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University of Southern California

33 total contributions since 2011

Professional Interests: Signal Processing, Image and Speech Processing, Linear Algebra, Machine Learning

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Solved

Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

plus d'un an ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

plus d'un an ago

Question

How do I create an interactive connected graph in MATLAB GUI
I want to create a connected graph in Matlab GUI. All the nodes of the graph are buttons which changes its color when clicked. A...

plus de 4 ans ago | 1 answer | 0

1

Submitted

Machine_learning_PRTools.zip
A systematic way of using the functions of PR Tools has been created.

How can I rotate a set of points in a plane by a certain angle about an arbitrary point?
Best is to deal this task with Linear Algebra. Let the specified point(around which the rotation has be done) be w = (x1,y1)....

presque 6 ans ago | 2

Submitted

Minimum Phase filter
Minimum phase filter by shifting zeros inside unit circle.

Solved

Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

environ 6 ans ago

Solved

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

environ 6 ans ago

Solved

Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

environ 6 ans ago

Solved

Given a and b, return the sum a+b in c.

environ 6 ans ago

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

environ 6 ans ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

environ 6 ans ago

Submitted

Two point boundary condition
This file helps to find and plot the solution to a two point boundary problem.

Solved

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

plus de 6 ans ago

Solved

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

presque 7 ans ago

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

presque 7 ans ago

Solved

Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

presque 7 ans ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

presque 7 ans ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

presque 7 ans ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

presque 7 ans ago

Solved

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

environ 7 ans ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

environ 7 ans ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

environ 7 ans ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

environ 7 ans ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

environ 7 ans ago

what is the best size of input data for neural network?
What kind of network are you using. If you re using back propagation network, then 1. Back propogation gives good results onl...

environ 7 ans ago | 0

how to round the decimal point?
Thanks a lot.. It was so simple.

environ 7 ans ago | 0

Question

Feature classification
I am working on Face recognition and have generated the features using PCA and then LDA. While the features are given as input t...

plus de 7 ans ago | 0 answers | 0

0

Question

PCA LDA
Hello, I am doin a project on face detection+recognition. Face detection part is working properly. I hav done face recognition ...

plus de 7 ans ago | 1 answer | 0

1

Question

Eigen faces
I am working on face detection and recognition. My face detection algo using viola-jones is working perfectly. However face reco...

plus de 7 ans ago | 0 answers | 0