TY  - JOUR
PY  - 2012//
TI  - Rule-based and lightly supervised methods to predict emotions in suicide notes
JO  - Biomedical informatics insights
A1  - Pedersen, Ted
SP  - 185
EP  - 193
VL  - 5
IS  - Suppl 1
N2  - This paper describes the Duluth systems that participated in the Sentiment Analysis track of the i2b2/VA/Cincinnati Children's 2011 Challenge. The top Duluth system was a rule-based approach derived through manual corpus analysis and the use of measures of association to identify significant ngrams. This performed in the median range of systems, attaining an F-measure of 0.45. The second system was automatically derived from the most frequent bigrams unique to one or two emotions. It achieved an F-measure of 0.36. The third system was the union of the first two, and reached an F-measure of 0.44.<p />  <p>Language: en</p>
LA  - en
SN  - 1178-2226
UR  - http://dx.doi.org/10.4137/BII.S8953
ID  - ref1
ER  -