D. Spiliotopoulos

Optimizing Collaborative Filtering for Accurate Rating Predictions in Very Sparse Datasets
20260 citationsauthor #5
A Large-Scale Empirical Study of LLM Orchestration and Ensemble Strategies for Sentiment Analysis in Recommender Systems
20260 citationsauthor #3
Using Prediction Confidence Factors to Enhance Collaborative Filtering Recommendation Quality
20251 citationsauthor #2
From Rating Predictions to Reliable Recommendations in Collaborative Filtering: The Concept of Recommendation Reliability Classes
20250 citationsauthor #3
An evaluation review of user similarity metrics in sparse collaborative filtering datasets
20252 citationsauthor #3
Fine-Tuning Large Language Models for Ontology Engineering: A Comparative Analysis of GPT-4 and Mistral
202518 citationsauthor #3
AI and Related Technologies in the Fields of Smart Agriculture: A Review
202527 citationsauthor #5
Artificial Intelligence Tools for the Agriculture Value Chain: Status and Prospects
202437 citationsauthor #5
Exploiting Rating Prediction Certainty for Recommendation Formulation in Collaborative Filtering
20247 citationsauthor #3
Improving Recommendation Quality in Collaborative Filtering by Including Prediction Confidence Factors
20242 citationsauthor #3
Assessment of Purchasing Influence of Email Campaigns Using Eye Tracking
20240 citationsauthor #2
Predicting Agricultural Product and Supplies Prices Using Artificial Intelligence
20242 citationsauthor #3
The Implementation of "Smart" Technologies in the Agricultural Sector: A Review
202420 citationsauthor #5
Disruptive Technologies for Parliaments: A Literature Review
202313 citationsauthor #5
Rating Prediction Quality Enhancement in Low-Density Collaborative Filtering Datasets
20233 citationsauthor #3
Chatbots for Cultural Venues: A Topic-Based Approach
20236 citationsauthor #2
A User Interface for Tuning QoS Parameters in Recommendation-Based Business Process Scenario Adaptation
20230 citationsauthor #3
On Exploiting Rating Prediction Accuracy Features in Dense Collaborative Filtering Datasets
20228 citationsauthor #1
A Quality of Experience Illustrator User Interface for Cloud Provider Recommendations
20221 citationsauthor #3
Anchoring Effect Mitigation for Complex Recommender System Design
20220 citationsauthor #2
On Producing Accurate Rating Predictions in Sparse Collaborative Filtering Datasets
202211 citationsauthor #3
Persona Finetuning for Online Gaming Using Personalisation Techniques
20220 citationsauthor #1
Safe Travelling Period Recommendation to High Attack Risk European Destinations Based on Past Attack Information
20211 citationsauthor #1
On Addressing the Low Rating Prediction Coverage in Sparse Datasets Using Virtual Ratings
20213 citationsauthor #2
Facilitating Semantic Interoperability of Trustworthy IoT Entities in Cultural Spaces: The Smart Museum Ontology
202111 citationsauthor #5
Augmenting Black Sheep Neighbour Importance for Enhancing Rating Prediction Accuracy in Collaborative Filtering
20214 citationsauthor #2
Semantic Trajectory Analytics and Recommender Systems in Cultural Spaces
202110 citationsauthor #3
ParlTech: Transformation Framework for the Digital Parliament
202126 citationsauthor #3
A User Interface for Personalising WS-BPEL Scenarios
20211 citationsauthor #2
Social Skills and Online Learning
20212 citationsauthor #2
An Interface for User-Centred Process and Correlation Between Large Datasets
20210 citationsauthor #1
Identifying Reliable Recommenders in Users’ Collaborating Filtering and Social Neighbourhoods
20210 citationsauthor #2
An Algorithm for Density Enrichment of Sparse Collaborative Filtering Datasets Using Robust Predictions as Derived Ratings
202012 citationsauthor #2
Multimodal Interaction: Correlates of Learners' Metacognitive Skill Training Negotiation Experience
20203 citationsauthor #1
Intelligent Collaborative Authoring of Place-Based, Cross-Cultural and Media-Rich Experiences
20201 citationsauthor #2
A User Interface for Personalized Web Service Selection in Business Processes
20206 citationsauthor #2
Semantics-Driven Conversational Interfaces for Museum Chatbots
20207 citationsauthor #1
Database Knowledge Enrichment Utilizing Trending Topics from Twitter
20201 citationsauthor #5
Voice User Interfaces for Service Robots: Design Principles and Methodology
20205 citationsauthor #2
Improving collaborative filtering’s rating prediction accuracy by introducing the experiencing period criterion
20205 citationsauthor #2
What makes a review a reliable rating in recommender systems?
