{'fraction_non_alphanumeric': 0.023255813953488372, 'fraction_numerical': 0.0, 'mean_word_length': 5.352459016393443, '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}}
A new emergency management dynamic value assessment model based on social media data: a multiphase decision-making perspective

ABSTRACT User-Generated Content (UGC) is becoming a powerful data source to support emergency management. Managers usually face two difficulties in practical emergency management. First, the requirement topics for emergency management are changing over time. Second, the value of the same microblog is changing over different emergency phases. The contributions of this study lie in the following aspects. First, this paper develops a multiphase dynamic assessment model. Second, an idea for the dynamic evaluation of UGC is proposed. Third, this paper presents an effective quantification method to assess the dynamic value of social media data.