Christoph Lange

Christoph Lange
Fraunhofer Institute for Applied Information Technology FIT | FIT · Data Science and Artificial Intelligence

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About

270
Publications
83,067
Reads
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2,417
Citations
Citations since 2016
106 Research Items
1729 Citations
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2016201720182019202020212022050100150200250300
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Introduction
I am broadly interested in organising knowledge in a formal, structured way in order to get added value from it. I am a creative and diligent worker and networker, experienced in organising events to build and connect international scientific communities. New collaborations benefit from my diverse skills and connections.
Additional affiliations
November 2013 - present
University of Bonn
Position
  • PostDoc Position
May 2012 - present
University of Birmingham
Position
  • ForMaRE – Formal Mathematical Reasoning in Economics
Description
  • My research is funded by the project “Formal Representation and Proof for Cooperative Games: A Foundation for Complex Social Behaviour” (EPSRC project EP/J007498/1).
June 2011 - April 2012
Universität Bremen
Position
  • OntoIOp (Ontology Integration and Interoperability)
Description
  • Standardization of the Distributed Ontology Language (DOL), ISO Working Draft 17347.
Education
September 2006 - October 2011
Jacobs University
Field of study
  • Computer Science

Publications

Publications (270)
Conference Paper
Full-text available
Novel auction schemes are constantly being designed. Their design has significant consequences for the allocation of goods and the revenues generated. But how to tell whether a new design has the desired properties, such as efficiency, i.e. allocating goods to those bidders who value them most? We say: by formal, machine-checked proofs. We investig...
Article
Full-text available
The Distributed Ontology Language DOL, which is currently being stan-dardised as ISO WD 17347 within the OntoIOp (Ontology Integration and Inter-operability) activity of ISO/TC 37/SC 3, aims at providing a unified framework for (1) ontologies formalised in heterogeneous logics, (2) modular ontologies, (3) links between ontologies, and (4) annotatio...
Article
Full-text available
Mathematics is a ubiquitous foundation of science, technology, and engineering. Specific areas of mathematics, such as numeric and symbolic computation or logics, enjoy considerable software support. Working mathematicians have recently started to adopt Web 2.0 environments, such as blogs and wikis, but these systems lack machine support for knowle...
Article
Full-text available
Artificial intelligence (AI) systems are increasingly used in health and personalized care. However, the adoption of data-driven approaches in many clinical settings has been hampered due to their inability to perform in a reliable and safe manner to leverage accurate and trustworthy diagnoses. A critical and challenging usage scenario for AI is ai...
Chapter
Shared vocabularies and ontologies are essential for many applications. Although standards and recommendations already cover many areas, adaptations are usually necessary to represent concrete use-cases properly. Domain experts are unfamiliar with ontology engineering, which creates special requirements for needed tool support. Simple sketch applic...
Conference Paper
Full-text available
Shared vocabularies and ontologies are essential for many applications. Although standards and recommendations already cover many areas, adaptations are usually necessary to represent concrete use-cases properly. Domain experts are unfamiliar with ontology engineering, which creates special requirements for needed tool support. Simple sketch applic...
Technical Report
Full-text available
This position paper demonstrates how elements of the International Data Spaces Reference Architecture Model fit to the GAIA-X principles and architecture elements described in the Technical Architecture whitepaper. The view is based on the June 2020 documents, which are the latest Technical documents available. Also, recent architectural decisions...
Article
Full-text available
Systematic assessment of scientific events has become increasingly important for research communities. A range of metrics (e.g., citations, h-index) have been developed by different research communities to make such assessments effectual. However, most of the metrics for assessing the quality of less formal publication venues and events have not ye...
Chapter
Full-text available
The International Data Spaces initiative (IDS) is building an ecosystem to facilitate data exchange in a secure, trusted, and semantically interoperable way. It aims at providing a basis for smart services and cross-company business processes, while at the same time guaranteeing data owners’ sovereignty over their content. The IDS Information Model...
