Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 21

Anybody know what this type of visualisation is called?

I think this is a pretty cool way to visualise changes in values but I can’t find any name for this type of visualisation. I...

Asked on 10/02/2021

1 answer

MLP classifier Gridsearch CV parameters to tune?

I'm looking to tune the parameters for sklearn's MLP classifier but don't know which to tune/how many options to give them? Example is learning rate. should i give it[.0001,.001,.01,.1,.2,.3]?...

Asked on 10/02/2021

1 answer

PySpark: java.io.EOFException

System:1 name node, 4 cores, 16 GB RAM1 master node, 4 cores, 16 GB RAM6 data nodes, 4 cores, 16 GB RAM each6 worker nodes, 4 cores, 16 GB RAM...

Asked on 10/02/2021

2 answer

PCA for dimensionality reduction with simultaneous clustering

so, let's say I have a set of 3D points. Let's say these points lie more or less on a plane that is embedded in the 3d space, then I...

Asked on 10/02/2021

1 answer

How do i create a classifier on sensor data?

I am working on a indoor localization based on magnetometer. I have 9 separate time-series datasets of sensor readings taken from coordinates 00, 01, 02, 10, 11, and so on...

Asked on 10/02/2021 by harry r

1 answer

TensorFlow stopped working after installing opencv

I am working on projects that use TensorFlow and Keras and I did the hello-world MNIST project successfully and later I tried to run some other project and TF suddenly...

Asked on 10/01/2021

1 answer

Adaboost - Show that adjusting weights brings error of current iteration to 0.5

I'm trying to solve the following problem but I've gotten sort of stuck. So for adaboost, $err_t = frac{sum_{i=1}^{N}w_i Pi (h_t(x^{(i)}) neq t^{(i)})}{sum_{i=1}^{N}w_i}$ and $alpha_t = frac{1}{2}ln(frac{1-err_t}{err_t})$ Weights...

Asked on 10/01/2021 by Saad Hussain

2 answer

Influence of trend on (supposedly) correlated time series

TL;DR: What is the impact of a linear trend on the correlation between time series that are (most likely) not spuriously correlated?I'm currently trying to reconstruct/cross-validate an analysis delivered by...

Asked on 10/01/2021 by Viktor Katzy

1 answer

Plotting in Multiple Linear Regression in Python 3

So I'm working on linear regression. So far I've managed to plot in linear regression, but currently I'm on Multiple Linear Regression and I couldn't manage to plot it, I...

Asked on 10/01/2021 by hael

2 answer

sentiment analysis nltk python

I'd like to perform sentiment analysis on stock comment using scikit and nltk. I already have about 100 comments on different stocks like "this stock will rock" which I marked...

Asked on 10/01/2021 by nikitok56

1 answer

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