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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
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迷宫源代码
本算法采用C语言编写，在迷宫中设置任意位置为墙，然后使用回溯的方法将迷宫的所有路径输出；
- 2022-05-14 11:47:39下载
- 积分：1
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Prof_UIS
Prof_UIS2.3源代码，非常漂亮的Docking Windows编程(Prof_UIS2.3 source code, a very beautiful Docking Windows Programming)
- 2005-04-27 10:11:01下载
- 积分：1
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Structures-and-unions
Example of using structures in C++
- 2012-05-18 05:16:49下载
- 积分：1
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Pviterbi_encor
经过验证的维特比编译码MATLLAB程序，每行代码都有详细的备注
(Proven Viterbi than the codec MATLLAB program, each line of code to have detailed notes)
- 2012-08-16 06:34:29下载
- 积分：1
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113-13801-061
说明： dos138 oscilattor firmware
- 2019-03-03 00:57:35下载
- 积分：1
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FLASH
Flash+VC Flash+VC Flash+VC (Flash+ VC Flash+ VC Flash+ VC)
- 2009-06-02 14:32:43下载
- 积分：1
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m118kmh_1time
气动噪声声源定位的时域分析，风速118kmh(Time Domain Analysis of Aerodynamic Noise Source Positioning, Wind Speed 118kmh)
- 2018-02-28 19:45:41下载
- 积分：1
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UCOSAVR128V28
将本站的UCOSFORAVR128V276版本升级到了280版，修正原来的中断定义错误，并仿真调试已通过。(UCOSFORAVR128V276 the site will upgrade to version version of the 280, that the interruption of the original definition errors, and debugging simulation has passed.)
- 2006-10-11 15:39:05下载
- 积分：1
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CMC
本文件讲述了基于CMC芯片的智能仪表的采集器、控制器的源代码描述。(This file tells the story of the intelligent instrument based on CMC chip collector, controller source code description. )
- 2013-12-01 13:17:58下载
- 积分：1