Preprint
Full-text available
Large amounts of geospatial data have been made available recently on the linked open data cloud and the portals of many national cartographic agencies (e.g., OpenStreetMap data, administrative geographies of various countries, or land cover/land use data sets). These datasets use various geospatial vocabularies and can be queried using SPARQL or i...
Article
Full-text available
One of the key channels of scholarly knowledge exchange are scholarly events such as conferences, workshops, symposiums, etc.; such events are especially important and popular in Computer Science, Engineering, and Natural Sciences. However, scholars encounter problems in finding relevant information about upcoming events and statistics on their his...
Conference Paper
Full-text available
The past decades have witnessed a huge growth in scholarly information published on the Web, mostly in unstructured or semi-structured formats, which hampers scientific literature exploration and scientometric studies. Past studies on ontologies for structuring scholarly information focused on describing scholarly articles' components, such as docu...
Chapter
Full-text available
Scientific events have become a key factor of scholarly communication for many scientific domains. They are considered as the focal point for establishing scientific relations between scholarly objects such as people (e.g., chairs and participants), places (e.g., location), actions (e.g., roles of participants), and artifacts (e.g., proceedings) in...
Chapter
Full-text available
In this work, we tackle the problem of generating comprehensive overviews of research findings in a structured and comparable way. To bring structure to such information and thus to enable researchers to, e.g., explore domain overviews, we present an approach for automatic unveiling of realm overviews for research artifacts (Aurora), an approach to...
Chapter
Full-text available
Recently, semantic data have become more distributed. Available datasets should serve non-technical as well as technical audience. This is also the case with our EVENTSKG dataset, a comprehensive knowledge graph about scientific events, which serves the entire scientific and library community. A common way to query such data is via SPARQL queries....
Poster
Full-text available
In this work, we tackle the problem of generating comprehensive overviews of research findings in a structured and comparable way. To bring structure to such information and thus to enable researchers to, e.g., explore domain overviews, we present an approach for automatic unveiling of realm overviews for research artifacts (Aurora), an approach to...
Preprint
Full-text available
Scientific events have become a key factor of scholarly communication for many scientific domains. They are considered as the focal point for establishing scientific relations between scholarly objects such as people (e.g., chairs and participants), places (e.g., location), actions (e.g., roles of participants), and artifacts (e.g., proceedings) in...
Preprint
Full-text available
Recently, semantic data have become more distributed. Available datasets increasingly serve non-technical as well as technical audience. This is also the case with our EVENTSKG dataset, a comprehensive knowledge graph about scientific events, which serves the entire scientific and library community. A common way to query such data is via SPARQL que...
Chapter
Full-text available
Metadata of scientific events has become increasingly available on the Web, albeit often as raw data in various formats, disregarding its semantics and interlinking relations. This leads to restricting the usability of this data for, e.g., subsequent analyses and reasoning. Therefore, there is a pressing need to represent this data in a semantic re...
Technical Report
Full-text available
The International Data Spaces (IDS) are virtual data spaces leveraging existing standards and technologies, as well as governance models, well-accepted in the data economy, to facilitate secure and standardized data exchange and data linkage in a trusted business ecosystem. It thereby provides a basis for creating smart service scenarios and facili...
Preprint
Full-text available
Nowadays the organization of scientific events, as well as submission and publication of papers, has become considerably easier than before. Consequently , metadata of scientific events is increasingly available on the Web, al-beit often as raw data in various formats, immolating its semantics and interlink-ing relations. This leads to restricting...
Article
Full-text available
An increasing number of scientific publications are created in open and transparent peer review models: a submission is published first, and then reviewers are invited, or a submission is reviewed in a closed environment but then these reviews are published with the final article, or combinations of these. Reasons for open peer review include givin...
Preprint
Full-text available
Digitization and online services such as collaborative authoring content management, submission systems, registration and conference management have dramatically eased the preparation of manuscripts, as well as the organization of scholarly events. Consequently, meta-data of these events becomes increasingly available on the web, albeit often as ra...
