Profile-Based Selection of Expert Groups. - Georgios A. Sfyris; Nikolaos Fragkos; Christos Doulkeridis (TPDL, 2016)

Sentiment Analysis in Online Food Delivery: A Greek Case Study - Abstract. - Nikolaos Fragkos; Anastasios Liapakis; Constantina I. Costopoulou; Maria Ntaliani (HAICTA, 2022)

A Sentiment Analysis Approach for Exploring Customer Reviews of Online Food Delivery Services: A Greek Case. - Nikolaos Fragkos; Anastasios Liapakis; Maria Ntaliani; Filotheos Ntalianis; Constantina I. Costopoulou (Digit., 2024)