融合语篇结构特征的答案排序

For the complex questions of Chinese question answering system, we propose an answer extraction method with discourse structure feature combination. This method uses the relevance of questions and answers to learn to rank the answers. Firstly, the method analyses questions to generate the query string, and then submits the query string to search engines to retrieve relevant documents. Secondly, the method makes retrieved documents segmentation and identifies the most relevant candidate answers, in addition, it uses the rhetorical relations of rhetorical structure theory to analyze the relationship to determine the inherent relationship between paragraphs or sentences and generate the answer candidate paragraphs or sentences. Thirdly, we construct the answer ranking model, and extract five feature groups and adopt Ranking Support Vector Machine (SVM) algorithm to train ranking model. Finally, it reranks the answers with the training model and find the optimal answers. Experiments show that the proposed method combined with discourse structure features can effectively improve the answer extracting accuracy and the quality of non-factoid answers. The Mean Reciprocal Rank (MRR) of the answer extraction reaches 69.53%.     

应用AutoCAD绘制园林设计图常见问题解析

归纳学生在应用AutoCAD绘制园林设计图时常见的18个问题,分析原因并提出解决办法,供大家使用AutoCAD 2006时参考。     

先进制造技术的现状与发展趋势

从提出“先进制造技术”的国际背景入手，介绍当今制造技术面临的问题，并展望先进制造技术的发展趋势。     

一种基于集合运算的自动选题算法

本文提出了一种在多重约束条件下的自动选题算法，能满足按试题中各种属性的指定比例选取试题，文中还给出了算法的具体实现及其实例的执行结果。     

对于陕西师大仪器分析考研试题的分析

陕西师范大学是教育部直属六所师范大学之一、国家"211工程"重点建设大学。陕西师大的分析化学专业也是国内高校中比较强的专业,每年有不少学生报考。本文通过对近年来陕西师大仪器分析考研试题的分析,希望能够给准备报考该专业的学生有一些帮助,让他们少走弯路。     

编制煤炭资源储量核实报告几个问题的探讨

通过分析编制煤炭资源储量核实报告中遇到的问题,提出解决方法。     

关于"变压器型式试验的样品组成和样品数量的确定"的问答

问:"变压器型式试验的样品组成和样品数量的确定"(以下文章标题简称为"确定")的1c)中:"如果试验需要重复进行,则还需要再增加3个样品".这项试验(GB19212.1,14.3的试验)为什么可以和什么时候可以重复进行?     

Unpriming: The Deactivation of Thoughts Through Expression.

Unpriming is a decrease in the influence of primed knowledge following a behavior expressing that knowledge. The authors investigated strategies for unpriming the knowledge of an answer that is activated when people are asked to consider a simple question. Experiment 1 found that prior correct answering eliminated the bias people normally show toward correct responding when asked to answer yes-no questions randomly. Experiment 2 revealed that prior answering intended to be random did not unprime knowledge on subsequent attempts to answer randomly. Experiment 3 found that exposure to the correct answer did not influence the knowledge bias but that exposure to the incorrect answer increased bias. Experiment 4 revealed that merely expressing the answer for oneself was sufficient to unprime knowledge. Experiment 5 found that each item of activated knowledge needs to be unprimed specifically, in that correctly answering 1 question does not reduce the knowledge bias in randomly answering another. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

论计算机教学和教师信息素质的培养

从计算机教学本身的特点和教学培养目标出发,改革传统教学模式,就当前计算机教学中存在的问题,提出探讨解决途径;探讨了教师应用现代教育技术的几个偏差,以及解决对策;从学与教这两方面分析,以学生为主体,依据当前学生的特点、教学的具体内容,采取多样化的教学方式,培养学生的科技意识和科学技能,真正把素质教育推向前进,真正提高计算机教学质量。     

汽车使用天然气燃料存在的问题及解决办法

介绍汽车使用天然气燃料存在的功率下降、发动机腐蚀及早期磨损问题，并提出解决办法。