Dynamic modification of cut marks by trampling: temporal assessment through the use of mixed-effect regressions and deep learning methods
Dynamic modification of cut marks by trampling: temporal assessment through the use of mixed-effect regressions and deep learning methods
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通过践踏动态修改切割痕迹：通过使用混合效应回归和深度学习方法进行时间评估
DOI：
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发表时间：
2020
影响因子：
2.2
通讯作者：
M. Domínguez‐Rodrigo
中科院分区：
文献类型：
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作者：
Marcos Pizarro;M. Domínguez‐Rodrigo
被短时间踩踏的割伤痕迹很容易与踩踏痕迹区分开来。在这里，通过结合使用交叉验证Logistic回归、混合效应回归模型和计算机视觉深度学习方法，我们探讨了表征切割痕迹的微观变量的时间和修改率。这项研究强调有必要理解，骨表面修改是受上下文相关变形过程影响的动态攻丝实体。对标记的每一种描述都是由时间决定的。在这里，我们通过实验表明，践踏主要影响微条纹的存在和内部形态，以及标记肩部的剥落和形态。据报道，重叠条纹和微小磨损的存在是踩踏的特征，但不影响切割痕迹的形态。沙质沉积物被发现比砾石沉积物更具研磨性，因为它有可能进入痕迹的凹槽，并更密集地修改它们的墙壁。这里模拟的中等磨损过程没有影响切割痕迹，以至于无法与其他类型的痕迹区分开来。通过与踩踏痕迹的比较，成功地将这两种修饰语分类。
Cut marks exposed to a short period of trampling were easily differentiated from trampling marks. Here, through the combined use of cross-validated logistic regression, mixed-effect regression models and computer vision deep learning methods, we approach the timing and modification rate of the microscopic variables that characterize cut marks. This study emphasizes the need to understand that bone surface modifications are dynamic taphonomic entities subjected to context-dependent morphing processes. Every depiction of a mark is just time-determined. Here, we show through experiments that trampling affected mostly the presence and internal configuration of microstriations, as well as the flaking and the morphology of the shoulder of the mark. The presence of overlapping striae and microabrasion were reported as signatures of trampling which did not affect cut mark morphology. Sandy sediment was found more abrasive than gravel sediment because of its potential to get inside the grooves of marks and modify their walls more intensively. The moderate abrasion process modeled here did not impact cut marks to the point of not being differentiated from other types of marks. A comparison with trampling marks successfully classified both types of modifications.