160 citations · 1k across the 30 of their papers we have counts for
8 papers · 1 filter
Social network modeling and applications, a tutorial
Lisette Espín-Noboa, Tiago Peixoto, Fariba Karimi
Social networks have been widely studied over the last century from multiple disciplines to understand societal issues such as inequality in employment rates, managerial performanc…
Link recommendations: Their impact on network structure and minorities
Antonio Ferrara, Lisette Espín-Noboa, Fariba Karimi +1
Network-based people recommendation algorithms are widely employed on the Web to suggest new connections in social media or professional platforms. While such recommendations bring…
Inequality and Inequity in Network-based Ranking and Recommendation Algorithms
Lisette Espín-Noboa, Claudia Wagner, Markus Strohmaier +1
Though algorithms promise many benefits including efficiency, objectivity and accuracy, they may also introduce or amplify biases. Here we study two well-known algorithms, namely P…
Analyzing the network structure and gender differences among the members of the Networked Knowledge Organization Systems (NKOS) community
Fariba Karimi, Philipp Mayr, Fakhri Momeni
In this paper, we analyze a major part of the research output of the Networked Knowledge Organization Systems (NKOS) community in the period 2000 to 2016 from a network analytical…
Towards Quantifying Sampling Bias in Network Inference
Lisette Espín-Noboa, Claudia Wagner, Fariba Karimi +1
Relational inference leverages relationships between entities and links in a network to infer information about the network from a small sample. This method is often used when glob…
Sampling from Social Networks with Attributes
Claudia Wagner, Philipp Singer, Fariba Karimi +2
Sampling from large networks represents a fundamental challenge for social network research. In this paper, we explore the sensitivity of different sampling techniques (node sampli…
The Problem of Action at a Distance in Networks and the Emergence of Preferential Attachment from Triadic Closure
Jérôme Kunegis, Fariba Karimi, Jun Sun
In this paper, we characterise the notion of preferential attachment in networks as action at a distance, and argue that it can only be an emergent phenomenon -- the actual mechani…
Structural differences between open and direct communication in an online community
Fariba Karimi, Verónica C. Ramenzoni, Petter Holme
Most research of online communication focuses on modes of communication that are either open (like forums, bulletin boards, Twitter, etc.) or direct (like e-mails). In this work, w…