Search Results for author: Christos Theodoropoulos

Found 5 papers, 3 papers with code

Representation Learning for Person or Entity-centric Knowledge Graphs: An Application in Healthcare

1 code implementation9 May 2023 Christos Theodoropoulos, Natasha Mulligan, Thaddeus Stappenbeck, Joao Bettencourt-Silva

KGs are used to discover diagnoses or prioritize genes relevant to disease, but they often rely on schemas that are not centred around a node or entity of interest, such as a person.

Person-Centric Knowledge Graphs Readmission Prediction +1

An Information Extraction Study: Take In Mind the Tokenization!

1 code implementation27 Mar 2023 Christos Theodoropoulos, Marie-Francine Moens

Current research on the advantages and trade-offs of using characters, instead of tokenized text, as input for deep learning models, has evolved substantially.

Inductive Bias Named Entity Recognition (NER) +1

Imposing Relation Structure in Language-Model Embeddings Using Contrastive Learning

1 code implementation CoNLL (EMNLP) 2021 Christos Theodoropoulos, James Henderson, Andrei C. Coman, Marie-Francine Moens

Though language model text embeddings have revolutionized NLP research, their ability to capture high-level semantic information, such as relations between entities in text, is limited.

Contrastive Learning Language Modelling +7

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