Auflistung nach Schlagwort "Situation awareness"
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- ZeitschriftenartikelSemantic Technologies for Situation Awareness(KI - Künstliche Intelligenz: Vol. 34, No. 4, 2020) Baader, Franz; Borgwardt, Stefan; Koopmann, Patrick; Thost, Veronika; Turhan, Anni-YasminThe project “Semantic Technologies for Situation Awareness” was concerned with detecting certain critical situations from data obtained by observing a complex hard- and software system, in order to trigger actions that allow this system to save energy. The general idea was to formalize situations as ontology-mediated queries, but in order to express the relevant situations, both the employed ontology language and the query language had to be extended. In this paper we sketch the general approach and then concentrate on reporting the formal results obtained for reasoning in these extensions, but do not describe the application that triggered these extensions in detail.
- ZeitschriftenartikelSupporting Situation Awareness in Spatio-Temporal Databases(Datenbank-Spektrum: Vol. 16, No. 3, 2016) Behrend, Andreas; Schmiegelt, Philip; Dohr, AndreasSituation awareness refers to the capability of systems to perceive an existing or predicted context that determines the values of variables in a changing environment. Despite the enhanced support for managing temporal data, current database systems still lack mechanisms for handling highly dynamic situations in which data may change frequently. We present first results from an ongoing research project investigating these missing database features. In particular, we identify (i) the requirements for representing complex spatio-temporal data, (ii) the reasoning capabilities needed for detecting valid relationships between situations, and (iii) the operators necessary for supporting situation-based reasoning. Our investigations are based on a new perception concept, which comprises interval timestamped data derived from observed events and processed using the sequenced semantics. Perceptions provide a high level (and qualitative) description of past and current situations, complemented by projections into the future.
- ZeitschriftenartikelSymbol Grounding as Social, Situated Construction of Meaning in Human-Robot Interaction(KI - Künstliche Intelligenz: Vol. 27, No. 2, 2013) Kruijff, Geert-Jan M.The paper views the issue of “symbol grounding” from the viewpoint of the construction of meaning between humans and robots, in the context of a collaborative activity. This concerns a core aspect of the formation of common ground: The construction of meaning between actors as a conceptual representation which is believed to be mutually understood as referring to a particular aspect of reality. The problem in this construction is that experience is inherently subjective—and more specifically, humans and robots experience and understand reality fundamentally differently. There is an inherent asymmetry between the actors involved. The paper focuses on how this asymmetry can be reflected logically, and particularly in the underlying model theory. The point is to make it possible for a robot to reason explicitly both about such asymmetry in understanding, consider possibilities for alignment to deal with it, and establish (from its viewpoint) a level of intersubjective or mutual understanding. Key to the approach taken in the paper is to consider conceptual representations to be formulas over propositions which are based in proofs, as reasoned explanations of experience. This shifts the focus from a notion of “truth” to a notion of judgment—judgments which can be subjectively right and still intersubjectively wrong (faultless disagreement), and which can evolve over time (updates, revision). The result is an approach which accommodates both asymmetric agency and social sentience, modelling symbol grounding in human-robot interaction as social, situated construction over time.
- ZeitschriftenartikelThe Impact of Process Visibility on Process Performance(Business & Information Systems Engineering: Vol. 58, No. 1, 2016) Berner, Martin; Augustine, Jino; Maedche, AlexanderSuccessful monitoring is essential for managing security-critical or business-critical processes. The paper seeks to understand and empirically evaluate benefits of the BPM use case “monitor” in the context of Operations Control Centers (OCCs). OCCs create visibility about critical events and statuses in very sensitive processes. In IT Service Management (ITSM) they support the event management process with real-time monitoring and event analysis of critical systems in complex system landscapes. This special focus of OCCs on visibility is a promising context to study fundamentals of process visibility. The paper develops a Process Monitoring Benefits Framework that draws on the Situation Awareness Theory and the Theory of Constraints. The authors conceptualize process visibility and suggest that it is positively related to process performance. A multiple case study in seven organizations is carried out to examine the framework and its propositions. The case study indicates that the impact of process visibility on process performance is mediated by the situation awareness of the process participants as well as the identification of bottlenecks in processes. Moreover, factors are identified that potentially influence process visibility outcome – namely continuous improvement culture, outsourcing quality, and maturity of the software tool used for monitoring.