说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 泛概念树
1)  General concept tree
泛概念树
2)  concept generalization
概念泛化
1.
On the basis of analyzing the evolution of the definitions for the concepts like information,information retrieval and information users,this essay discusses the problem of the concept generalization(the connotation of concepts is more and more abstract and the extension of them is wider and wider) growing in intensity in the Information Science and the possible damage caused by it.
在对情报、情报检索、情报用户等概念定义的演化进行分析的基础上,探讨了情报学中出现的愈演愈烈的概念泛化(概念的内涵越来越抽象,概念的外延越来越大)问题以及由此可能造成的危害,并剖析了问题形成的原因,以期引起人们对情报学科学化问题的重新关注。
2.
Then concept generalization which is derived from the object oriented idea is applied to attribute reduction.
论文以所提出的研究框架为基础 ,首先给出了一种改进的粗集属性约简的算法和消除冗余属性的方法 ,进而采用面向对象的概念泛化进一步对数据库进行属性约简 ,最后用相似权值法得到产生式规则 ,并将所得规则用决策树来表示 。
3)  pan-accounting conception
泛会计概念
4)  concept tree
概念树
1.
Research on Chinese text retrieval based on expansion of concept tree;
基于概念树扩展的中文文本检索研究
2.
The Research on the Focused Crawling Technology Based on the Concept Tree;
基于概念树的主题爬取技术研究
3.
According to the features of EIS and Data Mining, two algorithms namely concept tree algorithm and decision tree algorithm are selected and used in EIS.
并根据EIS和数据挖掘各自的特点,以概念树算法和决策树算法为例,在分析了它们的算法原理的基础上,探讨了通过属性值间概念存在的层次关系实现EIS数据查询的逐级细化;根据信息论原理,以分类学习为基础,通过计算各属性所含信息量大小,得出判断规则,为EIS辅助决策提供支持。
5)  property-concept-tree
属性-概念树
6)  concept hierarchy tree
概念层次树
1.
This paper improves traditional collaborative filtering algorithm,proposes a new user profile based on concept hierarchy tree,which can make recommender systems still work even when users have no common rating items.
改进了传统的协同过滤算法,提出了基于概念层次树的用户模型,利用该模型进行协同运算,使系统在用户共同评分项极其稀疏时也能产生推荐。
补充资料:思平泉树石杂咏一十首·泛池舟
【诗文】:
桂舟兰作枻,芬芳皆绝世。只可弄潺湲,焉能济大川。
树悬凉夜月,风散碧潭烟。未得同鱼子,菱歌共扣舷。



【注释】:



【出处】:
全唐诗:卷475-104
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条