基于粗糙―模糊集的Web信息检索改进模型

针对传统信息检索模型对不确定性知识处理的不足,提出一种基于粗糙集的信息检索改进模型,并以粗糙集技术为支撑,结合模糊集合理论,对查询进行泛化以提高查询性能,同时给出该模型的关键实现算法及性能评估方法。该模型能够提高信息检索的效率,具有较高的理论及应用价值。     

精确数据的模糊查询工具的设计与实现

针对人员信息管理的数据查询操作，在SQL语言中定义了模糊词隶属函数和语言算子隶属函数的函数及相关存储过程，以实现人员信息管理数据库的模糊查询。     

A multi-criteria approach for the group assessment of an academic course: A case study

The present paper aims at proposing a structured methodology to evaluate the results of an academic training course addressed to postgraduate students. The evaluation process intends to identify the efficacy of an education course by means of a comparison between the general objectives and the results expected by the students. Since the evaluated aspects by the students, detected by means of questionnaires, are both quantitative and qualitative, the proposed methodology is based on the analytic hierarchy process (AHP). In order to facilitate the evaluation process, answers have been modelled by means of linguistic variables. In particular, different evaluation scales have been used and each one is characterized by different levels associated to different fuzzy numbers.     

铜锍吹炼中氧气利用率校验范围的模糊确定

用模糊集合的方法计算出氧气利用率的范围,对预报模型的结果进行校验.     

基于PIC16F946的IC卡燃气表的设计

介绍了基于PIC16F946 IC卡燃气表的设计、PIC16F946芯片的特点、给出了设计电路图和程序流程,对锈蚀问题进行了讨论并给出了采用模糊控制的解决方案。     

对称群Sn的极小生成集

本文给出了Sn的几个子集，并证明了它们均可极小生成Sn。     

小阶数点稳定子群的有限本原置换群

主要讨论点稳定子群阶数为1和2的本原置换群的结构．     

Orienting Schools Toward Equity: Subgroup Accountability Pressure and School-Level Responses

Abstract

This article examines school-level responses to subgroup accountability pressure through an ethnographic case study of a school cited for failing to make adequate yearly progress for student subgroups. Concerns about the calculations and measures used to derive the citation and reservations about acting on accountability data delegitimized the citation and rendered the identified subgroups irrelevant to daily practice. Under district guidance, compliance with subgroup accountability was independent of the school's internal efforts to promote equity.     

格序群的可迁性

利用格序置换群是研究格序群的重要工具之一,本文论述了在格序置换群里起重要作用的概念:n可迁性。并论述了迷向子群在其中的作用。     

模糊零化子

在格蕴涵代数中提出了模糊零化子的概念,讨论了模糊零化子的一些特殊性质,证明了格H蕴涵代数的模糊零化子是格H蕴涵代数的模糊理想。