Timo Homburg

Timo Homburg
Hochschule Mainz · Department of Information Technology

Master of Science

About

48
Publications
11,667
Reads
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108
Citations
Introduction
My name is Timo Homburg and I am mainly researching in Semantics and GIS sciences. Another research interest of mine is Computational Linguistics in which I am actively engaged in researching Natural Language Processing of Cuneiform languages.
Additional affiliations
April 2021 - July 2021
Johannes Gutenberg-Universität Mainz
Position
  • Lecturer
Description
  • Lecture: Exploration of digital tools in antiquity research
August 2018 - February 2021
Hochschule Mainz
Position
  • Lecturer
Description
  • Lecture: Software Engineering in VB.NET
October 2017 - present
Hochschule RheinMain
Position
  • Lecturer
Description
  • Courses: Introduction to Computer Science and Algorithms and Datastructures
Education
April 2015 - July 2019
Universität Koblenz-Landau
Field of study
  • Computer Science
April 2012 - March 2015
Goethe-Universität Frankfurt am Main
Field of study
  • Computer Science
October 2008 - February 2012
Hochschule RheinMain
Field of study
  • Computer Science

Publications

Publications (48)
Article
Full-text available
GeoSPARQL is an important standard for the geospatial linked data community, given that it defines a vocabulary for representing geospatial data in RDF, defines an extension to SPARQL for processing geospatial data, and provides support for both qualitative and quantitative spatial reasoning. However, what the community is missing is a comprehensiv...
Article
Full-text available
Motivated by the increased use of 3D acquisition of objects by cultural heritage institutions, we were investigating ontologies and metadata schemes for the acquisition process to provide details about the 3D capturing, which can be combined with preexisting ontologies describing an object. Therefore we divided the 3D capturing workflow into common...
Article
Full-text available
In 2012 the Open Geospatial Consortium published GeoSPARQL defining ``an RDF/OWL ontology for [spatial] information'', ``SPARQL extension functions'' for performing spatial operations on RDF data and ``RIF rules'' defining entailments to be drawn from graph pattern matching. In the 8+ years since its publication, GeoSPARQL has become the most impor...
Technical Report
Full-text available
http://docs.ogc.org/wp/19-078r1/19-078r1.html The purpose of this document is to outline the benefits of representing geospatial data using semantic and graph technologies. It aims to provide motivation for OGC members to consider the publication of geospatial data using these technologies.
Conference Paper
Full-text available
We present experiments on word segmentation for Akkadian cuneiform, an ancient writing system and a language used for about 3 millennia in the ancient Near East. To our best knowledge, this is the first study of this kind applied to either the Akkadian language or the cuneiform writing system. As a logosyllabic writing system, cuneiform structurall...
Conference Paper
Full-text available
We set out to determine the feasibility of implementing Discrete Global Grid System (DGGS) representations of geometry support in a GeoSPARQL-enabled triplestore, and test the GeoSPARQL compliance for it. The implementation is a variant of Apache Jena's existing GeoSPARQL support. Compliance is tested using an adapted implementation of the GeoSPARQ...
Article
Full-text available
The dataset consists of 3D scans of one cuneiform tablet from Haft Tappeh Iran and one cuneiform tablet of the Hilprecht Collection as well as 3D annotations on these 3Dmeshes, including metadata. The 3D annotations were created with the annotation software Annotorious2 on 2D renderings and reprojected to the original 3D model. Therespective 2D ren...
Preprint
Full-text available
In 2012 the Open Geospatial Consortium published GeoSPARQL defining “an RDF/OWL ontology for [spatial] information”, “SPARQL extension functions” for performing spatial operations on RDF data and “RIF rules” defining entailments to be drawn from graph pattern matching. In the 8+ years since its publication, GeoSPARQL has become the most important s...
Article
This publication introduces PaleoCodage, a new machine-readable way to capture cuneiform paleographic shapes. Many different systems of listing and describing cuneiform signs exist, but none of the systems can be used to describe the shape, i.e. paleographic features of cuneiform signs. PaleoCodage aims to fill this missing link of description whic...
Conference Paper
Full-text available
In 2012 the Open Geospatial Consortium published GeoSPARQL defining “SPARQL extension functions”, “RIF rules” and “an RDF/OWL ontology for [spatial] information”. In the 8+ years since its publication, GeoSPARQL has become the most important spatial Semantic Web standard, as judged by references to it in other Semantic Web standards and its wide us...
Article
Full-text available
Geodesists work in Industry 4.0 and Spatial Information Management by using cross linked machines, people and data. Yet, one of the most popular technologies for interlinking data-Semantic Web technologies-have been largely absent from the geodesy community, because of the slow development of standards, a mandatory non-trivial conversion between ge...
Article
Full-text available
Motivated by numerous discussions around the increasing use of research software in the field of archaeology, this article outlines the aspects for its review. The evaluation of software is a complex topic, since its field of application and development context has a considerable influence. In addition, there are many very different use cases, rang...
Article
Full-text available
