HierarchyLinkExtractor#

class langchain_community.graph_vectorstores.extractors.hierarchy_link_extractor.HierarchyLinkExtractor(*, kind: str = 'hierarchy', parent_links: bool = True, child_links: bool = False, sibling_links: bool = False)[source]#

Beta

This feature is in beta. It is actively being worked on, so the API may change.

Extract links from a document hierarchy.

Example

# Given three paths (in this case, within the "Root" document):
h1 = ["Root", "H1"]
h1a = ["Root", "H1", "a"]
h1b = ["Root", "H1", "b"]

# Parent links `h1a` and `h1b` to `h1`.
# Child links `h1` to `h1a` and `h1b`.
# Sibling links `h1a` and `h1b` together (both directions).

Example use with documents:

Parameters:

kind (str) – Kind of links to produce with this extractor.
parent_links (bool) – Link from a section to its parent.
child_links (bool) – Link from a section to its children.
sibling_links (bool) – Link from a section to other sections with the same parent.

Methods

`__init__`(*[, kind, parent_links, ...])	Extract links from a document hierarchy.
`as_document_extractor`(hierarchy)	Create a LinkExtractor from Document.
`extract_many`(inputs)	Add edges from each input to the corresponding documents.
`extract_one`(input)	Add edges from each input to the corresponding documents.

__init__(*, kind: str = 'hierarchy', parent_links: bool = True, child_links: bool = False, sibling_links: bool = False)[source]#

Extract links from a document hierarchy.

Example

# Given three paths (in this case, within the "Root" document):
h1 = ["Root", "H1"]
h1a = ["Root", "H1", "a"]
h1b = ["Root", "H1", "b"]

# Parent links `h1a` and `h1b` to `h1`.
# Child links `h1` to `h1a` and `h1b`.
# Sibling links `h1a` and `h1b` together (both directions).

Example use with documents:

Parameters:

kind (str) – Kind of links to produce with this extractor.
parent_links (bool) – Link from a section to its parent.
child_links (bool) – Link from a section to its children.
sibling_links (bool) – Link from a section to other sections with the same parent.

as_document_extractor(hierarchy: Callable[[Document], List[str]]) → LinkExtractor[Document][source]#

Create a LinkExtractor from Document.

Parameters:: hierarchy (Callable[[Document], List[str]]) – Function that returns the path for the given document.
Returns:: A LinkExtractor[Document] suitable for application to Documents directly or with LinkExtractorTransformer.
Return type:: LinkExtractor[Document]

extract_many(inputs: Iterable[InputT]) → Iterable[Set[Link]]#

Add edges from each input to the corresponding documents.

Parameters:: inputs (Iterable[InputT]) – The input content to extract edges from.
Returns:: Iterable over the set of links extracted from the input.
Return type:: Iterable[Set[Link]]

extract_one(input: List[str]) → Set[Link][source]#

Add edges from each input to the corresponding documents.

Parameters:: input (List[str]) – The input content to extract edges from.
Returns:: Set of links extracted from the input.
Return type:: Set[Link]