Martin Bauer

Martin Bauer
NEC Laboratories Europe GmbH

Dr. rer. nat.

About

81
Publications
101,602
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2,003
Citations
Additional affiliations
October 2005 - present
NEC Laboratories Europe
Position
  • Senior Researcher
September 2000 - September 2005
Universität Stuttgart
Position
  • Researcher

Publications

Publications (81)
Article
Full-text available
This article describes the use of digital twins for smart cities, i. e., the Urban Digital Twin (UDTw) concept. It shows how UDTws can be realized using the open source components from the FIWARE ecosystem that are already used in more than 200 cities worldwide. The used NGSI-LD standard is supported by the European Connecting Europe Facility, the...
Article
Full-text available
For the last decade the Smart City concept has been under development, fostered by the growing urbanization of the world’s population and the need to handle the challenges that such a scenario raises. During this time many Smart City projects have been executed–some as proof-of-concept, but a growing number resulting in permanent, production-level...
Preprint
For IoT to reach its full potential, the sharing and reuse of information in different applications and across verticals is of paramount importance. However, there are a plethora of IoT platforms using different representations, protocols and interaction patterns. To address this issue, the Fed4IoT project has developed an IoT virtualization platfo...
Preprint
Full-text available
The ever-increasing acceleration of technology evolution in all fields is rapidly changing the architectures of data-driven systems towards the Internet-of-Things concept. Many general and specific-purpose IoT platforms are already available. This article introduces the capabilities of the FIWARE framework that is transitioning from a research to a...
Research
Full-text available
This paper is co-authored by an informal group of experts from a broad range of backgrounds, all of whom are active in standards groups, consortia, alliances and/or research projects in the Internet of Things (IoT) space. This paper has two objectives: 1) explain the need for semantic interoperability, 2) provide recommendations for semantic int...
Research
Full-text available
This paper is co-authored by an informal group of experts from a broad range of backgrounds, all of whom are active in standards groups, consortia, alliances and/or research projects in the Internet of Things (IoT) space. The idea is to show how IoT systems can be built using semantic technologies, enabling semantic interoperability and thus allo...
Article
Full-text available
The ever-increasing acceleration of technology evolution in all fields is rapidly changing the architectures of data-driven systems toward the Internet-of-Things concept. Many general and specific-purpose IoT platforms are already available. This article introduces the capabilities of the FIWARE platform, which is transitioning from a research to a...
Article
Since the Internet-of-Things (IoT) has been introduced, it is considered as one of the emerging technologies providing great opportunities to many vertical industries. One of the major IoT application areas that gets significant attention is Smart City. Since it is unrealistic to expect full convergence toward a single IoT platform in the near futu...
Conference Paper
Full-text available
Context Information Management (CIM) platforms have tended to rely on mostly hierarchical information models with weak semantics and predefined APIs, falling short of the requirements for interoperation with other platforms and flexibility of data utilization and federation. In order to improve cross-domain federation capabilities for existing CIM...
Chapter
Full-text available
The Internet-of-Things (IoT) [61] has been identified as one of the main pillars of the world’s economies and the technology enabler for the evolution of the societies and for the future developments and improvement of the Internet [4]. A large number of research activities in Europe have been working in this direction i.e. FP7 projects in the cont...
Article
Global IoT services (GIoTS) are combining locally available IoT resources with cloud-based services. They are targeting worldwide services. GIoTS require interoperability between the locally installed heterogeneous IoT systems. Semantic processing is an important technology to enable data mediation as well as knowledge-based processing. This articl...
Research
Full-text available
This paper is co-authored by an informal group of experts from a broad range of backgrounds all of whom are active in standards groups, consortia and/or alliances in the Internet of Things (IoT) space. The ambition is to create mindshare on approaches to semantic interoperability and to actively encourage consensus building on what the co-authors r...
Article
The Internet-of-Things (IoT) provides a great opportunity to many vertical industries because IoT interconnects various devices such as sensors and actuators and collects/processes data from them in order to improve services and reduce costs. As there exists many IoT technologies in the market, global standards and interworking mechanisms are criti...
Conference Paper
Full-text available
The Internet of Things (IoT) is now shaping our cities to make them more connected, convenient, and intelligent. However, this change will highly rely on extracted values and insights from the big data generated by our cities via sensors, devices, and human activities. Many existing studies and projects have been done to make our cities smart, focu...
