Konstantinos I. Roumeliotis

25 papers Journal 25

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A Large-Scale Empirical Study of LLM Orchestration and Ensemble Strategies for Sentiment Analysis in Recommender Systems. Future Internet Konstantinos I. Roumeliotis, Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2026	J	`jnl`	AI Agents vs. Agentic AI: A Conceptual taxonomy, applications and challenges. Inf. Fusion Ranjan Sapkota, Konstantinos I. Roumeliotis, Manoj Karkee
2026	J	`jnl`	Agentic AI With Orchestrator-Agent Trust: A Modular Visual Classification Framework With Trust-Aware Orchestration and RAG-Based Reasoning. IEEE Access Konstantinos I. Roumeliotis, Ranjan Sapkota, Manoj Karkee, Nikolaos D. Tselikas
2025	J	`jnl`	A Review of 3D Object Detection with Vision-Language Models. CoRR Ranjan Sapkota, Konstantinos I. Roumeliotis, Rahul Harsha Cheppally, Marco Flores-Calero, Manoj Karkee
2025	J	`jnl`	AI Agents vs. Agentic AI: A Conceptual Taxonomy, Applications and Challenges. CoRR Ranjan Sapkota, Konstantinos I. Roumeliotis, Manoj Karkee
2025	J	`jnl`	Fake News Detection and Classification: A Comparative Study of Convolutional Neural Networks, Large Language Models, and Natural Language Processing Models. Future Internet Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2025	J	`jnl`	Generalization vs. Specialization: Evaluating Segment Anything Model (SAM3) Zero-Shot Segmentation Against Fine-Tuned YOLO Detectors. CoRR Ranjan Sapkota, Konstantinos I. Roumeliotis, Manoj Karkee, Nikolaos D. Tselikas
2025	J	`jnl`	LLMs for product classification in e-commerce: A zero-shot comparative study of GPT and claude models. Nat. Lang. Process. J. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2025	J	`jnl`	Optimizing Airline Review Sentiment Analysis: A Comparative Analysis of LLaMA and BERT Models through Fine-Tuning and Few-Shot Learning. Comput. Mater. Continua Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2025	J	`jnl`	Orchestrator-Agent Trust: A Modular Agentic AI Visual Classification System with Trust-Aware Orchestration and RAG-Based Reasoning. CoRR Konstantinos I. Roumeliotis, Ranjan Sapkota, Manoj Karkee, Nikolaos D. Tselikas
2025	J	`jnl`	Plant Disease Detection through Multimodal Large Language Models and Convolutional Neural Networks. CoRR Konstantinos I. Roumeliotis, Ranjan Sapkota, Manoj Karkee, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2025	J	`jnl`	The SAM2-to-SAM3 Gap in the Segment Anything Model Family: Why Prompt-Based Expertise Fails in Concept-Driven Image Segmentation. CoRR Ranjan Sapkota, Konstantinos I. Roumeliotis, Manoj Karkee
2025	J	`jnl`	UAVs Meet Agentic AI: A Multidomain Survey of Autonomous Aerial Intelligence and Agentic UAVs. CoRR Ranjan Sapkota, Konstantinos I. Roumeliotis, Manoj Karkee
2025	J	`jnl`	Vibe Coding vs. Agentic Coding: Fundamentals and Practical Implications of Agentic AI. CoRR Ranjan Sapkota, Konstantinos I. Roumeliotis, Manoj Karkee
2025	J	`jnl`	Vision-Language-Action Models: Concepts, Progress, Applications and Challenges. CoRR Ranjan Sapkota, Yang Cao, Konstantinos I. Roumeliotis, Manoj Karkee
2025	J	`jnl`	When Multimodal Large Language Models Meet Computer Vision: Progressive GPT Fine-Tuning and Stress Testing. IEEE Access Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2024	J	`jnl`	LLMs and NLP Models in Cryptocurrency Sentiment Analysis: A Comparative Classification Study. Big Data Cogn. Comput. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2024	J	`jnl`	LLMs in e-commerce: A comparative analysis of GPT and LLaMA models in product review evaluation. Nat. Lang. Process. J. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2024	J	`jnl`	Leveraging Large Language Models in Tourism: A Comparative Study of the Latest GPT Omni Models and BERT NLP for Customer Review Classification and Sentiment Analysis. Inf. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2024	J	`jnl`	Precision-Driven Product Recommendation Software: Unsupervised Models, Evaluated by GPT-4 LLM for Enhanced Recommender Systems. Softw. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Dimitrios K. Nasiopoulos
2023	J	`jnl`	A Machine Learning Python-Based Search Engine Optimization Audit Software. Informatics Konstantinos I. Roumeliotis, Nikolaos D. Tselikas
2023	J	`jnl`	ChatGPT and Open-AI Models: A Preliminary Review. Future Internet Konstantinos I. Roumeliotis, Nikolaos D. Tselikas
2022	J	`jnl`	An Effective SEO Techniques and Technologies Guide-map. J. Web Eng. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas
2022	J	`jnl`	Evaluating Progressive Web App Accessibility for People with Disabilities. Network Konstantinos I. Roumeliotis, Nikolaos D. Tselikas
2022	J	`jnl`	Greek Hotels' Web Traffic: A Comparative Study Based on Search Engine Optimization Techniques and Technologies. Digit. Konstantinos I. Roumeliotis, Nikolaos D. Tselikas, Christos Tryfonopoulos