本文選題：領(lǐng)域本體　切入點(diǎn)：土家音樂(lè)文化資源　出處：《華中師范大學(xué)》2017年碩士論文

【摘要】：隨著“互聯(lián)網(wǎng)+”和信息化進(jìn)程的不斷加快,各種各樣的信息呈“爆炸式”增長(zhǎng),如何在浩如煙海的信息資源中快而準(zhǔn)的檢索到用戶所需的信息,成為目前大多數(shù)檢索系統(tǒng)亟待解決的難題。基于傳統(tǒng)的單一關(guān)鍵詞匹配查詢方法雖然在詞匯匹配層面暫時(shí)解決了用戶的查詢需求,但是查詢結(jié)果不盡人意,無(wú)法解決由于“一詞多意”或者“一意多詞”造成的查詢率和召回率失衡的問(wèn)題,難以滿足用戶的檢索需求。本體作為在人工智能領(lǐng)域能與計(jì)算機(jī)交流的邏輯語(yǔ)言,在檢索領(lǐng)域發(fā)揮了重大的作用,不僅能支持語(yǔ)義概念間的關(guān)系,而且能被共享和形式化。論文把本體技術(shù)引入到基于領(lǐng)域本體的文化資源查詢系統(tǒng)中,充分挖掘了土家音樂(lè)文化資源之間的語(yǔ)義關(guān)聯(lián)性,提高了系統(tǒng)的檢索性能,從而在語(yǔ)義層面上滿足了用戶的查詢需求,為土家音樂(lè)文化資源的學(xué)習(xí)、保護(hù)和發(fā)展打下了良好的基礎(chǔ)。首先,論文對(duì)本體的相關(guān)理論概念進(jìn)行了研究,梳理了本體的構(gòu)建原則、構(gòu)建方法、構(gòu)建過(guò)程、編碼語(yǔ)言和構(gòu)建工具等,同時(shí)又根據(jù)土家音樂(lè)文化資源獨(dú)有的資源屬性,梳理土家音樂(lè)文化資源的相關(guān)概念、數(shù)據(jù)屬性、對(duì)象屬性等,并對(duì)其進(jìn)行模型化,最終構(gòu)建出了土家音樂(lè)文化資源領(lǐng)域本體。其次,論文對(duì)查詢擴(kuò)展技術(shù)進(jìn)行了研究,提出將土家音樂(lè)文化資源領(lǐng)域本體引入到查詢擴(kuò)展中,該方法的基本思路是在基于局部分析的查詢擴(kuò)展方法中引入本體技術(shù)。本體技術(shù)能夠提供可以共享的、形式化的、明確的、概念化的表示信息,使其以語(yǔ)義化的形式提供查詢擴(kuò)展庫(kù),能夠改善基于局部分析的查詢擴(kuò)展過(guò)程,將二者結(jié)合能夠有效的提高查詢的準(zhǔn)確率。通過(guò)計(jì)算本體內(nèi)部概念之間的相似度,把在設(shè)定閾值之內(nèi)的概念與檢索詞—并加入到查詢?cè)~庫(kù),利用Jena對(duì)本體的解析技術(shù),實(shí)現(xiàn)對(duì)土家音樂(lè)文化資源的本體庫(kù)的檢索功能,并將查詢結(jié)果返回給用戶。最后,與Solr搜索引擎技術(shù)結(jié)合,最終設(shè)計(jì)并實(shí)現(xiàn)了基于領(lǐng)域本體的文化資源檢索系統(tǒng)。利用論文中提出的將本體技術(shù)引入到查詢擴(kuò)展的方法,實(shí)現(xiàn)對(duì)用戶的查詢?cè)~進(jìn)行推理和擴(kuò)展,最終得到查詢結(jié)果。通過(guò)與基于關(guān)鍵詞查詢匹配方法對(duì)比,驗(yàn)證了該方法的有效性,通過(guò)對(duì)比實(shí)驗(yàn)結(jié)果可得,基于土家音樂(lè)文化資源領(lǐng)域本體的檢索系統(tǒng)能有效的提升檢索的性能和滿足用戶的查詢需求。
[Abstract]:With the continuous acceleration of the "Internet" and the information process, various kinds of information are growing explosively. How to retrieve the information needed by users quickly and accurately in the vast information resources?It has become an urgent problem for most retrieval systems.Although the traditional single keyword matching query method solves the query needs of users temporarily at the lexical matching level, the query results are unsatisfactory.It is difficult to solve the problem of the imbalance of query rate and recall rate caused by "one word with multiple meanings" or "one meaning and many words", and it is difficult to meet the users' search demand.Ontology, as a logical language that can communicate with computer in the field of artificial intelligence, plays an important role in the field of retrieval. It not only supports the relationship between semantic concepts, but also can be shared and formalized.In this paper, the ontology technology is introduced into the query system of cultural resources based on domain ontology, which fully excavates the semantic correlation among the cultural resources of Tujia music, and improves the retrieval performance of the system.Therefore, it meets the query needs of users on the semantic level, and lays a good foundation for the study, protection and development of Tujia music culture resources.First of all, the paper studies the related theoretical concepts of ontology, combing the ontology construction principles, construction methods, construction process, coding language and construction tools, and at the same time according to the unique resource attributes of Tujia music culture resources.Combing the Tujia music cultural resources related concepts, data attributes, object attributes and so on, and model them, finally build Tujia music cultural resources domain ontology.Secondly, this paper studies query extension technology, and proposes to introduce Tujia music cultural resource domain ontology into query expansion. The basic idea of this method is to introduce ontology technology into query extension method based on local analysis.Ontology technology can provide shared, formalized, explicit and conceptualized representation information, which can provide query extension library in semantic form, and can improve the query extension process based on local analysis.The combination of the two can effectively improve the accuracy of the query.By calculating the similarity between the concepts within ontology, the concepts and search words within the set threshold are added to the query thesaurus, and the retrieval function of the ontology library of Tujia music and culture resources is realized by using the Jena technology of ontology analysis.The query result is returned to the user.Finally, with the combination of Solr search engine technology, a domain ontology based cultural resource retrieval system is designed and implemented.The method of introducing ontology technology into query extension is proposed in this paper to realize the inference and extension of user query words, and finally the query results are obtained.The validity of the method is verified by comparing it with the matching method based on keyword query.The retrieval system based on Tujia music culture resource domain ontology can effectively improve the performance of retrieval and meet the query needs of users.
【學(xué)位授予單位】：華中師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：G252.7

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