一种基于神经网络的模糊推理方法

对于Zadeh的模糊关系合成法则（简称CRI方法），选择一个适宜蕴涵关系矩阵是至关重要的。通常蕴涵关系矩阵的元素值是通过一个所构造的数学表达式计算的，或是由领域专家凭经验直接给出。然而，有时，特别是对于后一种情形，CRI法不能满足模糊推理最基本的一致性要求。文章构造了一个神经网络用于模糊推理，新方法不仅是CRI方法的推广，而且远比CRI方法易于满足推理的一致性要求。得益于神经网络的长处，新方法具有灵活性、可调性。文章给出了权值的具取值法。     

A new view of fuzzy hypernear-rings

In this survey article, we first introduce the concept of quasi-coincidence of a fuzzy interval value with an interval valued fuzzy set. This concept is a generalized concept of quasi-coincidence of a fuzzy point within a fuzzy set. By using this new idea, we consider the interval valued (∈,∈∨q)-fuzzy sub-hypernear-rings (hyperideals) of a hypernear-ring, and hence, a generalization of a fuzzy sub-near-ring (ideal) is given. Some related properties of fuzzy hypernear-rings are described. Finally, we consider the concept of implication-based interval valued fuzzy sub-hypernear-rings (hyperideals) in a hypernear-ring, in particular, the implication operators in Lukasiewicz system of continuous-valued logic are discussed.     

On the finite and general implication problems of independence atoms and keys

We investigate implication problems for keys and independence atoms in relational databases. For keys and unary independence atoms we show that finite implication is not finitely axiomatizable, and establish a finite axiomatization for general implication. The same axiomatization is also sound and complete for finite and general implication of unary keys and independence atoms, which coincide. We show that the general implication of keys and unary independence atoms and of unary keys and general independence atoms is decidable in polynomial time. For these two classes we also show how to construct Armstrong relations. Finally, we establish tractable conditions that are sufficient for certain classes of keys and independence atoms not to interact.     

Generalized Fuzzy Sub-hyperquasigroups of Hyperquasigroups

This paper concerns a relationship between fuzzy sets and algebraic hyperstructures. It is a continuation of ideas presented by Davvaz (Fuzzy Sets Syst 101: 191–195 1999) and Bhakat and Das (Fuzzy Sets Syst 80: 359-368 1996). In fact, the object of this paper is to study the notion of sub-hyperquasigroup in the ( q)-fuzzy setting.     

一种连续属性动态分类规则数据挖掘方法

连续属性的处理是当前分类规则中一个热点研究问题。以往的算法往往是建立在离散化过程的基础上进行的,然而,该类方法不但会破坏数据中信息的精度,同时也使得概念的转换十分困难。文章在分析了以往算法的基础上,提出了利用包含度和蕴含度的方法进行连续属性的分类规则学习,并对该种方法的属性约简问题进行了讨论。可以看出,通过该文的研究较好地解决了数据精度和动态概念挖掘的问题,利用包含度和蕴含度的方法是一个十分有价值的研究方向。     

On a new class of fuzzy implications: h-Implications and generalizations

A new class of fuzzy implications called the h-implications is introduced. They are implications generated from an additive generator of a representable uninorm in a similar way of Yager’s f- and g-implications which are generated from additive generators of continuous Archimedean t-norms and t-conorms. Basic properties of these implications are studied in detail. Modifications and generalizations of the initial definition are presented and their properties studied and compared between them. One of the modifications, called (h, e)-implications, is another example of a fuzzy implication satisfying the exchange principle but not the law of importation for any t-norm, in fact for any function F : [0, 1]² → [0, 1].     

蕴函逻辑函数和蕴函逻辑门的研究

本文引出蕴函逻辑函数和蕴函逻辑门的新概念,利用蕴函逻辑门作为大规模数字集成电路的基本单元可以简化电路,减小电路的功耗。文中列举了采用蕴函门实现的各种基本逻辑电路,并简要叙述它们的优缺点。     

EXCEL在转换题录文摘型文献中的技巧应用

题录文摘型文献是我们常用的一种二次文献。我们在文献资料的利用过程中常需将题录文摘型文献转换成数据表格式，如果用EXCEL处理这种过程，将会给我们带来极大的便利、提高工作的效率。本文以实例对此进行阐述。     

湘南古民居中的石雕艺术研究

湘南古民居是一种具有强烈地域文化特征的民间建筑,附属其中的石雕艺术也凝聚了湘南先民的精神与文化内涵,体现了富有地方特色的人文思想。石材质地、经济基础、时代审美、工艺水平等因素共同形成了湘南古民居中石雕艺术的特征。