CAJ | 학술논문

为提高语义检索过程中术语关系自动判别的效果,引入本体理论,对本体的结构设计及推理机理展开研究.提出基于6元组的本体模型结构,采用描述逻辑作为表达工具,实现了对原子术语、复合术语、实例、实例描述、属性分配以及公理的语义描述.依据Gruber设计原则,从明确性和客观性、一致性、最大单向可扩展性、最小编码偏好和最小本体承诺5方面对本体结构进行评价.从语义检索的需求出发,提出面向术语和面向实例的两种推理类型,以及转换机制和判定算法.将语义检索抽象成信息请求与答复过程,提出4类信息搜索策略,并对语义检索系统的实现进行展望.
위제고어의검색과정중술어관계자동판별적효과,인입본체이론,대본체적결구설계급추리궤리전개연구.제출기우6원조적본체모형결구,채용묘술라집작위표체공구,실현료대원자술어、복합술어、실례、실례묘술、속성분배이급공리적어의묘술.의거Gruber설계원칙,종명학성화객관성、일치성、최대단향가확전성、최소편마편호화최소본체승낙5방면대본체결구진행평개.종어의검색적수구출발,제출면향술어화면향실례적량충추리류형,이급전환궤제화판정산법.장어의검색추상성신식청구여답복과정,제출4류신식수색책략,병대어의검색계통적실현진행전망.
To enable the automatic identification of the relations between terms in semantic retrieval, ontology structure and inference methods are studied. A six-element based ontological structure is proposed for semantic retrieval. Description logic is adoped as an expression tool to semantically describe the atomic term, complex terms, instances, instances descriptions, attribute assignments and axioms. Then, the new structure is evaluated by the Gruber's rules including explicitness, objectivity, consistency, extensibility, minimal encoding bias and minimal ontological commitment. Based on the new structure, this paper proposes two types of reasoning (terms-oriented and instances-oriented) for the application of semantic retrieval, as well as the conversion mechanisms and determining algorithm. Finally, this paper puts forward four kinds of rules for information retrieval, and analyzes the applications of this new structure in semantic retrieval.