Author

Y. Ioannidis

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Preprint Oct 2026

NousDB - A Fast Query Engine for Semantic Analytics

Semantic data analytics systems integrate AI-powered operators into query pipelines, enabling declarative queries over structured and unstructured data. However, existing systems rely on per-tuple model invocations, ad hoc operator designs, and lack principled cost models, resulting in poor scalability and limited opti...

Christos Tsapelas, Georgia Koutrika, Y. Ioannidis · 0 citations

Review Sep 2026

View, Review, Repeat: Towards Design Guidelines for 360° Virtual Experiences

360° panoramic virtual experiences have become a widely adopted medium for enabling remote exploration of cultural heritage sites and tourist destinations. Compared to fully immersive virtual reality systems, these experiences provide accessible, cost-effective web-based environments that allow users to navigate panora...

Lori Kougioumtzian, A. Katifori, D. Petousi et al. · Journal on Computing and Cul... · 0 citations