面向精细化管理的校园信息化系统研究

高校的高质量发展需要对学生、教师、日常管理等实现精细化管理和分析。将精细化管理融入到校园信息化系统中,有助于实现高校对教师、学生以及行政人员的细粒度管理,有助于高校管理效益最大化和最优化。本文阐述了信息化建设与高校精细化管理之间的交互关系,并在此基础上提出并设计了一款适合于精细化管理的校园信息化系统。     

高校计算机机房信息化管理的实践与分析

计算机教学课程是当下高校教学模式中的一项重点内容,高校的计算机机房是学生进行上机操作、学习计算机理论知识、掌握计算技术的主要场所,因此实现计算机机房的信息化管理具有显著意义.本文从高校计算机机房管理的主要方向出发,分析了实现高校计算机机房信息化管理的方式,供从事高校计算机机房管理的工作人员参考.     

试探高校教务管理信息化

高校教务管理是一项复杂的综合性工作,其中包含的工作主要有教学方面的学生学习管理、考试管理、课程设置等,教务方面的高校中的繁琐事件,而通过实施信息化管理,实现了高校教务管理的智能化、网络化、系统化,更有利于高校的发展。因此,本文主要针对于高校教务管理的信息化进行了具体的分析,希望通过本文的探讨,能够进一步提高高校教务管理信息化的水平。     

高校工会管理系统的设计与实现

本文利用管理信息系统的概念和结构,结合工会信息管理的要求,主要完成对高校工会管理系统的设计.所实现的系统包括对工会组织管理、工会福利和活动管理、工会会员信息管理、工会会费管理、系统信息管理等,利用此系统实现了对高校工会管理的办公自动化.     

高校工会管理系统的设计与实现

本文利用管理信息系统的概念和结构,结合工会信息管理的要求,主要完成对高校工会管理系统的设计。所实现的系统包括对工会组织管理、工会福利和活动管理、工会会员信息管理、工会会费管理、系统信息管理等,利用此系统实现了对高校工会管理的办公自动化。     

高校科研管理信息化平台设计与实施研究

实现高校科研信息化是目前科研工作的一个重要内容,本文分析了目前高校科研管理信息化的现状和发展趋势,阐述了如何使用当前主流技术,设计并实现高校科研管理信息化平台,为最终能够完全实现科研管理信息化服务提供了参考。     

基于工作流的高校办公系统的研究与实现

研究高校办公系统的架构和关键实现技术,提出用自定义表单实现自定义工作流的定义,以基于部门角色的访问权限管理实现用户及权限管理,给出以笔迹留痕、电子印章、系统日志等方法增强安全性的高校办公系统实现方案。     

大学生参与高校民主管理的问题及对策分析

发展基层民主,是党的十八大作出的重大战略部署。文章探讨了大学生参与高校民主管理的意义和存在的局限性以及实现大学生参与高校民主管理的的对策,目的是促进高校大学生民主的发展,以更好的实现高校大学生的民主管理。     

基于RFID技术的高校固定资产管理系统设计

本文结合目前高校固定资产的管理现状,提出了基于RFID技术的高校固定资产信息化管理网络方案,以加强高校的固定资产管理,进一步推进高校的信息化管理建设,提高高校的固定资产管理效率,实现固定资产管理的保值。     

高校教务管理系统数据仓库的设计与实现

高校教务管理信息化以来,各高校相继建立了基于联机事务处理的教务管理系统,如何在现有的教务管理系统基础上建立起教务管理数据仓库,充分挖掘有价值的信息成为学者们研究的重点,文章从数据仓库体系结构、模型设计、主题划分、数据加载和联机分析实现的角度对高校教务管理数据仓库的设计与实现进行了探讨,旨在探索高校教务数据仓库的方法与途径。     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.     

Editorial: Special issue on recent advances in hybrid control theory and applications

正The demands of a rapidly advancing technology for faster and more accurate controllers have always had a strong influence on the progress of automatic control theory.In recent years control problems have been arising with increasing frequency in widely different areas,which cannot be addressed using conventional control techniques.The principal reason for this is the fact that a highly competitive economy is forcing systems to operate in regimes where     

Information for Authors

正Aim The Journals of Zhejiang University-SCIENCE(A/B/C)areedited by the international board of distinguished Chinese andforeign scientists,and are aimed to present the latest devel-opments and achievements in scientific research in China andoverseas to the world’s scientific circles,especially to stimulateand promote academic exchange between Chinese and for-eign scientists everywhere.     

Enhancing a leaf radiative transfer model to estimate concentrations and in vivo specific absorption coefficients of total carotenoids and chlorophylls a and b from single-needle reflectance and transmittance

The relative concentrations of different pigments within a leaf have significant physiological and spectral consequences. Photosynthesis, light use efficiency, mass and energy exchange, and stress response are dependent on relationships among an ensemble of pigments. This ensemble also determines the visible characteristics of a leaf, which can be measured remotely and used to quantify leaf biochemistry and structure. But current remote sensing approaches are limited in their ability to resolve individual pigments. This paper focuses on the incorporation of three pigments—chlorophyll a, chlorophyll b, and total carotenoids—into the LIBERTY leaf radiative transfer model to better understand relationships between leaf biochemical, biophysical, and spectral properties.Pinus ponderosa and Pinus jeffreyi needles were collected from three sites in the California Sierra Nevada. Hemispheric single-leaf visible reflectance and transmittance and concentrations of chlorophylls a and b and total carotenoids of fresh needles were measured. These data were input to the enhanced LIBERTY model to estimate optical and biochemical properties of pine needles. The enhanced model successfully estimated reflectance (RMSE = 0.0255, BIAS = 0.00477, RMS%E = 16.7%), had variable success estimating transmittance (RMSE = 0.0442, BIAS = 0.0294, RMS%E = 181%), and generated very good estimates of carotenoid concentrations (RMSE = 2.48 µg/cm², BIAS = 0.143 µg/cm², RMS%E = 20.4%), good estimates of chlorophyll a concentrations (RMSE = 10.7 µg/cm², BIAS = − 0.992 µg/cm², RMS%E = 21.1%), and fair estimates of chlorophyll b concentrations (RMSE = 7.49 µg/cm², BIAS = − 2.12 µg/cm², RMS%E = 43.7%). Overall root mean squared errors of reflectance, transmittance, and pigment concentration estimates were lower for the three-pigment model than for the single-pigment model. The algorithm to estimate three in vivo specific absorption coefficients is robust, although estimated values are distorted by inconsistencies in model biophysics. The capacity to invert the model from single-leaf reflectance and transmittance was added to the model so it could be coupled with vegetation canopy models to estimate canopy biochemistry from remotely sensed data.     

Mr. Twinn’s bombes

This article discusses the history and design of the special versions of the bombe key-finding machines used by Britain’s Government Code & Cypher School (GC&CS) during World War II to attack the Enigma traffic of the Abwehr (the German military intelligence service). These special bombes were based on the design of their more numerous counterparts used against the traffic of the German armed services, but differed from them in important ways that highlight the adaptability of the British bombe design, and the power and flexibility of the diagonal board. Also discussed are the changes in the Abwehr indicating system that drove the development of these machines, the ingenious ways in which they were used, and some related developments involving the bombes used by the U.S. Navy’s cryptanalytic unit (OP-20-G).