悬垂话题句的线性化研究

根据关系化测试法，悬垂话题句可以分为移位生成和基础生成两大类型。话题移位的激发机制来源于移位成分不可解释的[-Topic]特征；线性化理论决定拼读时复制成分的删除模式。移位生成的话题句中，只有删除除了句首所有的话题复本才是最优的选择；基础生成的话题句在循环线性化的理论下可以直接生成。     

基于框架的知识库管理系统

框架系统作为知识表达的最有效方法之一,以其独特的知识结构化风格在知识工程技术中日益受到人们的青睐。本文用Prolog逻辑程序设计语言的表处理技术实现了框架系统,设计出一个基于框架的可自定义并可多途径自行维护的知识库管理系统。     

论济南的区域开发与城市发展

从历史地理角度分析和论述历史时期济南优越的自然环境、便利的水陆交通、发达的地区经济和重要的地理位置是济南兴起和发展的地理基础     

A Novel Human Error Probability Assessment Using Fuzzy Modeling

Human error is one of the significant factors contributing to accidents. Traditional human error probability (HEP) studies based on fuzzy number concepts are one of the contributions addressing such a problem. It is particularly useful under circumstances where the lack of data exists. However, the degree of the discriminability of such studies may be questioned when applied under circumstances where experts have adequate information and specific values can be determined in the abscissa of the membership function of linguistic terms, that is, the fuzzy data of each scenario considered are close to each other. In this article, a novel HEP assessment aimed at solving such a difficulty is proposed. Under the framework, the fuzzy data are equipped with linguistic terms and membership values. By establishing a rule base for data combination, followed by the defuzzification and HEP transformation processes, the HEP results can be acquired. The methodology is first examined using a test case consisting of three different scenarios of which the fuzzy data are close to each other. The results generated are compared with the outcomes produced from the traditional fuzzy HEP studies using the same test case. It is concluded that the methodology proposed in this study has a higher degree of the discriminability and is capable of providing more reasonable results. Furthermore, in situations where the lack of data exists, the proposed approach is also capable of providing the range of the HEP results based on different risk viewpoints arbitrarily established as illustrated using a real‐world example.     

转变观念 深化改革——关于教育技术的一些思考

教育技术是一个新兴的领域和学科。它使教育产生革命性变化 ,改变着教育的方式、方法以及内容 ,转变着人们的教育、教学观念 ,对教育界产生了强烈的冲击     

关于珠三角河网地带路桥衔接处沉降差问题的探析

对珠江三角河网地带存在严重的路桥衔接处路面沉降差问题的原因进行了分析，指出目前设计规范存 在的不足，提出了解决该问题的建议，并介绍处理该问题的工程实践方法．     

论钱钟书的学术个性

钱钟书为中国二十世纪罕见的具有鲜明学术个性的文化巨人和学术大师。真理之勇和文章之德是其毕生所坚持的学术品格;文学艺术的创作与鉴赏为其兴趣所在和努力方向;以语言为工具、材料为基础是其一贯的治学态度;超越种族差异而走上中西融通之路是其基本的文化观念;打通意识和史有诗心是其基本的学术观念;循环阐释是其主要的阐释原则和方法。     

铁路货运站营销分析系统的规划与设计

基于对铁路货运站市场营销策略的分析,采用结构化设计和PowerBuilder 6.5程序设计的方法,对铁路货运站营销分析系统进行了规划与设计.该系统是在进行货运市场份额调查的基础上,建立货主信息库,通过实施客户经理制,对货运市场进行需求分析.为计算机辅助铁路市场营销决策的研究开拓了新的天地.     

News

U. S. National Income Series Revised—Congress Votes No on Censuses of Business and Manufactures—Britain Revises Living Cost Index-U. S. and U. K. Surveys Uncover Lacks in Statistical Training-Forthcoming Statistical Conferences     

构建经济管理类专业实践教学基地的思考

本文针对经济管理类专业实践教学基地构建问题进行了论述,指出要根据应用性和实践性的特点,以实习、实训相结合,职业能力与专业能力相结合,校内、校外相结合的实践教学体系构架。