Nested Mention Recognition

10 papers with code • 2 benchmarks • 4 datasets

Nested mention recognition is the task of correctly modeling the nested structure of mentions.

Bipartite Flat-Graph Network for Nested Named Entity Recognition

cslydia/BiFlaG ACL 2020

In this paper, we propose a novel bipartite flat-graph network (BiFlaG) for nested named entity recognition (NER), which contains two subgraph modules: a flat NER module for outermost entities and a graph module for all the entities located in inner layers.

62
01 May 2020

A Unified MRC Framework for Named Entity Recognition

ShannonAI/mrc-for-flat-nested-ner ACL 2020

Instead of treating the task of NER as a sequence labeling problem, we propose to formulate it as a machine reading comprehension (MRC) task.

629
25 Oct 2019

Nested Named Entity Recognition via Second-best Sequence Learning and Decoding

yahshibu/nested-ner-tacl2020-transformers 5 Sep 2019

When an entity name contains other names within it, the identification of all combinations of names can become difficult and expensive.

139
05 Sep 2019

Neural Architectures for Nested NER through Linearization

ufal/acl2019_nested_ner ACL 2019

We propose two neural network architectures for nested named entity recognition (NER), a setting in which named entities may overlap and also be labeled with more than one label.

91
19 Aug 2019

Merge and Label: A novel neural network architecture for nested NER

fishjh2/merge_label ACL 2019

Named entity recognition (NER) is one of the best studied tasks in natural language processing.

46
30 Jun 2019

Multi-Grained Named Entity Recognition

congyingxia/Multi-Grained-NER ACL 2019

This paper presents a novel framework, MGNER, for Multi-Grained Named Entity Recognition where multiple entities or entity mentions in a sentence could be non-overlapping or totally nested.

35
20 Jun 2019

Sequence-to-Nuggets: Nested Entity Mention Detection via Anchor-Region Networks

sanmusunrise/ARNs ACL 2019

In this paper, we propose to resolve this problem by modeling and leveraging the head-driven phrase structures of entity mentions, i. e., although a mention can nest other mentions, they will not share the same head word.

46
10 Jun 2019

A Neural Transition-based Model for Nested Mention Recognition

berlino/nest-trans-em18 EMNLP 2018

It is common that entity mentions can contain other mentions recursively.

36
03 Oct 2018

Neural Segmental Hypergraphs for Overlapping Mention Recognition

berlino/overlapping-ner-em18 EMNLP 2018

In this work, we propose a novel segmental hypergraph representation to model overlapping entity mentions that are prevalent in many practical datasets.

25
03 Oct 2018

A Neural Layered Model for Nested Named Entity Recognition

meizhiju/layered-bilstm-crf NAACL 2018

Each flat NER layer is based on the state-of-the-art flat NER model that captures sequential context representation with bidirectional Long Short-Term Memory (LSTM) layer and feeds it to the cascaded CRF layer.

100
01 Jun 2018