Web网页知识获取技术

描述一种基于类自然语言理解的Web文本知识自动获取技术. 用领域文法描述Web网页文本,将该领域文法转换成描述句子信息的、符合正则表达式规范的规则,使用该规则把Web网页文本转换为表示网页知识的语义三元组,最后形成领域知识库. 试验数据表明,通过本技术生成的领域知识库中不同类型网页数据的召回率平均值是71.5%,准确率平均值是79.1%.     

Developing teacher content understanding by integrating pH and logarithms concepts

Logarithms are notorious for being a difficult concept to understand and teach. Research suggests that learners can be supported in understanding logarithms by making connections between mathematics and science concepts such as pH. This study investigated how an integrated chemistry and mathematics lesson impacted 29 teachers’ understanding of the logarithmic relationship and pH. Pre- and post-test data indicated 23 teachers improved their understanding of logarithms and 28 improved their understanding of pH, suggesting that teacher educators in both science and mathematics context can use this approach to foster better understanding with their teachers and ultimately school students. Our analysis also identified professional development components and teacher characteristics associated with gains in understanding of pH and logarithms, which mathematics and science teacher educators can use to strategically adapt and implement the lesson within other teacher education settings.     

Characterizing the growth of one student’s mathematical understanding in a multi-representational learning environment

The purpose of this study was to characterize the growth of one student’s mathematical understanding and use of different representations about a geometric transformation, dilation. We accomplished this purpose by using the Pirie-Kieren model jointly with the Semiotic Representation Theory as a lens. Elif, a 10^th- grade student, was purposefully chosen as the case for this study because of the growth of mathematical understanding about dilation she exhibited over time. Elif participated in task-based interviews before, during and after participating in a variety of transformation lessons where she used multiple representations, including physical and virtual manipulatives. The results revealed that Elif was able to progress in her mathematical understanding from informal levels to the formal levels in the Pirie-Kieren model as she performed treatments and conversions, movements involving different registers of representations. The results also showed numerous examples of Elif’s mathematical understanding based on folding back activities, complementary aspects of acting and expressing, and interventions. Using the two theories together provides a powerful and holistic approach to a deeper understanding of mathematical learning by characterizing and articulating the growth of mathematical understanding and the way of mathematical thinking.     

对数学理解两种研究模式的探讨

数学理解已成为了数学教育研究的热点，对数学理解的进一步研究需要反思已有研究成果。本文主要从数学理解的表征和实作两种研究模式的概述出发，分析两种模式存在的问题，并对两种研究模式做进一步的思考。     

从张抗抗《作女》看女性生存理想的期待

张抗抗是中国当代很有影响的女作家，她的《作女》从一个崭新的视角，写出了中国当代都市女性理想的生存状态。强烈的女性意识，反传统的爱情婚姻观，执着追求真爱理想是《作女》呈现出的崭新的女性生存理念，有一定的现实意义和美学意义。     

一个面向受限领域的汉语人机接口系统

介绍了一个面向受限领域（ＲｅｓｔｒｉｃｔｅｄＤｏｍａｉｎ）的汉语人机接口系统ＣＩＳ，它能处理受限领域是里一个单句，详细论述了ＣＩＳ的设计思想，系统结构及实现技术。     

汉语语音识别与智能音字转换系统的研究

本文介绍了我们开发的“汉语声控电脑打字机”的结构、功能以及系统实现中的一些关键技术，本系统是一个特定人、孤立词、大词汇量的汉语语音识别与理解系统，其最终识别率可达９５％以上。     

语用前提对话语理解的影响

语言交际是交际双方的互动过程，涉及发话者的话语产生和受话者的话语理解，而话语理解对交际成功至关重要。本文试从话语理解的先决条件——语用前提的定义出发，通过文学作品中的会话分析，具体说明语用前提——话语理解的先决条件和推导会话含义的基本依据——对话语理解的制约和引导作用。     

从郑樵《通志》看纪传体通史编纂工作的发展

郑樵的《通志》在继承前人成果、经验、方法的基础上加以创新，建立了一套完整的历史编纂学体系，“自成一家言”。其特点是：一是强调了历史编纂学上的继承与创新问题；二是丰富了史书记载的内容，使纪传体史书变的更加丰富多彩；三是论证了治史必求会通的准则，使通史的内涵更为明朗；四是批判了灾祥、占候之说，提倡实学研究精神；五是总结出了一套较为完整的校雠学理论。     

翻译中的关联

语用学的发展给翻译带来新的研究角度。关联理论的关联原则从话语的语境效果及认知努力研究语言的相关性，因而在翻译理解中起着重要作用。同时，这一原理为翻译评判也提供了一个新的依据。