis
2.1Ontology
Ontologyisakeytechnologyinthefieldofartificialintelligence.Itisaformalandexplicitspecificationofasharedconceptualization[1].Itprovidesavocabularyfordescribingconceptsandrelationshipsinaparticulardomain,andcanbeusedtoorganizeandshareknowledge.Ontologyprovidesacommonunderstandingofadomain,whichcanbeusedtosupportknowledgesharingandreuse,andtoachieveintelligentreasoningandpersonalizedretrieval.
2.2Semanticanalysis
Semanticanalysisisanaturallanguageprocessingtechnologythatanalyzesthemeaningofwordsincontext.Itisusedtoextractthemeaningoftext