Class: TitleExtractor
Extract title from a list of nodes.
Hierarchy
-
↳
TitleExtractor
Constructors
constructor
• new TitleExtractor(options?): TitleExtractor
Constructor for the TitleExtractor class.
Parameters
| Name | Type |
|---|---|
options? | TitleExtractorsArgs |
Returns
Overrides
Defined in
packages/core/src/extractors/MetadataExtractors.ts:147
Properties
combineTemplate
• combineTemplate: string
The prompt template to merge title with..
Defined in
packages/core/src/extractors/MetadataExtractors.ts:138
disableTemplateRewrite
• disableTemplateRewrite: boolean = false
Inherited from
BaseExtractor.disableTemplateRewrite
Defined in
packages/core/src/extractors/types.ts:13
inPlace
• inPlace: boolean = true
Inherited from
Defined in
packages/core/src/extractors/types.ts:14
isTextNodeOnly
• isTextNodeOnly: boolean = false
Can work for mixture of text and non-text nodes
Default
false
Overrides
Defined in
packages/core/src/extractors/MetadataExtractors.ts:119
llm
• llm: LLM<object, object>
LLM instance.
Defined in
packages/core/src/extractors/MetadataExtractors.ts:112
metadataMode
• metadataMode: MetadataMode = MetadataMode.ALL
Inherited from
Defined in
packages/core/src/extractors/types.ts:12
nodeTemplate
• nodeTemplate: string
The prompt template to use for the title extractor.
Defined in
packages/core/src/extractors/MetadataExtractors.ts:132
nodes
• nodes: number = 5
Number of nodes to extrct titles from.
Default
5
Defined in
packages/core/src/extractors/MetadataExtractors.ts:126
numWorkers
• numWorkers: number = 4
Inherited from
Defined in
packages/core/src/extractors/types.ts:15
showProgress
• showProgress: boolean = true
Inherited from
Defined in
packages/core/src/extractors/types.ts:11
Methods
extract
▸ extract(nodes): Promise<ExtractTitle[]>
Extract titles from a list of nodes.
Parameters
| Name | Type | Description |
|---|---|---|
nodes | BaseNode<Metadata>[] | Nodes to extract titles from. |
Returns
Promise<ExtractTitle[]>
Titles extracted from the nodes.
Overrides
Defined in
packages/core/src/extractors/MetadataExtractors.ts:164
extractTitles
▸ extractTitles(nodesByDocument): Promise<Record<string, string>>
Parameters
| Name | Type |
|---|---|
nodesByDocument | Record<string, BaseNode<Metadata>[]> |
Returns
Promise<Record<string, string>>
Defined in
packages/core/src/extractors/MetadataExtractors.ts:212
filterNodes
▸ filterNodes(nodes): BaseNode<Metadata>[]
Parameters
| Name | Type |
|---|---|
nodes | BaseNode<Metadata>[] |
Returns
Defined in
packages/core/src/extractors/MetadataExtractors.ts:181
getTitlesCandidates
▸ getTitlesCandidates(nodes): Promise<string[]>
Parameters
| Name | Type |
|---|---|
nodes | BaseNode<Metadata>[] |
Returns
Promise<string[]>
Defined in
packages/core/src/extractors/MetadataExtractors.ts:232
processNodes
▸ processNodes(nodes, excludedEmbedMetadataKeys?, excludedLlmMetadataKeys?): Promise<BaseNode<Metadata>[]>
Parameters
| Name | Type | Default value | Description |
|---|---|---|---|
nodes | BaseNode<Metadata>[] | undefined | Nodes to extract metadata from. |
excludedEmbedMetadataKeys | undefined | string[] | undefined | Metadata keys to exclude from the embedding. |
excludedLlmMetadataKeys | undefined | string[] | undefined | Metadata keys to exclude from the LLM. |
Returns
Metadata extracted from the nodes.
Inherited from
Defined in
packages/core/src/extractors/types.ts:34
separateNodesByDocument
▸ separateNodesByDocument(nodes): Record<string, BaseNode<Metadata>[]>
Parameters
| Name | Type |
|---|---|
nodes | BaseNode<Metadata>[] |
Returns
Record<string, BaseNode<Metadata>[]>
Defined in
packages/core/src/extractors/MetadataExtractors.ts:190
transform
▸ transform(nodes, options?): Promise<BaseNode<Metadata>[]>
Parameters
| Name | Type |
|---|---|
nodes | BaseNode<Metadata>[] |
options? | any |