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How do you deal emotionally with macabre data sources?

I've been working on the Analytics X Prize, which deals with predicting homicide rates. I find that I naturally look forward to new datapoints that to validate my model. Unfortunat …
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How to determine useful signals for prediction models?

With regards to this blog post. I have collected a number of datasets for different contributing variables to homicide incidents. I would like to know which of these variables is s …