{'fraction_non_alphanumeric': 0.034303534303534305, 'fraction_numerical': 0.012474012474012475, 'mean_word_length': 5.878571428571429, '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}}
How Useful Is Usability for Geovisualization?

The goal of geovisualization is discovery and this can be hindered by a number of factors, including inadequate tools, that represent significant obstacles to the geovisualization thought process and require considerable effort to overcome (Dykes, forthcoming). Good software design using methods to support interaction can reduce these, but impediments are increasingly likely as geovisualization embraces, and is applied to, new types of data, phenomena, user and question (Dykes, forthcoming; MacEachren and Kraak, 2001; Slocum et al., 2001). Under these circumstances, the development of effective geovisualization methods requires theory driven (cognitive) research and evaluation. Although usability engineering is a newly emerging facet of Virtual Environments VEs (and geovisualization), user-centred design and evaluation in these areas as a practice still lags behind what is needed (Gabbard et al, 1999).