Dr.-Ing.

Julien Gedeon

Currently, I am a Senior Solution Architect in the Digital R&D department at Covestro. Prior to that, I held (senior) positions at different consulting companies, focusing on the architecture, migration, and operation of applications and services in the AWS cloud.
I also have a strong academic background, having been the head of the SUN (Smart Ubiquitous Network) group as a post-doctoral researcher at the Telecooperation Lab, TU Darmstadt.
I hold a Ph.D. and master degree in computer science (with a minor in psychology) from TU Darmstadt.

A detailed CV is available upon request.

Let's connect!

Skills

Core Competencies & Workflow

Cloud-native development / IaC / DevSecOps
Platform Engineering
Team leadership
Project management
Multi-lingual communicator

Coding & Tools

Certifications

Languages

English
German
French
Spanish
Russian

Awards & Grants

2020EAI (European Alliance for Innovation) Senior Member
2019Amazon AWS Research Grant
2018Best Paper Award at MobiCASE

Research

Overview

My (former) research work focused on three main areas: Management of Networked Resources, Ubiquitous Computing Environments and Network Softwarization. One core objective is to optimize the performance of networks and distributed systems for data-centric applications that rely on stream processing or real-time data analytics, e.g., via Edge Computing.

Networks in Smart Cities are one the most prominent target domains for this research. As a response to virtually unmanageable growth and unprecedented challenges, more and more cities are transformed into digitally interwoven human-device ecosystems. As part of this transition, large scale data are continuously generated, e.g., from environment sensors and mobile devices, and must be processed under increasingly tight real-time constraints to render the much-desired intelligent behavior of the smart city ecosystem.

Selected highlights

Storage at the Edge: vStore is a framework that enables context-aware storage decisions for applications. It provides a storage abstraction layer with the support for various kinds of storage nodes, ranging from cloud to edge storage. vStore decouples user-generated data from pre-defined storage locations and captures user intentions by combining various sources of contextual information. The framework facilitates sharing of data between different applications and adapts to changes in the network environment, e.g., in case of congestions.
vStore uses rules that follow the Event-Condition-Action (ECA) paradigm to make placement decisions. Rules can be defined globally and pushed to the devices, as well as configured locally.

darmstadtCloud: darmstadtCloud aims to explore the possibility of providing a city-wide cloudlet infrastructure in Darmstadt. For this purpose, we collect locations of infrastructures on which cloudlets could be installed: Cellular base stations, WiFi access points and street lamps.
Users can explore the locations of the different access point types on an interactive map. In addition, we provide an API to third parties for accessing the dataset and performing spatial queries.

flexEdge: flexEdge is a framework for the flexible execution of services at the Edge. flexEdge uses composable microservices as a programming model for developers. Our framework furthermore supports the chaining of services and manages available microservices in a repository, as to avoid prior transfers from the client devices to the surrogates.
In contrast to client-based offloading, where client devices transfer the services (and sometimes the entire execution environment), our approach of store-based onloading fetches microservices from a repository (the microservice store), and transfers them to edge agents that execute them.

Publications

Copyright notice: The material is offered as a means to ensure timely dissemination of scholarly and technical works on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, not withstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder(s).

2022

BigMEC: Scalable Service Migration for Mobile Edge Computing

Florian Brandherm, Julien Gedeon, Osama Abboud, Max Mühlhäuser

ACM/IEEE Symposium on Edge Computing

PDF 10.1109/SEC54971.2022.00018 Bibtex

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@inproceedings{brandherm2022-bigmec,
  title={BigMEC: Scalable Service Migration for Mobile Edge Computing}, 
  author={Florian Brandherm and Julien Gedeon and Osama Abboud and Max M{\"{u}}hlh{\"{a}}user},
  year={2022},
  booktitle={Proceedings of the 2022 IEEE/ACM Symposium on Edge Computing (SEC)},
  year={2022}
}

2021

Chameleons on Cloudlets: Elastic Edge Computing Through Microservice Variants

Julien Gedeon, Martin Wagner, Karolis Skaisgiris, Florian Brandherm, Max Mühlhäuser

