Heinze Daniel T, Morsch Mark L, Potter Brian C, Sheffer Ronald E
A-Life Medical, Inc., San Diego, CA, USA.
J Am Med Inform Assoc. 2008 Jan-Feb;15(1):40-3. doi: 10.1197/jamia.M2438. Epub 2007 Oct 18.
We describe the architecture of LifeCode (A-Life Medical, Inc.), a natural language processing system for free-text clinical information extraction, our methodology in applying LifeCode to the i2b2 smoking challenge, and statistical measures for performance evaluation. Due to the limited test size and the coefficient of variation in the test standard, it is difficult to draw conclusions regarding the relative efficacy of approaches that were applied to this challenge.
我们描述了LifeCode(A-Life Medical公司)的架构,这是一个用于从自由文本临床信息中提取内容的自然语言处理系统,介绍了我们将LifeCode应用于i2b2吸烟挑战的方法,以及用于性能评估的统计措施。由于测试规模有限以及测试标准中的变异系数,很难就应用于该挑战的方法的相对有效性得出结论。