David Schoch
Biographic Data
| ID | 635994 |
|---|---|
| NAME | David Schoch |
| GIVEN NAMES | David |
| FAMILY NAME | Schoch |
| SIGNATURE | SCHOCH D |
| AFFILIATIONS | GESIS - Leibniz Institute for the Social Sciences |
| ORCID | 0000-0003-2952-4812 |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 89 |
| AUTHOR COUNT | 8 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 3 |
Software presentation
The interplay of structural features and observed dissimilarities among centrality indices
An abundance of centrality indices has been proposed which capture the importance of nodes in a network based on different structural features. While there remains a persistent belief that similarities in outcomes of indices is contingent on their technical definitions, a growing body of research shows that structural features affect observed similarities more than technicalities. We conduct a series of experiments on artificial networks to trace…
An extended family of measures for directed networks
Projecting signed two-mode networks
Signed two-mode networks have so far predominantly been analyzed using blockmodeling techniques. In this work, we put forward the idea of projecting such networks onto its modes. Two projection methods are introduced which allow the application of known dichotomization tool for weighted networks to obtain a simple signed network. It turns out, however, that resulting networks may contain ambivalent ties, defined as conjunctions of positive and ne…
Political Astroturfing on Twitter
Political astroturfing, a centrally coordinated disinformation campaign in which participants pretend to be ordinary citizens acting independently, has the potential to influence electoral outcomes and other forms of political behavior. Yet, it is hard to evaluate the scope and effectiveness of political astroturfing without “ground truth” information, such as the verified identity of its agents and instigators. In this paper, we study the South …
What do centrality measures measure in psychological networks?
Centrality indices are a popular tool to analyze structural aspects of psychological networks. As centrality indices were originally developed in the context of social networks, it is unclear to what extent these indices are suitable in a psychological network context. In this article we critically examine several issues with the use of the most popular centrality indices in psychological networks: degree, betweenness, and closeness centrality. W…
Centrality without indices
Correlations among centrality indices and a class of uniquely ranked graphs
Political Astroturfing on Twitter
Political astroturfing, a centrally coordinated disinformation campaign in which participants pretend to be ordinary citizens acting independently, has the potential to influence electoral outcomes and other forms of political behavior. Yet, it is hard to evaluate the scope and effectiveness of political astroturfing without “ground truth” information, such as the verified identity of its agents and instigators. In this paper, we study the South …
Correlations among centrality indices and a class of uniquely ranked graphs
Centrality without indices
Software presentation
An extended family of measures for directed networks
Correlations among centrality indices and a class of uniquely ranked graphs
Centrality without indices
What do centrality measures measure in psychological networks?
Centrality indices are a popular tool to analyze structural aspects of psychological networks. As centrality indices were originally developed in the context of social networks, it is unclear to what extent these indices are suitable in a psychological network context. In this article we critically examine several issues with the use of the most popular centrality indices in psychological networks: degree, betweenness, and closeness centrality. W…
Projecting signed two-mode networks
Signed two-mode networks have so far predominantly been analyzed using blockmodeling techniques. In this work, we put forward the idea of projecting such networks onto its modes. Two projection methods are introduced which allow the application of known dichotomization tool for weighted networks to obtain a simple signed network. It turns out, however, that resulting networks may contain ambivalent ties, defined as conjunctions of positive and ne…
Political Astroturfing on Twitter
Political astroturfing, a centrally coordinated disinformation campaign in which participants pretend to be ordinary citizens acting independently, has the potential to influence electoral outcomes and other forms of political behavior. Yet, it is hard to evaluate the scope and effectiveness of political astroturfing without “ground truth” information, such as the verified identity of its agents and instigators. In this paper, we study the South …
An extended family of measures for directed networks
Software presentation
The interplay of structural features and observed dissimilarities among centrality indices
An abundance of centrality indices has been proposed which capture the importance of nodes in a network based on different structural features. While there remains a persistent belief that similarities in outcomes of indices is contingent on their technical definitions, a growing body of research shows that structural features affect observed similarities more than technicalities. We conduct a series of experiments on artificial networks to trace…
Computer Science (8 works) · Complex Network Analysis Techniques (6 works) · Mathematics (6 works) · Centrality (5 works) · Combinatorics (4 works) · Statistics (4 works) · Artificial Intelligence (3 works) · Graph theory and applications (3 works) · Mental Health Research Topics (3 works) · Betweenness centrality (2 works)