代入法的啟發(fā)示搜索 我的代碼實(shí)現(xiàn)是：按照自然語言各字母出現(xiàn)頻率的大小從高到低（已經(jīng)有人作國(guó)統(tǒng)計(jì)分析了）先生成一張字母出現(xiàn)頻率統(tǒng)計(jì)表（A）--------(e),(t,a,o,i,n,s,h,r),(d,l),(c,u,m,w,f,g,y,p,b),(v,k,j,x,q,z) ，再對(duì)密文字母計(jì)算頻率，并按頻率從高到低生成一張輸入密文字母的統(tǒng)計(jì)表（B），通過兩張表的對(duì)應(yīng)關(guān)系，不斷用A中的字母去替換B中的字母，搜索不成功時(shí)就回退，在這里回朔是一個(gè)關(guān)鍵。
上傳時(shí)間： 2015-10-24
上傳用戶：wanqunsheng
給定n個(gè)整數(shù)a , a , ,an 1 2 組成的序列。序列中元素i a 的符號(hào)定義為： ï î ï í ì - < = > = 1 0 0 0 1 0 sgn( ) i i i i a a a a 符號(hào)平衡問題要求給定序列的最長(zhǎng)符號(hào)平衡段的長(zhǎng)度L，即： þ ý ü î í ì = + - = å = £ £ £ max 1| sgn( ) 0 1 j k i i j n k L j i a 。 例如，當(dāng)n=10，相應(yīng)序列為：1，1，-1，-2，0，1，3，-1，2，-1 時(shí)，L=9。
上傳時(shí)間： 2015-10-28
上傳用戶：xaijhqx
五對(duì)角占優(yōu)線性方程組求解的MATLAB 程序MYLU。 輸入?yún)?shù)A為系數(shù)矩陣，F(xiàn)為右端向量。輸出參數(shù)L，U為A的LU 分解A=LU，X為解向量。
標(biāo)簽： MATLAB MYLU 對(duì)角 參數(shù)
上傳時(shí)間： 2013-12-04
上傳用戶：c12228
《多傳感器數(shù)據(jù)融合手冊(cè)》 《Handbook of Multisensor Data Fusion》 作者: David L. Hall 定價(jià): USD 199.95 出版社: CRC 出版年: 2001-06-20 簡(jiǎn)介 · · · · · · Multisensor data fusion is an emerging technology with important applications in both the military and civilian sectors, such as target recognition, robotics, medical diagnostics, and "smart" buildings. It draws on techniques from wide-ranging disciplines, including artificial intelligence, pattern recognition, and statistical estimation. This handbook is an up-to-date, comprehensive resource for data fusion system designers and researchers. Top experts in the field lead readers from a basic introduction and survey of data fusion technology to advanced mathematics and theory and to some very practical advice for systems implementers.
標(biāo)簽： L. Multisensor Handbook 199.95
上傳時(shí)間： 2014-02-06
上傳用戶：二驅(qū)蚊器
本題的算法中涉及的三個(gè)函數(shù)： double bbp(int n,int k,int l) 其中n為十六進(jìn)制位第n位，k取值范圍為0到n+7，用來計(jì)算16nS1，16nS2，16nS3，16nS4小數(shù)部分的每一項(xiàng)。返回每一項(xiàng)的小數(shù)部分。 void pi(int m,int n,int p[]) 計(jì)算從n位開始的連續(xù)m位的十六進(jìn)制數(shù)字。其中p為存儲(chǔ)十六進(jìn)制數(shù)字的數(shù)組。 void div(int p[]) void add(int a[],int b[]) 這兩個(gè)函數(shù)都是為最后把十六進(jìn)制數(shù)字轉(zhuǎn)換為十進(jìn)制數(shù)字服務(wù)的。 最后把1000個(gè)數(shù)字分別存儲(chǔ)在整型數(shù)組r[]中，輸出就是按順序輸出該數(shù)組。
上傳時(shí)間： 2014-01-05
上傳用戶：xcy122677
UC Library Extensions UnderC comes with a pocket implementation of the standard C++ libraries, which is a reasonably faithful subset. This documentation describes those UnderC functions and classes which are not part of the C++ standard. UC Library Builtin functions: Most of these are standard C functions, but there are a few unique to the UnderC system which give you runtime access to the compiler. You may evaluate expressions, execute commands, compile code, etc. * Expands the text in expr using the UnderC preprocessor, putting the result into buff. void uc_macro_subst(const char* expr, char* buff, int buffsize) * Executes a UC #-command, like #l or #help. uc_cmd() expects the name of the command, _without_ the hash, e.g. uc_cmd("l fred.cpp") or uc_cmd("help"). void uc_cmd(const char* cmd) * Evaluates any C++ expression or statement will return non-zero if unsuccessful.
