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Named-entity recognition

Named-entity recognition (NER) (also known as (named) entity identification, entity chunking, and entity extraction) is a subtask of information extraction that seeks to locate and classify named entities mentioned in unstructured text into pre-defined categories such as person names (PER), organizations (ORG), locations (LOC), geopolitical entities…

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Map overview Semantic statistics

Named-entity recognition

Nodes80
Edges79
Triples38
Avg. degree1.98
Density0.025
Components1

How this topic connects Entity context

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Named-entity recognition

Top relations

related to Current challenges · 14
Named-entity recognition → And, Another, CRF, Despite, F1, HMM, In, Markov, ME, MUC-7, NER, The, There, Twitter
related to Definition · 14
Named-entity recognition → America, Bank, De, For, Ford, Ford Motor Company, Full, Henry Ford, In, NER, Rigid, Saul Kripke, The, This
related to Approaches · 5
Named-entity recognition → GATE, Java API, NER, OpenNLP, State

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Important terminology

ner entity entities names systems example name text types named also many refer statistical recognition one person precision organization well

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
person namesinstance ofis a subtask of information extraction that seeks to locate and classify named entities mentioned in unstructured text into pre-defined categories0.80text
CoNLLinstance ofIn academic conferences0.80text
a variant of the F1 score has been defined as followsinstance ofIn academic conferences0.80text
machine learninginstance ofApproachesNER systems have been created that use linguistic grammar-based techniques as well as statistical models0.80text
HMMinstance ofAnother challenging task is devising models to deal with linguistically complex contexts such as Twitter and search queries.There are some researchers who did some comparisons a…0.80text
Named-entity recognitionrelated to ApproachesNER0.60section
Named-entity recognitionrelated to ApproachesState0.60section
Named-entity recognitionrelated to ApproachesGATE0.60section
Named-entity recognitionrelated to ApproachesJava API0.60section
Named-entity recognitionrelated to ApproachesOpenNLP0.60section
Named-entity recognitionrelated to Current challengesDespite0.60section
Named-entity recognitionrelated to Current challengesF10.60section

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