NTNU at SemEval-2018 Task 7: Classifier Ensembling for Semantic Relation Identification and Classification in Scientific Papers

Biswanath Barik, Utpal Kumar Sikdar, Björn Gambäck
2018 Proceedings of The 12th International Workshop on Semantic Evaluation  
The paper presents NTNU's contribution to SemEval-2018 Task 7 on relation identification and classification. The class weights and parameters of five alternative supervised classifiers were optimized through grid search and cross-validation. The outputs of the classifiers were combined through voting for the final prediction. A wide variety of features were explored, with the most informative identified by feature selection. The best setting achieved F 1 scores of 47.4% and 66.0% in the
more » ... classification subtasks 1.1 and 1.2. For relation identification and classification in subtask 2, it achieved F 1 scores of 33.9% and 17.0%,
doi:10.18653/v1/s18-1138 dblp:conf/semeval/BarikSG18 fatcat:nuwk5lcy2rccjgfzjt5pfc5hdm