Description: 程序说明:
Form1.cs是应用聚类算法DBSCAN (Density-Based Spatical Clustering of Application with Noise)的示例,可以通过两个参数EPS和MinPts调节聚类。
DBSCAN.cs是实现文件,聚类算法的进一步信息请参考“数据挖掘”或者相关书籍
聚类示例数据来自于sxdb.mdb,一个Access数据库。
已知问题及进一步改进建议:
问题:dbscan.cs行64,SortedList不支持重复键,因此若两个数据点距离相同则无法加入集合
解决:采用人为减小一个微小量,使数据点距离不同且不影响聚类结果
上一解决方案的问题:减小double.Epsilon微小量无助于使SortedList认为两点距离以及不同
解决:采用一个指数增长的微小量,连续重试直至SortedList认为距离已经不同
进一步改进建议:可能通过double的强制转型为内存中的byte类型(假设double型转为8个byte)
然后最后一个byte减去0x01可比较漂亮的解决问题,但是……呵呵,C#中我不会这个操作
也可以自己实现一个SortedList,支持重复键,当然,这,好像是微软应该做的工作了 ^_^
Eric Guo
<http://www.cnblogs.com/ericguo/>
-procedures : Form1.cs clustering algorithm is applied DBSCAN (Density-Based Spati cal Clustering of Application with Noise) example, two parameters can EPS and MinPts regulation clustering. DBSCAN.cs is, the clustering algorithm further information please refer to the "data mining" or books related data clustering example from sxdb.m db, an Access database. Known issues and recommendations for further improvement : : 64 dbscan.cs OK, SortedList not support duplicate keys, and therefore if two data points from the same pool can not be solved by adding : By applying an artificially reduce a small amount of data from different points without clustering results on the impact of a solution of the problem : double.Epsilon small decrease in the amount of helplessness to make that 2:00 S Platform: |
Size: 15653 |
Author:Huang Yi |
Hits:
Description: This book offers 226 code recipes applicable to a variety of difficulties that may arise in the process of application development. Topics covered include XML processing, Windows forms, database access, networking, runtime security, cryptography and more.
-This book offers 226 recipes code applicab le to a variety of difficulties that may arise in the process of application development. Topic 's covered include XML processing, Windows forms, database access, networking, runtime security, cryptography and more. Platform: |
Size: 2539804 |
Author:黄瑞宁 |
Hits:
Description: C#开发的CMPP协议SP端平台 1.Sample为示例解决方案 2.GateWaySample是示例项目 3.CMSMGWCenter为短信应用接口,为调用CMSMIF.DLL的示例代码,同时其被GateSample调用. 4.GateWaySample\bin\Debug\GateWaySample.exe为示例可执行文件. 5.DataBase\SMSCenter.DB为示例数据库.-C# development of the SP-CMPP 1.Sample platform solutions for example 2.GateWaySample example is the project to 3.CMSMGWCenter messaging application interface for the call CMSMIF.DLL sample code, while its GateSample was called. 4.GateWaySample \ bin \ Debug \ GateWaySample . for example exe executable files. 5.DataBase \ SMSCenter.DB for the sample database. Platform: |
Size: 151552 |
Author: |
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Description: 完全公开源代码,并无任何许可限制
特别基于大型电子商务网站的系统开发
Microsoft SQL Server 2000后台数据库,充分应用了存储过程的巨大功效
基于类模块的扩展数据访问能力支持任何类型的大型数据库
加密用户登录信息(cookie)
易于安装的系统和应用功能
100%的asp.net的代码,没有COM,java或者其他的格式
完全基于MS建议的系统安全设计
最佳的应用程序,数据库和安全设定
MS建议的最佳用户密码管理设定
极强的系统性能与伸缩性
大量应用缓存以提升系统的性能和浏览速度
方便的功能可伸缩设计-completely open-source, no special license restrictions on the large-scale e-commerce site development system for Microsoft SQL Server 2000 database background, the use of the storage process based on the effectiveness of the tremendous expansion module type data access capability to support any type of large-scale database encryption users login information ( cookie) easy-to-install system and application functions Asp. net 100% of the code, no COM, or other java entirely based on the format recommended by the MS design the best system security applications, databases and security settings recommended by the MS best user password management system set strong Properties and application scalability large cache to boost system performance and viewing convenience features scalable design Platform: |
Size: 935936 |
Author:陈睿 |
Hits:
Description: ACCESS数据库运用,这是通过运用ACCESS与C#的连接,实验数据库与C#的结合。方便用户实现数据库的功能。-ACCESS database application, it is through the application of C# ACCESS connectivity, experimental database with a combination of C#. User-friendly database functions. Platform: |
