Theme to Documents Mapping

Example

>>> from sklearn.decomposition import LatentDirichletAllocation
>>> lda = LatentDirichletAllocation(
...     n_components=10,
...     learning_decay=0.7,
...     learning_offset=50.0,
...     max_iter=10,
...     batch_size=128,
...     evaluate_every=-1,
...     perp_tol=0.1,
...     mean_change_tol=0.001,
...     max_doc_update_iter=100,
...     random_state=0,
... )
>>> from techminer2.packages.topic_modeling.user import ThemeToDocumentsMapping
>>> mapping = (
...     ThemeToDocumentsMapping()
...     #
...     # FIELD:
...     .with_field("raw_descriptors")
...     .having_terms_in_top(50)
...     .having_terms_ordered_by("OCC")
...     .having_term_occurrences_between(None, None)
...     .having_term_citations_between(None, None)
...     .having_terms_in(None)
...     #
...     # DECOMPOSITION:
...     .using_decomposition_algorithm(lda)
...     .using_top_terms_by_theme(5)
...     #
...     # TFIDF:
...     .using_binary_term_frequencies(False)
...     .using_row_normalization(None)
...     .using_idf_reweighting(False)
...     .using_idf_weights_smoothing(False)
...     .using_sublinear_tf_scaling(False)
...     #
...     #
...     # DATABASE:
...     .where_root_directory_is("examples/fintech/")
...     .where_database_is("main")
...     .where_record_years_range_is(None, None)
...     .where_record_citations_range_is(None, None)
...     .where_records_match(None)
...     #
...     .run()
... )
>>> import pprint
>>> pprint.pprint(mapping)  
{0: ['Anagnostopoulos I., 2018, J ECON BUS, V100, P7',
     'Belanche D., 2019, IND MANAGE DATA SYS, V119, P1411',
     'Dorfleitner G., 2017, FINTECH IN GER, P1',
     'Du W.D., 2019, J STRATEGIC INFORM SYST, V28, P50',
     'Jagtiani J., 2018, J ECON BUS, V100, P43',
     'Lee I., 2018, BUS HORIZ, V61, P35',
     'Leong C., 2017, INT J INF MANAGE, V37, P92',
     'Magnuson W., 2018, VANDERBILT LAW REV, V71, P1167'],
 1: ['Brummer C., 2019, GEORGET LAW J, V107, P235',
     'Das S.R., 2019, FINANC MANAGE, V48, P981',
     'Gozman D., 2018, J MANAGE INF SYST, V35, P145',
...