About
I am an entrepreneur, founder of ScatterBlogs Visual Social Media Analytics, machine learning consultant at
NovaTec and former PostDoc researcher at the Institute for Visualization
and Interactive Systems of the University of Stuttgart.
My research focus is Visual Analytics, the topic of combining artificial intelligence, information visualization and human-computer-interaction to facilitate
complex domain specific analysis task, especially in massive unstructured datasets.
Projects
ScatterBlogs - Visual Social Media Analytics
ScatterBlogs detects breaking news and events from their footprint in social media and alarms journalists, risk managers, asset managers and public safety agents prior to the traditional media coverage.
To achieve this, it employs statistical models and artificial intelligence to detect, locate, verify and rate potential current events in a massive data stream in real-time.
Movement Patterns from Social Media
This was a fun project to deduct aggregated movement patterns from georeferenced social media.
From a global sample of georeferenced tweets, we collect movements by linking all GPS locations that were visited by the same person during one week in the summer holidays.
This revealed interessting patterns like centralization of movements to hubs in France and a network of connections in Germany.
PESCaDO - Personalized Environmental Decission Support and Delivery Orchestration
The goal of PESCaDO was to make the abundance of environemental data, published in varying formats, resolution, quality, available for supporting professional as well as personal decisions.
Data was searched for with spiced queries, classified using machine learning, transformed into semantic structures and made availabe for fuzzy inference in the context of task and problem definitions.
These definitions could vary from leisure activities (e.g. ozone concentrations to high for sport activities) to urban governance (e.g. how high is the risk for black ice).
PatExpert
Patent documents combine the incomprehensibly of technical documents with the legalese of intelectual property rights documents. Research concerning the patentability of an inventions, the
freedom to operate in a market, or searching for white spots in the patent domain are challenging and time consuming. PatExpert facilitates these research tasks by creating and combining
several powerfull search capabilities for related images, semantic relations, similar documents and metadata with ad-hoc result summarization and several feedback cycles. Please have a look
at the TVCG paper about PatViz, the user interface of PatExpert.
Publications
2015
- : Data-Driven Exploration of Real-Time Geospatial Text Streams. In: Machine Learning and Knowledge Discovery in Databases: ECML PKDD 2015 Proceedings, Springer International Publishing (2015) DOI
2014
- : Getting the environmental information across: from the Web to the user. In: Expert Systems Bd. 32, Wiley Publishing Ltd (2014), Nr. 3 DOI
- : Using Large Scale Aggregated Knowledge for Social Media Location Discovery. In: Hawaii International Conference on System Sciences (HICSS-47) Bd. 47, 2014 DOI
- : Casual Analytics: Advancing Interactive Visualization by Domain Knowledge, Universität Stuttgart, PhD dissertation, 2014 DOI
2013
- : Involving the Expert in the Delivery of Environmental Information from the Web. In: EnviroInfo 2013, Bd. 2013 : Shaker, 2013. — Rezensiertes Abstract
- : Visual Analysis of Social Media Data in Emergency Situations by Aggregating Annotated User Movements. In: 10th International Conference on Information Systems for Crisis Response and Management Bd. 2013 : ISCRAM, 2013. — reviewed poster
- : Prolix - Visual Prediction Analysis for Box Office Success. In: IEEE Conference on Visual Analytics Science and Technology (VAST), 2013a
- : ScatterBlogs2: Real-Time Monitoring of Microblog Messages Through User-Guided Filtering. In: IEEE Transactions on Visualization and Computer Graphics (TVCG) Bd. 19 (2013), Nr. 12 DOI
