SGER: Real-Time Spatio-Temporal Databases in Support of Human Motor Skills

本研究的目的是探讨人类运动技能及其在时空资料库管理系统中的表现。所涉及的挑战是多方面的。首先，捕获的数据是连续的媒体，必须及时渲染以模拟运动。如果系统在没有特殊预防措施的情况下以比其预先指定的速率更慢的速率传送数据（例如，预取）时，用户可能观察到导致不期望的行为的逻辑错误，例如，用筷子时，一根或两根筷子可能会掉出位置。第二，肢体的运动-比如手-在进行相同的活动时，在多次重复该活动时略有不同。第一个挑战的方法是探索实时时空数据库管理系统的设计和实现，表示活动作为一个多层次的介绍。解决第二个问题的方法是研究“极限包络”（EoL），以捕捉运动的本质。此外，本研究致力于开发一个框架，检测时空模式，代表有关的物理约束，管理运动的假设。该项目的结果将推进支持触觉设备的实时时空数据库。这是一项高风险的研究，因为它跨越多个领域，有可能成为一门新学科。如果成功的话，可以预期会有很高的回报，因为其结果将对医疗保健、教育和娱乐等广泛领域的应用产生影响。

The goal of this research project is to investigate human motor skills and their representation in a spatio-temporal database management system. The challenges involved are multi-faceted. First, the captured data is continuous media and must be rendered in a timely manner in order to simulate a movement. If a system delivers the data at a slower rate than its pre-specified rate without special precautions (e.g., prefetching), the user might observe logical errors that result in undesirable behavior, e.g., with chop-sticks, either one or both sticks might fall out of place. Second, the movement of a limb -- say a hand -- when performing the same activity is slightly different across multiple repetitions of that activity. The approach to the first challenge is to explore design and implementation of real-time spatio-temporal database management systems that represent an activity as a multi-level presentation. The approach to the second problem is to investigate "Envelope of Limits" (EoL) to capture the essence of a movement. In addition, this research strives to develop a framework that detects spatio-temporal patterns that represent hypotheses about the physical constraints that govern movements. The results of this project will advance real-time spatio-temporal databases in support of haptic devices. This is a high-risk research, because it spans multiple fields, with a potential to emerge as a new discipline. If successful, a high payoff can be expected, as the results will have an impact on applications in broad areas such as health-care, education, and entertainment.