Wei, Plenge, Churchill, Kohane, Gainer, Murphy, Karlson, Tianxi, Szolovits, Churchill
Descriptive statistics of NLP corpus
30K (RA or CCP positive) -> Random 650 for chart review: 128 confirmed to have RA, 58 possible. This is gold standard review. So this means that there are radiologists (for example) coding RA where there is no RA, or rheumatologists coding for "rule out RA:
Tianxi reviewed feature selection via adaptive LASSO. Currently, the lower bound on the 95% confidence interval on the Positive Predictive Value seems to be high (stand by... we had an internal argument how the PPV was calculated)?
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