Techreport, arXiv CoRR

PDF 10.48550/arXiv.2105.10355 Bibtex

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@inproceedings{gedeon2021-chameleons,
  title={Chameleons on Cloudlets: Elastic Edge Computing Through Microservice Variants}, 
  author={Julien Gedeon and Martin Wagner and Karolis Skaisgiris and Florian Brandherm and Max M{\"{u}}hlh{\"{a}}user},
  year={2021},
  eprint={2105.10355},
  archivePrefix={arXiv},
  primaryClass={cs.DC},
  url = {https://arxiv.org/abs/2105.10355}
}

2020

Urban Edge Computing

Julien Gedeon

Dissertation, TU Darmstadt

PDF 10.25534/tuprints-00013362 Bibtex

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@phdthesis{gedeon2020-diss,
  title = {Urban Edge Computing},
  author = {Julien Gedeon},
  address = {Darmstadt},
  year = {2020},
  school = {Technische Universit{\"a}t Darmstadt},
  doi = {10.25534/tuprints-00013362},
  url = {http://tuprints.ulb.tu-darmstadt.de/13362/}
}

Sunstone: Navigating the Way Through the Fog

Julien Gedeon, Sebastian Zengerle, Sebastian Alles, Florian Brandherm, Max Mühlhäuser

IEEE International Conference on Fog and Edge Computing (ICFEC)

PDF 10.1109/ICFEC50348.2020.00013 Bibtex

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@inproceedings{gedeon2020-sunstone,
  title = {Sunstone: Navigating the Way Through the Fog}, 
  author = {Julien Gedeon and Sebastian Zengerle and Sebastian Alles and Florian Brandherm and Max M{\"{u}}hlh{\"{a}}user},
  booktitle = {Proceedings of 4th International Conference on Fog and Edge Computing (ICFEC)},
  year = {2020},
  publisher = {{IEEE}},
  doi = {10.1109/ICFEC50348.2020.00013},
  pages = {49-58},
  url = {https://ieeexplore.ieee.org/document/9139180}
}

An Assessment Framework for Edge Applications

Martin Wagner, Julien Gedeon, Karolis Skaisgiris, Florian Brandherm, Max Mühlhäuser

ACM/IEEE Symposium on Edge Computing: Posters

PDF 10.1109/SEC50012.2020.0003 Bibtex

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@inproceedings{wagner2020-assessment,
  title={{Poster: An Assessment Framework for Edge Applications}},
  author={Wagner, Martin and Gedeon, Julien and Skaisgiris, Karolis and Brandherm, Florian and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 2020 IEEE/ACM Symposium on Edge Computing (SEC): Posters},
  year = {2020},
  publisher = {{IEEE}},
  doi = {10.1109/SEC50012.2020.0003},
  pages = {1-3},
}

2019

A Microservice Store for Efficient Edge Offloading

Julien Gedeon, Martin Wagner, Jens Heuschkel, Lin Wang, Max Mühlhäuser

IEEE Global Communications Conference (GLOBECOM)

PDF 10.1109/GLOBECOM38437.2019.9014114 Bibtex

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@inproceedings{gedeon2019-microservicestore,
  title={{A Microservice Store for Efficient Edge Offloading}},
  author={Gedeon, Julien and Wagner, Martin and Heuschkel, Jens and Wang, Lin and M{\"u}hlh{\"a}user, Max},
  booktitle = {Proceedings of the 2019 IEEE Global Communications Conference (GLOBECOM)},
  year = {2019},
  publisher = {{IEEE}},
  doi = {10.1109/GLOBECOM38437.2019.9014114},
  pages = {1-6},
  url = {https://ieeexplore.ieee.org/document/9014114}
}

What the Fog? Edge Computing Revisited: Promises, Applications and Future Challenges

Julien Gedeon, Florian Brandherm, Rolf Egert, Tim Grube, Max Mühlhäuser

IEEE Access

PDF 10.1109/ACCESS.2019.2948399 Bibtex

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@article{gedeon2019-whatthefog,
  title={{What the Fog? Edge Computing Revisited: Promises, Applications and Future Challenges}}, 
  author = {Julien Gedeon and Florian Brandherm and Rolf Egert and Tim Grube and Max M{\"{u}}hlh{\"{a}}user},
  journal = {IEEE Access},
  year = {2019},
  publisher = {{IEEE}},
  volume = {7},
  doi = {10.1109/ACCESS.2019.2948399},
  pages = {152847-152878},
  url = {https://ieeexplore.ieee.org/document/8877785}
}

