A Combined Approach to Emotion Detection in Suicide Notes:

Biomedical Informatics Insights

AlexanderPak¹ 

关键词: emotion detection;    machine-learning;    SVM classifier;    transducers;   

DOI  :  10.4137/BII.S8969

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

In this paper, we present the system we have developed for participating in the second task of the i2b2/VA 2011 challenge dedicated to emotion detection in clinical records. On the official evaluation, we ranked 6th out of 26 participants. Our best configuration, based upon a combination of both a machine-learning based approach and manually-defined transducers, obtained a 0.5383 global F-measure, while the distribution of the other 26 participants’ results is characterized by mean = 0.4875, stdev = 0.0742, min = 0.2967, max = 0.6139, and median = 0.5027. Combination of machine learning and transducer is achieved by computing the union of results from both approaches, each using a hierarchy of sentiment specific classifiers.

【 授权许可】

CC BY