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I recently used some sorting algorithms to sort a few simple sorting algorithms, such as Bubble sorting, selection sorting, insertion sorting, parity sorting, and quick sorting, the code is implemented using C # code and passed the test. We hope to provide you with reference. 1. Bubble Sorting Bubble Sorting is a Sort Algorithm of computers. Its time complexity is O (n ^ 2). Although it is less complex than heap sorting and fast sorting, It is O (nlogn, the base number is 2), but there are two a
if not, the default is the natural number. The second type is the query class, which includes: Head () returns the first item in a stream Item (index) returns the item at the index position Tail () returns the remaining elements in the first position Empty () is null The third type of traversal operation includes: Map () is analogous to a map in an array, which is actually a mapping process Walk () is also traversed, but does not have a direct effect
sample data, each of which is categorized, and 1 insults 0 as normal speech.The next function is to create a list of non-repeating words that appear in all documents.The third function sets the vector, if the word appears in Vector 1, does not appear as 0.def trainNB0 (trainmatrix,traincategory): numtraindocs = Len (trainmatrix) numwords = Len (trainmatrix[0]) pabusive = SUM (traincategory)/float (numtraindocs) p0num = ones (numwords); p1
Previously, a svm-based Ordinal regression model, a special multi-classification model, was developed to show the effect of the model classification in a visual way, with different color representations for each category area. However, also read a lot of code, but the basic is to show two classification, when expanded into a multi-classification will appear problems, so my thesis finally had to draw the boundary of the figure. Today in the study of random forest, found the following demo of the
We consider a $n\times m$ matrix data, in order to read some of the data in the matrix, such as to find the elements of a $a\times b$ sub-matrix, and usually we can think of the $o (AB) $ traversal that sub-matrix, the various elements of its summation. However, when the $a$ or $b$ is very large, such calculations appear too slow, if the maximum element of the sub-matrix is required and (such as Ural 1146), it is simply too slow to endure. so I thought, can I read the data at the same time, I
0.7087 0.7087 0.6990 0.6796 0.6214 0.6311 0.7573 0.6602 0.7379 0.6796 0.6796 0.7282;] MATLAB Program:Clearload boxplotdatax01=x4058_300;x02=x4058_400;x1 = [x01 (1,:); x02 (1,:)] '; x2 = [x01 (2,:); x02 (2,:)] '; x3 = [X01 (3,:); X02 (3,:)] '; x4 = [x01 (4,:); x02 (4,:)] '; x5 = [x01 (5,:); x02 (5,:)] '; x6 = [x01 (6,:); x02 (6,:)] '; f=figure (1) x = [x1;x2;x3;x4; X5;X6]; x = x (:); g1 = [Ones (Size (x1)); 2*
Constructing Roads in jgshining ' s kingdomTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 23467 Accepted Submission (s): 6710Problem Descriptionjgshining ' s kingdom consists of 2n (n is no further than 500,000) small cities which is located in both par Allel lines.Half of these cities is rich in resource (we call them rich cities) while the others is short for resource (we call them Poor cities). Each of the poor city are short of exactly one
Given an array of integers, every element appears three times except for one. Find the single one.Note:Your algorithm should has a linear runtime complexity. Could you implement it without using extra memory?Thinking of solving problemsConsider all binary representations, if we take the sum of all the numbers in the ith position and 3, then there will only be two results 0 or 1 (according to test instructions, 3 0 or 3 1 Add the remainder is 0). So the result of the remainder is that "single num
Constructing Roads in jgshining ' s kingdomTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 20187 Accepted Submission (s): 5697Problem Descriptionjgshining ' s kingdom consists of 2n (n is no further than 500,000) small cities which is located in both par Allel lines.Half of these cities is rich in resource (we call them rich cities) while the others is short for resource (we call them Poor cities). Each of the poor city are short of exactly one
Constructing Roads in jgshining ' s kingdomTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 21002 Accepted Submission (s): 5935Problem Descriptionjgshining ' s kingdom consists of 2n (n is no further than 500,000) small cities which is located in both par Allel lines.Half of these cities is rich in resource (we call them rich cities) while the others is short for resource (we call them Poor cities). Each of the poor city are short of exactly one