Chapter
Full-text available
IoT represents the convergence of advances in miniaturization, wireless connectivity, increased data storage capacity and data analytics. Intelligent edge devices detect and measure changes in environmental parameters and are necessary to turn billions of objects into "smart data" generating "things" and their environment. Universal connectivity a...
Conference Paper
In the Internet of Things vision, physical things become part of the Internet and, as a result, the Internet extends into the physical world. Applications start to be aware of the users' environment and users can have mediated interactions with the physical world through the Internet of Things. Within the physical world, the spatial structure, whic...
Patent
A method for protecting a user's privacy, wherein the user operates a communication device capable of processing context and wherein the user provides context information—real context—related to one or more reference context variables to a third party, is characterized in the steps of faking at least one of the one or more reference context variabl...
Chapter
Full-text available
In this chapter we present our IoT Reference Architecture. This IoT Reference Architecture is, among others, designed as a reference for the generation of compliant IoT concrete architectures that are tailored to one’s specific needs. For other usages of the IoT Architectural Reference Model see Chap. 3.
Chapter
Full-text available
Whereas we explained the process of creating an IoT architecture with the support of the IoT ARM in Chap. 6 [Process Chapter] and gave an example how a concrete architecture can be defined based on different models and views of the IoT ARM in Chap. 11 [Concrete Architecture Chapter], we now provide reference manuals with guidelines how to use the I...
Chapter
Full-text available
In this chapter we present our IoT Reference Architecture. This IoT Reference Architecture is, among others, designed as a reference for the generation of compliant IoT concrete architectures that are tailored to one’s specific needs. For other usages of the IoT Architectural Reference Model see Chap. 3.
Chapter
As identified in the previous chapter, IoT-A has created an “Architectural Reference Model” (IoT ARM) as the common ground for the Internet of Things. The core idea is that the IoT ARM provides a common structure and guidelines for dealing with core aspects of developing, using and analysing IoT systems. The first part of this chapter provides a no...
Chapter
Full-text available
As discussed in Sect. 8.2.2 and found in the literature, the functional view of a concrete architecture typically consists of three viewpoints: functional decomposition (viz. the logical structure), interfaces, and behaviour. Despite its significantly more abstract nature, we provide an analysis of these viewpoints for the IoT Reference Architectur...
Conference Paper
By bringing together the physical world of real objects with the virtual world of IT systems, the Internet of Things has the potential to significantly change both the enterprise world as well as society. However, the term is very much hyped and understood differently by different communities, especially because IoT is not a technology as such but...
Article
The explosive growth of the mobile internet calls for scalable infrastructures capable of processing large amounts of mobile data with predictable response times. We have developed a scalable system supporting continuous geoqueries over geo-tagged data streams in the cloud. The experimental results confirm that our system scales, both in the number...
Chapter
This technological chapter provides an overview of how real-world knowledge and context information can be integrated in pervasive advertising applications. Often developers of such applications integrate sensing technologies directly into their application. This has two consequences. First, developers need to learn how to interface, use and manage...
Conference Paper
Full-text available
The Internet of Things envisions a multitude of heterogeneous objects and interactions with the physical environment. The functionalities provided by these objects can be termed as 'real-world services' as they provide a near real-time state of the physical world. A structured, machine-processible approach to provision such real-world services is n...
Conference Paper
Full-text available
Numerous projects in the area of Real-World Internet (RWI), Internet of Things (IoT), and Internet Connected Objects have proposed architectures for the systems they develop. All of these systems are faced with very similar problems in their architecture and design and interoperability among these systems is limited. To address these issues and to...
Conference Paper
Full-text available
Application Platforms and related APIs are becoming the foundations for emerging eco-systems of online applications/services. End-users are more and more choosing devices and services based on the available offers in the respective eco-system. Attracting and retaining application developers and end-users to a networked platform is nowadays more and...
Conference Paper
The integration of the physical world into the digital world is an important requirement for a Future Internet, as an increasing number of services and applications are relying on real world information and interaction capabilities. Sensor and actuator networks (SAN) are the current means of interacting with the real world although most of the curr...
Conference Paper
Full-text available
The Internet is expanding to reach the real world, integrating the physical world into the digital world in what is called the Real World Internet (RWI). Sensor and actuator networks deployed all over the Internet will play the role of collecting sensor data and context information from the physical world and integrating it into the future RWI. In...
Conference Paper
Integrating Wireless Sensor & Actuator Networks (WS&AN) on a large scale allows horizontal applications to access real-world information in real-time and changing the state of the real world, thus providing the basis for the Real World Internet. In this paper we present a resource model that semantically describes sensor, actuator and processing re...
