کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6861440 | 1439250 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Knowledge structures in a tolerance knowledge base and their uncertainty measures
ترجمه فارسی عنوان
ساختار دانش در یک پایگاه دانش تحمل و اقدامات نااطمینی آنها
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
دانش پایه تحمل ساختار دانش، وابستگی، تعیین مشخصات، عدم قطعیت، اندازه گرفتن، اثربخشی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
هوش مصنوعی
چکیده انگلیسی
Rough set theory is a useful tool for dealing with imprecise knowledge. Its important notion is a knowledge base. In a knowledge base, one can approximately describe the target notion in terms of existing knowledge structures. A tolerance knowledge base is the generalization of knowledge bases. This paper investigates knowledge structures in a tolerance knowledge base and their uncertainty measures. Knowledge structures in a tolerance knowledge base are first depicted by means of set vectors. Then, dependence and independence between knowledge structures are described by using inclusion degree. Next, mapping and lattice characterizations of knowledge structures are given. Finally, measuring uncertainty of knowledge structures in a tolerance knowledge base is studied, two numerical experiments on the congressional voting records data set that comes from UCI Repository of machine learning databases are conducted, and based on these numerical experiments, effectiveness analysis from the angle of statistics is given to evaluate the performance of the proposed measures. These results will be helpful for establishing a framework of granular computing in knowledge bases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Knowledge-Based Systems - Volume 151, 1 July 2018, Pages 198-215
Journal: Knowledge-Based Systems - Volume 151, 1 July 2018, Pages 198-215
نویسندگان
Bin Qin, Fanping Zeng, Kesong Yan,