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Konstantinos Plas

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Book Open access Aug 2026

PYTHIA: Universal Question Answering over Knowledge Graphs

PYTHIA is presented, a training-free, plug-and-play solution for KGQA over any RDF KG which consists of an LLM agent guided by a relation-centric conceptual model of the KGQA task which is acted upon through a suite of tools for entity linking, graph exploration and query execution.

Sergios-Anestis Kefalidis, Konstantinos Plas, Manolis Koubarakis · 1 citation
Book Open access Aug 2026

PYTHIA: Universal Question Answering over Knowledge Graphs

Knowledge graph question answering (KGQA) focuses on answering questions with data retrieved from knowledge graphs (KGs). Although Large Language Models (LLMs) have enabled the development of innovative KGQA systems, serious challenges remain. Approaches that utilize supervised finetuning are accurate and responsive, b...

Sergios-Anestis Kefalidis, Konstantinos Plas, Manolis Koubarakis · 0 citations

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