Dimitris Vrakas

According to our database, Dimitris Vrakas authored at least 61 papers between 2001 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Unsupervised machine learning techniques for energy consumption tariff design.

Georgios Tsakiris, Nikolaos Virtsionis Gkalinikis, Stavros Mischos, Dimitrios Vrakas

Proceedings of the 13th Hellenic Conference on Artificial Intelligence, 2024

SGAN: Appliance Signatures Data Generation for NILM Applications Using GANs.

Christina Gkoutroumpi, Nikolaos Virtsionis Gkalinikis, Dimitrios Vrakas

Proceedings of the Intelligent Computing, 2024

2023

Does noise affect housing prices? A case study in the urban area of Thessaloniki.

Georgios Kamtziridis, Dimitris Vrakas, Grigorios Tsoumakas

EPJ Data Sci., December, 2023

SAED: self-attentive energy disaggregation.

Nikolaos Virtsionis Gkalinikis, Christoforos Nalmpantis, Dimitris Vrakas

Mach. Learn., November, 2023

Intelligent energy management systems: a review.

Stavros Mischos, Eleana Dalagdi, Dimitrios Vrakas

Artif. Intell. Rev., October, 2023

Variational Regression for Multi-Target Energy Disaggregation.

Nikolaos Virtsionis Gkalinikis, Christoforos Nalmpantis, Dimitris Vrakas

Sensors, February, 2023

From Robot Self-Localization to Global-Localization: An RSSI Based Approach.

Athanasios Lentzas, Dimitris Vrakas

Proceedings of the Third Workshop on Agents and Robots for reliable Engineered Autonomy, 2023

2022

Neural Fourier Energy Disaggregation.

Christoforos Nalmpantis, Nikolaos Virtsionis Gkalinikis, Dimitris Vrakas

Sensors, 2022

Multilabel Classification Methods for Human Activity Recognition: A Comparison of Algorithms.

Athanasios Lentzas, Eleana Dalagdi, Dimitris Vrakas

Sensors, 2022

Noise invariant feature pooling for the internet of audio things.

Christoforos Nalmpantis, Lazaros Vrysis, Danai Vlachava, Lefteris Papageorgiou, Dimitris Vrakas

Multim. Tools Appl., 2022

An Open-Ended Web Knowledge Retrieval Framework for the Household Domain With Explanation and Learning Through Argumentation.

Alexandros Vassiliades, Nick Bassiliades, Theodore Patkos, Dimitris Vrakas

Int. J. Semantic Web Inf. Syst., 2022

Machine learning approaches for non-intrusive home absence detection based on appliance electrical use.

Athanasios Lentzas, Dimitris Vrakas

Expert Syst. Appl., 2022

Intelligent Emergency Evacuation Systems for Buildings.

Zoi Kelepiri, Athanasios Lentzas, Dimitrios Vrakas

Proceedings of the 26th Pan-Hellenic Conference on Informatics, 2022

2021

Entropy Based Feature Pooling in Speech Command Classification.

Christoforos Nalmpantis, Lazaros Vrysis, Danai Vlachava, Lefteris Papageorgiou, Dimitris Vrakas

Proceedings of the Intelligent Computing, 2021

2020

On time series representations for multi-label NILM.

Christoforos Nalmpantis, Dimitris Vrakas

Neural Comput. Appl., 2020

Non-intrusive human activity recognition and abnormal behavior detection on elderly people: a review.

Athanasios Lentzas, Dimitris Vrakas

Artif. Intell. Rev., 2020

LadyBug. An Intensity based Localization Bug Algorithm.

Athanasios Lentzas, Dimitris Vrakas

Proceedings of the 25th IEEE International Conference on Emerging Technologies and Factory Automation, 2020

Attention in Recurrent Neural Networks for Energy Disaggregation.

Nikolaos Virtsionis Gkalinikis, Christoforos Nalmpantis, Dimitris Vrakas

Proceedings of the Discovery Science - 23rd International Conference, 2020

2019

Machine learning approaches for non-intrusive load monitoring: from qualitative to quantitative comparation.

Christoforos Nalmpantis, Dimitris Vrakas

Artif. Intell. Rev., 2019

A Theoretical Analysis of Pooling Operation Using Information Theory.

Christoforos Nalmpantis, Athanasios Lentzas, Dimitris Vrakas

Proceedings of the 31st IEEE International Conference on Tools with Artificial Intelligence, 2019

Hyperparameter Tuning using Quantum Genetic Algorithms.

Athanasios Lentzas, Christoforos Nalmpantis, Dimitris Vrakas

Proceedings of the 31st IEEE International Conference on Tools with Artificial Intelligence, 2019

A Benchmark Framework to Evaluate Energy Disaggregation Solutions.

Nikolaos Symeonidis, Christoforos Nalmpantis, Dimitris Vrakas

Proceedings of the Engineering Applications of Neural Networks, 2019

Signal2Vec: Time Series Embedding Representation.

