数学研究中的辩证法

数学中蕴含着丰富的哲理，数学不仅给我们以知识和能力，同时也给我们人生以乐趣和启迪。     

Enhancing click models with mouse movement information

User interactions in Web search, in particular, clicks, provide valuable hints on document relevance; but the signals are very noisy. In order to better understand user click behaviors and to infer the implied relevance, various click models have been proposed, each relying on some hypotheses and involving different hidden events (e.g. examination). In almost all the existing click models, it is assumed that clicks are the only observable evidence and the examinations of documents are deduced from it. However, with an increasing number of embedded heterogeneous components (e.g. verticals) on Search Engine Result Pages, click information is not sufficient to draw a complete picture of process of user examination, especially in federated search scenario. In practice, we can also collect mouse movement information, which has proven to have a strong correlation with examination. In this paper, we propose to incorporate mouse movement information into existing click models to enhance the estimation of examination. The enhanced click models are shown to have a better ability to predict both user clicks and document relevance, than the original models. The collection of mouse movement information has been implemented in a commercial search engine, showing the feasibility of the approach in practice.     

多媒体设备常见故障及快速处理

多媒体设备为现代教学提供了良好的的教学平台,但由于使用频率过高而常常出现故障,本文就自己在工作中常见的多媒体故障进行归纳,着重介绍了对多媒体教室主要设备突发故障的快速解决办法。     

八楞山旅游风景区二二八平台景区设计方案

从构思、布局、植物配置等方面,介绍了二二八平台景区设计的理念和手法,特别是旅游风景区规划设计应与自然环境相融合,注意生态环境的保护。     

基础教育质量监测与评价的测量工具研究

首先对教育教学测量方法进行分类,然后重点介绍行为测量和统计测量,并通过教育教学中质量监测的实例,说明S—T分析、Flanders课堂互动分析、数据包络分析、主成分分析、马尔可夫分析等测量工具使用方法。     

中西企业文化差异与跨文化管理

企业文化在企业的经营和发展过程中起着举足轻重的作用,因此越来越受到企业界的关注。中西企业文化差异表现在管理理念、思维方式、决策方式、基本价值观等方面。处于国际化进程中的中国,应该重视中西企业文化的差异比较研究,实现有效的跨文化管理。本文探讨了实现跨文化管理的有效策略。     

“薄利多销”、“高价限销”与微观经济学的价格决策—商品价格变动的最优化数量界际

根据商品价格弹性理论，“薄利多销”，“高价限销”是微观价格决策中增加总收益的两种常见方法，但是，商品降价（或提价）的具体界限在实践中却很难把握，增加了生产经营管理的难度，为此，本提出商品价格变动的最优化数量界限，以增强经济学理论的应用性。     

Biological Conceptualization of Race

Science & Education - The conception of racial categories from a biological perspective is unconsciously embedded in the individual’s cognition. This is true even among university...     

河西走廊城市化与产业结构调整协调研究

产业结构层次低及产业内部结构不合理导致了河西走廊经济发展粗放扩张，制约了城市化水平的提高。本文通过分析河西走廊城市化和产业结构的现状及其相互制约机制，论述了产业结构调整与加速城市化的互动关系和必要性。在此基础上，提出了协调二者相互促进的对策建议。     

PLC在机械手控制系统中的应用

介绍了PLC机械手控制系统 ,依据生产工艺流程 ,绘出PLC控制I/O分配图 ,程序框图及梯形图。