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Julian Ohrt

Picture of Julian Ohrt
Dr.-Ing. Julian Ohrt
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In May 2011 I received my Master's degree in Computer Engineering at Hamburg University of Technology. From June 2011 until September 2015 I was working as a research assistant at the Institute of Telematics.

Publications

Julian Ohrt and Volker Turau. Building-Linked Location-Based Instantaneous Services System. In Proceedings of the 5th International Conference on Ambient Systems, Networks and Technologies (ANT2014), June 2014, pp. 445–452. Hasselt, Belgium. Acceptance rate 36%.
[BibTeX] [Abstract] [DOI]
@InProceedings{Telematik_Ohrt_2014_BLISS, author = {Julian Ohrt and Volker Turau}, title = {Building-Linked Location-Based Instantaneous Services System}, booktitle = {Proceedings of the 5th International Conference on Ambient Systems, Networks and Technologies (ANT2014)}, pages = {445-452}, day = {4}, month = jun, year = 2014, location = {Hasselt, Belgium}, note = {Acceptance rate 36%}, }
Abstract: For services which are meant to be used mainly inside buildings, a distribution using global app stores is inappropriate. Instead this work presents a provisioning system (BLISS) for building-linked location-based services. The multi-purpose application MultiApp implements the client-side of the BLISS specification. When a user enters a building, MultiApp instantaneously detects available services and allows to install and execute them. The client part of services is executed within the MultiApp environment and can provide functionalities similar to those offered by native applications. BLISS facilitates developing indoor location-based services by providing bi-directional communication between service providers and clients.
Julian Ohrt and Volker Turau. Simple Indoor Routing on SVG Maps. In Proceedings of the workshop Location-based services for Indoor Smart Environments (LISE'13) hosted at the 4th International Conference on Indoor Positioning and Indoor Navigation (IPIN'13), October 2013. Montbéliard, France.
[BibTeX] [Abstract] [PDF]
@InProceedings{Telematik_Ohrt_2013_SvgMaps, author = {Julian Ohrt and Volker Turau}, title = {Simple Indoor Routing on SVG Maps}, booktitle = {Proceedings of the workshop Location-based services for Indoor Smart Environments (LISE'13) hosted at the 4th International Conference on Indoor Positioning and Indoor Navigation (IPIN'13)}, day = {28}, month = oct, year = 2013, location = {Montbéliard, France}, }
Abstract: Until now no general applicable technology for indoor localization has prevailed. As a result, there are many approaches to model buildings for indoor navigation being developed. Most of them are very expensive to apply. This work presents a tool for graphically adding navigational data to existing maps. It further demonstrates how to use the created map for routing as pure web application which can be combined with any positioning technology. As SVG is used as format for the map, it analyses performance of rendering and manipulating SVGs on different devices. We show that even large maps can be displayed on current mobile Android devices sufficiently fast for usage as indoor navigation application.
Julian Ohrt and Volker Turau. Cross-Platform Development Tools for Smartphone Applications. IEEE Computer, 45(9):72–79, September 2012.
[BibTeX] [Abstract] [DOI] [PDF]
@Article{Telematik_C-M_2012_SurveyOnXMTs, author = {Julian Ohrt and Volker Turau}, title = {Cross-Platform Development Tools for Smartphone Applications}, pages = {72-79}, journal = {IEEE Computer}, volume = {45}, number = {9}, month = sep, year = 2012, }
Abstract: Developers can use cross-platform mobile development tools to create smartphone apps that meet user expectations, but existing XMTs need improvement.

The complete list of publications is available separately.

Supervised Theses

Completed Theses