Preprint
An increasing number of scientific publications are created in open and transparent peer review models: a submission is published first, and then reviewers are invited, or a submission is reviewed in a closed environment but then these reviews are published with the final article, or combinations of these. Reasons for open peer review include givin...
Conference Paper
Full-text available
Large amounts of geospatial data have been made available recently on the linked open data cloud and on the portals of many national cartographic agencies (e.g., OpenStreetMap data, administrative geographies of various countries, or land cover/land use data sets). These datasets use various geospatial vocabularies and can be queried using SPARQL o...
Conference Paper
Full-text available
Institutions from different domains require the integration of data coming from heterogeneous Web sources. Typical use cases include Knowledge Search, Knowledge Building, and Knowledge Completion. We report on the implementation of the RDF Molecule-Based Integration Framework MINTE+ in three domain-specific applications: Law Enforcement, Job Market...
Preprint
Full-text available
Information emanating from scientific events, journal, organizations , institutions as well as scholars become increasingly available online. Therefore, there is a great demand to assess, analyze and organize this huge amount of data produced every day, or even every hour. In this paper, we present a dataset (EVENTS) of scientific events, containin...
Chapter
Full-text available
Although digitization has significantly eased publishing, finding a relevant and a suitable channel of publishing remains challenging. Scientific events such as conferences, workshops or symposia are among the most popular channels, especially in computer science, natural sciences, and technology. To obtain a better understanding of scholarly commu...
Chapter
Full-text available
Knowledge graphs represent the meaning of properties of real-world entities and relationships among them in a natural way. Exploiting semantics encoded in knowledge graphs enables the implementation of knowledge-driven tasks such as semantic retrieval, query processing, and question answering, as well as solutions to knowledge discovery tasks inclu...
Article
The increasing adoption of the Linked Data principles brought with it an unprecedented dimension to the Web, transforming the traditional Web of Documents to a vibrant information ecosystem, also known as the Web of Data. This transformation, however, does not come without any pain points. Similar to the Web of Documents, the Web of Data is heterog...
Preprint
Full-text available
Knowledge graphs represent the meaning of properties of real-world entities and relationships among them in a natural way. Exploiting semantics encoded in knowledge graphs enables the implementation of knowledge-driven tasks such as semantic retrieval, query processing, and question answering, as well as solutions to knowledge discovery tasks inclu...
Preprint
Full-text available
Although digitization has significantly eased publishing, finding a relevant and a suitable channel of publishing remains challenging. Scientific events such as conferences, workshops or symposia are among the most popular channels , especially in computer science, natural sciences, and technology. To obtain a better understanding of scholarly comm...
Conference Paper
Full-text available
Modern question answering (QA) systems need to flexibly integrate a number of components specialised to fulfil specific tasks in a QA pipeline. Key QA tasks include Named Entity Recognition and Disambiguation, Relation Extraction, and Query Building. Since a number of different software components exist that implement different strategies for each...
Article
Full-text available
Collaborative scientific authoring is increasingly being supported by software tools. Traditionally, desktop-based authoring tools had the most advanced editing features, allowed for more formatting options, and included more import/export filters. Web-based tools have excelled in their collaboration support. Recently, developers on both sides have...
Preprint
Full-text available
The way how research is communicated using text publications has not changed much over the past decades. We have the vision that ultimately researchers will work on a common structured knowledge base comprising comprehensive semantic and machine-comprehensible descriptions of their research, thus making research contributions transparent and compar...
Preprint
The increasing adoption of the Linked Data principles brought with it an unprecedented dimension to the Web, transforming the traditional Web of Documents to a vibrant information ecosystem, also known as the Web of Data. This transformation , however, does not come without any pain points. Similar to the Web of Documents, the Web of Data is hetero...
Chapter
Full-text available
Digitization has made the preparation of manuscripts as well as the organization of scientific events considerably easier and efficient. In addition, data about scientific events is increasingly published on the Web, albeit often as raw dumps in unstructured formats, immolating its semantics and relationships to other data and thus restricting the...
