INDEXING CONTENT AT SEMANTIC LEVEL
First Claim
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1. A semantic tagging method that outputs semantically linked tags for text content comprising:
- inputting the text content;
extracting nouns and noun phrases from the text content;
mapping the extracted nouns and noun phrases to terms of an ontology;
mapping the extracted nouns and noun phrases to a correct sense of the ontology terms using lexical chaining Word Sense Disambiguation (WSD) algorithms;
weighting the significance of the extracted nouns'"'"' and noun phrases'"'"' concepts from their ontological and statistical features;
extracting key-phrases from the weighted concepts; and
outputting the key-phrases as semantic tags.
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Abstract
Systems and methods are disclosed that perform automated semantic tagging. Automated semantic tagging produces semantically linked tags for a given text content. Embodiments provide ontology mapping algorithms and concept weighting algorithms that create accurate semantic tags that can be used to improve enterprise content management, and search for better knowledge management and collaboration.
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Citations
25 Claims
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1. A semantic tagging method that outputs semantically linked tags for text content comprising:
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inputting the text content; extracting nouns and noun phrases from the text content; mapping the extracted nouns and noun phrases to terms of an ontology; mapping the extracted nouns and noun phrases to a correct sense of the ontology terms using lexical chaining Word Sense Disambiguation (WSD) algorithms; weighting the significance of the extracted nouns'"'"' and noun phrases'"'"' concepts from their ontological and statistical features; extracting key-phrases from the weighted concepts; and outputting the key-phrases as semantic tags. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification