Examples implementation of Slow Changing Dimension 6 (1+2+3) in data warehouse design?

More Netra Pal Singh's questions See All

How to use Genetic Algorithm & M5 Method for time series forecasting?

Weka had an add on the topic but details of the algorithm are not available.

04 May 2017 8,593 5 View

How to use Genetic Algorithm & Greedy Method for time series forecasting?

Weka has an add on but literature is not available

04 May 2017 1,124 3 View

Which is best measures of machine learning model evaluation?

In fact I am keen to know among two measures, i.e., AUC or Accuracy in the context of direct marketing scenario.

04 May 2016 5,847 2 View

Which is the best algorithm of cluster analysis?

I have read literature from different sources as well solved examples. However, it was not possible for me to identify best algorithm for a given set of data. The clusters created with one...

01 February 2016 1,844 6 View

What is an appropiate sample size in generating a decision tree using C 5.0 or ID3 algorithms?

It is perceived that data mining algorithms are used for large sample sets. I am keen to know some references wherein some critical information is given about appropriate sample size for fitting...

31 December 2015 8,795 0 View

Which of the two (Overfitting and Underfitting) is more important in fitting models?

You may like to link your answer with fitting of logistic regression equation.

31 December 2015 8,989 0 View

How many times during the year fogging ultra-low-volume insecticide particles is needed to control dengue fever?

Fogging of ultra low volume insecticide particles is done to control dengue fever. How many times fogging should be done if let us assume spread start in July in terms of few cases and end in...

09 October 2015 5,272 0 View

What should be right size of sample in survey research?

We have a formula of sample size which is based on three values, i.e., z value, variance, and error. Formula look like n = [z2 * (variance)2 / E2 ]. You have large number of variables as part of...

04 May 2015 7,300 24 View

How much percentage of GDP must be invested in agriculture research by a country?

Food is most important component human life. Without food one can not live. We often see shortage of food in certain part of the world or may see in future with increasing population. To meet this...

11 December 2014 9,329 2 View

Is rapid change in mobile technologies good for world economy?

The large number of countries have yet to set 3G networks still in the same country vendor are looking for 4G markets. It forces some countries to unnecessarily invest before time in my opinion....

11 December 2014 3,494 9 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

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

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View