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Class: KeywordExtractor

Extract keywords from a list of nodes.

Hierarchy

Constructors

constructor

new KeywordExtractor(options?): KeywordExtractor

Constructor for the KeywordExtractor class.

Parameters

NameType
options?KeywordExtractArgs

Returns

KeywordExtractor

Throws

If keywords is less than 1.

Overrides

BaseExtractor.constructor

Defined in

packages/core/src/extractors/MetadataExtractors.ts:48

Properties

disableTemplateRewrite

disableTemplateRewrite: boolean = false

Inherited from

BaseExtractor.disableTemplateRewrite

Defined in

packages/core/src/extractors/types.ts:13


inPlace

inPlace: boolean = true

Inherited from

BaseExtractor.inPlace

Defined in

packages/core/src/extractors/types.ts:14


isTextNodeOnly

isTextNodeOnly: boolean = true

Inherited from

BaseExtractor.isTextNodeOnly

Defined in

packages/core/src/extractors/types.ts:10


keywords

keywords: number = 5

Number of keywords to extract.

Default

5

Defined in

packages/core/src/extractors/MetadataExtractors.ts:40


llm

llm: LLM<Record<string, unknown>>

LLM instance.

Defined in

packages/core/src/extractors/MetadataExtractors.ts:33


metadataMode

metadataMode: MetadataMode = MetadataMode.ALL

Inherited from

BaseExtractor.metadataMode

Defined in

packages/core/src/extractors/types.ts:12


numWorkers

numWorkers: number = 4

Inherited from

BaseExtractor.numWorkers

Defined in

packages/core/src/extractors/types.ts:15


showProgress

showProgress: boolean = true

Inherited from

BaseExtractor.showProgress

Defined in

packages/core/src/extractors/types.ts:11

Methods

extract

extract(nodes): Promise<ExtractKeyword[] | {}[]>

Parameters

NameTypeDescription
nodesBaseNode<Metadata>[]Nodes to extract keywords from.

Returns

Promise<ExtractKeyword[] | {}[]>

Keywords extracted from the nodes.

Overrides

BaseExtractor.extract

Defined in

packages/core/src/extractors/MetadataExtractors.ts:85


extractKeywordsFromNodes

extractKeywordsFromNodes(node): Promise<{} | ExtractKeyword>

Parameters

NameTypeDescription
nodeBaseNode<Metadata>Node to extract keywords from.

Returns

Promise<{} | ExtractKeyword>

Keywords extracted from the node.

Defined in

packages/core/src/extractors/MetadataExtractors.ts:63


processNodes

processNodes(nodes, excludedEmbedMetadataKeys?, excludedLlmMetadataKeys?): Promise<BaseNode<Metadata>[]>

Parameters

NameTypeDefault valueDescription
nodesBaseNode<Metadata>[]undefinedNodes to extract metadata from.
excludedEmbedMetadataKeysundefined | string[]undefinedMetadata keys to exclude from the embedding.
excludedLlmMetadataKeysundefined | string[]undefinedMetadata keys to exclude from the LLM.

Returns

Promise<BaseNode<Metadata>[]>

Metadata extracted from the nodes.

Inherited from

BaseExtractor.processNodes

Defined in

packages/core/src/extractors/types.ts:34


transform

transform(nodes, options?): Promise<BaseNode<Metadata>[]>

Parameters

NameType
nodesBaseNode<Metadata>[]
options?any

Returns

Promise<BaseNode<Metadata>[]>

Inherited from

BaseExtractor.transform

Defined in

packages/core/src/extractors/types.ts:19