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E. Pitoura

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Aug 2026

Provlepsis4j: Querying Future Graphs in Neo4j

Graphs model relationships in social, information, and collaboration networks, where users often need to reason about both the current graph and its possible evolution. However, graph databases such as Neo4j primarily query the present graph, while link-prediction methods typically run as separate workflows that output...

Evangelos Iliadis, Christos Gkartzios, Evaggelia Pitoura · 0 citations
Book Open access Aug 2026

Managing Time in Atemporal Labeled Property Graph Engines: Trade-offs in Representation Strategies

This work formalizes two fundamental representation strategies implemented on top of standard LPG systems: a Versioning strategy that materializes temporal states via topological expansion, and a Property Lists strategy that encapsulates evolution through property-level compression, and identifies workload-dependent cr...

Fotios Kamanis, Georgia Koloniari, Evaggelia Pitoura · 0 citations
#explainable ai Review Sep 2026

On the Interplay of Explainability and Fairness in AI: A Survey

Algorithmic fairness and explainability are foundational pillars of responsible AI. Although often studied independently, their interplay is increasingly recognized as crucial for diagnosing and mitigating bias in machine learning systems. We first introduce two systematic taxonomies: one for algorithmic fairness and o...

Christos Fragkathoulas, Vasiliki Papanikou, Danae Pla Karidi et al. · 0 citations

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