{'fraction_non_alphanumeric': 0.025525525525525526, 'fraction_numerical': 0.0, 'mean_word_length': 5.2924528301886795, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Meta-information Mechanism and Variable Precision Rough Set Model

Variable Precision Rough Set Model (VPRSM) is a famous extension of the rough set theory. In order to provide a suitable basis for implementation of many existing rough set methods in a distributed data environment, a meta-information mechanism is introduced. Since data integration is a costly process, meta-information integration is used instead. Many concepts of the VPRSM will be obtained from meta-information mechanism. Therefore, many existing methods of VPRSM can be implemented efficiently and effectively on the basis of meta-information, and take advantage of meta-information mechanism.