A Neural Layered Model for Nested Named Entity Recognition

NAACL 2018 Meizhi JuMakoto MiwaSophia Ananiadou

Entity mentions embedded in longer entity mentions are referred to as nested entities. Most named entity recognition (NER) systems deal only with the flat entities and ignore the inner nested ones, which fails to capture finer-grained semantic information in underlying texts... (read more)

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Results from the Paper


TASK DATASET MODEL METRIC NAME METRIC VALUE GLOBAL RANK BENCHMARK
Nested Mention Recognition ACE 2005 Neural layered model F1 72.2 # 9
Named Entity Recognition ACE 2005 Neural layered model F1 72.2 # 10
Nested Named Entity Recognition ACE 2005 Neural layered model F1 72.2 # 11
Nested Named Entity Recognition GENIA Neural layered model F1 74.7 # 11
Named Entity Recognition GENIA Neural layered model F1 74.7 # 7

Methods used in the Paper