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Structural semantic interconnections: a knowledge-based approach to word sense disambiguation.
Roberto Navigli1, Paola Velardi
1Dipartimento di Informatica, Università of Roma La Sapienza, via Salaria 113, 00198 Roma, Italy. navigli@di.uniroma.it
Summary
Structural Semantic Interconnections (SSI) offers a novel approach to Word Sense Disambiguation (WSD), overcoming limitations of current machine learning methods. This knowledge-based technique enhances web applications by accurately identifying word meanings in context.
Area of Science:
- Natural Language Processing
- Artificial Intelligence
- Computational Linguistics
Background:
- Word Sense Disambiguation (WSD) is a challenging AI problem with significant implications for web applications.
- Traditional knowledge-based and modern machine learning/statistical methods for WSD have inherent limitations.
- The growing availability of large-scale lexical resources presents new opportunities for knowledge-based WSD.
Purpose of the Study:
- To introduce a novel knowledge-based method for Word Sense Disambiguation called Structural Semantic Interconnections (SSI).
- To address the limitations of existing WSD approaches by integrating diverse lexical resources.
- To demonstrate the applicability of SSI across various semantic disambiguation tasks.
Main Methods:
- Developed the Structural Semantic Interconnections (SSI) method to create structural sense specifications for words in context.
- Integrated multiple lexical resources, partly manually and partly automatically, to generate sense specifications.
- Utilized a grammar G to define relations between sense specifications and select the most plausible word sense.
Main Results:
- Applied the SSI algorithm to diverse disambiguation tasks, including ontology population and text/glossary disambiguation.
- Conducted evaluation experiments across specific domains (tourism, computer networks) and standard test sets.
- Demonstrated the effectiveness of SSI in addressing semantic disambiguation challenges.
Conclusions:
- The SSI method provides a robust knowledge-based alternative for Word Sense Disambiguation.
- SSI effectively leverages integrated lexical resources to improve WSD accuracy.
- The approach shows promise for enhancing various web-based applications reliant on accurate word meaning identification.