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How do I determine k when using k-means clustering?
...lowing paper:
http://www.ijarcsms.com/docs/paper/volume1/issue6/V1I6-0015.pdf
There is also another method called G-means, where your distribution follows a Gaussian Distribution or Normal Distribution.
It consists of increasing k until all your k groups follow a Gaussian Distribution.
It requires...
Repeat table headers in print mode
... Neither does Flying Saucer, which I am using to generate a PDF. I will also ask this question on the Flying Saucer mailing list to see if there is another way to do this.
– avernet
Nov 8 '08 at 2:04
...
技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术
...好。在设计第一个长相匹配的网站时他知道整合爱德华的算法。在设计facebook时知道怎么利用其他学校都想和哈佛名牌学校的学生交友、如何通过熟人关系网络邮件营销、添加用户是否单身的标示（最后这个功能大获成功）。
...
Node.js quick file server (static files over HTTP)
... 'audio/wav',
'.mp3': 'audio/mpeg',
'.svg': 'image/svg+xml',
'.pdf': 'application/pdf',
'.doc': 'application/msword'
};
fs.exists(pathname, function (exist) {
if(!exist) {
// if the file is not found, return 404
res.statusCode = 404;
res.end(`File ${pathnam...
How to center icon and text in a android button with width set to “fill parent”
...android.material.button.MaterialButton
android:id="@+id/btnDownloadPdf"
android:layout_width="0dp"
android:layout_height="56dp"
android:layout_margin="16dp"
android:gravity="center"
android:textAllCaps="true"
app:backgroundTint="#fc0"
a...
创业 比“直男癌”更可怕的是“技术癌” - 资讯 - 清泛网 - 专注C/C++及内核技术
...上半年投资的玩美自由行，它以大数据技术和强大的分析算法为支撑，可以让用户在一分钟之内，通过简单的四步定制出性化的出境自由行，是一个极富竞争力的创业项目。更重要的是，玩美自由行项目最初是靠高技术壁垒破局...
How to copy files from 'assets' folder to sdcard?
...nnels to do the work.
(Note) If using any type of compressed file, APK, PDF, ... you may want to rename the file extension before inserting into asset and then rename once you copy it to SDcard)
AssetManager am = context.getAssets();
AssetFileDescriptor afd = null;
try {
afd = am.openFd( "My...
What are some resources for getting started in operating system development? [closed]
...ooklet with line numbers
http://pdos.csail.mit.edu/6.828/2012/xv6/xv6-rev7.pdf
XV6 book - explains the main ideas of os design
http://pdos.csail.mit.edu/6.828/2012/xv6/book-rev7.pdf
The material is compact: 92 pages source and 96 pages commentary.
I like it more than the Minix book! It's a true g...
Why should I use document based database instead of relational database?
...ore paper documents, e.g. by scanning office mail. The data is the scanned PDF and you have some meta data which always exists (scanned at, scanned by, type of document) and lots of possible metadata fields which exists sometime (customer number, supplier number, order number, keep on file until, OC...
How do you get assembler output from C/C++ source in gcc?
... Algorithms for programmers, page 3 (which is the overall 15th page of the PDF).
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