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Article
Open AccessProject VoLL-KI
“Learning from Learners” (“Von Lernenden Lernen”, “VoLL-KI ” for short) is a is collaborative research project with the goal of creating a practical toolbox of instruments at different levels of abstraction to...
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Article
One DB Does Not Fit It All: Teaching the Differences in Advanced Database Systems
In this article we report on our experience with teaching differences that exist between relational and non-relational data models. We present results of an evaluation of a practical course in which students a...
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Article
Open AccessData-sharing markets for integrating IoT data processing functionalities
The recent evolution of the Internet of Things into a cyber-physical reality has spawned various challenges from a data management perspective. In addition, IoT platform designers are faced with another set of...
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Article
Datenbanken und Information Retrieval an der Universität Bamberg
In diesem Beitrag werden zwei Lehrstühle der Universität Bamberg vorgestellt, die in den Themenfeldern Datenbanken und Information Retrieval forschen und lehren. Dabei wird ein Überblick über das Umfeld, die a...
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Article
Semantic Data Management for Experimental Manufacturing Technologies
Experimental manufacturing technologies play a significant role in improving production processes. For example, the microwave assisted manufacturing of composites can save energy and reduce turn-around times c...
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Article
Living Lab Bamberg: an infrastructure to explore smart city research challenges in the wild
The growing number of smart technologies for ubiquitous sensing and interaction of computer systems and the physical environment offer many opportunities for more efficient usage of energy and other resources ...
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Article
Challenges and Design Goals for an Architecture of a Privacy-preserving Smart City Lab
In the domain of so-called smart cities, ICT technologies play a vital role to improve life quality and resource efficiency in future cities. Many smart city applications depend on sensor data – live data for ...
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Article
Editorial
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Chapter and Conference Paper
Simulation einer Stadt zur Erzeugung virtueller Sensordaten für Smart City Anwendungen
Smart-City-Anwendungen integrieren Livedaten aus verschiedenen Bereichen – wie Verkehr, Energie oder Umweltfaktoren – um diese für Entscheider, Bürger oder Unternehmen aufbereitet zur Verfügung zu stellen. Für...
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Chapter and Conference Paper
Data, Context, Situation: On the Usefulness of Semantic Layers for Designing Context-Aware Systems
Context-aware applications adapt their behavior according to the current situation of their user or their (often physical) environment. This adaptation could be the change of the user interface, the performanc...
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Article
Editorial
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Article
Scheduling von Datenströmen auf der Basis von Service Level Agreements
Software as a Service (SaaS) stellt einen Ansatz zur Bereitstellung standardisierbarer Software über das Internet dar. Auch die Verarbeitungskapazität von Datenstrommanagementsystemen (DSMS) kann auf diese Wei...
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Chapter and Conference Paper
Approximating Complex Sensor Quality Using Failure Probability Intervals
Many pervasive applications depend on data from sensors that are placed in the applications physical environment. In these applications, the quality of the sensor data—e.g., its accuracy or a failed object det...
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Chapter
Data Stream Management in the AAL: Universal and Flexible Preprocessing of Continuous Sensor Data
Continuous and potentially infinite sequences of data—so-called data streams—are processed in many applications of Ambient Assisted Living (AAL). The preprocessing of such high frequent data is normally done b...
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Chapter and Conference Paper
Converting Conversation Protocols Using an XML Based Differential Behavioral Model
Conversation protocols are used to communicate between information systems, with services, with sensors, or with human beings. As many of these protocols share similar application purposes, the protocols also ...
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Article
A physical operator algebra for prioritized elements in data streams
Data stream management systems are a natural choice to efficiently process continuous queries over high volume data streams, e.g., to monitor sensor data or transaction streams. An immediate reaction on de...
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Chapter and Conference Paper
Prediction Functions in Bi-temporal Datastreams
Modern datastream management system (DSMS) assume sensor measurements to be constant valued until an update is measured. They do not consider continuously changing measurement values, although a lot of real wo...
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Article
Design and implementation of a domain-aware data model for pervasive context information
We introduce a data model for a context-management middleware that enables context-aware and pervasive computing applications to transparently access available data providers and that effectively combines ...
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Chapter and Conference Paper
Tool Support for the Design and Management of Spatial Context Models
A central task in the development of context-aware applications is the modeling and management of complex context information. In this paper, we present the NexusEditor, which eases this task by providing a gr...
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Chapter and Conference Paper
Context-Aware Mashups for Mobile Devices
With the Web 2.0 trend and its participation of end-users more and more data and information services are online accessible, such as web sites, Wikis, or web services. So-called mashups—web applications that i...