202052 citationsauthor #3
"Talking" Triples to Museum Chatbots
202012 citationsauthor #3
Towards implementing an AI chatbot platform for museums
202031 citationsauthor #6
An integer programming-based algorithm for optimising the WS-BPEL scenario execution adaptation process
20201 citationsauthor #2
Data-Assisted Persona Construction Using Social Media Data
202034 citationsauthor #1
Neighbourhood Aging Factors for Limited Information Social Network Collaborative Filtering
20200 citationsauthor #2
A Semantic Mixed Reality Framework for Shared Cultural Experiences Ecosystems
20209 citationsauthor #3
Human behaviour in multimodal interaction: main effects of civic action and interpersonal and problem-solving skills
202014 citationsauthor #2
Policy Making Analysis and Practitioner User Experience
20202 citationsauthor #3
An Adaptive Social Network-Aware Collaborative Filtering Algorithm for Improved Rating Prediction Accuracy
202028 citationsauthor #3
Ontology engineering methodologies for the evolution of living and reused ontologies: status, trends, findings and recommendations
202075 citationsauthor #3
MOOC Accessibility from the Educator Perspective
20203 citationsauthor #1
On Recommending Safe Travel Periods to High Attack Risk Destinations
20200 citationsauthor #1
Social Relations versus Near Neighbours: Reliable Recommenders in Limited Information Social Network Collaborative Filtering for Online Advertising
201919 citationsauthor #2
Experimental results for considering Virtual Near Neighbors in Collaborative Filtering’s Rating Prediction
20191 citationsauthor #4
Improving Collaborative Filtering’s Rating Prediction Quality by Exploiting the Item Adoption Eagerness Information
20193 citationsauthor #2
A fine-grained social network recommender system
201945 citationsauthor #7
Citizen Engagement for Transparent and Accountable Policy Modelling
20191 citationsauthor #1
Improving Collaborative Filtering’s Rating Prediction Accuracy by Introducing the Common Item Rating Past Criterion
20199 citationsauthor #4
METALOGUE’S VIRTUAL AGENT FOR NEGOTIATION: ITS’ EFFECTS ON LEARNING EXPERIENCE, METACOGNITIVE AND INDIVIDUAL-AND-COMMUNITY-LEVEL ATTITUDES PRE-AND-POST INTERACTION
20192 citationsauthor #3
Handling uncertainty in social media textual information for improving venue recommendation formulation quality in social networks
201927 citationsauthor #3
Data-driven Country Safety Monitoring Terrorist Attack Prediction
20193 citationsauthor #1
Improving Collaborative Filtering’s Rating Prediction Coverage in Sparse Datasets through the Introduction of Virtual Near Neighbors
20198 citationsauthor #4
A Mixed-reality Interaction-driven Game-based Learning Framework
20195 citationsauthor #1
A Methodology for Generated Text Annotation for High Quality Speech Synthesis
20191 citationsauthor #1
The Metalogue Debate Trainee Corpus: Data Collection and Annotations
20188 citationsauthor #9
Social media analysis during political turbulence
201749 citationsauthor #2
Visual Cue Streams for Multimodal Dialogue Interaction
20172 citationsauthor #5
Implementing Digital Parliament Innovative Concepts for Citizens and Policy Makers
201711 citationsauthor #4
Reveal: Fine-grained Recommendations in Online Social Networks
20171 citationsauthor #4
Motivation Effect of Social Media Posts about Well-being and Healthy Living
20165 citationsauthor #1
Metalogue: A Multimodal Learning Journey
20163 citationsauthor #3
Usability Evaluation of Accessible Complex Graphs
20160 citationsauthor #1
Investigating the complete corpus of referendum and elections tweets
201626 citationsauthor #2
Enhancing the Trustworthiness of Service On-Demand Systems via Smart Vote Filtering
20150 citationsauthor #4
WHERE GREEK TEXT TO SPEECH FAILS : REQUIREMENTS FOR SPEECH SYNTHESIS IN SPOKEN DIALOGUE SYSTEMS
20151 citationsauthor #2
Technically Challenging Human Factors Issues for a Policy Argumentation Approach
20150 citationsauthor #1
Speech Enabled Ontology Graph Navigation and Editing
20152 citationsauthor #1
Metalogue: A Multiperspective Multimodal Dialogue System with Metacognitive Abilities for Highly Adaptive and Flexible Dialogue Management
201424 citationsauthor #10
Need Driven Prototype Design for a Policy Modeling Authoring Interface
20143 citationsauthor #1
Pilot Scenario Design for Evaluating a Metacognitive Skills Learning Dialogue System
20142 citationsauthor #1
2014 International Conference on Intelligent Environments (IE)
20140 citationsauthor #10
Priority: Fp7-ict-2009-6 Challenge 4 – " Digital Libraries and Content " D4.3 Opinion Mining V2 Arcomem Consortium 45 Ter Rue De La Revolution 93100 Montreuil France Work Package Participants Change Log
20140 citationsauthor #4
Sentiment Analysis for Reputation Management: Mining the Greek Web
201432 citationsauthor #2
The ARCOMEM Architecture for Social- and Semantic-Driven Web Archiving
201423 citationsauthor #14
Accessibility Driven Design for Policy Argumentation Modelling
20143 citationsauthor #1
Analysing and Enriching Focused Semantic Web Archives for Parliament Applications
201423 citationsauthor #10
Digital Archives: Semantic Search and Retrieval
20134 citationsauthor #1
SUMAT: An Online Service for Subtitling by Machine Translation
20130 citationsauthor #8
Relation Visualization for Semantically Enriched Web Content
20130 citationsauthor #1
Interacting with Topics in Digital Archives
20130 citationsauthor #1
User Perception Knowledge for Socially-Aware Web Document Accessibility
20130 citationsauthor #1
Usability Design and Testing of an Interface for Search and Retrieval of Social Web Data
20130 citationsauthor #1
CASAM: collaborative human-machine annotation of multimedia
20139 citationsauthor #9
SMS 2013 PC Co-Chairs Message
20130 citationsauthor #1
The Iterative Design and Evaluation Approach for a Socially-aware Search and Retrieval Application for Digital Archiving
20130 citationsauthor #1
On the Identification and Annotation of Emotional Properties of Verbs
20132 citationsauthor #5
Arcomem: Archive Comunities Memories Priority: Fp7-ict-2009-6 Challenge 4 – " Digital Libraries and Content " D3.2 Extraction and Enrichment
20120 citationsauthor #2
SUMAT - An online service for SUbtitling by MAchine Translation
20126 citationsauthor #8
Resource Evaluation for Usable Speech Interfaces: Utilizing Human-Human Dialogue
20122 citationsauthor #2

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