Chapter
Full-text available
Information emanating from scientific events, journal, organizations, institutions as well as scholars become increasingly available online. Therefore, there is a great demand to assess, analyze and organize this huge amount of data produced every day, or even every hour. In this paper, we present a dataset (EVENTS) of scientific events, containing...
Chapter
Full-text available
We propose the new cloud-based service OpenResearch for managing and analyzing data about scientific events such as conferences and workshops in a persistent and reliable way. This includes data about scientific articles, participants, acceptance rates, submission numbers, impact values as well as organizational details such as program committees,...
Conference Paper
Full-text available
Transforming natural language questions into formal queries is an integral task in Question Answering (QA) systems. QA systems built on knowledge graphs like DBpedia, require a step after natural language processing for linking words, specifically including named entities and relations, to their corresponding entities in a knowledge graph. To achie...
Conference Paper
Full-text available
Following the Linked Data principles means maximizing the reusability of data over the Web. Reuse of datasets can become apparent when datasets are linked to from other datasets, and referred in scientific articles or community discussions. It can thus be measured, similarly to citations of papers. In this paper we propose dataset reuse metrics and...
Article
Full-text available
We propose the new cloud-based service OpenResearch for managing and analyzing data about scientific events such as conferences and workshops in a persistent and reliable way. This includes data about scientific articles, participants, acceptance rates, submission numbers, impact values as well as organizational details such as program committees,...
Conference Paper
The digitization of the industry requires information models describing assets and information sources of companies to enable the semantic integration and interoperable exchange of data. We report on a case study in which we realized such an information model for a global manufacturing company using semantic technologies. The information model is c...
Conference Paper
CEUR-WS.org is a widely used open access repository for computer science workshop proceedings. To publish a proceedings volume there, workshop organisers have to follow a complex, error-prone workflow, which mainly involves the creation and submission of an HTML table of contents. With ceur-make we had previously provided a command-line tool for pa...
Conference Paper
Full-text available
Despite significant advances in technology, the way how research is done and especially communicated has not changed much. We have the vision that ultimately researchers will work on a common knowledge base comprising comprehensive descriptions of their research, thus making research contributions transparent and comparable. The current approach fo...
Conference Paper
Full-text available
Over the past 30 years we have observed the impact of the ubiquitous availability of the Internet, email, and web-based services on scholarly communication. The preparation of manuscripts as well as the organisation of conferences, from submission to peer review to publication, have become considerably easier and efficient. A key question now is wh...
Conference Paper
Full-text available
Important questions about the scientific community, e.g., what authors are the experts in a certain field, or are actively engaged in international collaborations, can be answered using publicly available datasets. However, data required to answer such questions is often scattered over multiple isolated datasets. Recently, the Knowledge Graph (KG)...
Conference Paper
Full-text available
OpenAIRE, the Open Access Infrastructure for Research in Europe, aggregates metadata about research (projects, publications, people, organizations, etc.) into a central Information Space. OpenAIRE aims at increasing interoperability and reusability of this data collection by exposing it as Linked Open Data (LOD). By following the LOD principles, it...
Article
Ontologies are increasingly being developed on web-based repository hosting platforms such as GitHub. Accordingly, there is a demand for ontology editors which can be easily connected to the hosted repositories. TurtleEditor is a web-based RDF editor that provides this capability and supports the distributed development of ontologies on repository...
Conference Paper
Full-text available
The demand for interfaces that allow users to interact with computers in an intuitive, effective, and efficient way is increasing. Question Answering (QA) systems address this need by answering questions posed by humans using knowledge bases. In recent years, many QA systems and related components have been developed both by practitioners and the r...
Conference Paper
Full-text available
The nature of the RDF data model allows for numerous descriptions of the same entity. For example, different RDF vocabularies may be utilized to describe pharmacogenomic data, and the same drug or gene is represented by different RDF graphs in DBpedia or Drug-bank. To provide a unified representation of the same real-world entity, RDF graphs need t...