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Hits 1 – 2 of 2
1
English WordNet Taxonomic Random Walk Pseudo-Corpora
Klubicka, Filip
;
Maldonado, Alfredo
;
Mahalunkar, Abhijit
...
In: Conference papers (2020)
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2
Synthetic, Yet Natural: Properties of WordNet Random Walk Corpora and the impact of rare words on embedding performance
Klubicka, Filip
;
Mahalunkar, Abhijit
;
Maldonado, Alfredo
;
Kelleher, John D.
In: Conference papers (2019)
Abstract:
Creating word embeddings that reflect semantic relationships encoded in lexical knowledge resources is an open challenge. One approach is to use a random walk over a knowledge graph to generate a pseudo-corpus and use this corpus to train embeddings. However, the effect of the shape of the knowledge graph on the generated pseudo-corpora, and on the resulting word embeddings, has not been studied. To explore this, we use English WordNet, constrained to the taxonomic (tree-like) portion of the graph, as a case study. We investigate the properties of the generated pseudo-corpora, and their impact on the resulting embeddings. We find that the distributions in the psuedo-corpora exhibit properties found in natural corpora, such as Zipf’s and Heaps’ law, and also ob- serve that the proportion of rare words in a pseudo-corpus affects the performance of its embeddings on word similarity.
Keyword:
Artificial Intelligence and Robotics
;
Computational Linguistics
;
corpus
;
evaluation
;
Numerical Analysis and Scientific Computing
;
random walk
;
representations
;
Software Engineering
;
taxonomy
;
word embeddings
;
word similarity
;
WordNet
URL:
https://arrow.tudublin.ie/scschcomcon/271
https://arrow.tudublin.ie/cgi/viewcontent.cgi?article=1283&context=scschcomcon
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