-
TFIDF-master
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.
- 2014-02-23 09:01:44下载
- 积分：1
-
实验板球系统
说明： 控制平板的倾斜，使直径不大于 2.5cm 的小球能够按照
指定的要求在平板上完成各种动作，给参加电赛的朋友一点参考(learn from friends who are participating in electrical competitions)
- 2020-06-24 01:00:02下载
- 积分：1
-
uCOS-II-BI
说明： 在stm32 平台上成功移植了UCOSII(move ucosii to stm32 plate successfull.)
- 2020-06-15 23:40:01下载
- 积分：1
-
GLUT OPENGL坐标系
可以画一个OPENGL的坐标系, 绘制坐标轴颜色分别为RGB
参数 1:CoordinateSize 为坐标大小
参数 2:X 为坐标的 X 点
参数 3:Y 为坐标的 Y 点
参数 4:Z 为坐标的 Z 点
- 2022-07-11 18:19:02下载
- 积分：1
-
输入输出通信程序232
IO 口模拟232通讯程序-IO communication procedures simulated 232
- 2022-07-20 06:21:29下载
- 积分：1
-
chengxuyuan
一本程序员羊皮卷，希望对大家有帮助，程序员走出自己的路(A programmer volume in sheep' s clothing, in the hope we have to help programmers go its own way)
- 2010-01-29 13:19:49下载
- 积分：1
-
左边转换
最精确的坐标转换办法 ,空间大地坐标系向空间直角坐标系的转换，空间直角坐标系向空间大地坐标系的转换
- 2023-05-06 18:30:02下载
- 积分：1
-
JumboECMS10x86
企业建站源码包含一般网站需要的功能方便快捷.企业建站源码包含一般网站需要的功能方便快捷.(Build your convenient source website contains general functionality required. Build your website source code contains functions generally require quick and easy)
- 2013-11-26 13:31:05下载
- 积分：1
-
FPC盲抓贴片机源代码
说明： 基于c#运动控制及图像处理项目源码，有兴趣可以看看(Based on C# motion control and image processing project source code)
- 2019-12-22 20:09:37下载
- 积分：1
-
Vs2010-camera-driver
在项目文件中可实现对摄像头的控制并拍照，进而可以做一些视频监控等项目的应用！(In the project file can realize the control of the camera and take photos, then can do some of the applications of video surveillance and so on!)
- 2020-10-10 11:17:34下载
- 积分：1
