数据项目

This paper summarizes the background and advantage of data mining, as well as the significance of data mining in the scientific research management of colleges and universities firstly, and then discusses the theory of data mining, association rules and the ideas of main algorithm, analyzes the classic Apriori algorithm and its existing problems as well as the basic solutions. After that, this paper proposes Multi-Dimensional Apriori algorithm which is designed specially for the mining of this paper; Then describes the structure of scientific research data mining system, defines subject-oriented mining tasks, including: mining the data about research projects, mining the data about papers, mining the data about academic writings. The association mining process is implemented by programing, a number of stimulating association rules are found, interpreted and analyzed.

本文首先综述了数据挖掘的研究背景、意义以及数据挖掘技术在高校科研管理中的应用现状和意义，然后在对数据挖掘相关理论、关联规则思想及主要算法进行讨论，分析经典Apriori算法及其存在的问题、基本解决方案后，提出了适合本文挖掘的多维Apriori算法的设计方案，并应用于本文挖掘中；接着论文介绍了科研数据的关联挖掘系统的结构，确定了面向主题的挖掘任务，包括：科研项目信息的挖掘、论文信息的挖掘、学术专著信息的挖掘等；设计了关联规则的实施过程，并通过程序编码得以实现，获得了多条有启发性的关联规则，并对其进行了解释与分析。

The approach is efficient when the database is dynamically updated, the frequency value of each itemset is recorded; so the corresponding support and confidence value can be obtained without constructing the complete lattice, which generates the association rules.

该方法适应于数据库的动态数据递增或递减更新，通过记录项目集在数据库中出现的频率值，不需要构造完整的格即可求得项目集的支持度值和可信度值，以获取大项目集，进而求得关联规则。

Therefore it is necessary to research the mechanism of greensand used for high compacted molding methods thoroughly.This subject is one section of the National Natural Science Foundation subject ""Ivestigation on Predicting Method and Mechanism of Springback for High Compacted Sand Molds"", followed of the other completed one named ""Research on Microdeformation of Molding Sand"". A serious of experiments has been done on the reequipped three axial machine under certain technological conditions, and the mechanics, material science, rheologic science. It is systematically studied that the influences on the springback of sand mold were caused by the main influence factors: pressure, compacted rate and the content of soil. Through the analyzed experiments' data, the experienced stress-strain relationship concerning the main influence factors were obtained;under different technical parameter, the springback and spingback's potential energy are compared, the differences and indifferences between them are found out, and the springback's mechanism is discussed;according to the tests' data of YangGuoping coming from Tinghua University, experienced formula of molding sand's springback displacement is induced, the displacement and springback are compared, the margin of error's reasons are analyzed, and they are tested and verified mutually.

本课题为国家自然科学基金项目"高紧实度砂型预测方法及回弹机理的探讨"的一部分，是已结题的国家自然科学基金项目"铸造型砂微变形的研究"的后继，运用力学、材料学及流变学理论，利用改装的三轴仪，在一定的工艺条件下，作了大量系列实验，系统的研究了压实比压、紧实率和膨润土含量对砂型回弹的影响；对实验数据进行了分析和处理，得出了型砂关于压实比压、紧实率和膨润土含量的本构关系的经验公式；把各工艺参数下的型砂产生的回弹量与回弹势能进行比较，找出两者存在的异同点，并对回弹机理进行了探讨；通过清华大学杨国平的实验数据，推导出型砂回弹位移场的经验公式，并与实验测出的回弹量进行比较，分析误差造成的原因，并互相进行了验证。

According to analyses of the existing problems in the evaluation of agent of government investment project ,combining with the characters of the substituted construction system of the government invested project and the project management,a performance evaluation index system of the agent of government invested project was constructed,fdlowing the basic principles of the index settlement.

通过对当前政府投资项目代建单位绩效考评存在问题的分析，结合政府投资项目代建制特点及项目管理特点，遵循指标设置的基本原则，构建了政府投资项目代建单位绩效考评指标体系，引入层次分析法、模糊综合评价法以及数据包络法相结合的AFD综合评价模型，并列举了应用算例。

On the other hand, Complex Product System is becoming more and more important to a country's economy.

很多知识管理项目，在实施过程中变成了信息管理项目、甚至是数据管理项目。

The module of users management expands the the range of users -to the alliance enterprise,which makes the alliance enterprise paticipate in the cooperative design by PLM. The module of right management researches the control method of functional right and the entity data right, and brings forward the functional right and the entity data right based on projection role and identity role, which realizes the right management about dynamic data and static data.

用户管理模块将用户的范围扩展到联盟企业，使得各联盟企业通过PLM可以参与协同设计，权限管理模块研究了数据对象的功能型权限和实体型权限的控制方法，同时提出了一种基于项目角色和身份角色的实体型数据权限，实现了动态数据和静态数据的权限管理。

The main contributions in this thesis are as follows: 1 A "detection prevention-data fusion analysis and data mining- response " layered prevention model based on multisensor data fusion and data mining is proposed, and the systematic structure and system protype are provided.

本论文在项目开发中承担和完成的工作主要有： 1）参与了原型系统的总体方案的设计与论证，提出了一种&检测防御—数据融合分析和数据挖掘—响应&多检测器数据融合和数据挖掘入侵防御模型。

Our algorithm stores a transaction in both HIV format and HIL format,and uses the information contained in HIL format to reduce the number of bit-wise "AND" operation.In this way,the number of "AND" operation in HIV format is equal to the number of non-zero figures in HIL format,having nothing to do with the length of the data in HIV format.

我们提出的挖掘高效用长项集的算法同时以水平项目向量(Horizontal item-vector，简称HIV)和水平项目列表(Horizontal item-list，简称HIL)两种格式存储事务，并利用HIL格式数据提供的信息减少比特级逻辑&与&运算的次数，使逻辑&与&运算的次数等于HIL格式数据的长度，与比特向量的长度无关。

Premises according to the Shanghai Municipal Bureau data show that the formation of the stock of land five main reasons: one due to the reasons for moving the demolition, has generated more than 230 plots of land area is more than 1390 hectares, accounting for non - start with the conditions of the stock of land 38%; as a result of the reasons for not planning to start in a timely manner, including two by double-cut implementation, which involved 109 projects, covering 623 hectares, accounting for 18%; as a result of processing procedures delayed the start time, involving 175 projects, covering 1126 hectares, the proportion of 31%; debt disputes involving 13 projects, there are 16 hectares, accounting for 2%; other reasons, involving 87 projects , accounting for 14%.

房地根据上海市委局的数据显示，形成存量土地的五个主要理由如下：一，由于移动的原因拆毁，产生了230多块土地面积超过一千三百九十〇公顷，占非-启动的条件的存量土地的38 ％；由于原因不打算启动及时，包括两个双削减执行，其中涉及109个项目，涉及623公顷，会计为18 ％；由于处理程序的开始时间推迟，涉及175个项目，涉及一一二六公顷，这一比例为31 ％；债务纠纷，涉及13个项目，有16公顷，占2％；其他原因，涉及87项目，占14 ％。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。