论文标题
逻辑,概率和动作:一种情况计算观点
Logic, Probability and Action: A Situation Calculus Perspective
论文作者
论文摘要
逻辑和概率的统一是AI的长期关注,更普遍地是科学哲学。从本质上讲,逻辑提供了一种简单的方法来指定必须在每个可能的世界中拥有的属性,并且概率使我们能够进一步量化必须满足财产的世界的重量和比率。为此,已经进行了许多发展,最终在诸如概率关系模型之类的建议中达到了最终形式。尽管这种进展是显着的,但通用的一阶知识表示语言,以推理概率和动态,包括在连续设置中,仍在出现。在本文中,我们调查了与逻辑,概率和行动在微积分中的整合有关的结果,这可以说是最古老,最著名的形式主义之一。然后,我们探讨该语言的简化定理和编程接口。为了具体,这些结果是在认知机器人技术(Reiter及其同事所设想的)的背景下进行的。总体而言,证明结果的优势是这样一种通用语言的优势在于,可以使它们适应任何特殊用途的片段,包括但不限于流行的概率关系模型。
The unification of logic and probability is a long-standing concern in AI, and more generally, in the philosophy of science. In essence, logic provides an easy way to specify properties that must hold in every possible world, and probability allows us to further quantify the weight and ratio of the worlds that must satisfy a property. To that end, numerous developments have been undertaken, culminating in proposals such as probabilistic relational models. While this progress has been notable, a general-purpose first-order knowledge representation language to reason about probabilities and dynamics, including in continuous settings, is still to emerge. In this paper, we survey recent results pertaining to the integration of logic, probability and actions in the situation calculus, which is arguably one of the oldest and most well-known formalisms. We then explore reduction theorems and programming interfaces for the language. These results are motivated in the context of cognitive robotics (as envisioned by Reiter and his colleagues) for the sake of concreteness. Overall, the advantage of proving results for such a general language is that it becomes possible to adapt them to any special-purpose fragment, including but not limited to popular probabilistic relational models.