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1. simple approach:load:Load data from MAT-file into workspaceexample:array = load('1.txt')2. flexible approach:step 1.Open file, or obtain information about open files: fopen()step2.Read data from binary file: fread() 阅读全文
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Use the Linux OS1. Install GIT:sudo apt-get install git2. Clone from the server:git clone https://code.google.com/p/audio-analyzer-for-android/3. Done:johnny@johnny-Rev-1-0:~$ git clone https://code.google.com/p/audio-analyzer-for-android/Cloning into 'audio-analyzer-for-android'...remote: C 阅读全文
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What Compsci textbooks don't tell you: Real world code sucksBy Dave MandlPosted in Developer, 21st December 2012 10:19 GMTThere’s a kind of cognitive dissonance in most people who’ve moved from the academic study of computer science to a job as a real-world software developer. The conflict lies 阅读全文
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In 2007, computer science lecturer Neil McBridearguedthatcomputer sciencewas going the way of Latin languages…that a variety of factors might contribute to the death of this field, including robots, lack of interest and progress in computing itself. Three years later, computer science seems to be ho 阅读全文
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Eclipse-Window-Preferences-Java-Editor-Content Assist Auto activation triggers for Java:[Add all of the alphabates here, from a to z]. 智能提示:alt+/ 智能填充:ctrl+space 阅读全文
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A style is a collections of properties that specify the look and format of a view or window. They allow to separate the design from the content. Without Style XML, we can design it in the Layout XML:<... 阅读全文
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Java provides three types of comments:Single-Line (C++-Style) CommentsThe simplest comment in Java is the single line comment. It starts with two forward slashes and continues to the end of the line. For example:Figure 1: Single-line comments// this is a single-line commentx = 1; // a single-line co 阅读全文
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Android projects are the projects that eventually get built into an.apkfile that you install onto a device. They contain things such as application source code and resource files. Some are generated for you by default, while others should be created if required. The following directories and files c 阅读全文
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Linux KernelAndroid relies on Linux version 2.6 for core system services such as security, memory management, process management, network stack, and driver model. The kernel also acts as an abstraction layer between the hardware and the rest of the software stack.LibrariesAndroid includes a set of C 阅读全文
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SHOW ALL DATABASES SHOW {DATABASES | SCHEMAS} [LIKE 'pattern' | WHERE expr]SHOW DATABASES lists the databases on the MySQL server host. CREATE DATABASECREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db... 阅读全文
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The mysqladmin program is used to administrate various aspects of the MySQL database server. Using it, the administrator can perform tasks such as: create and delete databases, shutdown the database s... 阅读全文
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LOGIN In CMD: >>mysql.exe –uroot –p >>Enter Password: ******** >>mysql> It’s like this:mysql -uusername -ppassword –hhostAttention: There is no blank after the parameters: -u, -p, –hThe MySQL client ... 阅读全文
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通过using语句实现非GC资源的自动回收。 还需要有try…catch…之类的异常检测语句,检测file.exist。 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data.OleDb; using Syste... 阅读全文
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1. 下载安装ecliplse2. 下载安装Android SDK3.Eclipse安装Developer Tools插件解压“eclipse-java-indigo-SR1-win32”,双击“eclipse”,进入eclipse主界面第一步:点击help->Install New SoftWare->Add按钮Name:任意字母字符Location:https://dl-ssl.google.com/android/eclipse/第二步:加载完“Developer Tools”,点击选中其。第三步:Next第五步:选中“I accept the terms of the li 阅读全文
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name of error:NVIDIA OpenGL DriverNVIDIA display driver files from different (incompatible) versions of the driver have been detected.HOW TO SOLVE:Uninstall the NVIDIA driver and then install it again.It's easy. 阅读全文
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I can not log with my password nor can I change my password with root.Others have met with the problem too.https://ask.fedoraproject.org/question/1518/fc16-adduser-cannot-lock-etcpasswd-try-again-laterhttp://superuser.com/questions/296373/cannot-lock-etc-passwd-try-again-laterhttps://answers.launchp 阅读全文
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Data mining draws upon ideas,1. sampling, estimation, and hypothesis testing from statistics;2. search algorithms, modeling techniques, and learning theories from artificial intelligence, pattern recognition, and machine learning. 阅读全文
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1. ScalabilityIf data mining algorithms are to handle these massive data sets, then they must be scalable.2. High DimensionalityFor some data analysis algorithms, the computational complexity increases rapidly as the dimensionality increases.3. Heterogeneous and Complex DataDealing with data with no 阅读全文
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Data mining is an integral part of knowledge discovery in databases (KDD), which is the overal process of converting raw data into useful information.The process of knowledge discovery in databases:Input Data-> Data Preprocessing(Feature Selection, Dimensionality Reduction, Normalization, Data Su 阅读全文
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Data Mining is the process of automatically discovering useful information in large data repositories.Data Mining techniques are deployed to scour large databases in order to find novel and useful patterns that might otherwise remain unknown. 阅读全文
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Data mining techniques can be used to support a wide range of business intelligence applications such ascustomer profiling, targeted marketing, workflow management, store layout, and fraud detection.It can also help retailersanswer important business questions such as"Who are the most profitabl 阅读全文