Paper: SOFTCARDINALITY: Hierarchical Text Overlap for Student Response Analysis

ACL ID S13-2047
Title SOFTCARDINALITY: Hierarchical Text Overlap for Student Response Analysis
Venue Joint Conference on Lexical and Computational Semantics
Session
Year 2013
Authors

In this paper we describe our system used to participate in the Student-Response-Analysis task-7 at SemEval 2013. This system is based on text overlap through the soft cardinality and a new mechanism for weight propagation. Al- though there are several official performance measures, taking into account the overall ac- curacy throughout the two availabe data sets (Beetle and SciEntsBank), our system ranked first in the 2 way classification task and sec- ond in the others. Furthermore, our sys- tem performs particularly well with ?unseen- domains? instances, which was the more chal- lenging test set. This paper also describes an- other system that integrates this method with the lexical-overlap baseline provided by the task organizers obtaining better results than the best official results. ...