Applying Part-of-Seech Enhanced LSA to Automatic Essay Grading
Information Retrieval
2007-05-23 v1 Computation and Language
Abstract
Latent Semantic Analysis (LSA) is a widely used Information Retrieval method based on "bag-of-words" assumption. However, according to general conception, syntax plays a role in representing meaning of sentences. Thus, enhancing LSA with part-of-speech (POS) information to capture the context of word occurrences appears to be theoretically feasible extension. The approach is tested empirically on a automatic essay grading system using LSA for document similarity comparisons. A comparison on several POS-enhanced LSA models is reported. Our findings show that the addition of contextual information in the form of POS tags can raise the accuracy of the LSA-based scoring models up to 10.77 per cent.
Cite
@article{arxiv.cs/0610118,
title = {Applying Part-of-Seech Enhanced LSA to Automatic Essay Grading},
author = {Tuomo Kakkonen and Niko Myller and Erkki Sutinen},
journal= {arXiv preprint arXiv:cs/0610118},
year = {2007}
}