What is the effect of the temperature on pi-pi interaction?

Dear all, I have a quarry regarding the temperature effect on the pi-pi interaction. Thank you

04 May 2018 4,109 1 View

What is the effect of the pi-pi interaction on the free energy of solvation?

Dear all, Can anyone refer me the literature about the effect of the pi pi interaction on the free energy of solvation. Thank you

04 May 2018 8,110 0 View

Anyone working on Hankel Transform or convergence analysis please help its urgent ?

10 November 2016 466 2 View

Difference between time series algorithm,association algorithm sequence clustering algorithm in data mining?

Atime-series database stores sequences of values or events obtained over repeated measurements of time (e.g., hourly, daily, weekly). Examples include data collected from the stock exchange,...

10 November 2016 9,614 3 View

How we can calculate order of convergence of a function?

how we can calculate order of convergence of hankel transform?

10 November 2016 9,028 0 View

What are the advantages for the algorithm based on compactly supported orthonormal wavelet bases?

What are the advantages for the algorithm based on compactly supported orthonormal wavelet bases

10 November 2016 1,286 1 View

What are apolar molecules?

What is an apolar molecule? There is a special category in MARTINI coarse grained force field.

04 May 2014 3,680 0 View

Can anyone help with 1d NMR data processing in topspin?

I want to ask one question related to data processing in Topspin. I done 10 1-d diffusion experiments. Now I have to find the area under one peak(in all spectra) and then I have to plot it. After...

04 May 2014 1,691 4 View

Can anyone help with diffusion tensor by gromacs?

I have to study diffusion by gromacs. I want to calculate full tensor of diffusion coefficients. I am using "g_msd -ten". But it is giving me only one value. I want to ask that my command is...

02 March 2014 4,687 4 View

What is bead definition in VMD?

I am using coarse grained builder in VMD software. In residue based CG mapping, there is an option for bead definition. I am confused as to how to proceed and appreciate any suggestions. Thank you.

11 December 2013 7,584 1 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

In frequency domain alpha band(8-16hz), beta band(16-32hz), gamma band(32-64hz), sub-band(64-128hz) are same as LL,LH,HL,HH in wavelet decomposition?

I am working on single trial motor imagery data i.e. EEG data. I am following a paper which has a dataset from BCI challenge IV (dataset 2b). After removing noise and extracting all the data from...

23 February 2021 5,503 1 View

What is/are the best ML classifier(s) for Sentinel2 images?

Hi I am trying to segment a sentinel2 image. At this stage, I want to run a binary classifier that assigns each pixel to either farm or non-farm pixel. For this purpose, I have 4 10m bands...

15 February 2021 3,596 9 View

2D wavelet transform?

Dear all I have a 2-dimensional mode shape of one concrete beam and I put the data of mode shape in a matrix (69*3) which the first column in the matrix is x coordination of my beam and the second...

10 February 2021 3,301 3 View

How to choose the Hidden Layers Number and RBM Size in a DBN network?

Hello, When using a Deep Belief network (DBN) for images classification, how could we choose the number of hidden layers (number of Restricted Boltzmann Machines) and nodes (RBM size) in a hidden...

09 February 2021 4,618 5 View

Is there any similarity index between two time series?

Hi We have two time series dataset. For example mean daily temperature from two stations. Each of them have 30 data for a month. T1={ t1 , t2 ,... , t30 } T2={ t1 , t2 ,... , t30 } Now we want to...

06 February 2021 6,434 7 View

Matrix based scientific data analysis: extrapolating to matrices of sets?

Data sets, when structured, can be put in vector form (v(1)...v(n)), adding time dependency it's v(i, t) for i=1...n and t=1...T. Then we have a matrix of terms v(i, j)... Matrices are important,...

30 January 2021 9,295 6 View

When is the right time to stop training a classification algorithm?

In this example giving 400 samples looks like there is an accuracy of 91.5% while training beyond that point, accuracy is getting decreased. Are 400 samples enough to keep for this example? If...

27 January 2021 5,657 3 View

How can I make unsupervised clustering of trees species using algorithms like HAC, Kmeans... in R?

I am working on the development of multi-species volume allometric equation from diameter (DBH). I would like to form groups of species with the largest possible volume-diameter correlations by...

19 January 2021 5,752 5 View

In which case meta-heuristics algorithms cannot minimize the network error?

Hello, I am working on hybrid neural network. I have combined ANN with two different evolutionnary algorithms to build a prediction model of 6 inputs and one output with one hidden layer of 7...

18 January 2021 7,144 3 View