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Reconciling Simultaneous Evolution of Ground Vehicle Capabilities and Operator Preferences.
| 题名： | Reconciling Simultaneous Evolution of Ground Vehicle Capabilities and Operator Preferences. |
| 作者： | Slon, C.; Pandey, V.; Gorsich, D.; Jayakumar, P. |
| 关键词： | Ground vehicles, Bayesian networks, Random variables, Test and evaluation, Probabilistic models |
| 摘要： | An objective evaluation of ground vehicle performance is a challenging task. This is further exacerbated by the increasing level of autonomy, dynamically changing the roles and capabilities of these vehicles. In the context of decision making involving these vehicles, as the capabilities of the vehicles improve, there is a concurrent change in the preferences of the decision makers operating the vehicles that must be accounted for. Decision based methods are a natural choice when multiple conflicting attributes are present, however, most of the literature focuses on static preferences. In this paper, we provide a sequential Bayesian framework to accommodate time varying preferences. The utility function is considered a stochastic function with the shape parameters themselves being random variables. In the proposed approach, initially the shape parameters model either uncertain preferences or variation in the preferences because of the presence of multiple decision makers. We consider this utility distribution as the prior and update it to a posterior with feedback that can be acquired from actual system use. The framework improves the utility function and thereby the decisions made for the next generation systems, allowing continuous improvement. We present our approach on a ground vehicle selection problem. |
| 报告类型： | 科技报告 |
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