基于能量最优控制的跳跃奥恩斯坦-乌伦贝克桥及其自激扩展
A Jump Ornstein-Uhlenbeck Bridge Based on Energy-optimal Control and Its Self-exciting Extension
AI总结:
该研究基于带奇异终端条件的线性二次控制,构建了由谱正从属过程驱动、具显式表达式的跳跃奥恩斯坦-乌伦贝克桥及其自激扩展,验证了终端条件并应用于真实数据集的径流调节问题。
摘要:
我们研究了一类由谱正从属过程驱动的奥恩斯坦-乌伦贝克桥(Ornstein-Uhlenbeck bridge)。我们的构建基于带奇异终端条件的线性二次(Linear-Quadratic)控制。我们提出的奥恩斯坦-乌伦贝克桥被表示为所得最优控制过程的极限,且被证明具有显式表达式。我们还考虑了其带自激特性的扩展。我们通过解析和数值两种方式验证了所得过程满足终端条件。这些方法还被应用于基于真实数据集的径流调节问题。
英文摘要:
We study a version of the Ornstein-Uhlenbeck bridge driven by a spectrally-positive subordinator. Our formulation is based on a Linear-Quadratic control subject to a singular terminal condition. The Ornstein-Uhlenbeck bridge, we develop, is written as a limit of the obtained optimally controlled processes, and is shown to admit an explicit expression. Its extension with self-excitement is also considered. The terminal condition is confirmed to be satisfied by the obtained process both analytically and numerically. The methods are also applied to a streamflow regulation problem using a real-life dataset.
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