A. Kröller

Publications
Influence

SPITFIRE: toward a semantic web of things

D. Pfisterer, K. Römer, +11 authors R. Richardson
Computer Science
IEEE Communications Magazine
10 November 2011

The developed world is awash with sensors. However, they are typically locked into unimodal closed systems. To unleash their full potential, access to sensors should be opened such that their data… Expand

Neighborhood-Based Topology Recognition in Sensor Networks

S. Fekete, A. Kröller, D. Pfisterer, S. Fischer, C. Buschmann
Computer Science, Mathematics
ALGOSENSORS
17 May 2004

We consider a crucial aspect of self-organization of a sensor network consisting of a large set of simple sensor nodes with no location hardware and only very limited communication range. Expand

Deterministic boundary recognition and topology extraction for large sensor networks

A. Kröller, S. Fekete, D. Pfisterer, S. Fischer
Computer Science, Mathematics
SODA '06
17 October 2005

Our algorithms work in two stages: boundary recognition and topology extraction. Expand

Shawn: A new approach to simulating wireless sensor networks

A. Kröller, D. Pfisterer, C. Buschmann, S. Fekete, S. Fischer
Computer Science
ArXiv
1 February 2005

We consider the simulation of wireless sensor networks (WSN) using a new approach. Expand

A New Approach for Boundary Recognition in Geometric Sensor Networks

S. Fekete, M. Kaufmann, A. Kröller, K. Zweig
Mathematics, Computer Science
CCCG
1 August 2005

We describe a new approach for dealing with the following central problem in the self-organization of a geometric sensor network: Given a polygonal region R, and a large, dense set of sensor nodes that are scattered uniformly at random in R. Expand

Wiselib: A Generic Algorithm Library for Heterogeneous Sensor Networks

T. Baumgartner, I. Chatzigiannakis, S. Fekete, Christos Koninis, A. Kröller, Apostolos Pyrgelis
Computer Science
EWSN
17 February 2010

We introduce Wiselib, an algorithm library that allows for simple implementations of algorithms onto a large variety of hardware and software. Expand

SpyGlass: a wireless sensor network visualizer

C. Buschmann, D. Pfisterer, S. Fischer, S. Fekete, A. Kröller
Computer Science
SIGBED
2005

We present a modular and extensible visualization framework for wireless sensor networks with a flexible multi-layer mechanism that renders the information on canvas. Expand

Flexible experimentation in wireless sensor networks

G. Coulson, Barry Porter, +11 authors T. Baumgartner
Computer Science
CACM
2012

Virtual testbeds model them by seamlessly integrating physical, simulated, and emulated sensor nodes and radios in real time. Expand

Exact solutions and bounds for general art gallery problems

A. Kröller, T. Baumgartner, S. Fekete, Christiane Schmidt
Mathematics, Computer Science
JEAL
16 January 2010

We present a primal-dual algorithm based on linear programming that provides lower bounds on the necessary number of guards in every step and—in case of convergence and integrality—ends with an optimal solution. Expand

RDF provisioning for the Internet of Things

H. Hasemann, A. Kröller, Max Pagel
Computer Science
3rd IEEE International Conference on the Internet…
1 October 2012

We present the platform-independent Wiselib RDF Provider for embedded IoT devices such as sensor nodes. Expand

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