Non negative matrix factorization

More Tridib Dutta's questions See All

Can you help me with a natural language processing text tagging problem?

I have the following project where I need to tag news items with company names to which these news items are relevant to (company names are mentioned in the news items and in many cases, in the...

06 July 2014 7,933 17 View

Can anyone provide a survey article on algorithms in use for text tagging?

I am new to Natural Language Processing. I am wondering if someone can help me by indicating recent reviews/survey article(s) which deals with recent advancement in text tagging.

05 June 2014 4,312 4 View

How to sample a smaller data set from a very large data set ?

I have a very large dataset with dimension given by (203000 x 150), with some of the columns (attributes) have a very large number of missing values, denoted by NA. I need to sample a smaller...

08 September 2013 1,823 14 View

Regarding Prime numbers.

I happen to notice the following interesting property of some of the prime integers: For example, 13 and it's permutation, 31 are primes. 17 and it's permutation 71 are both primes. But not 19 ,...

03 April 2013 3,249 7 View

Can anybody direct me to a recent review of the algorithms in use for computing molecular surfaces ?

Can anybody direct me to a good recent review of the algorithms regarding computing molecular surfaces ? Thanks

31 December 2012 8,730 1 View

Is it always an integer ?

I am trying to figure out if the following expression: (n^2 - n)! / ( n! ((n-1)!)^n ) is an integer for all positive integer n. I tried the induction, but the induction case is running into...

31 December 2012 412 17 View

Is the product of k consecutive positive integers divisible by k! ?

I have checked several cases numerically and it works. I don't have a concrete proof. Does anyone have any thought on this to share ?

31 December 2012 3,000 80 View

Is there an R implementation of the HITON algorithm?

HITON is an algorithm for markov blanket discovery of a target variable. The algorithm first appear in this paper: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1480117/ I am looking for an R...

07 August 2012 3,699 2 View

Does anyone know if a causal relationship among methylation data has been worked upon already ? Does it make sense?

My expertise is in mathematics. I am not an expert in computational biology. So I may be wrong entirely.

03 April 2012 4,838 2 View

What is the difference between mathematical R^4 space and physical 4D unit space?

We assume that the difference is huge and that it is not possible to compare the two spaces. The R^4 mathematical space considers time as an external controller and the space itself is immobile in...

10 August 2024 6,678 14 View

All math can be explained by iterator of code?

all math can be traversed by code? all math can be translate to code?

26 July 2024 9,530 0 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

How can I extract the mathematical equation from existing Neural Network Model?

There exists a neural network model designed to predict a specific output, detailed in a published article. The model comprises 14 inputs, each normalized with minimum and maximum parameters...

14 July 2024 2,714 3 View

Does anyone know, any conference related to "mathematical data compression" topic?

Please suggest me, I want to present my research work.

13 July 2024 1,461 1 View

How i can calculate mathematically COD concentration if i add 1gr from glucose to 1 L distilled water ?

how i can calculate mathematically COD concentration if i add 1gr from glucose to 1 L distilled water

08 July 2024 9,104 2 View

Interested in Postdoc position in Mathematics at IMI-BAS BG?

Computational topology of solitons The well-established research area of algebraic topology currently goes interdisciplinary with computer science in many directions. The Topological Data Analysis...

08 July 2024 2,816 0 View

Reality Bounded VS Mathematical Bounded toward interpreting mathematic solution?

btw have u ever know about math bounded and reality bounded? for example it happen when student interpret the solution of problem toward mathematics. if you have experience or research about that,...

03 July 2024 6,631 2 View

My new vision on “time duality” in heat and wave equations. How can we catch their solutions and qualitative properties?

Greetings mathematicians and physicists, As we know, the idea of assuming a higher space dimension than the natural 3 dimension is effective in solving many physical and mathematical...

29 June 2024 9,220 6 View

A new interesting geometry problem. Can you find the measure of angle?

In the isosceles triangle ABC (AC=AB), the angle at the vertex is 20°. Point D is chosen on the side AB such that AD=BC. Find the measure of angle CDB.

23 June 2024 7,541 8 View

Walner Mendonça Dos Santos

Hi! Exist a book that talks about this theme. Follows the reference of this book:

>> Nonnegative matrix and tensor factorizations : applications to exploratory multiway data analysis

and blind source separation / Andrzej Cichocki . . . [et al.]. 2009 John Wiley & Sons, Ltd

Maybe you may find that you want in this book.

Tridib Dutta

Thanks Walner. I will check it out.

Qassem Al-Hassan

The book entitled "Matrix Computations" by G. Golub and Van Loan my containn answers to your questions.

Thanks Qassem, I will look into it. It's a famous book in Matrix theory. May contain some pointers at least.