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               本研究仍存在一些局限性:(1)研究仅比较了 RF                            Spatiotemporal gait characteristics associated with cognitive
           和 GBDT 模型,虽然分类效果不差,但这远远不够,将                             impairment:a multicenter cross-sectional study,the intercontinental
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           学习的准确性;(3)本研究仅采集了步态周期、运动                                cognitive impairment,and Alzheimer's disease:a cross-sectional
           学参数和时间 - 空间参数 3 类,步态参数涉及的领域不                            study[J]. Experimental Gerontology,2020,131:110816. DOI:
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