Data Science

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Poisson Model (w/ multiple levels X)

Question Is Poisson model the best method for predicting counts among multiple levels within nominal variable? Details Imagine data of 7000 observations, where output= Obs.Count {numeric,0,1,2..8} ...
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Data normalization of count data for neural networks

I have a sparse matrix of count data that I'm using as input to a neural network. I know, usually, the input data should be normalized (e.g. via min-max scaling, $z$-score standardization, etc.). But ...
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Is zero-inflated negative binomial regression appropriate for this data? Am I interpreting it correctly?

I am evaluating whether governance predictor variables are associated with the prevalence of groundwater fecal contamination in a developing country context, as measured by TTC (Thermotolerant ...
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28 views

Confidence Intervals for Multi-Categorical Votes

I have an ngram-based language model that produces a long tag list for a given sentence. For example, the just-previous sentence, broken into bigrams, and run through the model might produce something ...
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1answer
1k views

How to merge columns, value count them and then plot the results?

How do I get from a dataframe with multiple columns that have similar values and need to be merged: ...
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191 views

How to better represent three sets of categorical data?

Given three set of data with categorical integer x-axis with the same range (0-10): ...