Hadi Nejabat
Fine-grained Named Entity Recognition using Ontology-Guided Knowledge Graphs.
Rel. Andrea Bottino. Politecnico di Torino, Master of science program in Data Science And Engineering, 2023
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Abstract
The field of Fine-Grained Named Entity Recognition (FG-NER) has received noticeable attention in recent years. Scientific literature, academia, and real-world analysis need fine-grained NER tools to be able to categorize and process a wide range of information and semantics. With the advent of transformer models in the field of NLP, several studies have shown a considerable rise in the performance of transformer-based NER models compared to their prior state-of-the-art methods. In consonance with literature, many of the most performant NER models in this field are limited to coarse-grained entity labels, with fewer than 10 categories. And there is limited research work on classifying named entities into finer and more detailed subgroups.
These labels are far from enough for downstream tasks like improving automated QA systems, powering recommender systems, etc
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