Checking the compliance of geospatial triplestores with the GeoSPARQL standard represents a crucial step for many users when selecting the appropriate storage solution. This publication presents the software which comprises the GeoSPARQL compliance benchmark – a benchmark which checks RDF triplestores for compliance with the requirements of the Geo...
Preprint
Full-text available
We propose a series of tests that check for the compliance of RDF triplestores with the GeoSPARQL standard. The purpose of the benchmark is to test how many of the requirements outlined in the standard a tested system supports and to push triplestores forward in achieving a full GeoSPARQL compliance. This topic is of concern because the support of...
Article
Full-text available
A continuing question in the geospatial community is the evaluation of fitness for use of map data for a variety of use cases. While data quality metrics and dimensions have been discussed broadly in the geospatial community and have been modelled in semantic web vocabularies, an ontological connection between use cases and data quality expressions...
Chapter
We introduce an approach to semantically represent and query raster data in a Semantic Web graph. We extend the GeoSPARQL vocabulary and query language to support raster data as a new type of geospatial data. We define new filter functions and illustrate our approach using several use cases on real-world data sets. Finally, we describe a prototypic...
Preprint
We introduce an approach to semantically represent and query raster data in a Semantic Web graph. We extend the GeoSPARQL vocabulary and query language to support raster data as a new type of geospatial data. We define new filter functions and illustrate our approach using several use cases on real-world data sets. Finally, we describe a prototypic...
Conference Paper
Full-text available
Geodesists are working in Industry 4.0 and Spatial Information Management by using cross linked machines, people and data. Moreover, open source software, open geodata and open access are becoming increasingly important. As part of the Semantic Web, Linked Open Data (LOD) must be created and published in order to provide free open geodata in intero...
Poster
Full-text available
The poster discusses representing Ogham Stones as linked data and representing initial preliminary spatial and linguistic analysis on the Ogham stones locations and text contents
Chapter
In this paper we present a new concept of geospatial quality assurance that is currently planned to be implemented in the German Federal Agency of Cartography and Geodesy. Linked open data is being enriched with Semantic Web data in order to create thematic maps relevant to the population. We evaluate the quality of such enriched maps using a stand...
Preprint
In this publication we introduce a linked data powered application which assists users to find so-called Stolpersteine, stones commemorating Jewish victims of the second world war. We show the feasibility of a dedicated location based service as an app using linked data resources and evaluate this approach against local data sources gathered by com...
Article
Full-text available
In this publication we introduce a linked data powered application which assists users to find so-called Stolpersteine, stones commemorating Jewish victims of the second world war. We show the feasibility of a dedicated location based service as an app using linked data resources and evaluate this approach against local data sources gathered by com...
Poster
This poster gives an overview on data quality assurance tools developed in the SemanticGIS project to evaluate data quality using a Semantic context.
Conference Paper
Full-text available
Cuneiform characters have been described using various systems in the past and the varieties of systems used in the literature as well as in daily work varies from language to discipline. Commonly, sign lists Borger (1971, 2004), Deimel & Gössmann (1947), Rüster & Neu (1989) are created and published in the form of dictionaries in a non-machine-rea...
Poster
Full-text available
This publication proposes a best practice digital processing pipeline for cuneiform languages. The pipeline includes the following steps: 1. Annotation of cuneiform tablet 3D scans, 2. Creation of transliterations in ATF and using PaleoCodage to capture cuneiform character variants, 3. Conversion and then annotation of transliterations using TEI (s...
Article
Full-text available
In this publication we present results of a comparative study of Wikidata and OpenStreetMap (OSM) in the area of Germany, Austria and Switzerland. We include metadata of OSM and Wikidata, compare the two datasets on an object-by-object basis and on equivalent properties as defined by the respective communities. Our results give an indication about...
Presentation
Full-text available
This presentation, meant for a meeting of the W3C Spatial Data On The Web Interest Group discusses shortcomings in the GeoSPARQL query language which have been encountered in the SemanticGIS project. We give suggestions on how to improve the status quo by adding more query functions, literals and datatype definitions to the language.
Presentation
This presentation shows efforts in the documentation of cuneiform tablets found in Haft Tappeh. It proposes a workflow to digitally document cuneiform tablets using semantic technologies so that they can be used by a variety of research communities. To this end the text annotation and processing strategy is described and set into perspective to a t...
Presentation
Full-text available
Digitale Ortsverzeichnisse (Gazetteers) beinhalten Informationen über Orte sowie deren geographische Lage. Eine der grundlegendsten Aufgaben im Umgang mit solchen Ortsverzeichnissen ist die Suche nach Ortsnamen. Diese Suche kann sehr schwierig sein für Ortsnamen, die in verschiedenen Transliterations- oder Transkriptionsvarianten vorliegen, wie es...
