Which subspace solutions (Null Space, Column Space, Row Space, Left Null Space) could be a plane or a line in feature space and Why? When could their possible Orthogonal Compliments be a plane or line? Please explain.
What percentage could each selected training set be for a 5 fold cross validation especially in face recognition experiment?
16 April 2021 337 1 View
What clear proof does show we have to choose eigen vector(s) associated with highest eigen value(s) for PCA dimension reduction?
06 June 2020 4,162 2 View
Linear transformations can be represented as Matrix vector products and Matrix vector products can be expressed as linear transformations. So is a projection which can be represented as a matrix...
10 May 2020 1,186 0 View
In Computer Sci., to understand Theories is one thing, to implement the theory is another thing? Why are some theories somewhat difficult to implement? For example determinant, inverse and...
27 April 2020 8,190 0 View
How would one read the files with extension .bnt, .lm2, .lm3 of Bosphorus 3D facedatasets in matlab?
20 March 2020 5,981 2 View
Will a Minolta Vivid 910 3D Scanner and a Minolta Vivid 900 3D range scanner create the same 3D face data? If not so, what would be the different between the nature of data they produce? Can the...
19 March 2020 3,030 4 View
Which algorithms makes use of least squares in object Recognition? Is the least squares approximation use in calculating Principal Component Analysis (PCA) and Singular Value Decomposition (SVD)...
15 March 2020 3,713 2 View
Where to get a free standard 3D face dataset that is available for download for research purpose?
03 March 2020 5,562 3 View
Is it possible to have a matrix that have pivot columns in every row, in Reduced Row-Echelon Form and is linearly dependent?
02 February 2020 5,651 2 View
Is it good practice to be formulating eigen values that are fractions rather than whole numbers to form basis?
24 January 2020 1,170 1 View
Approximate concentrations are require in compared with the WHO permissible limts
11 August 2024 2,723 1 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...
11 August 2024 8,141 3 View
I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...
10 August 2024 4,005 2 View
How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?
09 August 2024 3,291 2 View
I've been performing RNA extraction on cotton petiole tissue for a few months now using the method described in the following paper, a derivative of the typical hot borate method...
08 August 2024 9,882 2 View
One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...
08 August 2024 6,690 1 View
I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...
07 August 2024 505 3 View
I am trying to recover liquid CO2 from a mixture of 0.6 CO2, 0.3 N2, and 0.1 O2. My aim is to recover about 99% liquid CO2 at the bottom of the column and make sure the amount of gaseous CO2...
06 August 2024 4,611 0 View
I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...
04 August 2024 1,200 2 View