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Nested named entity recognition is a subtask of information extraction that seeks to locate and classify nested named entities (i.e., hierarchically structured entities) mentioned in unstructured text (Source: Adapted from Wikipedia).

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Latest papers without code

Named Entity Recognition in the Style of Object Detection

26 Jan 2021

In this work, we propose a two-stage method for named entity recognition (NER), especially for nested NER.

NESTED NAMED ENTITY RECOGNITION OBJECT DETECTION REGION PROPOSAL

Structured Prediction as Translation between Augmented Natural Languages

ICLR 2021

We propose a new framework, Translation between Augmented Natural Languages (TANL), to solve many structured prediction language tasks including joint entity and relation extraction, nested named entity recognition, relation classification, semantic role labeling, event extraction, coreference resolution, and dialogue state tracking.

COREFERENCE RESOLUTION DIALOGUE STATE TRACKING EVENT EXTRACTION JOINT ENTITY AND RELATION EXTRACTION MULTI-TASK LEARNING NESTED NAMED ENTITY RECOGNITION RELATION CLASSIFICATION SEMANTIC ROLE LABELING STRUCTURED PREDICTION

A Boundary Regression Model for Nested Named Entity Recognition

29 Nov 2020

Bounding boxes are generated from the feature maps, where a box is an abstract representation of an NE candidate.

NESTED NAMED ENTITY RECOGNITION

CopyNext: Explicit Span Copying and Alignment in Sequence to Sequence Models

28 Oct 2020

Copy mechanisms are employed in sequence to sequence models (seq2seq) to generate reproductions of words from the input to the output.

NESTED NAMED ENTITY RECOGNITION

NNE: A Dataset for Nested Named Entity Recognition in English Newswire

ACL 2019

Named entity recognition (NER) is widely used in natural language processing applications and downstream tasks.

NESTED NAMED ENTITY RECOGNITION

Hierarchical Nested Named Entity Recognition

WS 2019

In the medical domain and other scientific areas, it is often important to recognize different levels of hierarchy in mentions, such as those related to specific symptoms or diseases associated with different anatomical regions.

NESTED NAMED ENTITY RECOGNITION

Nested Named Entity Recognition Revisited

NAACL 2018

We propose a novel recurrent neural network-based approach to simultaneously handle nested named entity recognition and nested entity mention detection.

COREFERENCE RESOLUTION NESTED NAMED ENTITY RECOGNITION OPINION MINING RELATION EXTRACTION