Article
In the context of disaster management, geospatial information plays a crucial role in the decision-making process to protect and save the population. Gathering a maximum of information from different sources to oversee the current situation is a complex task due to the diversity of data formats and structures. Although several approaches have been...
Chapter
In this paper we present a new way to evaluate geospatial data quality using Semantic technologies. In contrast to non-semantic approaches to evaluate data quality, Semantic technologies allow us to model situations in which geospatial data may be used and to apply costumized geospatial data quality models using reasoning algorithms on a broad scal...
Poster
Full-text available
This poster presents a geographic information system based on the semantic technologies to integrate and manage heterogeneous geospatial data.
Presentation
In this paper we present a new way to evaluate geospatial data quality using Semantic technologies. In contrast to non-semantic approaches to evaluate data quality, Semantic technologies allow us to model situations in which geospatial data may be used and to apply costumized geospatial data quality models using reasoning algorithms on a broad scal...
Poster
Full-text available
Einleitung und Motivation Semantische Extraktionsmechanismen (z.B. Topic Modelling) werden seit vielen Jahren im Bereich des Semantic Web und Natural Language Processings sowie in den Digital Humanities als Verfahren zur Visualisierung und automatischen Kategorisierung von Dokumenten eingesetzt. Oft ergeben sich durch den Einsatz neue Aspekte der I...
Poster
This poster explores preliminary work on map change prediction for OpenStreetMap data.
Article
In this article we want to present an integrational approach of geospatial data into the semantic web in the context of the semantic GIS project. We first highlight the purpose and advantages of the integration and interpretation of data into the semantic web and further on describe the process of data acquisition, data interpretation, quality assu...
Poster
Full-text available
In this work we present efforts in automatic processing of Hittite Cuneiform texts. Firstly, efforts in developing a POSTagger for Hittite Cuneiform are presented and evaluated in order to make the way to an automated translation of Hittite cuneiform texts from its cuneiform representation as well as its transliteration representation. Secondly eff...
Chapter
For several years, many researchers tried to semantically integrate geospatial datasets into the semantic web. Although, there are many general means of integrating interconnected relational datasets (e.g. R2RML), importing schema-less relational geospatial data remains a major challenge in the semantic web community. In our project SemGIS we face...
Presentation
Introduction to the SemanticGIS project, its goals and progress on the German conference of geographical computer science organized by the German geographical computer science students association (KonGeos)
Poster
Full-text available
Description on how to interlink heterogenous spatial data using an interlinking ontology partially extracted from official INSPIRE XML schema data
Conference Paper
The paper presents work on implementation of semantic technologies within a geospatial environment to provide a common base for further semantic interpretation. The work adds on the current works in similar areas where priorities are more on spatial data integration. We assert that having a common unified semantic view on heterogeneous datasets pro...
Thesis
Digital Humanities nowadays gain more and more importance in analyzing texts in new and interesting ways. At the same time, Digital Humanities become recognized by more and more faculties. One example of the application of the Digital Humanities and of computer linguistics can be found in the field of Archaeology. For archaeologists, a decent way o...
Poster
Full-text available
Overview on word segmentation algorithms tested on Akkadian cuneiform
Poster
Full-text available
With our poster and the accompanying demo, we present current progress on the information-technological support for scholars and students of cuneiform. For a period of about 3000 years, cuneiform was the dominant writing system of the Ancient Near East, with a rich literary tradition in several languages, and an extensive amount of texts preserved...
Conference Paper
Full-text available
A major problem in the research for new artificial intelligence methods for workflows is the evaluation. There is a lack of large evaluation corpora. Existing methods manually model workflows or use workflow extraction to automatically extract workflows from text. Both existing approaches have limitations. The manual modeling of workflows requires...
Thesis
This Bachelor thesis describes the development of an Android based mobile application to monitor states of weather monitoring stations for the use of radioactive measurements in the «German National Metrological Service» (DWD). The use case of the application is the scenario of supporting services via mobile phone, which are on duty 24hours. In cas...

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Projects

Projects (6)
Project
Enhancing spatial semantic representations
Project
We are the Research Squirrel Engineers! The Research Squirrel Engineers are a collection of private research projects focusing on Linked Open Data, Geoinformatics and Cultural Heritage. The Research Squirrel Engineers are a open group of researchers related to Research Software Engineering, Geoinformatics and Cultural Heritage background. We want to cooperate with other researchers who want to do their private research under one brand: The RSE: Research Squirrel Engineers!
Project
Collection of miscellaneous research of mine