Friday 29th of March 2024
 

Clinical Relationships Extraction Techniques from Patient Narratives


Wafaa Tawfik Abdel-Moneim, Mohamed Hashem Abdel-Aziz and Mohamed Monier Hassan

The Clinical E-Science Framework (CLEF) project was used to extract important information from medical texts by building a system for the purpose of clinical research, evidence-based healthcare and genotype-meets-phenotype informatics. The system is divided into two parts, one part concerns with the identification of relationships between clinically important entities in the text. The full parses and domain-specific grammars had been used to apply many approaches to extract the relationship. In the second part of the system, statistical machine learning (ML) approaches are applied to extract relationship. A corpus of oncology narratives that hand annotated with clinical relationships can be used to train and test a system that has been designed and implemented by supervised machine learning (ML) approaches. Many features can be extracted from these texts that are used to build a model by the classifier. Multiple supervised machine learning algorithms can be applied for relationship extraction. Effects of adding the features, changing the size of the corpus, and changing the type of the algorithm on relationship extraction are examined.

Keywords: Text mining; information extraction; NLP; entities; and relations

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ABOUT THE AUTHORS

Wafaa Tawfik Abdel-Moneim
Teaching Assistant in Information System Department, Faculty of Computers and Informatics, Zagazig University

Mohamed Hashem Abdel-Aziz
Professor in Information System Department, Faculty of Computers and Informatics, Ain-Shames University

Mohamed Monier Hassan
Professor Assistant in Information System Department, Faculty of Computers and Informatics, Zagazig University


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