hopfieldNetwork

本文介绍利用注册码（序列号）软件加密方法，该方法可实现一机一个流册码，解密难度大(this document introduce how to protect your software by encrypt the application)

tf–idf, short for term frequency–inverse document frequency, is a numerical statistic that is intended to reflect how important a word is to a document in a collection or corpus.[1]:8 It is often used as a weighting factor in information retrieval and text mining. The tf-idf value increases proportionally to the number of times a word appears in the document, but is offset by the frequency of the word in the corpus, which helps to control for the fact that some words are generally more common than others. Variations of the tf–idf weighting scheme are often used by search engines as a central tool in scoring and ranking a document s relevance given a user query. tf–idf can be successfully used for stop-words filtering in various subject fields including text summarization and classification. One of the simplest ranking functions is computed by summing the tf–idf for each query term many more sophisticated ranking functions are variants of this simple model.

今天给大家带来使用文本文件作为数据源的 ComboBox中国城市三级联动的代码。 1.地区库更新非常方便，不会影响到其他功能（区划代码是唯一的）。 2.文本文件读取来速度很快。(n the past, I used VB6 to write an example of three-level linkage of ComboBox in Chinese cities, using MDB database. A few years ago, the code, the regional database is not the latest. Today we bring you the code of ComboBox, which uses text files as data sources, for three-level linkage of Chinese cities. 1. The regionalization library updates are very convenient and will not affect other functions (regionalization code is the only one). 2. Text files are read very fast.)

说明：  实现了二进制卷积码的viterbi硬判,软判,以及穿孔卷积码(The viterbi hard, soft and perforated convolutional codes of binary convolutional codes are implemented.)

说明：  这是一个用C++编写的坦克大战，里面包含具体的程序，直接运行即可；有一些C++编程能力的，但是没有很好例子的时候可以看看，对于以后游戏开发，会有些作用；(This is a tank battle written in C++, which contains specific programs to run directly; there are some C++ programming capabilities, but there are no good examples when you can see, for future game development, will have some effect;)

I was suprised LabVIEW didn t had the CRC32. So I made it, http://en.wikipedia....edundancy_check, http://www.ietf.org/rfc/rfc1952.txt. It can take a array of U32, one element of U32 or a string. When needed I can create more CRC checks, CRC8, CRC16, etc... but CRC32 is the most used one I readed.

说明：  这是一个单通道的盲源分离算法，是SSA-ICA(This is a single - channel blind source separation algorithm called SSA-ICA)

笨办法学Python3， 通过50道简单题目来上手Python，炒鸡适合初学者（全英文，不过难词较少，过了4级就可以看）(LEARN PYTHON 3 THE HARD WAY__ A Very Simple Introduction To The Terrifyingly Beautiful World Of computers And Code, Third Edition by Zed A. Shaw)

在网络上采用Sniff来在网络底层获取网络信息。-Sniff the network used in the underlying network access network information.

说明：  source achada v 762 wyd c++ brazil, source achada v 762 wyd c++ brazil(source achada v 762 wyd c++ brazil)