NSSC: a neuro-symbolic AI system for enhancing accuracy of named entity recognition and linking from oncologic clinical notes.

Journal: Medical & biological engineering & computing
Published Date:

Abstract

Accurate recognition and linking of oncologic entities in clinical notes is essential for extracting insights across cancer research, patient care, clinical decision-making, and treatment optimization. We present the Neuro-Symbolic System for Cancer (NSSC), a hybrid AI framework that integrates neurosymbolic methods with named entity recognition (NER) and entity linking (EL) to transform unstructured clinical notes into structured terms using medical vocabularies, with the Unified Medical Language System (UMLS) as a case study. NSSC was evaluated on a dataset of clinical notes from breast cancer patients, demonstrating significant improvements in the accuracy of both entity recognition and linking compared to state-of-the-art models. Specifically, NSSC achieved a 33% improvement over BioFalcon and a 58% improvement over scispaCy. By combining large language models (LLMs) with symbolic reasoning, NSSC improves the recognition and interoperability of oncologic entities, enabling seamless integration with existing biomedical knowledge. This approach marks a significant advancement in extracting meaningful information from clinical narratives, offering promising applications in cancer research and personalized patient care.

Authors

  • Álvaro García-Barragán
    Center of Biomedical Technology, Universidad Politécnica de Madrid, Campus Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain. alvaro.gbarragan@upm.es.
  • Ahmad Sakor
    Data Science Institute, Leibniz University of Hannover, Welfengarten 1, Hannover, 30060, Lower Saxony, Germany. sakor@l3s.de.
  • Maria-Esther Vidal
  • Ernestina Menasalvas
    Universidad Politécnica de Madrid, Centro de Tecnología Biomédica, Spain.
  • Juan Cristobal Sanchez Gonzalez
    Oncology, Hospital Puerta de Hierro, Madrid, Spain.
  • Mariano Provencio
    Medical Oncology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain.
  • Víctor Robles
    Center of Biomedical Technology, Universidad Politécnica de Madrid, Campus Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain. victor.robles@upm.es.