Search Results for author: Christos Xypolopoulos

Found 7 papers, 3 papers with code

NLP Research and Resources at DaSciM, Ecole Polytechnique

no code implementations1 Dec 2021 Hadi Abdine, Yanzhu Guo, Moussa Kamal Eddine, Giannis Nikolentzos, Stamatis Outsios, Guokan Shang, Christos Xypolopoulos, Michalis Vazirgiannis

DaSciM (Data Science and Mining) part of LIX at Ecole Polytechnique, established in 2013 and since then producing research results in the area of large scale data analysis via methods of machine and deep learning.

Evaluation Of Word Embeddings From Large-Scale French Web Content

3 code implementations5 May 2021 Hadi Abdine, Christos Xypolopoulos, Moussa Kamal Eddine, Michalis Vazirgiannis

Adding that pretrained word vectors on huge text corpus achieved high performance in many different NLP tasks.

Word Embeddings

How COVID-19 Is Changing Our Language : Detecting Semantic Shift in Twitter Word Embeddings

no code implementations15 Feb 2021 Yanzhu Guo, Christos Xypolopoulos, Michalis Vazirgiannis

We employ an alignment-based approach to compare these embeddings with a general-purpose Twitter embedding unrelated to COVID-19.

Word Embeddings

Unsupervised Word Polysemy Quantification with Multiresolution Grids of Contextual Embeddings

1 code implementation EACL 2021 Christos Xypolopoulos, Antoine J. -P. Tixier, Michalis Vazirgiannis

A valuable by-product of our method is the ability to sample, at no extra cost, sentences containing different senses of a given word.

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