basemap

串口助手 基于python3 的 tkinter 编写界面(serial port assistant)

实现GIS算法的基本功能，如绘画，矢量转栅格，橡皮筋技术，点选要素等功能。(Algorithm to achieve the basic functions of GIS, such as painting, Vector to raster, the rubber band technique, click on elements of other functions.)

wcf简单demo，是通过用控制台手动编写service来进行wcf服务的调用(demo of wcf)

aop基础源码,适合初学者进行学习。适合初学者进行学习。(aop foundation source)

Esri CityEngine tutorV1.0 是针对于CityEngine初学者入门的流通教程(This PDF is a wide spread textbook for learners who want to start CityEngine)

说明：  一个牛人做的GIS系统写的开发文档，具有很强的参考价值。。。(Cattle are doing a GIS system, the development of written documents, has a strong reference. . .)

信息共享：建成体系完整、互联互通的电子政务网络系统和国土资源政务系统共建共享的信息资源库； 　　无缝集成：标准化OA、MIS和GIS的有机集成； 　　B/S结构：实现远程办公办文、远程带图作业，维护简单、安装方便 　　信息发布：通过WEBGIS在互联网上图文并茂的发布土地出让、转让，土地拍卖，土地登记、用地手续、矿产手续等各类信息。 　　二次开发：以平台为基础建立的各类应用，可以方便的进行二次开发，满足业务的各种变化需要。(information sharing : to build a complete system, interoperable e-government network systems and land resources Administrative System Sharing of information resources library; Seamless integration : standardization OA, MIS and the organic integration of GIS; B/S : remote-office run, remote operations with map and maintaining a simple, easy installation information dissemination : WEBGIS on the Internet to browse through the release of land sales and transfers, land auctions, land registration, land clearance, mineral procedures of all types of information. Second development : based platform for a variety of applications, to facilitate the conduct of secondary development to meet the business needs of the changes.)

结合HanLP提供的针对机构名的HMM语料，实现了基于HMM模型的机构名实体识别算法。(Implementing Code Extraction of Institution Names with HMM)

加速梯度下降算法求函数最优值,用加速梯度下降算法，可以明显缩短优化时间(accelerated gradient descent algorithm)

logistics分岔图，可观察到倍周期分叉的现象(logistics bifurcation diagram)