VirtualStack: Green High Performance Protocol Processing Leveraging FPGAs

Jens Heuschkel, Philipp Thomasberger, Julien Gedeon, Max Mühlhäuser

IEEE Global Communications Conference (GLOBECOM)

PDF 10.1109/GLOBECOM38437.2019.9013267 Bibtex

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@inproceedings{heuschkel2019-virtualstack,
  author = {Jens Heuschkel and Philipp Thomasberger and Julien Gedeon and Max M{\"{u}}hlh{\"{a}}user},
  title = {{VirtualStack: Green High Performance Network Protocol Processing Leveraging FPGAs}},
  booktitle = {Proceedings of the 2019 IEEE Global Communications Conference (GLOBECOM)},
  year = {2019},
  publisher = {{IEEE}},
  doi = {10.1109/GLOBECOM38437.2019.9013267},
  pages = {1-6},
  url = {https://ieeexplore.ieee.org/abstract/document/9013267}
}

Mastering Music Instruments through Technology in Solo Learning Sessions

Karola Marky, Andreas Weiß, Julien Gedeon, Sebastian Günther

Workshop on Interacting with Smart Objects (SmartObjects)

PDF n.A Bibtex

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@inproceedings{marky-2019music,
  booktitle = {Proceedings of the 7th Workshop on Interacting with Smart Objects (SmartObjects '19) in conjunction with EICS '19},
  year = {2019},
  author = {Marky, Karola and Weiss, Andreas and Gedeon, Julien and G{\"u}nther, Sebastian},
  title = {Mastering Music Instruments through Technology in Solo Learning Sessions},
  url = {http://tubiblio.ulb.tu-darmstadt.de/113376/}
}

2018

From Cell Towers to Smart Street Lamps: Placing Cloudlets on Existing Urban Infrastructures

Julien Gedeon, Michael Stein, Jeff Krisztinkovics, Patrick Felka, Katharina Keller, Christian Meurisch, Lin Wang, Max Mühlhäuser

ACM/IEEE Symposium on Edge Computing

PDF 10.1109/SEC.2018.00021 Bibtex

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@inproceedings{gedeon2018-urbancloudlets,
  title={{From Cell Towers to Smart Street Lamps: Placing Cloudlets on Existing Urban Infrastructures}},
  author={Gedeon, Julien and Stein, Michael and Krisztinkovics, Jeff and Felka, Patrick and Keller, Katharina and Meurisch, Christian and Wang, Lin and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 2018 IEEE/ACM Symposium on Edge Computing (SEC)},
  pages={187--202},
  year={2018},
  organization={IEEE},
  doi = {10.1109/SEC.2018.00021},
  url = {https://ieeexplore.ieee.org/abstract/document/8567666}
}

vStore: A Context-Aware Framework for Mobile Micro-Storage at the Edge

Julien Gedeon, Nicolás Himmelmann, Patrick Felka, Fabian Herrlich, Michael Stein, Max Mühlhäuser

International Conference on Mobile Computing, Applications and Services (MobiCASE)

PDF 10.1007/978-3-319-90740-6_10 Bibtex

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@inproceedings{gedeon2018-vStore,
  title={{vStore: A Context-Aware Framework for Mobile Micro-Storage at the Edge}},
  author={Gedeon, Julien and Himmelmann, Nicol{\'a}s and Felka, Patrick and Herrlich, Fabian and Stein, Michael and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the International Conference on Mobile Computing, Applications and Services (MobiCASE)},
  year={2018},
  pages = {165--182},
  doi = {10.1007/978-3-319-90740-6_10},
  url = {https://link.springer.com/chapter/10.1007%2F978-3-319-90740-6_10}
}

On Scalable In-Network Operator Placement

Julien Gedeon, Michael Stein, Lin Wang, Max Mühlhäuser

International Conference on Computer Communication and Networks (ICCCN)

PDF 10.1109/ICCCN.2018.8487419 Bibtex

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@inproceedings{gedeon2018-operatorplacement,
  title={{On Scalable In-Network Operator Placement for Edge Computing}},
  author={Gedeon, Julien and Stein, Michael and Wang, Lin and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 27th International Conference on Computer Communication and Networks (ICCCN)},
  pages={1--9},
  year={2018},
  organization={IEEE},
  doi = {10.1109/ICCCN.2018.8487419},
  url = {https://ieeexplore.ieee.org/document/8487419}
}

