One of the crucial research issues in the Internet of Things (IoT) is to capture the exact intent of the user during the specification of system goals. It is often the case that there is a mismatch between what the user asks for and what the user actually needs. Existing works have tried to filter data based on user-specified goals. In this article, we present our framework that tries to align the user's intent with system goal specifications based on the data being used. Dynamic contextual goal management in IoT-based systems becomes necessary when users start to use more (or less) data than that extracted to fulfill their earlier specified goals. This would require an augmentation of the goals vis-a-vis the used data and the context in which the data was used. To that end, we present the concept of a contextual goal lattice, where goals and their associated contexts are managed appropriately. This would make it easy for future users to specify their goals more accurately and extract precisely the data that they need. We also demonstrate the creation and maintenance of such a lattice structure in a realistic use case of the smart city domain via an implementation prototype. We see from our evaluations that such dynamic contextual goal management is nontrivial in nature.

中文翻译：

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基于物联网的系统中的动态上下文目标管理


物联网 (IoT) 的关键研究问题之一是在指定系统目标期间捕获用户的准确意图。通常情况下，用户要求的内容与用户实际需要的内容之间存在不匹配。现有的工作尝试根据用户指定的目标来过滤数据。在本文中，我们介绍了我们的框架，该框架试图根据所使用的数据将用户的意图与系统目标规范保持一致。当用户开始使用比提取的数据更多（或更少）的数据来实现其先前指定的目标时，基于物联网的系统中的动态上下文目标管理就变得必要。这将需要针对所使用的数据和使用数据的上下文来增强目标。为此，我们提出了上下文目标格的概念，其中目标及其相关上下文得到适当的管理。这将使未来的用户可以轻松地更准确地指定他们的目标并准确地提取他们需要的数据。我们还通过实现原型在智慧城市领域的实际用例中演示了这种网格结构的创建和维护。从我们的评估中我们看到，这种动态的上下文目标管理本质上是不平凡的。