Size: 19456 |
Author:黄小玲 |
Hits:
Description: 微软关于水晶报表应用程序的实例,这个是数据库连接的实例,共有三个实例。条件限制,只能一个一个传。-Microsoft crystal statements on the application examples of this is connected to the database example, there are three examples. Conditions imposed a one-only. Platform: |
Size: 19456 |
Author:季秀东 |
Hits:
Description: 代码自动生成器
根据数据库定义的表结构, 自动生成C#应用开发的代码(包括数据定义层, 数据访问层, 以及数据库中存储过程的自动生成, 此项目中没有数据库访问原码(MainHead), 请下载我另外上传MainHead.rar-automatic code generator based on the definition of the database table structure, Automatic Generation Application Development C# code (including data definitions layer, data access layer, the database storage and the automatic generation process, this project does not have the database to visit the original code (MainHead) Download me to upload MainHead.rar Platform: |
Size: 277504 |
Author:ZXZ |
Hits:
Description: 程序说明:
Form1.cs是应用聚类算法DBSCAN (Density-Based Spatical Clustering of Application with Noise)的示例,可以通过两个参数EPS和MinPts调节聚类。
DBSCAN.cs是实现文件,聚类算法的进一步信息请参考“数据挖掘”或者相关书籍
聚类示例数据来自于sxdb.mdb,一个Access数据库。
已知问题及进一步改进建议:
问题:dbscan.cs行64,SortedList不支持重复键,因此若两个数据点距离相同则无法加入集合
解决:采用人为减小一个微小量,使数据点距离不同且不影响聚类结果
上一解决方案的问题:减小double.Epsilon微小量无助于使SortedList认为两点距离以及不同
解决:采用一个指数增长的微小量,连续重试直至SortedList认为距离已经不同
进一步改进建议:可能通过double的强制转型为内存中的byte类型(假设double型转为8个byte)
然后最后一个byte减去0x01可比较漂亮的解决问题,但是……呵呵,C#中我不会这个操作
也可以自己实现一个SortedList,支持重复键,当然,这,好像是微软应该做的工作了 ^_^
Eric Guo
<http://www.cnblogs.com/ericguo/>
-procedures : Form1.cs clustering algorithm is applied DBSCAN (Density-Based Spati cal Clustering of Application with Noise) example, two parameters can EPS and MinPts regulation clustering. DBSCAN.cs is, the clustering algorithm further information please refer to the "data mining" or books related data clustering example from sxdb.m db, an Access database. Known issues and recommendations for further improvement : : 64 dbscan.cs OK, SortedList not support duplicate keys, and therefore if two data points from the same pool can not be solved by adding : By applying an artificially reduce a small amount of data from different points without clustering results on the impact of a solution of the problem : double.Epsilon small decrease in the amount of helplessness to make that 2:00 S Platform: |
Size: 26624 |
Author:Huang Yi |
Hits:
Description: This book offers 226 code recipes applicable to a variety of difficulties that may arise in the process of application development. Topics covered include XML processing, Windows forms, database access, networking, runtime security, cryptography and more.
-This book offers 226 recipes code applicab le to a variety of difficulties that may arise in the process of application development. Topic 's covered include XML processing, Windows forms, database access, networking, runtime security, cryptography and more. Platform: |
Size: 2539520 |
Author:黄瑞宁 |
Hits:
Description: 专门用于号码过滤功能的企业级应用软件!里面用到通信、多线程、数据库、文件处理等多项技术。-specialized filtering function for numbers of enterprise application software! Which uses communications, multi-threaded database, document processing and many other technologies. Platform: |
Size: 103424 |
Author:Free Wang |
Hits:
Description: 用c#编写的一个销售管理系统,是数据库的运用,特别适合初学者-With c# Prepared a sales management system is a database application, particularly suitable for beginners Platform: |
Size: 723968 |
Author:gj5683 |
Hits:
Description: xml:学术会议管理系统,visual c#开发数据库方面的运用比较多点,里面的存储过程值得参考-xml: academic conference management system, visual c# database application development more points inside the stored procedure it is also useful Platform: |
Size: 318464 |
Author:林子斌 |
Hits:
Description: 本书从实战着手,通过具体的实例开发讲述了数据库应用系统的开发流程和编程技巧。每个实例包括需求分析、uml系统建模、数据库设计、界面设计,以及代码实现等步骤。全书内容翔实,阐述清楚,各种复杂的技术难点都在书中得以体现。-This book proceed from the actual combat, through concrete examples of the development of a database application system on the development of processes and programming skills. Each instance, including needs analysis, uml system modeling, database design, interface design, as well as the code steps. Informative book on the clear, a variety of complex technical problems are reflected in the book. Platform: |
