Filter a Field

This module demonstrates how to extract the top terms from a specified field in a database using the TopTermsExtractor class. The process involves configuring the field, search parameters, and database parameters.

Example

>>> from pprint import pprint
>>> from techminer2.database.field_extractors import TopTermsExtractor

>>> # Creates, configures, and runs the extractor
>>> extractor = (
...     TopTermsExtractor()
...     #
...     # FIELD:
...     .with_field("raw_author_keywords")
...     #
...     # SEARCH:
...     .having_terms_in_top(10)
...     .having_terms_ordered_by("OCC")
...     .having_term_occurrences_between(None, None)
...     .having_term_citations_between(None, None)
...     .having_terms_in(None)
...     #
...     # DATABASE:
...     .where_root_directory_is("example/")
...     .where_database_is("main")
...     .where_record_years_range_is(None, None)
...     .where_record_citations_range_is(None, None)
... )
>>> terms = extractor.run()

>>> # Print the first 10 extracted terms
>>> pprint(terms[:10])
['BUSINESS_MODELS',
 'CASE_STUDY',
 'CROWDFUNDING',
 'CYBER_SECURITY',
 'FINANCIAL_INCLUSION',
 'FINANCIAL_SERVICES',
 'FINANCIAL_TECHNOLOGY',
 'FINTECH',
 'INNOVATION',
 'MARKETPLACE_LENDING']

This example shows how to extract the top terms from the “raw_author_keywords” field in the database based on the specified parameters. The output includes the first 10 extracted terms.