I am working as a Senior Data Scientist at AIT’s Digital Insight Lab. My research interest lies in finding and applying quantitative methods for gaining bitcoin value graph audio insights from large-scale, connected datasets. I often act as bridge reseacher between fields and contribute practical methods and tools drawn from machine learning, network analytics, and text mining.
Predictive Maintenance: in cooperation with industry partners, I am working on algorithms for predicting machine outages in order to lower maintenance costs of manufacturing or production plants. Ransomware Payments in the Bitcoin Ecosystem. Knowledge Graphs in the Libraries and Digital Humanities Domain. Encyclopedia of Big Data Technologies, 2018. Evolution of the Bitcoin Address Graph – An Exploratory Longitudinal Study. In: SEMANTICS 2016, Leipzig, Germany, 2016.
Open Annotations on multimedia Web resources. In: International Journal on Digital Libraries 1-19, 2014. A Python tool for extracting entity mentions from a collection of Wikipedia documents. A system that allows people to cross-reference historical maps with resources in Web-based knowledge graphs. An analyzer module for Apache Lucene 4.
A command line tool and API for finding quality issues in SKOS vocabularies. This dataset contains 7,222 Bitcoin seed addresses related to 67 ransomware families as well as addresses that were identified by applying the expansion procedure described in in our paper. A open dataset comprising metadata of 20 million texts, images, videos and sounds gathered from institutions all over Europe by Europeana. German language travelogues covering the period from 1500 until 1875.
It will bring together a team of researchers from history, computer science, as well as library and information science from Austria and Germany. The goal of the VIRTCRIME project lies in the development of novel algorithms and methods for tracing criminal transactions in post-Bitcoin era cryptocurrencies, while considering illegitimate activities in Darknet market places. Orthogonally, the project will provide novel criminological procedures and law enforcement approaches, and investigate legal pre-conditions and consequences. FFG – IKT der Zukunft, Project Lead, Principal Investigator.
Research and develop methods to prevent and prosecute organised crime in virtual currencies. Research, develop, prototype, test, and deploy mechanisms for the large-scale synchronization of web resources. Building on the OAI-PMH strategies for synchronizing metadata, this project will enhance that specification using modern web technologies, but will allow for the synchronization of the objects themselves, not just their metadata. Web-based resource aggregation and presentation interfaces for scholarly publication workflows. Examine application of the Open Annotation Specification in the context of digitized historical maps. Design and build a collaborative Web environment in which scholars and citizens can contribute their knowledge to digitized high-resolution online maps. We experimented with designs that integrate the annotation process with the re-use of data from public data sources, such as Wikipedia.
An interdisciplinary project with the Institute for Egyptology at the University of Vienna. It aimed at building a collaborative Web-based solution for efficiently organizing the collected and digitized content objects from the Egyptian middle kingdom period by means of open collaboratively developed vocabularies. Architecture of the World Wide Web. Open Annotations can easily be shared between platforms, with sufficient richness of expression to satisfy complex requirements while remaining simple enough to also allow for the most common use cases, such as attaching a piece of text to a single web resource. The goal of this course is to introduce the design principles and technologies for building global information, data, and financial networks, show the practical applications of such systems, and discuss their design and their social and policy context. An undergraduate course involving development of an application related to media informatics. Instructor: A masters-level course introducing technologies for building data-centric Web information systems in the library domain.