Classifying the Semantic Relations in Noun Compounds via a Domain-Specific Lexical Hierarchy
What it is about
The paper classifies the semantic relation inside a two-word noun compound in biomedical text, for example treatment-for-disease in "migraine treatment". The authors define 38 relations by iterative refinement over the compounds. Each noun is mapped to a MeSH term through UMLS, so the hierarchy gives a category for a noun the training data has never seen. The data holds 2,245 compounds whose two nouns both map to MeSH. A neural network with one-of-eighteen output reaches up to 62% accuracy. The test that matters is the unseen-word case: training on the hierarchy generalises better than a baseline that uses the words themselves, and the paper reports strong results on compounds whose words are not in the training set.
Ideas
- I1. A WordNet analogue in
onto: map each noun to its hypernym chain at a chosen depth, as the paper maps to MeSH, and classify relations by a counted table with back-off. Measure: accuracy on held-out EWT compounds whose nouns are absent from training, against the word-only baseline. - I2. Split every test set by word: report accuracy on seen and on unseen nouns. The paper's main claim rests on this split, so
en foldsshould report it too. - I3. Relation labels as a
pragrole on the compound, with the chosen relation given with its reason from the hierarchy. Measure: the share of labels with a stated reason on EWT, and the agreer's rejection rate on a hand-checked sample.
For Mova
The chapter is 18. Compounding, conversion and the minor processes. The code is onto/src/wsd.rs (the hierarchy, as an explained choice) and world/src/frames.rs for the relations. The paper's data is biomedical, so it does not fit general English; it is not Mova data, and any figure must come from EWT test.
Cite
@inproceedings{rosario2001classifying,
title = {{Classifying the Semantic Relations in Noun Compounds via a Domain-Specific Lexical Hierarchy}},
author = {Rosario, Barbara and Hearst, Marti},
booktitle = {Proceedings of the 2001 Conference on Empirical Methods in Natural Language Processing},
year = {2001},
url = {https://aclanthology.org/W01-0511/}
}References
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