Normalization of relative and incomplete temporal expressions in clinical narratives

Conclusions We formulate the RI-TIMEX normalization problem as a pair of multi-label classification problems. Considering only RI-TIMEX extraction and normalization, the system achieves statistically significant improvement over the RI-TIMEX results of the best systems in the 2012 i2b2 challenge.

Source: Journal of the American Medical Informatics Association - April 12, 2015 Category: Information Technology Authors: Sun, W., Rumshisky, A., Uzuner, O. Tags: Research and Applications Source Type: research