extract_entity_relation_mapper

Extracts entities and relations from text to build a knowledge graph.

  • Identifies entities based on specified types and extracts their names, types, and descriptions.

  • Identifies relationships between the entities, including source and target entities, relationship descriptions, keywords, and strength scores.

  • Uses a Hugging Face tokenizer and a predefined prompt template to guide the extraction process.

  • Outputs entities and relations in a structured format, using delimiters for separation.

  • Caches the results in the sample’s metadata under the keys ‘entity’ and ‘relation’.

  • Supports multiple retries and gleaning to ensure comprehensive extraction.

  • The default entity types include ‘organization’, ‘person’, ‘geo’, and ‘event’.

从文本中提取实体和关系以构建知识图谱。

  • 根据指定的类型识别实体，并提取它们的名称、类型和描述。

  • 识别实体之间的关系，包括源实体和目标实体、关系描述、关键词和强度分数。

  • 使用 Hugging Face 分词器和预定义的提示模板来指导提取过程。

  • 以结构化格式输出实体和关系，使用分隔符进行分隔。

  • 将结果缓存在样本的元数据中，键名为 ‘entity’ 和 ‘relation’。

  • 支持多次重试和搜集以确保全面提取。

  • 默认的实体类型包括 ‘organization’、’person’、’geo’ 和 ‘event’。

Type 算子类型: mapper

Tags 标签: cpu, api, text

🔧 Parameter Configuration 参数配置

name 参数名

type 类型

default 默认值

desc 说明

api_model

<class ‘str’>

'gpt-4o'

API model name.

entity_types

typing.List[str]

None

Pre-defined entity types for knowledge graph.

entity_key

<class ‘str’>

'entity'

The key name to store the entities in the meta

relation_key

<class ‘str’>

'relation'

The field name to store the relations between

api_endpoint

typing.Optional[str]

None

URL endpoint for the API.

response_path

typing.Optional[str]

None

Path to extract content from the API response.

prompt_template

typing.Optional[str]

None

The template of input prompt.

tuple_delimiter

typing.Optional[str]

None

Delimiter to separate items in outputs.

record_delimiter

typing.Optional[str]

None

Delimiter to separate records in outputs.

completion_delimiter

typing.Optional[str]

None

To mark the end of the output.

max_gleaning

typing.Annotated[int, Ge(ge=0)]

1

the extra max num to call LLM to glean entities

continue_prompt

typing.Optional[str]

None

the prompt for gleaning entities and

if_loop_prompt

typing.Optional[str]

None

the prompt to determine whether to stop

entity_pattern

typing.Optional[str]

None

Regular expression for parsing entity record.

relation_pattern

typing.Optional[str]

None

Regular expression for parsing relation

try_num

typing.Annotated[int, Gt(gt=0)]

3

The number of retry attempts when there is an API

drop_text

<class ‘bool’>

False

If drop the text in the output.

model_params

typing.Dict

{}

Parameters for initializing the API model.

sampling_params

typing.Dict

{}

Extra parameters passed to the API call.

kwargs

''

Extra keyword arguments.

📊 Effect demonstration 效果演示

not available 暂无