A5048326825- Semantic Web and Ontologies
- Information Retrieval and Search Behavior
- Scientific Computing and Data Management
- Research Data Management Practices
- Advanced Database Systems and Queries
- Peer-to-Peer Network Technologies
- Web Data Mining and Analysis
- Data Quality and Management
- Distributed and Parallel Computing Systems
- Data Management and Algorithms
- Recommender Systems and Techniques
- Knowledge Management and Sharing
- Advanced Text Analysis Techniques
- scientometrics and bibliometrics research
- Personal Information Management and User Behavior
- Advanced Data Storage Technologies
- Expert finding and Q&A systems
- Service-Oriented Architecture and Web Services
- Data Visualization and Analytics
- Data Analysis with R
- Biomedical Text Mining and Ontologies
- Multimedia Communication and Technology
- Music and Audio Processing
- Multi-Agent Systems and Negotiation
- Open Education and E-Learning
GESIS - Leibniz-Institute for the Social Sciences
2015-2023
University of Hagen
2007-2016
University of Duisburg-Essen
2004-2007
TU Dortmund University
2000-2002
In this paper, we present an FDO[1] implementation focusing on standardized scientific research data exchange. Using DOIP[2] and Cordra[3] based a concrete FDO model with assumed layers compositions, implement some basic use-cases of exchanging/handling FDOs, introduce services to handle FDOs. We workflows orchestrate the application services. These define foster FDO-based ecosystem data. Our work was funded by German Research Foundation(DFG) within KonsortSWD, consortium for social,...
This paper describes the open access graph dataset that shows connections between Dryad, CERN, ANDS and other international data repositories to publications grants across multiple research infrastructures. The was created using Research Graph model Data Switchboard (RD-Switchboard), a collaborative project by Alliance DDRI Working Group (DDRI WG) with aim discover connect related datasets based on publication co-authorship or jointly funded grants. allows researchers trace follow paths...
Evaluation of digital libraries assesses their effectiveness, quality and overall impact. In this paper we present a novel, multi-level logging framework that will provide complete coverage the different aspects DL usage for user-system interactions. Based on framework, can analyse various stakeholders data according to specific interests. addition, analysis tools freely accessible log repository yield synergies sustainability in evaluation encourage community by providing discussion common ground.
The problem of digital preservation is one the most challenging research problems today and faced by different communities with approaches. As software hardware evolutes receives growing interest researchers practitioners alike. Different approaches have been made to find either individual solutions for specific fields or general theories applicable a wide range domains. With regard aspect that can be seen as communication future, this paper comprehensively reviews presents preservation....
Most information seeking and retrieval systems are designed for individual use, prototype collaborative too limited to support use in heterogeneous environments. Easy Access Digital Libraries (ezDL) attempts bridge this gap by integrating familiar sharing management functions with communication tools into a flexible, scalable network which individuals groups function as nodes.
Abstract This paper describes a novel search index for social and economic research data, one that enables users to up-to-date references data holdings in these disciplines. The can be used comparative analysis of publication datasets different areas science. core the is da|ra registration agency’s database which contains high-quality searchable metadata from registered publishers. Research data’s records are harvested providers around world included index. In this paper, we describe...
The dynamic relationship among survey instruments and study entities like questionnaires, variables, questions, response formats evolve in Social Sciences surveys. Researchers may need to modify variable attributes such as labels or names, question-wording, scales when reusing variables design. Therefore, explaining these relations across different waves studies is necessary track how relate each other. Although standards Data Documentation Initiative – Lifecycle (DDI-LC) DataCite model...