Elisabeth Lex

The Influence of Frequency, Recency and Semantic Context on the Reuse of Tags in Social Tagging Systems

2016

In this paper, we study factors that influence tag reuse behavior in social tagging systems. Our work is guided by the activation equation of the cognitive model ACT-R, which states that the usefulness of information …

International Workshop on Algorithmic Bias in Search and Recommendation (BIAS)

2024

Creating efficient and effective search and recommendation algorithms has been the main objective of industry practitioners and academic researchers over the years. However, recent research has shown how these algorithms trained on historical data lead …

OnSET: Ontology and Semantic Exploration Toolkit

2025

Retrieval over knowledge graphs is typically performed using specialized, complex query languages such as SPARQL.We propose a novel system, Ontology and Semantic Exploration Toolkit (OnSET), that allows novice users to quickly build queries with visual …