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Band 34 (2011)

https://dl.gi.de/handle/20.500.12116/16035
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Auflistung Band 34 (2011) nach Erscheinungsdatum

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  • Zeitschriftenartikel
    Informatik-Erwerbsbiografien
    (Informatik-Spektrum: Vol. 34, No. 4, 2011) Bode, Arndt
  • Zeitschriftenartikel
    AI Approaches to Cognitive Systems – The Example of Spatial Cognition
    (Informatik-Spektrum: Vol. 34, No. 5, 2011) Nebel, Bernhard; Freksa, Christian
    Cognitive abilities can be studied by observing and interpreting natural systems or by developing artificial systems that interact with their environments in intelligent ways. Cognitive systems research connects both approaches. Typically, human requirements are in the focus of interest and systems are developed to interact with humans in as natural a way as possible. To achieve this goal, a deep understanding of human cognition is required. The present paper focuses on spatial cognition, i. e. the ability to perceive and conceive spatial environments and solve spatial tasks intelligently. It discusses artificial intelligence approaches to spatial cognition for supporting human activities.
  • Zeitschriftenartikel
    Planning in the Real World
    (Informatik-Spektrum: Vol. 34, No. 5, 2011) Biundo, Susanne; Bidot, Julien; Schattenberg, Bernd
    In this article, we describe how real world planning problems can be solved by employing Artificial Intelligence planning techniques. We introduce the paradigm of hybrid planning, which is particularly suited for applications where plans are not intended to be automatically executed by systems, but are made for humans. Hybrid planning combines hierarchical planning – the stepwise refinement of complex tasks – with explicit reasoning about causal dependencies between actions, thereby reflecting exactly the kinds of reasoning humans perform when developing plans. We show how plans are generated and how failed plans are repaired in a way that guarantees stability. Our illustrating examples are taken from a domain model for disaster relief missions enforced upon extensive floods. Finally, we present a tool to support the challenging task of constructing planning domain models.The article ends with an overview of a wide varity of actual planning applications and outlines further such in the area of cognitive technical systems.
  • Zeitschriftenartikel
    Relationale Cloud-Datenbanken, ein aktueller Vergleich
    (Informatik-Spektrum: Vol. 34, No. 1, 2011) Bröcker, René; Tiemeyer, Johannes
    Als wichtiger Bestandteil von Anwendungssystemen sind Datenbanken in der IT allgegenwärtig. Die zunehmende Bedeutung des Cloud Computing lässt auch in diesem Bereich neue Produkte und Dienstleistungen entstehen, die eine Verlagerung von Datenbanken in die Cloud ermöglichen. Der vorliegende Artikel zeigt die Gegebenheiten bei dem Betrieb einer relationalen Cloud-Datenbank auf und wendet diese in einem Vergleich abschließend an. Dabei werden mit den relationalen Datenbankdiensten von Microsoft SQL Azure und Amazon RDS die derzeit dominierenden Alternativen betrachtet und auf ihre Tauglichkeit für den Praxiseinsatz hin untersucht.
  • Zeitschriftenartikel
    Perspektiven
    (Informatik-Spektrum: Vol. 34, No. 3, 2011) Bode, Arndt; Engesser, Hermann
  • Zeitschriftenartikel
    Mitteilungen der Gesellschaft für Informatik 212. Folge (Fortsetzung)
    (Informatik-Spektrum: Vol. 34, No. 6, 2011)
  • Zeitschriftenartikel
    Sozio-Informatik
    (Informatik-Spektrum: Vol. 34, No. 2, 2011) Rohde, Markus; Wulf, Volker
  • Zeitschriftenartikel
    OpenEmpowerment
    (Informatik-Spektrum: Vol. 34, No. 6, 2011) Dueck, Gunter
  • Zeitschriftenartikel
    What’s new in Description Logics
    (Informatik-Spektrum: Vol. 34, No. 5, 2011) Baader, Franz
    Mainstream research in Description Logics (DLs) until recently concentrated on increasing the expressive power of the employed description language while keeping standard inference problems like subsumption and instance manageable in the sense that highly optimized reasoning procedures for them behave well in practice. One of the main successes of this line of research was the adoption of OWL DL, which is based on an expressive DL, as the standard ontology language for the Semantic Web.More recently, there has been a growing interest in more light-weight DLs, and in other kinds of inference problems, mainly triggered by need in applications with large-scale ontologies. In this paper, we first review the DL research leading to the very expressive DLs with practical inference procedures underlying OWL, and then sketch the recent development of light-weight DLs and novel inference procedures.
  • Zeitschriftenartikel
    Automotivierte IT
    (Informatik-Spektrum: Vol. 34, No. 1, 2011) Dueck, Gunter