bigdatamath

I have written a cpu version of such calculate problem, but cpu version is still slow. ``` from numba import jit import numpy as np @jit(nopython=True) def resid_lstsq(x,y): ret =...

not helping for np.convolve

13

I want to find the most efficient way to calculate the moving average. Three approach presented: ``` def sma1(x,d): n = np.ones(d) weights = n/d ret = np.convolve(weights,x)[d-1:-d+1] return ret...

Is there any method to calculate batch linear regression in GPU efficiently???

2

I have written a cpu version of massive regression ``` from numba import jit import numpy as np @jit(nopython=True) def resid_lstsq(x,y): ret = np.linalg.lstsq(x,y) coef = ret[0] yHat = np.dot(x,coef)...

np.nansum is not slow than bn.nansum when use float32

1

``` import bottleneck as bn import numpy as np m1 = np.random.randn(300,3000) m1_32 = m1.astype(np.float32) %timeit np.nansum(m1,axis=1) %timeit bn.nansum(m1,axis=1) %timeit np.nansum(m1_32,axis=1) %timeit bn.nansum(m1_32,axis=1) ``` when use float64 then bottleneck is...

The basic anaconda install python3.6.5 for the system , And I use the jupyterLab 0.32.1 to get remote python kernel under ubuntu system. But when I use the code :...

restart again and again

1

when I bash start.bash in linux then I get the erros : DCR: Failed to get nonce1 at handshaking GPU 0 failed Setting DAG epoch #280 for GPU0 GPU 0,...

clusterID of the original samples

3

SOM clustering is a good customer segment method, and your somoclu make the method strong enough to deal with big data. Thank you so much. But when I have done...

OMP: Error #15: Initializing libomp.dylib, but found libiomp5.dylib already initialized multiple copies of the OpenMP runtime have been linked into the program

4

when I use somoclu on ubuntu, there is no problem and perform perfectly with 100% cpu usage, but when I do the same experiment on Macbookpro with spyder IDE, it...

can FFX learn the relationship within time series?

3

Thank you for your great work which offers new approach for symbolic regression. By your example in the slice, FFX can output the function of linear or nonlinear expression. But...