MOERA: Mobility-agnostic Online Resource Allocation for Edge Computing

Lin Wang, Lei Jiao, Jun Li, Julien Gedeon, Max Mühlhäuser

IEEE Transactions on Mobile Computing

PDF 10.1109/TMC.2018.2867520 Bibtex

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@article{wang2018-moera,
  title={{MOERA: Mobility-agnostic Online Resource Allocation for Edge Computing}},
  author={Wang, Lin and Jiao, Lei and Li, Jun and Gedeon, Julien and M{\"u}hlh{\"a}user, Max},
  journal={IEEE Transactions on Mobile Computing},
  year={2018},
  volume    = {18},
  number    = {8},
  pages     = {1843--1856},
  year      = {2019},
  doi = {10.1109/TMC.2018.2867520},
  url = {https://ieeexplore.ieee.org/document/8449107/}
}

A Multi-Cloudlet Infrastructure for Future Smart Cities: An Empirical Case Study

Julien Gedeon, Jeff Krisztinkovics, Christian Meurisch, Michael Stein, Lin Wang, Max Mühlhäuser

International Workshop on Edge Systems, Analytics and Networking (EdgeSys)

PDF 10.1145/3213344.3213348 Bibtex

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@inproceedings{gedeon2018-multicloudlet,
  title={{A Multi-Cloudlet Infrastructure for Future Smart Cities: An Empirical Study}},
  author={Gedeon, Julien and Krisztinkovics, Jeff and Meurisch, Christian and Stein, Michael and Wang, Lin and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 1st International Workshop on Edge Systems, Analytics and Networking (EdgeSys)},
  pages={19--24},
  year={2018},
  organization={ACM},
  doi = {10.1145/3213344.3213348},
  url = {https://dl.acm.org/doi/10.1145/3213344.3213348}
}

Fog Computing: Current Research and Future Challenges

Julien Gedeon, Jens Heuschkel, Lin Wang, Max Mühlhäuser

KuVS Fachgespräche Fog Computing

PDF n.A Bibtex

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@inproceedings{gedeon2018-fogcomputing,
  title={{Fog Computing: Current Research and Future Challenges}},
  author={Gedeon, Julien and Heuschkel, Jens and Wang, Lin and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of 1.GI/ITG KuVS Fachgespr{\"a}che Fog Computing},
  year={2018},
  pages = {1--4},
}

2017

Temporal Coverage Analysis of Router-based Cloudlets Using Human Mobility Patterns

Christian Meurisch, Julien Gedeon, Artur Gogel, The An Binh Nguyen, Fabian Kaup, Florian Kohnhäuser, Lars Baumgärtner , Milan Schmittner, Max Mühlhäuser

IEEE Global Communications Conference (GLOBECOM)

PDF 10.1109/GLOCOM.2017.8255035 Bibtex

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@inproceedings{meurisch2017-temporalcoverage,
  title={{Temporal Coverage Analysis of Router-Based Cloudlets Using Human Mobility Patterns}},
  author={Meurisch, Christian and Gedeon, Julien and Gogel, Artur and Nguyen, The An Binh and Kaup, Fabian and Kohnh{\"a}user, Florian and Baumg{\"a}rtner, Lars and Schmittner, Milan and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the {IEEE} Global Communications Conference (GLOBECOM)},
  pages={1--6},
  year={2017},
  organization={IEEE},
  doi = {10.1109/GLOCOM.2017.8255035},
  url = {https://ieeexplore.ieee.org/abstract/document/8255035}
}

Router-based Brokering for Surrogate Discovery in Edge Computing

Julien Gedeon, Christian Meurisch, Disha Bhat, Michael Stein, Lin Wang, Max Mühlhäuser

International Workshop on Hot Topics in Planet-Scale Mobile Computing and Online Social Networking (HotPOST)

PDF 10.1109/ICDCSW.2017.61 Bibtex

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@inproceedings{gedeon2017-routerbroker,
  title={{Router-based Brokering for Surrogate Discovery in Edge Computing}},
  author={Gedeon, Julien and Meurisch, Christian and Bhat, Disha and Stein, Michael and Wang, Lin and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the International Conference on Distributed Computing Systems Workshops (ICDCS Workshops)},
  year={2017},
  pages     = {145--150},
  doi = {10.1109/ICDCSW.2017.61},
  url = {https://ieeexplore.ieee.org/document/7979808}
}

