arXivDaily arXiv每日学术速递 周一至周五更新
今晚才能更新了~~大家休息下再来吧
arXiv 1608.02071cs.LGcs.CL
收藏

Transferring Knowledge from Text to Predict Disease Onset

Massachusetts Institute of Technology(麻省理工学院);National Cheng Kung University(国立成功大学)

Yun Liu, Kun-Ta Chuang, Fu-Wen Liang, Huey-Jen Su, Collin M. Stultz, John V. Guttag

英文摘要:

In many domains such as medicine, training data is in short supply. In such cases, external knowledge is often helpful in building predictive models. We propose a novel method to incorporate publicly available domain expertise to build accurate models. Specifically, we use word2vec models trained on a domain-specific corpus to estimate the relevance of each feature's text description to the prediction problem. We use these relevance estimates to rescale the features, causing more important features to experience weaker regularization. We apply our method to predict the onset of five chronic diseases in the next five years in two genders and two age groups. Our rescaling approach improves the accuracy of the model, particularly when there are few positive examples. Furthermore, our method selects 60% fewer features, easing interpretation by physicians. Our method is applicable to other domains where feature and outcome descriptions are available.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