Chapter
The development of new research paradigms is usually not supported by a proof-of-concept that helps to showcase the potential impact of the research concept behind. Personal Networking is an emerging concept which combines pervasive computing and strong user focus. The idea is that the user’s personal devices organize themselves in a secure and pri...
Chapter
Despite the inaccuracy of long-term technology forecasts there seems to be a strong consensus that new technologies should be centred on the user, improving the quality of life and adapting to the individual, without the need to be aware of the technical details. The environment needs to become smarter, more responsive, and more accommodating to th...
Conference Paper
Sensor and actuator networks (SAN) will play a key role in delivering information about and enable interactions with the physical world for next generations of highly autonomous and adaptive Internet services and applications. Current SAN deployments are still low in numbers and represent heterogeneous, vertically closed solutions. True world aware...
Article
In this article, we will highlight how IMS can provide an excellent technological platform to overcome these limitations. We demonstrate that IMS is a suitable platform for developing a highly scalable framework for unified access of information stemming from globally distributed and heterogeneous sensor networks. Overall, such a framework will fac...
Article
Full-text available
In this paper, we present a user profile definition scheme featuring context awareness. Though the scheme has been designed to meet the needs of web applications deployed over heterogeneous devices, emphasis is given in the deployment of the profile scheme over Personal Networks (PNs), as the personalization of the deployed applications and service...
Article
Full-text available
The topic of this dissertation is the observation of physical world events through a distributed world model. So the events of interest occur in the world we live in. The basis for their observation is a model of the relevant aspects of the physical world. These include more static aspects like geometric models of stationary objects, e.g., houses a...
Conference Paper
In this paper we present a context-management middleware for Next Generation Networks (NGN). Our middleware, called ICE, is based on the concept of Context Sessions. In contrast to earlier work in context management, we apply NGN design principles to context management and separate signalling from context exchange. We believe that ICE provides an i...
Conference Paper
In this paper we introduce a high level architecture for a context management system for personal networks (PN). The main objective of the context management framework (CMF) described in this paper is to support the interactions between context information sources and context aware components, services and applications in a generic manner, independ...
Conference Paper
In this paper we investigate the observation of physical world events, i.e. events that occur in the physical world, and are observed through model data, part of which is collected by sensors. The physical world events of interest here are those that are suitable for proactively supporting mobile users. This means that they have to be on the same h...
Conference Paper
In this paper, we address the data management aspect of large-scale pervasive computing systems. We aim at building an infrastructure that simultaneously supports many kinds of context-aware applications, ranging from room level up to nation level. This all-embracing approach gives rise to synergetic benefits like data reuse and sensor sharing. We...
Article
Full-text available
The management of mobile objects like cars, persons, or workpieces in a factory is an important task in many context-aware environments. So far, most solutions can either cope with many small objects (few properties) or with a limited number of complex objects in a centralized way. In this paper, we face the challenge of managing a large number of...
Conference Paper
In this paper we propose an approach for observing real-world events through a distributed model providing dynamic data about the state of the world. Typical examples for real-world events are spatial events, i.e. events that occur when a user enters a certain spatial relationship with other users or his environment. To the best of our knowledge, t...
Article
58 pages This document is a technical report of the interdisciplinary research project Nexus which is a Center of Excellence that is carried out at the University of Stuttgart. It is targeted at all interested readers who wish to delve deeper into the interfaces of the Nexus platform and the underlying architecture to get a better understanding of...
Article
Full-text available
Companies want to provide their customers with highly individualized products so as to gain sustainable advantages over their competitors. The high degree of individualization has also deep effects on the production: it demands a vast amount of highly specialized tools for certain steps in the production process and a frequent changing of machinery...
Conference Paper
In the vision of pervasive computing smart everyday objects communicate and cooperate to provide services and information to users. Interoperability between devices and applications not only requires common protocols but also common context management. In this paper we discuss requirements on the context management based on the Georgia Tech's Aware...
Article
Full-text available
110 pages This technical report presents the results of the project "Event Management for Mobile Users", a research cooperation between Universität Stuttgart and Microsoft. In Vienna, Microsoft chief executive Bill Gates recently expressed his vision of a seamless interaction of different computing devices, from PC to mobile phone, that proactively...
