My current research activities focus on (RDF) graphs and the analysis of graph topologies of real-world and synthetic/benchmark datasets. I investigate features of the graph topologies in order to do classification and domain-class prediction, for instance for the datasets in the LOD cloud. My intention is to (a) optimize the quality of synthetic datasets in terms of similarity to real-worl data, and (b) to use similarity of graph topologies as a measure for dataset search.

• Charaterizing RDF Graphs through Graph-based Measures - Framework and Assessment

  Zloch, Matthäus and Acosta, Maribel and Hienert, Daniel and Conrad, Stefan and Dietze, Stefan. 2020.
  In The Semantic Web Journal. SWJUNDER REVIEW

• A Software Framework and Datasets for the Analysis of Graph Measures on RDF Graphs

  Zloch, Matthäus and Acosta, Maribel and Hienert, Daniel and Dietze, Stefan and Conrad, Stefan. 2019, Portoroz, Slovenia.
  In The Semantic Web, 16th Extended Semantic Web Conference. ESWC 2019Best Student Paper Award

• ClaimsKG: A Knowledge Graph of Fact-Checked Claims

  Tchechmedjiev, Andon and Fafalios, Pavlos and Boland, Katarina and Gasquet, Malo and Zloch, Matthäus and Zapilko, Benjamin and Dietze, Stefan and Todorov, Konstantin. 2019, Portoroz, Slovenia.
  In The Semantic Web, 16th Extended Semantic Web Conference. ISWC 2019

• Towards a Use Case Driven Evaluation of Database Systems for RDF Data Storage - A Case Study for Statistical Data

  Zloch, Matthäus and Hienert, Daniel and Conrad, Stefan. 2017, Vienna, Austria.
  In 16th International Semantic Web Conference, 2nd International Workshop on Benchmarking Linked Data. ISWC 2017

• Methods for the Automatic Selection of Database Systems for Optimized Query Performance

  Zloch, Matthäus. 2016, Klagenfurt, Austria.
  In Ph.D Symposium of INFORMATIK 2016: Computer Science of humans for humans. INFORMATIK 2016

• Improving web search results with explanation-aware snippets: an experimental study

  Wira-Alam, Andias, and Zloch, Matthäus. 2013, Aachen, Germany.
  In 9th International Conference on Web Information Systems and Technologies. WEBIST 2013

• Utilizing regular expressions for instance-based schema matching

  Zapilko, Benjamin, and Zloch, Matthäus and Schaible, Johann. 2012
  In 7th International Workshop on Ontology Matching (OM-2012) collocated with the 11th International Semantic Web Conference. ISWC 2012

This is a collection of code and scripts that I've developed over the time.

• lodcc - framework

  A software framework to prepare and perform a graph-based analysis on the graph topology of large-scale RDF datasets. It enables you to extract a bunch of measures from an RDF graph at large scale (i.e. the english dbpedia with 2.6 billion edges). See an example study which has been conducted on 280 datasets from the LOD Cloud.
  Python

• spkosc03-slack-bot

  A slack-bot which notifies you via private message if your process is finished. This is convenient in situations where you have long running (scientific) processes, running on a server, that you have to wait for to finish. The can also be used to monitor server swapping and low hard disk.
  Nodejs

• Sythetic Dataset Generator

  "datazilla" - Generate realistic test data for any schema. Supports highly normalized and polymorphism-enabled schemas.
  Python

• Metadata Discovery Vocabulary

  Implementation of the disco-spec, the DDI Discovery Vocabulary for social science data. The implementation enables to use the DISCO-model as an object-oriented model in Java. Example implementation can be found in MISSY.
  Java