# 实体识别与类型标记

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP3oAOpHDlcu2CsCGUA%2F-LP3oa6ay4G1aDJD2SVm%2FTimLine%E6%88%AA%E5%9B%BE20181018093745.png?alt=media\&token=d5683dc4-817b-4a26-bb98-eb6b67940481)

## 传统的NER局限

1、领域受限：必须已经在NER工具中记录过的实体，在实体识别在才有可能被发掘。

2、名称多义：比如华盛顿，即使地名又是人名还是球队名...

3、文本稀疏：某些实体只有在少数文本中提及

## 基于关系图结构和传递性的实体提取与类型标记

### [ClusType: Effective Entity Recognition and Typing by Relation Phrase-Based Clustering](https://github.com/INK-USC/ClusType)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP4zyJ5zx-NC6aKdxT2%2F-LP50F_c0ZlMRgGbK0OP%2FTimLine%E6%88%AA%E5%9B%BE20181018151242.png?alt=media\&token=ca98e97d-4648-4d31-9206-fdd190f42f18)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP51SPfOuRnAstfxzaY%2FTimLine%E6%88%AA%E5%9B%BE20181018151751.png?alt=media\&token=760655bf-9c9e-4ee3-87f2-53f3fa2e9d90)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP51Zk9rKDRxgS_F7qz%2FTimLine%E6%88%AA%E5%9B%BE20181018151826.png?alt=media\&token=fe16557b-8473-44dc-84c0-c3cf9c9af87b)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP51lOFen2s_qrtwN-7%2FTimLine%E6%88%AA%E5%9B%BE20181018151918.png?alt=media\&token=94096454-9fb9-4280-a537-e93773fa3ab1)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP52-6nOdVad_oAoCKX%2FTimLine%E6%88%AA%E5%9B%BE20181018152018.png?alt=media\&token=a08afa49-81f2-4479-897e-c993db20c03f)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP52I4JWUDfyHGFYUjr%2FTimLine%E6%88%AA%E5%9B%BE20181018152134.png?alt=media\&token=1b421003-046e-484c-86bc-13640dfc9e35)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP52mW8OpobFn5QeKFF%2FTimLine%E6%88%AA%E5%9B%BE20181018152343.png?alt=media\&token=946bf5fb-23ab-4cc3-a4c6-d2ca9e72dcb3)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP531eKUTVWeeRYpD2x%2FTimLine%E6%88%AA%E5%9B%BE20181018152450.png?alt=media\&token=61715f4b-8f22-455d-904e-b5cac9e69002)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP53CN5pUBd5TImQ1Av%2FTimLine%E6%88%AA%E5%9B%BE20181018152534.png?alt=media\&token=5381806e-448b-493e-8772-78492594e28e)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP53k-WEWRRpU6aKquw%2FTimLine%E6%88%AA%E5%9B%BE20181018152751.png?alt=media\&token=59b0cc7c-c017-47cb-a199-93cce2858cd1)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP53x_jkOTaMRdSqTk7%2FTimLine%E6%88%AA%E5%9B%BE20181018152850.png?alt=media\&token=5a5a39fa-cb7f-4f99-aa36-e1911d32853a)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP549MRkcSsIm7i8yQg%2FTimLine%E6%88%AA%E5%9B%BE20181018152939.png?alt=media\&token=66b09ddd-11bb-4f0e-be2d-3adf0a2b1add)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP54OcTcdvV3ljIOUVQ%2FTimLine%E6%88%AA%E5%9B%BE20181018153046.png?alt=media\&token=edeb5927-c318-408f-a871-d75094a103f0)

## 细粒度实体类型的标记

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP551WKjUjk0Qts76kq%2FTimLine%E6%88%AA%E5%9B%BE20181018153328.png?alt=media\&token=94a04d42-1323-4307-9e3d-996330f59758)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP55ZfHsQDKQ2Kcu5zs%2FTimLine%E6%88%AA%E5%9B%BE20181018153553.png?alt=media\&token=8798fb24-00c4-4174-a252-47f97ecac29a)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP55gblconr58-1Nx5c%2FTimLine%E6%88%AA%E5%9B%BE20181018153628.png?alt=media\&token=5f4a2bfe-a760-4c55-88fc-de3e54031f65)

### [PLE(Heterogeneous Partial-Label Embedding)](https://github.com/INK-USC/PLE)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP55rFFhJgZND5YoVjU%2FTimLine%E6%88%AA%E5%9B%BE20181018153704.png?alt=media\&token=311c2c63-ad9b-4fce-a42b-7948a8d7d0dc)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP56GGbjkS1fiTfuX_R%2FTimLine%E6%88%AA%E5%9B%BE20181018153857.png?alt=media\&token=34474119-55e9-4c0b-843b-76b8d31e83de)

### [AFET(Automatic Fine-Grained Entity Typing by Hierarchical Partial-Label Embedding)](https://github.com/INK-USC/AFET)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP56mzp7FQtYuwq39Em%2FTimLine%E6%88%AA%E5%9B%BE20181018154104.png?alt=media\&token=c8c72f97-ec9a-4914-8874-4d7c89b39794)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP56vO4EWi5r-QBv2__%2FTimLine%E6%88%AA%E5%9B%BE20181018154149.png?alt=media\&token=5c01c041-5d7b-4858-81df-5cad8f549e80)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP50eW8zPYyWQek8r2O%2F-LP572ePq8blt1ZSsEwp%2FTimLine%E6%88%AA%E5%9B%BE20181018154222.png?alt=media\&token=0ac5f755-72e1-4201-9e10-beb49ab2fe2d)

## 实体与相互间关系的联合类型标记

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP5AaFxVS0LIzmi0un7%2F-LP5Ajcp5KRPU65wAw7K%2FTimLine%E6%88%AA%E5%9B%BE20181018155824.png?alt=media\&token=a5ea8e2a-03c2-456c-a77c-88c8885973b1)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP5AaFxVS0LIzmi0un7%2F-LP5Ar6nTn-KDsV2t7Ho%2FTimLine%E6%88%AA%E5%9B%BE20181018155858.png?alt=media\&token=fa7cf381-a73d-405f-89a2-f1d1a60c4081)

### [CoType: Joint Typing of Entities and Relations](https://github.com/INK-USC/DS-RelationExtraction)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP5AaFxVS0LIzmi0un7%2F-LP5AzY3RnLU0jhxI2WT%2FTimLine%E6%88%AA%E5%9B%BE20181018155932.png?alt=media\&token=09ae73dd-737d-4cf1-878a-1aca7b528641)

![](https://686859917-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LK1Q5wVABDXPa7Mueaw%2F-LP5AaFxVS0LIzmi0un7%2F-LP5BLhtSZJernNwDH4D%2FTimLine%E6%88%AA%E5%9B%BE20181018160109.png?alt=media\&token=3c0f1b81-bd49-4890-b52c-d22538aa7154)

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