標(biāo)簽： implementation Extensions libraries standard
上傳時(shí)間： 2013-12-14
上傳用戶：leehom61
Hidden_Markov_model_for_automatic_speech_recognition This code implements in C++ a basic left-right hidden Markov model and corresponding Baum-Welch (ML) training algorithm. It is meant as an example of the HMM algorithms described by L.Rabiner (1) and others. Serious students are directed to the sources listed below for a theoretical description of the algorithm. KF Lee (2) offers an especially good tutorial of how to build a speech recognition system using hidden Markov models.
標(biāo)簽： Hidden_Markov_model_for_automatic speech_recognition implements left-right
上傳時(shí)間： 2016-01-23
上傳用戶：569342831
兩種解決方案 Richard just finished building his new house. Now the only thing the house misses is a cute little wooden fence. He had no idea how to make a wooden fence, so he decided to order one. Somehow he got his hands on the ACME Fence Catalogue 2002, the ultimate resource on cute little wooden fences. After reading its preface he already knew, what makes a little wooden fence cute. A wooden fence consists of N wooden planks, placed vertically in a row next to each other. A fence looks cute if and only if the following conditions are met: ?The planks have different lengths, namely 1, 2, . . . , N plank length units. ?Each plank with two neighbors is either larger than each of its neighbors or smaller than each of them. (Note that this makes the top of the fence alternately rise and fall.)
標(biāo)簽： house the finished building
上傳時(shí)間： 2014-01-26
上傳用戶：541657925
為研究棉田農(nóng)藥噴灑機(jī)器人導(dǎo)航路徑識(shí)別方法, 以 自然環(huán)境下采集的棉田圖像為研究背景, 在L ab 色彩空間 進(jìn)行處理, 把棉株從土壤背景中識(shí)別出來。通過最大方差閾 值分割法將圖像轉(zhuǎn)化為二值圖像, 并經(jīng)過中值濾波去除噪 聲。二值圖像垂直方向投影做直方圖, 利用波谷位置確定左 右壟分界線。根據(jù)左右壟棉株位置平均得到導(dǎo)航離散點(diǎn), 通 過Hough 變換得到導(dǎo)航路徑, 進(jìn)而得到導(dǎo)航控制參數(shù)。利用 坐標(biāo)系轉(zhuǎn)換關(guān)系將圖像坐標(biāo)系中的導(dǎo)航信息轉(zhuǎn)換到世界坐 標(biāo)系, 從而控制機(jī)器人行走。基于A S2R 機(jī)器人對(duì)連續(xù)動(dòng)態(tài) 圖像進(jìn)行分析, 該方法獲得的導(dǎo)航參數(shù)是完全可行的。
上傳時(shí)間： 2016-07-18
上傳用戶：sammi
利用UP-NETARM3000 嵌入式實(shí)驗(yàn)平臺(tái)上的A/D轉(zhuǎn)換器、直流電機(jī)、LED和LCD模擬車輛的里程表盤系統(tǒng)。A/D轉(zhuǎn)換器模擬汽車的油門和變速系統(tǒng)；直流電機(jī)模擬汽車發(fā)動(dòng)機(jī)；LED顯示車輛總里程數(shù)；LCD模擬當(dāng)前車輛的速度
標(biāo)簽： UP-NETARM LED 3000 模擬
上傳時(shí)間： 2014-02-11
上傳用戶：qwe1234
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