WordNet organizes the relation between terms and synsets, and a term may have many meanings, which is called polysemous term. As a result, the relation between terms and synsets is many-to-many relationship and wrong term-synset relation can occur in WordNet, which caused overload. 

University of Notre Dame

Lexicon quality challenges can be either a overload work or underload. Overload means it has some inappropriate senses, lemmas, or relations and produce overload components in LSR. Underwork means it has some missing senses, lemmas or connections. There are some specific challenges: 

1)	Polysemy

2)	Missing Senses, Lemmas and Relations


LSR Quality Challenges

Khalilia, H., Freihat, A. A., & Giunchiglia, F. (2021). The Quality of Lexical Semantic Resources: A Survey. In Proceedings of The Fourth International Conference on Natural Language and Speech Processing (ICNLSP 2021) (pp. 117-129).

The Quality of Lexical Semantic Resources: A Survey

Polysemy

There are large amount of term-synset pairs in WordNet, which caused underload.

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