Short Biography

Christian Reuschling studied Information Technology at the Berufsakademie (University of Cooperative Education) Mosbach and received his diploma in 2001. From 1998 until 2001 he developed Software for Corning Frequency Control Tele Quarz GmbH , a leading worldwide manufacturer of frequency control devices for the global electronics market. The diploma thesis in the context of production of quartz crystal resonators investigated the use of machine learning techniques (Decision Trees, Neural Networks) for analysing the sharpening process of quartz blanks.

He met the German Research Center for Artificial Intelligence in January 2002, where he works as a Software Engineer in the Knowledge Management department, which was renamed to Smart Data & Knowledge Services department later.

Academic Focus

Over the years, as a Software Engineer hopping around our research projects, I worked with many AI techniques in several contexts such as medicine, agriculture, music, search engines, etc. Some of these are

• Text based search and recommendation systems with Lucene, Solr and Elasticsearch
• Text retrieval such as clustering and classification
• General machine learning on structured data
• Time series analysis with deep learning, i.e. LSTMs and TCNs
• Case based reasoning
• Collaborative filtering
• Image retrieval with SURF and SIFT
• Ontology engineering with RDF
• Graph-based semantic recommendation
• Named entity linking
• Big data
• Hyperparameter optimization
• Genetic algorithms

Nevertheless, my main focus is in building recommendation systems both on top of structured and unstructured data. For unstructured text retrieval my main base technologies are Lucene-based frameworks like Elasticsearch or even raw Lucene. For structured data, we use our ontology or graph-based recommendation engine Horst-Graph. Further in the context of building recommendation systems, one focus of mine is hyperparameter optimization with genetic algorithms, where I have implemented an according open source project.

As a Software Engineer I focus not so much on writing papers, but on implementing stable, scalable and reusable software applications in the context of our daily research. Thus, I started several Open Source projects for sharing and publishing my work and interests. My main programming language is Java.

Initiated Open Source Projects

• LeechCrawler - Incremental data crawler on top of Apache Tika.
• DynaQ - 'Dynamic Queries for document based, personal information spaces' is an inquiry system to explore textual information spaces, supporting the user with the search paradigm 'orienteering'.
• DynaQ4Solr - DynaQ text retrieval modules for Solr.
• DynaQ4Elastic - DynaQ text retrieval modules for Elasticsearch.
• Lodex - Linked Open Data Extraction Tool enables to extract large ontology vocabularies out of unstructured data such as document text or social network messages.
• Horst - Horst proudly serves millions of semantic music facts as artists, tracks, labels and groups. The data of musicbrainz is converted into a graph, Horst offers recommendation and fact connectivity search on top of it.
• Horst-Graph - The Horst graph library offers semantic, explainable recommendation and connectivity analysis on top of graphs. It is the generalized backend technology behind Horst.
• Judge - Classification and clustering of documents, optionally as a webservice.
• GenIe - A tool for genetic or evolutionary hyperparameter optimization with entropy analysis. It is written in Java, but can be used language independent with config files and fitness function process calls.
• Sparkling - Create RESTful HTTP services from Java objects with a single line of code.