Decision Support for Computational Offloading by Probing Unknown Services

Christian Meurisch, Julien Gedeon, The An Binh Nguyen, Fabian Kaup, Max Mühlhäuser

International Conference on Computer Communications and Networks (ICCCN)

PDF 10.1109/ICCCN.2017.8038406 Bibtex

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@inproceedings{meurisch2017-offloading,
  title={{Decision Support for Computational Offloading by Probing Unknown Services}},
  author={Meurisch, Christian and Gedeon, Julien and Nguyen, The An Binh and Kaup, Fabian and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 26th International Conference on Computer Communication and Networks (ICCCN)},
  pages={1--9},
  year={2017},
  organization={IEEE},
  doi = {10.1109/ICCCN.2017.8038406},
  url = {https://ieeexplore.ieee.org/document/8038406/}
}

Upgrading Wireless Home Routers as Emergency Cloudlet and Secure DTN Communication Bridge

Christian Meurisch, The An Binh Nguyen, Julien Gedeon, Florian Kohnhäuser, Milan Schmittner, Stefan Niemczyk, Stefan Wullkotte, Max Mühlhäuser

International Conference on Computer Communications and Networks (ICCCN): Posters

PDF 10.1109/ICCCN.2017.8038485 Bibtex

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@inproceedings{meurisch2017-DTN,
  title={{Upgrading Wireless Home Routers as Emergency Cloudlet and Secure DTN Communication Bridge}},
  author={Meurisch, Christian and Nguyen, The An Binh and Gedeon, Julien and Kohnh{\"a}user, Florian and Schmittner, Milan and Niemczyk, Stefan and Wullkotte, Stefan and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 26th International Conference on Computer Communication and Networks (ICCCN)},
  pages={1--2},
  year={2017},
  organization={IEEE},
  doi = {10.1109/ICCCN.2017.8038485},
  url = {https://ieeexplore.ieee.org/document/8038485}
}

Edge Computing via Dynamic In-Network Processing

Julien Gedeon

International Conference on Networked Systems (NetSys): PhD Forum

PDF n.A Bibtex

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@inproceedings{gedeon2017-inp,
  title={{Edge Computing via Dynamic In-network Processing}},
  author={Gedeon, Julien},
  booktitle={International Conference on Networked Systems (Netsys'17): PhD Forum},
  year={2017},
  pages={1--2},
}

older

Understanding spatial and temporal coverage in participatory sensor networks

Julien Gedeon, Immanuel Schweizer

Local Computer Networks Conference Workshops (LCN Workshops 2015)

PDF 10.1109/LCNW.2015.7365917 Bibtex

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@inproceedings{gedeon2015-coverage,
  title={{Understanding Spatial and Temporal Coverage in Participatory Sensor Networks}},
  author={Gedeon, Julien and Schweizer, Immanuel},
  booktitle={Proceedings of the 40th {IEEE} Local Computer Networks Conference Workshops (LCN Workshops)},
  pages={699--707},
  year={2015},
  doi={10.1109/LCNW.2015.7365917},
  url = {https://ieeexplore.ieee.org/document/7365917/}
}

Noisemap - Multi-tier incentive mechanisms for participative urban sensing

Immanuel Schweizer, Christian Meurisch, Julien Gedeon, Roman Bärtl, Max Mühlhäuser

International Workshop on Sensing Applications on Mobile Phones (PhoneSense)

PDF 10.1145/2389148.2389157 Bibtex

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@inproceedings{schweizer2012-noisemap,
  title={{Noisemap: multi-tier incentive mechanisms for participative urban sensing}},
  author={Schweizer, Immanuel and Meurisch, Christian and Gedeon, Julien and B{\"a}rtl, Roman and M{\"u}hlh{\"a}user, Max},
  booktitle={Proceedings of the 3rd International Workshop on Sensing Applications on Mobile Phones},
  year={2012},
  organization={ACM},
  series = {PhoneSense '12},
  year = {2012},
  isbn = {978-1-4503-1778-8},
  pages = {9:1--9:5},
  url = {http://doi.acm.org/10.1145/2389148.2389157},
  doi = {10.1145/2389148.2389157},
}

Contact

Please do not hesitate to drop me a line: