When Hanna Wallach first started testing machine learning models, the tasks were well-defined and easy to evaluate. Did the model correctly identify the cats in an image? Did it accurately predict the ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...

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Use the Sharpe ratio to evaluate an asset's risk vs. return Yarilet Perez is an experienced multimedia journalist and fact-checker with a Master of Science in Journalism. She has worked in multiple ...

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