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Author

Efthymios Georgiou

3 papers indexed here

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#artificial intelligence Preprint Sep 2026

Attention-Aware Routing: Coupling Routing and Attention in MoEs

In Mixture-of-Experts language models, the router typically selects and weights experts based on the token's hidden state, utilizing limited contextual information. We propose Attention-Aware Routing (AAR), which augments the router with temporal and spectral features extracted from a sliding window of attention weight...

Despoina Kosmopoulou, Anastasios Tsetsilas, Efthymios Georgiou et al. · 0 citations
#natural language process... Preprint Sep 2026

The Illusion of Balanced Multimodal Sentiment Analysis: Beyond the Limits of Optimization-Based Methods

A unified evaluation framework testing gradient and loss-based balancing strategies under controlled settings, and a theoretical diagnosis explaining why these methods fail, as they conflate fitting speed with discriminative contribution are provided.

Ioanna Kaffeza, Efthymios Georgiou, A. Potamianos · 0 citations
#machine learning Preprint Sep 2026

Deterministic Prompting for Speaker-Stable Low-Resource Greek TTS

Modern TTS systems approach human quality for high-resource languages but degrade when clean speech data is scarce. Modern Greek exemplifies this, lacking the curated corpora behind state-of-the-art synthesis. We propose a data curation recipe that transforms audiobook recordings into TTS-ready data via WhisperX alignm...

Georgios Syllas, Efthymios Georgiou, Kosmas Kritsis et al. · 0 citations

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