CLaC Laboratory

NLP experiments

The following experiments shows online natural language processing experiments and applications, specifically related to semantic analysis.
The main experiments take advantage of a semantic network, examples of the semantic network and the path between two words in that network is shown in the figures to the right.

Experiments include: Words Semantic Relatedness and Similarity, Word-Phrase Semantic Similarity, and Semantic Compositionality in Context.


Experiments

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Words Semantic Relatedness

Words semantic relatedness is a measurement of the degree to which two words are related.

The following online demo calculates two words semantic relatedness using the shorted path in a weighted semantic network. The weights are based on human annotators ratings of the relatedness of a specfic path type.

For example, if you compute the semantic relatedness of: "Car" and "Vehicle" based on this demo, the result is that they are 91.5% semantically related.

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  • 0%

Reference:
PDF   Reda Siblini and Leila Kosseim (2013). Using a Weighted Semantic Network for Lexical Semantic Relatedness. In Proceedings of Recent Advances in Natural Language Processing (RANLP 2013), September, Hissar, Bulgaria.

Word-Phrase Semantic Similarity

This online demo evaluate semantic similarity of words and compositional phrases. The demo evaluates the semantic similarity of a word and a short sequence of two words. For example, in the word "contact" and the phrase "close interaction" are semantically similar.


  • Negative

Reference:
PDFBib Reda Siblini and Leila Kosseim. ClaC: Semantic Relatedness of Words and Phrases. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013), June, Atlanta, Georgia, USA, pp. 108--113,http://www.aclweb.org/anthology/S13-2019

Relations between Words

This online demo returns the relations between words described by a set of prepositions and coordinations. For example, "Car" is related with the following set: (with, on, and, without, behind, at, of) to the word "Wheel"



Reference: to be published

Semantic Compositionality in Context

This online demo evaluate the compositionality of phrases in context. the demo decides whether a phrase is used in its literal or figurative meaning in a given context. For example, the phrase "big picture" as in the context "Click here for a bigger picture" is used literally, whereas in the context "To solve this problem, you have to look at the big picture." it is used figuratively.


  • Literally

Reference: PDFBib Reda Siblini and Leila Kosseim. ClaC: Semantic Relatedness of Words and Phrases. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013), June, Atlanta, Georgia, USA, pp. 108--113,http://www.aclweb.org/anthology/S13-2019