Analysis of Statistical Question Classification for Fact-Based Questions

Question classification systems play an important role in question answering systems and can be used in a wide range of other domains. The goal of question classification is to accurately assign labels to questions based on expected answer type. Most approaches in the past have relied on matching questions against hand-crafted rules. However, rules require laborious effort to create and often suffer from being too specific. Statistical question classification methods overcome these issues by employing machine learning techniques. We empirically show that a statistical approach is robust and achieves good performance on three diverse data sets with little or no hand tuning. Furthermore, we examine the role different syntactic and semantic features have on performance. We find that semantic features tend to increase performance more than purely syntactic features. Finally, we analyze common causes of misclassification error and provide insight into ways they may be overcome.     

数学化对学生学习数学概念的影响——以“小数”概念学习为例

"数学化"这一概念最初是由荷兰数学家和数学教育家弗赖登塔尔(H.Freudenthal,1905—1990)提出的。"数学化"既是数学教学的过程,也是数学教学的结果。以"小数"概念学习为例,将数学化的过程呈现在数学概念的教学中,第一次学习是水平数学化,即由现实问题到数学问题的学习;第二次学习是垂直数学化,即由具体问题到抽象概念的学习。在这两次教学实践过程中,生活经验、模型支撑、多种表征都对学生"小数"概念数学化有一定的帮助。     

语文教学目标陈述的学理与策略

在实际语文教学中,教学目标的陈述普遍存在一定程度的含糊性和随意性。导致这一问题的原因较为复杂,语文教师陈述教学目标缺乏科学理论的指导无疑是其中一个重要原因,因此,从理论上探讨语文教学目标陈述问题十分必要。现代科学心理学有关教学目标陈述的理论主要包括分类分层陈述理论、行为目标理论和行为样品理论。依据这些理论,语文教师在设计教学目标时应该针对学生的语文学习结果分类陈述,针对学生的语文学习过程分层陈述,针对学生的言语行为规范陈述。     

学习工厂:培养适应全球先进制造的卓越人才——美国宾州州立大学工程教育案例

美国宾州州立大学工程教育使命是培养适应未来全球先进制造业竞争环境的卓越工程师;该大学工程教育与工业界一起制定并实施了制造类专业的课程体系及培养模式,重点培养学生的工程创造、技术创新能力及产品商业化能力。该培养模式获得巨大成功,使高等工程教育更加务实,值得我国正在实施的卓越工程师计划学习与借鉴。     

基于OBE理念,构建通识教育课程教学与评估体系——以清华大学为例

国内高校积极探索实现通识教育的路径已有多年,但其效果在一定程度上仍然受到质疑。课程是实现通识教育的主要载体,清华大学在探索构建通识教育课程体系过程中,尝试性地采用了工科教育中广泛使用的成效基准教育理念与能力导向课程设计来分析当前我国大学通识教育的课程建设,指出通识教育众课程与通识教育目标之间欠缺逻辑对应的普遍性问题。本文重点介绍了清华大学通识教育课程建设中的困惑和设想,探讨了如何锚定与对应课程与能力目标之间的逻辑关系。本文建议高校在通识教育初建阶段将引入OBE框架以及能力导向课程设计理念可作为一种选择,此举有助于厘清大学通识教育在本科教育中的定位与通识课程之间的逻辑和结构关系。     

基于“4I”的工程人才培养模式改革

高等工程教育正面临着来自外部和内部的双重挑战,大学需要从学科、产业、社会、人才成长等四个维度重构以学生为中心的工程学习共同体。华南理工大学以高端工程科技人才培养为目标,以"4I"(交叉复合、产学研合作、国际化教学、深度工程学习)为路径,推进工程人才培养模式改革,取得了显著成效。     

图书馆与慕课课程的互动推广路径探析

针对慕课的快速发展及国内外图书馆界对慕课的关注及推广现状,探讨图书馆推广与服务慕课课程的互动对策。图书馆在面向院系教学服务的过程中,可将慕课推广与图书馆推广有机结合,依托图书馆空间与服务,推广慕课理念和课程,同时借助宣传慕课理念和课程,推广图书馆资源和服务。并从慕课资源的整合与导航,学科服务,资源荐购服务,图书馆新媒体宣传,图书馆专题推广活动五个途径探讨了互动推广的途径。     

Does Physical Activity Enhance Learning Performance?: Learning Effectiveness of Game-based Experiential Learning for University Library Instruction

This paper reports research results of the proposed experiential learning using a game-based educational material. The educational material was an application running on a mobile device and was supported for learners to study university library instruction. During the experiential learning, the learners answered several quizzes provided from the educational material. The quizzes were including experiential contents such as actually to find an academic journal or to reserve a learning room. In order to evaluate learning effectiveness of the experiential learning, this research made a comparative experiment. The experimental group used the educational material and the control group used another educational material of e-learning (non-experiential) but the contents was almost same as the contents of the experiential learning. The comparative experiment took several evaluation elements such as pre-/post-test scores, delayed-test scores and learning motivation scores based on IMMS of ARCS model. The experimental results revealed that experiential learning was superior for the several elements of these metrics. This research, furthermore, analyzed learner's operation data to the educational material and learner's behavior data during the learning in the experimental group. The analyzing results showed three types of the learning behaviors and indicated that an instructor needs to adopt suitable instructional design to each type to bring superior learning effectiveness.     

On the same page: Improving the connection between public services units in academic libraries

Communication quality between public service units in academic libraries can make the difference between mediocre and exceptional service. If units do not communicate well, patrons may receive inaccurate information and experience short-term frustration, leading to long-term damage to the library's reputation. Poor communication creates adverse effects on employees through decreased productivity, negative work culture, and low morale. This article explores the importance of quality communication through a review of the literature and a case study at one academic library. The authors share practical communication improvement strategies for libraries of every size and fiscal ability.