Constructing Roads in jgshining ' s kingdomTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 17732 Accepted Submission (s): 5023Problem Descriptionjgshining ' s kingdom consists of 2n (n is no further than 500,000) small cities which is located in both par Allel lines.Half of these cities is rich in resource (we call them rich cities) while the others is short for resource (we call them Poor cities). Each of the poor city are short of exactly on
I recently used some sorting algorithms to sort a few simple sorting algorithms, such as Bubble sorting, selection sorting, insertion sorting, parity sorting, and quick sorting, the code is implemented using C # code and passed the test. We hope to provide you with reference. 1. Bubble Sorting Bubble Sorting is a Sort Algorithm of computers. Its time complexity is O (n ^ 2). Although it is less complex than heap sorting and fast sorting, It is O (nlogn, the base number is 2), but there are two a
I will not talk about the benefits of fruit any more. Please refer to the tips about fruit here. Here are the tips for fruit traders to pick fruit and learn from others. Mango: Mango varieties: Egg Mang (called by Fujian), with a strong fragrance and an elliptical shape. The flesh is orange, which is as big as a small egg and super sweet. It is suitable for juicing and extremely thick juice, it can be used with a touch of honey water. It is slightly worse than an egg, and the shape is li
not in my Vocabulary!" % word return returnVec The first function is loadDataSet () to create sample data. Each sample data is classified. 1 indicates that the negative comments 0 indicates normal comments. The next function is to create a list of non-repeated words in all documents. The third function is set to convert to a vector. If the word appears, the vector is 1 and the value is not 0. def trainNB0(trainMatrix,trainCategory): numTrainDocs = len(trainMatrix) numWords = len(trainM
I have a special interest in Chinese poetry. chinese poetry is so interesting and beautiful that it touched me deeply. every time when I am reading a Chinese poetry, every drop of my blood becomes effervescent. it is still Chinese, but it is also a language that is much beautiful than any ages we human beings are using. For I'm loving Chinese poetry so deeply that I thought other poetry that written in other versions ages must be poorer in the effect of touching its reader. considered myself
, but it is useless if used directly,For example, for the very simple training set below, a demo-stump cannot be completely correctly classified. Try to make a division on the X or Y axis. Although the classification cannot be completely correct, we need to find the demo-stump with the smallest error.The method is very simple. In the range of X and Y, the comparison error is traversed with a certain step. First, implement stump classification,Datamatrix. One row represents a training sample
run(int n, int* A) { Int ones = 0; // the flag that appears once. Int twos = 0; // The second flag is displayed. for(int i = 0; i Ones = (ones ^ A [I]) ~ Twos; // remove the second appearance. Add the first appearance and the third appearance remain unchanged. Twos = (twos ^ A [I]) ~ Ones; // the valu
Description Binary viruses InvestigationCommittee detected, that certain sequences of zeroes and ones are codesOf viruses. The committee isolated a set of all the virus codes.Sequence of zeroes and ones is called safe, if any of its segments (I. e.Sequence of consecutive elements) is not a virus code. The committee isAiming at finding, whether an infinite, safe sequence of zeroes andOnes exists.ExampleFor a
The white rabbit walked in the forest and came up with a big gray wolf. He gave the White Rabbit two ears and said, "I want you not to wear a hat ". The white rabbit was wronged. The next day, she walked out of the house wearing a hat and met the big gray wolf. He went up and gave the White Rabbit two big bits and said, "I want you to wear a hat ." The rabbit is depressed. After thinking for a long time, I finally decided to complain to the king of the forest. After explaining the situation,
) [1] # calculation error rate [1] 0.06 we find that the error rate is 6%################################# #MATLAB ####################################% Main functionClear all;Close all;C = 10;Kertype = ' linear ';% Training Samplesn = 50;RANDN (' state ', 6);x1 = RANDN (2,n); %2 row n column Matrixy1 = ones (1,n); %1*n a 1x2 = 5+randn (2,n); %2*n Matrixy2 =-ones (1,n); %1*n A-1FigurePlot (x1 (1,:), X1 (2,:
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