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Improvement in Performance of Ngram Classifiers with Frequent Updates
Content Type: Abstract
Syndromic surveillance of emergency department(ED) visit data is often based on computerized classifiers which assign patient chief complaints (CC) tosyndromes. These classifiers may need to be updatedperiodically to account for changes… read more… We used a lower GI grouping of ICD9 codes created by the ESSENCE-CDC pro- ject. We then used an N-Gram method adapted …