You will be presented with a citation segment from the section of a research paper. Classify the intent behind this citation by choosing from one of the following categories:

- Method: Cites the paper for its methodology or procedure.
- Background: Cites the paper to provide background information.
- Result: Cites the paper for its findings or results.

Your answer should be a single word from the following list of options: ["Method", "Background", "Result"]. Do not include any other text in your response.

Citation sentence:

…factor analysis and independent real factor analysis (or noisy ICA), together with the corresponding criteria for the number of independent factors (Xu, 1998b, 2000, 2001a); as well as (e) several extensions of LMSER learning and the corresponding criteria for the number of hidden units (Xu, 1993,…
Background