小型微型计算机系统
小型微型計算機繫統
소형미형계산궤계통
MINI-MICRO SYSTEMS
2009年
12期
2409-2413
,共5页
本体%基层本体映射%类层次知识库%前向推理
本體%基層本體映射%類層次知識庫%前嚮推理
본체%기층본체영사%류층차지식고%전향추리
ontology%grass-roots ontology alignment%knowledge base of class hierarchy%forward-chaining inference
基层用户产生的本体映射关系蕴含着相关领域内的类层次结构,利用这部分知识可用于新映射关系的产生.但是现有系统存在以下缺点:类层次复杂性考虑不足,矛盾知识不完全删除和效率低下.针对这些问题,文章提出将基层本体映射的相似和等价关系进行不同处理的方法,并重新设计了类层次知识库的前向推理规则.实验表明,改进的系统使效率得到提高,在保证查全率的同时可以明显改善查准率,而且能较好支持本体复合映射.
基層用戶產生的本體映射關繫蘊含著相關領域內的類層次結構,利用這部分知識可用于新映射關繫的產生.但是現有繫統存在以下缺點:類層次複雜性攷慮不足,矛盾知識不完全刪除和效率低下.針對這些問題,文章提齣將基層本體映射的相似和等價關繫進行不同處理的方法,併重新設計瞭類層次知識庫的前嚮推理規則.實驗錶明,改進的繫統使效率得到提高,在保證查全率的同時可以明顯改善查準率,而且能較好支持本體複閤映射.
기층용호산생적본체영사관계온함착상관영역내적류층차결구,이용저부분지식가용우신영사관계적산생.단시현유계통존재이하결점:류층차복잡성고필불족,모순지식불완전산제화효솔저하.침대저사문제,문장제출장기층본체영사적상사화등개관계진행불동처리적방법,병중신설계료류층차지식고적전향추리규칙.실험표명,개진적계통사효솔득도제고,재보증사전솔적동시가이명현개선사준솔,이차능교호지지본체복합영사.
Ontology mapping created by endusers contains class hierarchy structure knowledge of the domain, and using that knowledge could produce new domainal ontology mapping. However, current systems have the following drawbacks: insufficient consideration of class hierarchy complexity, incompletely deleting inconsistent knowledge and inefficiency. Aiming at solving those problems, this paper proposes a new method of dealing differently with "similar to" and "equal to" relations in grass-roots ontology alignment. Besides, this paper redesigned inferences on class hierarchy knowledge base. The experiment result shows that revised system is more efficient than the original one, can produce results with higher precision while maintaining high recall, and can support complex ontology mapping.