Size: 24431616 |
Author:范中浩 |
Hits:
Description: 本书是关于C#网络开发的教材,主要包括三个方面内容,首先简要介绍了有关C#网络开发的基础知识;接着讲解基础服务器开发、基础客户端开发、FTP开发、SMTP开发、POP3开发和远程控制开发;最后是高级应用,包括Win32网络组件开发、Web数据库基础、Win32异步套接字数据库开发、XML Web Services开发以及一个完整的分布式网络应用程序开发实例。
本书适合于C#开发人员进行网络开发,对Visual C++ .NET和Visual Basic.NET开发人员也很有参考意义。-This book is on the C# Network development of teaching materials, mainly includes three aspects, first of all briefly introduce the relevant C# Network development based on knowledge then on the basis of server development, the basis of client development, FTP development, SMTP development, POP3 Development and remote control development Finally, advanced applications, including the development of Win32 network components, Web database, Win32 Asynchronous Socket database development, XML Web Services development as well as a complete distributed network application development examples. This book is suitable for C# Developer network development, on the Visual C++. NET and Visual Basic. NET developers is also very useful. Platform: |
Size: 7702528 |
Author:Admrial |
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Description: C#2.0 实例自学手册,书本源代码,
电子工业出版社,
第1章 C#入门,
第2章 基本控件使用,
第3章 容器类控件应用,
第4章 菜单、工具栏与状态栏应用,
第5章 对话框应用,
第6章 输入、输出,
第7章 XML应用,
第8章 操作Office文件,
第9章 GDI+绘图,
第10章 进程与线程,
第11章 网络应用,
第12章 数据库应用,
第13章 ASP.NET应用,
第14章 水晶报表应用,
第15章 DotNetBar商业控件应用,
第16章 Microsoft Enterprise Library应用,
第17章 Dundas图表控件应用,
第18章 使用MapXtreme创建地理信息系统,
第19章 制作安装程序,
第20章 图书馆管理信息系统,
-C# 2.0 example of self-study manuals, books, source code, Electronics Industry Press, Chapter 1 C# Getting Started Chapter 2 the basic controls use Chapter 3 container class control applications Chapter 4 menus, toolbars, and status bar application of Chapter 5 Dialogue box with Chapter 6, the input and output Chapter 7 XML applications Chapter 8 Operation Office file Chapter 9 GDI+ Graphics Chapter 10 process and thread Chapter 11 Network Applications Chapter 12 Database Applications Chapter 13 ASP.NET application of section Chapter 14 Crystal Reports application of section 15 of the controls DotNetBar business applications Chapter 16 Microsoft Enterprise Library application of Chapter 17 Dundas chart control application of Chapter 18 to use MapXtreme to create Geographic Information System Chapter 19 Fabrication and installation procedures for Chapter 20 Library Management Information System Platform: |
Size: 3316736 |
Author:wsadfg |
Hits:
Description: 包括三方面内容:CSharp网络开发基础知识,基础服务器开发、基础客户端开发、FTP开发、SMTP开发、POP3开发和远程控制开发,最后包括win32网络组建开发,web数据库基础,win32异步套接字开发、xml web services开发以及一个完整的分布式网络应用程序开发实例。-Includes three aspects: CSharp web development basics, basic server development, based client development, FTP development, SMTP development, POP3 development, and remote control development, win32 network set up last including development, web database infrastructure, win32 development of asynchronous sockets , xml web services development, and a complete example of a distributed network application development. Platform: |
Size: 15744000 |
Author:朱岩 |
Hits:
Description: 成绩管理系统能帮助教师对学生成绩进行有效的管理,进而提高工作效率。
本实例采用Visual Studio 2008 作为开发工具,采用C#语言和SQL Server 2005 作为后台数
据库。通过参与此系统的开发此系统的开发,读者可以了解Windows 应用的需求分析、设计和
实现的完整过程,掌握SQL Server 2005 数据库的基本管理方法、常用SQL 语言的使用方法以及
C#数据库开发技术,积累有效数据库应用系统实战经验。-Performance management system to help teachers effectively manage student achievement, improve working efficiency. This example uses Visual Studio 2008 as a development tool, using C# language and SQL Server 2005 as database. By participating in the system development of this system development, readers can learn about Windows application requirements analysis, design and implementation of the complete process, master SQL Server 2005 database, the basic management approach, common SQL language to use, and C# database development skills, gain Effective hands-on experience of database application system. Platform: |
Size: 309248 |
Author:卓罗新 |
Hits: