Author

Emmanouil Perakakis

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Open access Sep 2026

Replacing Undefined Earned Media Value Metrics with a Rigorous Mention Quality and Impact (MQI) and Mention Earned Media Value (mEMV) Framework

Traditional Earned Media Value (EMV) calculations suffer from methodological limitations by depending on oversimplified and outdated proxies like Advertising Value Equivalency (AVE). In service marketing, where offerings are intangible and consumers cannot inspect an offering before purchase, trust relies heavily on au...

Eleftherios Xenarios, Ioannis Kapantaidakis, Emmanouil Perakakis · International Conference on... · 0 citations

Open access Jul 2026

Efficient Sentiment, Emotion, and Toxic Speech Analysis on Social Media Using Lightweight LLMs: A Practical Approach for Digital Transformation

This study provides operational guidelines regarding model selection based on latency, accuracy, and cost trade-offs as well as optimal prompt engineering techniques to help researchers and developers integrate LLM-based social media analytics into digitized business practices.

Ioannis Kapantaidakis, Ioannis Kopanakis, Emmanouil Perakakis et al. · Applied System Innovation · 0 citations