Publications

• Björn Forcher, Sahar Javadi, Christian Reuschling, Stephan Baumann, Andreas Dengel Justifying Results of the Music Recommender System HORST In: Timour Klouche , Eduardo Miranda (Hrsg.). 9th Conference on Interdisciplinary Musicology. Conference on Interdisciplinary Musicology (CIM-14) 9th December 4-6 Berlin Germany Springer 2014.
• Daniel Sonntag, Christian Husodo Schulz, Christian Reuschling, Luis Galarraga RadSpeech, a mobile dialogue system for radiologists In: Proceedings of the International Conference on Intelligent User Interfaces (IUI). International Conference on Intelligent User Interfaces (IUI) 17th February 14-17 Lisboa Portugal Seiten 317-318 ISBN 978-1-4503-1048-2 ACM New York, USA 2012.
• Christian Reuschling, Stefan Agne, Andreas Dengel DynaQ - Faceted Search for Document Retrieval In: DAS '10: Proceedings of the 9th IAPR International Workshop on Document Analysis Systems. IAPR International Workshop on Document Analysis Systems (DAS-10) June 9-11 Boston MA United States ACM 2010.
• Stefan Agne, Christian Reuschling, Andreas Dengel DynaQ - Dynamic queries for Electronic Document Management In: Proceedings IEEE-EDM. International Electronic Document Management Workshop (EDM) Seiten 56-59 10/2006.
• Christian Reuschling, Sandra Zilles Personalized information filtering for mobile applications In: Klaus P. Jantke (Hrsg.). Knowledge Media Technologies - First International Core-to-Core Workshop Knowledge Media Technologies: First International Core-to-core Workshop. Seiten 1-11 Diskussionsbeiträge 1 Inst. für Medien- und Kommunikationswiss. 2006.
• Katja Einsfeld, Stefan Agne, Matthias Deller, Achim Ebert, Bertin Klein, Christian Reuschling Dynamic Visualization and Navigation of Semantic Virtual Environments In: Proceedings of the 10th International Conference on Information Visualisation (IV 2006). International Conference on Information Visualisation (IV) London United Kingdom Seiten 569-574 ISBN 0-7695-2602-0 IEEE Computer Society Washington, DC, USA 2006.
• B. Decker, E. Ras, J. Rech, Bertin Klein, Christian Reuschling, C. Höcht, L. Kilian A Framework for Agile Reuse in Software Engineering using Wiki Technology In: 2nd Workshop on Knowledge Management for Distributed Agile Processes: Models, Techniques, and Infrastructure, KMDAP 2005 (Part of WM 2005). Workshop on Knowledge Management for Distributed Agile Processes: Models, Techniques, and Infrastructure (KMDAP) 2005.
• Andreas Abecker, Dimitris Apostolou, Jasmin Franz, Wolfgang Maass, Gregory Mentzas, Christian Reuschling, Sylvio Tabor Towards an Information Ontology for Knowledge Asset Trading In: ICE 2003 - 9th International Conference of Concurrent Enterprising, Espoo Proceedings of the 9th International Conference on Concurrent Enterprising. International Conference on Concurrent Enterprising (ICE-2003) 9th June 16-18 Espoo Finland Seiten 1-5 1 2003.

Research And Customer Projects

• SmartCity Living Lab - Interdisciplinary research for the city of the future (Several projects, since 2018)
• ViCKI - AI certification in airplanes (DLR, 2020)
• GEOBOX - Farm box with connections to official information portals (BLE, 2020)
• SERVICEFACTORY - Open platform for Smart Objects data (BMWi, 2016)
• Early Trend Radar - Trend identification and monitoring at global scale (IBB Berlin, 2014)
• Foresight - Multidimensional, iterative Analysis of document corpora (Industry customer, 2014)
• TweekRecommender - Social data aggregation with emotional design and hybride recommender algorithms (IBB Berlin, 2013)
• simREC - Semantic Music Recommendation (BMWi, 2012)
• RADAR - Resource Annotation and Delivery for Mobile Augmented Reality Services (Stiftung RLP für Innovation, 2010)
• iGreen - Public-Private Knowledge Management for agriculture (BMBF, 2009)
• C-Link - Web based tool for conference attendees (Internal, 2008)
• iDocument - Intelligent Document Information Extraction (Stiftung RLP für Innovation, 2008)
• CoMet - Collaborative Sharing of resources and Metadata (RLP, 2007)
• THESEUS MEDICO - Clinical Decision Support and Computer Aided Diagnosis (BMWI, 2007)
• AMPLOG - Amplified Weblog Aggregation (Stiftung RLP für Innovation, 2006)
• BRITE - Business Register and Interoperability throughout Europe (EU, 2006)
• PEEK - Personal and episodic knowledge retrieval in desktop search (Industry customer, 2006)
• DynaQ - Dynamic queries for personal information spaces (Stiftung RLP für Innovation, 2005)
• RISE - Reuse im Software Engineering (BMBF, 2004)
• Contigo - Mobile ontology matching (Industry customer, 2004)
• @VISOR - Human computer interfaces for knowledge structures (BMBF, 2004)
• EPOS - Evolving Personal to Organizational Knowledge Spaces (BMBF, 2003)
• Gnowsis - Semantic Web interfaces for common desktop applications (FFG, 2002)
• INKASS - Intelligent Knowledge Asset Sharing and Trading (EU, 2002)
• FRODO - A Framework for Distributed Organizational Memories (BMBF, 2000)

...and several confidential customer projects

Contact

EMail: reuschling@dfki.de

Phone: ++49 (0) 631 20575 125

Trippstadter Strasse 122
D-67663 Kaiserslautern
Germany