Term Neighborhood Extractor

This node extracts the neighborhood for each term of the document. The neighborhood is defined by the N left and N right neighbors that can be set in the dialog. The neighbors can be extracted as term cells or string cells. Each neighbor is stored in a column, however it's also possible to store the right and left neighbors in a collection cell. Additionally, there is an option to extract the sentence in which the term occurs.

Options

Document column: Select the document column that is used for term neighborhood extraction.
Neighbors to extract: The number of (left/right) neighbors to extract.
Extract sentences: If checked, the second column contains the sentence of the document containing the term.
Neighbor Terms as Strings: If checked, neighbors will be extracted as String columns, otherwise as Term columns.
Neighbors as Collection: If checked, the neighbors will be all encapsulated in a collection (one collection for left neighbors, one collection for right neighbors), otherwise there will be one column for each neighbor. If no neighbor exists, the value is a missing value.

Input Ports

: The input table containing the documents.

Output Ports

: An output table containing documents, terms and their N neighbors.

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