Article
Die Entwicklungen im Bereich der Sensortechnologie erlauben eine zunehmende Miniaturisierung von Sensorplattformen. Diese können in Alltagsgegenstände integriert werden und Umgebungsinformationen durch drahtlose Kommunikation bereitstellen. Führt man die erfassten Sensordaten zusammen und ordnet diese Informationen Orten in räumlichen Modellen zu,...
Article
Full-text available
Ziel des Sonderforschungsbereichs 627 "Umgebungsmodelle für mobile kontextbezogene Systeme" ist die Erforschung von Methoden und Verfahren für die Definition, die Verwaltung und die Nutzung von digitalen Umgebungsmodellen. Existierende Informationsräume werden mit komplexen Modellen der realen Welt verschränkt und erlauben so neuartige Anwendungen....
Article
Full-text available
The rapid development of mobile communication networks and the availability of miniaturized and inexpensive sensor technology allow for the development of multifunctional mobile devices that are able to collect and communicate context information. We also currently see a clear trend towards the integration of embedded systems including sensors into...
Conference Paper
Sensing the state of the environment is an important source for context-aware applications. Several approaches exist to provide sensor information to mobile application nodes. As the extreme cases we have pure infrastructures and pure ad hoc networks. In order to allow sensor platforms to serve both of these approaches, we have designed a universal...
Article
Zusammenfassung Die Entwicklungen im Bereich der Sensortechnologie erlauben eine zunehmende Miniaturisierung von Sensorplattformen. Diese können in Alltagsgegenstände integriert werden und Umgebungsinformationen durch drahtlose Kommunikation bereitstellen. Führt man die erfassten Sensordaten zusammen und ordnet diesen Informationen Orten in räumlic...
Article
Die rasant fortschreitende Entwicklung von Sensorsystemen und drahtloser Kommunikation führt zu multifunktionalen mobilen Endgeräten, die in der Lage sind, Kontextinformation zu erfassen, zu verarbeiten und zu kommunizieren. Durch die extreme Miniaturisierung eingebetteter Systeme entstehen außerdem „intelligente“ Alltagsgegenstände, die in Netzwer...
Article
Die rasch fortschreitende Entwicklung kleiner mobiler Geräte sowie mit eingebetteter Sensorik und Aktorik versehener Alltagsgegenstände ermöglicht eine Vielzahl neuartiger Anwendungen. Die Fähigkeit zur drahtlosen Kommunikation und zur Positionsbestimmung bereitet die Basis lokations- und kontextbezogener Systeme, die seit einigen Jahren im Projekt...
Article
Full-text available
Location models are crucial to location-aware applications. In this paper we present two approaches for modeling location information in an infrastructure-based and an ad hoc network based application scenario. From these approaches we deduce requirements for a general location modeling language for ubiquitous computing.
Article
Full-text available
People on the move are typically interested in information with respect to their proximity. Location-based services in general supply users with information about their proximity typically relying on an infrastructure storing the information and tracking the mobile objects, i.e. users. In this paper we present an approach for spontaneous, i.e. ad h...
Conference Paper
In this paper, the event concept is applied to support the interaction between mobile users and distributed location-aware systems. Taking a number of examples, the components of an event specification language are derived that can be used beyond the domain of location-aware systems.
Article
When looking at typical Nexus scenarios, we observe that they are very different from those we find in traditional desktop computing scenarios. The focus of the user is often on other tasks, e.g. walking around, talking to other people, trying to find something etc. In order to optimally support the user in these situations, the application has to...
Article
If we look at the means of communication that human beings use, we find that there are different categories of how we determine the receiver of a message. If we speak, everyone who is at the same location will get the message. If we write a letter, we address someone specific and only that person will get the message. Finally, if we publish somethi...
Article
Managing the location information of mobile objects is an important aspect of location-aware applications. Because of their highly dynamic nature, there is a special component inside the Nexus platform that is designed especially for this task. The functionality and architecture of the Nexus Location Service are described in this article.
Article
Full-text available
Event-basierte Kommunikation ist in vielen Anwendungsgebieten im Computerbereich verbreitet. Existierende Event-Management Systeme beschränken sich auf die Auslieferung von Event Benachrichtigungen an Gruppen von Empfängern, die physikalisch mit dem Netzwerk verbunden sind. In den meisten Fällen wird das Konzept eines "Event Erzeugers" zugrunde gel...
Article
A lot of information is interesting in a local context, e.g. the bus schedule of the local bus station or the location and opening hours of the closest supermarket. Therefore, location-aware access to information and services is an important feature of applications for mobile and ubiquitous devices. Most existing location-aware systems have been de...