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Description Now and then you play the following game with your friend. Your friend writes down a sequence consisting of zeroes and ones. You choose a continuous subsequence (for example the subsequence from the third to the fifth digit inclusively) and ask Hi M, whether this subsequence contains even or odd number of ones. Your friend answers Your question and you can ask the him about another subsequence

Tags: ATI member parent Sea character may GRE manually APIHow does explain machine learning and Data Mining to non computer science people?Pararth Shah, ML enthusiast answered Dec, ShenzhenFeatured on VentureBeat • Upvoted by Melissa Dalis, CS Math Major at Duke and Alberto Bietti, PhD student in Machine learn Ing. Former ML engineer Mango ShoppingSuppose you go shopping for mangoes one day. The vendor have laid out a cart full of mangoes. You can handpick the mangoes, the vendor would

(foo), im = double (IM),% (256*256)/(4*4)% (256*256) divided into (4*4) image block n = 4;m = 4;block_n = N*ones (1,256/n) ; % Block_n = [4,4....4] 64 4block_m = M*ones (1,256/m); im_block = Mat2cell (im,block_n,block_m);%im_block = Reshape (im_bloc k,1,4096); X = ones (16,4096); for i =1:4096 tmp = Cell2mat (Im_block (i)); %x (:, i) = reshape (tmp,16,1);

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array is used for storage; and so on, we can obtain nine one-dimensional array elements and perform four arithmetic operations, which can be expressed in a 9-dimensional array of 9*9*9*9*9*9*9*9.However, in matlab, * can only be used to multiply two-dimensional arrays. Fortunately, we can use the bsxfun function to calculate arrays of different dimensions.The following example demonstrates the usage of bsxfun: Clear alla = ones (); % note that the on

Analysis: This is not an easy problem and the idea is not straightforward. Since the question requires the area of all ones region, first we can define the region (rectangle) in the matrix. any region in the matrix has several basic properties: 1 corner point, width, and length. Also which corner point it is decide the exact place of the region, here we consider the bottom-right corner point, because we usually scan the matrix from (0, 0) to right and

, 5, 5, 0}; printthreeunique (array);} public static void printthreeunique (INT [] array) {If (array = NULL | array. length 4. Question 4: In an array of the int type, all the other values appear once or twice. Reference: http://blog.csdn.net/dinosoft/article/details/6443354 [Analysis] for each bit, this bit is cleared once it appears three times. Analyze the following code: /*** Creation Time: 10:25:21, January 1, September 6, 2014 * Project name: test * @ author Cao yanfeng * @ since JDK 1

tricks and functionality). However, a more complex generator example might handle the input stream more like the one mentioned in the previous paragraph. Let's take a look at the previous state machine's version of the deletion code:Listing 1. statemachine_test.py From StateMachine import StateMachine def ones_counter (val): print ' ones state: ' while 1: if Val break elif Readers should look at the previous article if they

horse, the following will post the source code and a simple description, but if you want to use the data in the routine, you can download the entire routine. From numpy import * def loaddataset (): Datamat = []; Labelmat = [] fr = open (' testSet.txt ') for line in Fr.readlines (): Linearr = Line.strip (). Split () Datamat.append ([1.0, Float (linearr[0]), float (linearr[1)]) labelmat.append (int (linearr[2))) return Datamat,la Belmat def sigmoid (InX): Return 1.0/(1+exp (-inx)) def gra

Most interviewers prefer to ask questions. Let's talk about the choice of the MySQL storage engine. There are too many MySQL storage engines, and there are seven or eight well-known ones. The specific ones are not listed one by one. There are only two most commonly used ones, for example, MyISAM and InnoDb. the difference between MyISAM and InnoDB is described in

, function (){Return new Stream ();});});});// The head of the t stream is 10; its tail has a head which is 20 and a tail which// Has a head which is 30 and a tail which is the empty stream.T. print (); // prints 10, 20, 30 Is it okay? You can directly use Stream. make (10, 20, 30) to do this. However, please note that we can easily build our infinite stream in this way. Let's make an endless stream:Copy codeThe Code is as follows:Function ones (){Ret

(){Return new Stream ();});});});// The head of the t stream is 10; its tail has a head which is 20 and a tail which// Has a head which is 30 and a tail which is the empty stream.T. print (); // prints 10, 20, 30 Is it okay? You can directly use Stream. make (10, 20, 30) to do this. However, please note that we can easily build our infinite stream in this way. Let's make an endless stream:Copy codeThe Code is as follows: function ones (){Return new S

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and a tail which is the empty stream. t.print (); Prints 10, 20, 30 Nothing to do? This can be done directly with Stream.make (10, 20, 30). However, please note that this way we can easily build our infinite stream. Let's do a stream that's infinite:function ones () { return new Stream ( //The first element of the stream of ones is 1 ... 1,//And the rest of the elements

the number of columns in the matrix. Example 513 draw a spatial curve The parameter equation corresponding to this curve is T = 0: PI/50: 2 * PI; X = 8 * Cos (t ); Y = 4 * SQRT (2) * sin (t ); Z =-4 * SQRT (2) * sin (t ); Plot3 (X, Y, Z, 'P '); Title ('line in 3-D space '); Text (0, 0, 0, 'origin '); Xlabel ('x'); ylabel ('y'); zlabel ('Z'); grid; Ii. 3D Surfaces 1. Generate a coordinate matrix of a plane mesh When drawing a 3D surface map represented by Z = f (x, y), first select a rectangula

After about one afternoon, I thought it was easy to understand the "boundary + details", especially "(ones> 2)> ntz ", if it is written as "ones> (2 + ntz)", an error is reported, and the boundary part is self-tuned. The bitcount section is modified to use only a large constant and small numbers. 4 int bitcount (unsigned int N)5 {6 unsigned int TMP;7 TMP = N 0x33333333;8 n = N-TMP;9 N = (n> 2) 0x33333333;

After learning simple logistic regression, we will find that this function cannot be applied to large-scale data, because when the amount of data is too large, the amount of computing increases exponentially. Next we will discuss how to optimize logistic regression. Now we will write a simple optimization function: def stocGradAscent0(dataMatrix, classLabels): m,n = shape(dataMatrix) alpha = 0.01 weights = ones(n) #initialize to all

233. Number of Digit OneTotal accepted:20083Total submissions:79485 difficulty:hard Given an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to N.For example:Given n = 13,Return 6, because digit 1 occurred in the following numbers:1, 10, 11, 12, 13.Idea: Accumulate the total number of each digit is 1 o'clock.For a specific number of n, the total number of occurrences of 1 is ones. Right-to-left po

two years ago)CTRL + Shift + J reverse incremental search (the same as the previous one, but only from the back to the front)CTRL + Shift + F4 close all open editerCTRL + Shift + x change all selected text to lowercaseCTRL + Shift + y change all selected text to lowercaseCTRL + Shift + F format the current CodeCTRL + Shift + P locate the matched character (for example, {}) (when positioning from the front, the cursor must be inside the matched character, followed by the front, then reverse )T

0.58 0.22 1.42 -1 16 0.81 0.18 1.59 -1 17 0.67 0.21 1.21 -1 18 0.65 0.16 1.37 -1 Save the data as Svm.xls with the following code: CLC; Clear all; X0=xlsread (' Svm.xls ', ' b2:e19 '); For i=1:3%%% the input data of the training sample X (:, i) = (X0 (:, i)-mean (X0 (:, i)))/std (X0 (:, i)),%%% standard processing end [M,n]=size (X); E=ones