- : TrajectoryLenses - A Set-based Filtering and Exploration Technique for Long-term Trajectory Data. In: Computer Graphics Forum (proceedings of The Eurographics Conference on Visualization) Bd. 2013 (2013b), Nr. 3 DOI
- : Thematic Patterns in Georeferenced Tweets through Space-Time Visual Analytics. In: Computing in Science & Engineering Bd. 15, IEEE (2013), Nr. 3
2012
- : Dynamic Ontology Supported User Interface for Personalized Decision Support. In: The 5th International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services (CENTRIC 2012) : IARIA, 2012 DOI
- : Inverse Document Density: A Smooth Measure for Location-Dependent Term Irregularities. In: Proceedings of COLING 2012, 2012a
- : Personalized Environmental Service Configuration and Delivery Orchestration: The PESCaDO Demonstrator. In: The Extended Semantic Web Conference 2012 : Springer, 2012a
- : HIVEBEAT - A Highly Interactive Visualization Environment for Broad-Scale Exploratory Analysis and Tracing. In: IEEE Conference on Visual Analytics Science and Technology (VAST) Bd. 2012, 2012a DOI
- : Personalized environmental service orchestration for quality life improvement. In: 3rd Intelligent Systems for Quality of Life information Services Workshop Bd. 382 : Springer, 2012b DOI
- : Using Social Media Content in the Visual Analysis of Movement Data. In: 2nd Workshop on Interactive Visual Text Analytics, 2012b
- : Spatiotemporal Anomaly Detection through Visual Analysis of Geolocated Twitter Messages. In: Proceedings of the IEEE Pacific Visualization Symposium (PacificVis), 2012b DOI
- : An Environmental Search Engine based on Interactive Visual Classification. In: Proceedings of the 1st ACM International Workshop on Multimedia Analysis for Ecological Data (MAED 2012) Bd. 2012 : ACM, 2012 DOI
- : Spatiotemporal Social Media Analytics for Abnormal Event Detection using Seasonal-Trend Decomposition. In: IEEE Conference on Visual Analytics Science and Technology (VAST), 2012
- : Visual Classifier Training for Text Document Retrieval. In: IEEE Transactions on Visualization and Computer Graphics (TVCG) Bd. 18 (2012), Nr. 12
2011
- : EdgeAnalyzer: Exploratory Analysis through Advanced Edge Interaction. In: Hawaii International Conference on System Sciences Bd. 44 : IEEE Computer Society, 2011 DOI
- : From Static Textual Display of Patents to Graphical Interactions. In: The Information Retrieval Series: Current Challenges in Patent Information Retrieval 2011. Aufl. : Springer Berlin Heidelberg, 2011 DOI
- : Building an Environmental Information System for Personalized Content Delivery. In: 9th IFIP WG 5.11 International Symposium, ISESS 2011, 2011 DOI
- : Iterative Integration of Visual Insights during Scalable Patent Search and Analysis. In: IEEE Transactions on Visualization and Computer Graphics (TVCG) Bd. 17 (2011), Nr. 5 DOI
- : Das Web als personalisierte Entscheidungsplattform - Die PESCaDO Idee. In: INFORMATIK 2011 - Informatik schafft Communities Bd. 192 : GI Lecture Notes in Informatics, 2011a DOI
- : ScatterBlogs: Geo-spatial document analysis. In: IEEE Conference on Visual Analytics Science and Technology (VAST) Bd. 2011, 2011b DOI
2010
- : Service-Based Infrastructure for User-Oriented Environmental Information Delivery. In: Proceedings of ENVIP 2010 workshop at EnviroInfo2010 Bd. 679 : CEUR-WS.org, 2010 DOI
2009
- : Innovative Filtering Techniques and Customized Analytic Tools. In: Proc. IEEE Symp. on Visual Analytics Science and Technology, 2009. VAST’09, 2009 DOI
- : Iterative Integration of Visual Insights during Patent Search and Analysis. In: IEEE Symposium on Visual Analytics Science and Technology 2009. VAST ’09, 2009 DOI
2008
- : A 3D Treemap Approach for Analyzing the Classificatory Distribution in Patent Portfolios (Poster). In: IEEE Symposium on Visual Analytics Science and Technology (VAST 08), 2008a. — Rezensiertes Poster DOI
- : Visual Patent Retrieval. In: Internationales Rechtsinformatik Symposion (IRIS’08), 2008b DOI
- : Utilization of Semantic Annotations in Interactive User Interfaces for Large Documents. In: 3rd Int. Workshop on Applications of Semantic Technologies (AST’08), 2008c DOI