IBM Rational的软件配置管理(SCM)

阐述了IBM Rational的软件配置管理工具的功能、运行环境和软件配置管理策略。利用其版本控制、工作空间管理、并行开发支持、过程控制、构建和发布管理、异地开发支持和变更请求管理等功能,为商业关键的软件资产提供了建立、更新、构建、递送、重用和维护的能力,它是软件项目管理的有力工具。     

Benefits of the combined use of stochastic multi-criteria evaluation with principal components analysis

Multi-criteria analysis techniques are well known decision support methods and are widely applied in various disciplines. However, defining the input criteria values for the basic decision matrix which contains all criteria values for every alternative considered is normally not an easy task. Especially qualitative criteria variables which are frequently represented as linguistic terms may be hard to quantify. Moreover, some criteria cannot be represented by just one crisp value, but they may offer a range of possible values. Stochastic multi-criteria approaches which call for distribution models instead of single numerical values can be used in these cases. Outranking multi-criteria methods proved that simulation based stochastic techniques are well suited to give better insight into the preference structure of a variety of decision alternatives. However, besides the knowledge of the preference structure, it is also important to find out about the similarity of decision alternatives which allows a modeller to categorize a decision alternative as a really unique option or as just one option out of a greater subset of very similar alternatives. To be able to perform this categorization, principal components analysis (PCA) was used. The results of the PCA are compared to the results of a stochastic outranking analysis.     

道路网络抗震功能失效空间决策支持方法研究

地震作用后桥梁的破坏是导致道路网络功能失效的主要原因。在进行道路网络抗震功能失效分析这一决策过程中,不仅要应用空间分析模型对空间数据进行分析,而且也要对属性数据进行有效的决策分析,因此本文结合了G IS(地理信息系统)与DSS(决策支持系统),形成了以模型库为驱动核心的道路网络抗震功能失效分析空间决策支持,本文着重对数据库及模型库的构建进行了深入研究。     

Two Ordinary Kriging Approaches to Predicting Block Grade Distributions

Multigaussian kriging aims at estimating the local distributions of regionalized variables and functions of these variables (transfer or recovery functions) at unsampled locations. In this paper, we focus on the evaluation of the recoverable reserves in an ore deposit accounting for a change of support and information effect caused by ore/waste misclassifications. Two approaches are proposed: the multigaussian model with Monte Carlo integration and the discrete Gaussian model. The latter is simpler to use but requires stronger hypotheses than the former. In each model, ordinary multigaussian kriging gives unbiased estimates of the recoverable reserves that do not utilize the mean value of the normal score data. The concepts are illustrated through a case study on a copper deposit which shows that local estimates of the metal content based on ordinary multigaussian kriging are close to the optimal conditional expectation when the data are abundant and are not dominated by the global mean when the data are scarce. The two proposed approaches (Monte Carlo integration and discrete Gaussian model) lead to similar results when compared to two other geostatistical methods: service variables and ordinary indicator kriging, which show strong deviations from conditional expectation.     

关联规则候选项支持频度的研究

总结了支持频度的性质,提出了独立支持频度、固定项集频度守恒性与差值支持频度等相关定义与性质,这些性质真实再现了关联规则父子频度项集间的关系。在差值支持频度的引用,充分利用差值支持频度在关联规则挖掘中的重要性,使得算法能够更加精确的预测候选项集的支持频度,从而实现再次减少候选项集的数目的目的。     

面向小样本分类的高光谱影像特征提取

研究了面向小样本分类的高光谱影像特征提取技术，提出了一种用于小样本分类的投影寻踪指标和基于SVMPP的高光谱影像特征提取方法；并借助误差校正输出码，将两类问题的特征提取推广到多类情况。通过高光谱影像分类实验证明，该方法具有很强的小样本学习能力，能够在先验信息很少的情况下较准确地提取地物的分类特征。     

路堑边坡的工程路径与坡体岩土的响应

路堑边坡传统的自上而下开挖再自下向上支护的工程路径,使边坡暴露的时间长,遭受风化、卸荷、侵蚀与入渗,易发生表层坍滑与水土流失。而现代机械化拉槽的施工路径,又使临时边坡过长过陡,常引发边坡坍滑。由于坍滑坡体的强度降低和牵延扩大,使边坡修复工程增大。更新为自上而下分级支护和坡脚预加固的路堑边坡设计施工新理念,可保持开挖坡体的稳定,避免工程灾害。     

Study on retrieve specified objects in massive remote sensing data

In this paper, we show that to retrieve specified objects in massive remote sensing data set is very important in both practice and theory. An algorithm-based content retrieval in the massive data set is studied. To avoid the loss of information, the algorithm based on the Support Vector Machine classification is proposed. Also, the experiment on the real data set is made.     

西安南五台隧道新奥法设计施工

结合西安南五台隧道(第五标段)的开挖、初期支护、现场量测及二次衬砌施工的工程实例，介绍了新奥法在隧道设计施工中的应用。     

INFORMATION NOT DATA: FUTURE DEVELOPMENT OF ROAD WEATHER INFORMATION SYSTEMS

The Swedish Road Weather Information System is a tool for road winter maintenance giving warnings about risk of slipperiness and severe weather conditions. The system is based on climatological research at the University of Göteborg and was initiated by Professor Sven Lindqvist during the 1970s. Knowledge about micro‐and local climate variations is crucial when it comes to forecasting and giving warnings about different kinds of weather‐related traffic disturbances. The progress of climatological research has made it possible to increase the use of road weather data into different applications. Future development will be focused upon development of the road weather information system towards a user‐friendly maintenance decision support system which will enhance the benefits of the road weather information system.