Christoforos Nalmpantis, Dimitris Vrakas

Proceedings of the Engineering Applications of Neural Networks, 2019

Imaging Time-Series for NILM.

Lamprini Kyrkou, Christoforos Nalmpantis, Dimitris Vrakas

Proceedings of the Engineering Applications of Neural Networks, 2019

2018

Preface.

Antonis Bikakis, Nick Bassiliades, Dimitris Vrakas

Int. J. Artif. Intell. Tools, 2018

AI in Greece: The Case of Research on Linked Geospa al Data.

Manolis Koubarakis, George A. Vouros, Georgios Chalkiadakis, Vassilis P. Plagianakos, Christos Tjortjis, Ergina Kavallieratou, Dimitris Vrakas, Nikolaos Mavridis, Georgios Petasis, Konstantinos Blekas, Anastasia Krithara

AI Mag., 2018

Energy profile representation in vector space.

Christoforos Nalmpantis, Odysseas Krystalakos, Dimitris Vrakas

Proceedings of the 10th Hellenic Conference on Artificial Intelligence, 2018

Sliding Window Approach for Online Energy Disaggregation Using Artificial Neural Networks.

Odysseas Krystalakos, Christoforos Nalmpantis, Dimitris Vrakas

Proceedings of the 10th Hellenic Conference on Artificial Intelligence, 2018

2016

The Tomaco Hybrid Matching Framework for SAWSDL Semantic Web Services.

Thanos G. Stavropoulos, Stelios Andreadis, Nick Bassiliades, Dimitris Vrakas, Ioannis P. Vlahavas

IEEE Trans. Serv. Comput., 2016

A smart university platform for building energy monitoring and savings.

Thanos G. Stavropoulos, George Koutitas, Dimitris Vrakas, Efstratios Kontopoulos, Ioannis P. Vlahavas

J. Ambient Intell. Smart Environ., 2016

A planning problem validator based on reachability analysis.

Moses Symeonidis, Dimitris Giouroukis, Dimitris Vrakas

Proceedings of the 9th Hellenic Conference on Artificial Intelligence, 2016

2015

Rule-based approaches for energy savings in an ambient intelligence environment.

Thanos G. Stavropoulos, Efstratios Kontopoulos, Nick Bassiliades, John Argyriou, Antonis Bikakis, Dimitris Vrakas, Ioannis P. Vlahavas

Pervasive Mob. Comput., 2015

Semantically Aware Web Service Composition Through AI Planning.

Ourania Hatzi, Mara Nikolaidou, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

Int. J. Artif. Intell. Tools, 2015

2014

Policies Production System for Ambient Intelligence Environments.

Nikos P. Kotsiopoulos, Dimitris Vrakas

Proceedings of the Artificial Intelligence: Methods and Applications, 2014

2013

The PORSCE II framework: using AI planning for automated Semantic Web service composition.

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

Knowl. Eng. Rev., 2013

aWESoME: A web service middleware for ambient intelligence.

Thanos G. Stavropoulos, Konstantinos Gottis, Dimitris Vrakas, Ioannis P. Vlahavas

Expert Syst. Appl., 2013

A survey of service composition in ambient intelligence environments.

Thanos G. Stavropoulos, Dimitris Vrakas, Ioannis P. Vlahavas

Artif. Intell. Rev., 2013

Iridescent: a tool for rapid semantic annotation of web service descriptions.

Thanos G. Stavropoulos, Dimitris Vrakas, Ioannis P. Vlahavas

Proceedings of the 3rd International Conference on Web Intelligence, Mining and Semantics, 2013

2012

An Integrated Approach to Automated Semantic Web Service Composition through Planning.

Ourania Hatzi, Dimitris Vrakas, Mara Nikolaidou, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

IEEE Trans. Serv. Comput., 2012

BOnSAI: a smart building ontology for ambient intelligence.

Thanos G. Stavropoulos, Dimitris Vrakas, Danai Vlachava, Nick Bassiliades

Proceedings of the 2nd International Conference on Web Intelligence, Mining and Semantics, 2012

IRISPortal: a semantic portal for industrial risk cases management.

Georgios Meditskos, Nick Bassiliades, Dimitris Vrakas, Ioannis P. Vlahavas

Proceedings of the 2nd International Conference on Web Intelligence, Mining and Semantics, 2012

2011

A System for Energy Savings in an Ambient Intelligence Environment.

Thanos G. Stavropoulos, Dimitris Vrakas, Alexandros Arvanitidis, Ioannis P. Vlahavas

Proceedings of the Information and Communication on Technology for the Fight against Global Warming, 2011

Web Service Composition Plans in OWL-S.

Eva Ziaka, Dimitris Vrakas, Nick Bassiliades

Proceedings of the Agents and Artificial Intelligence - Third International Conference, 2011

Translating Web Services Composition Plans to OWL-S Descriptions.

Eva Ziaka, Dimitris Vrakas, Nick Bassiliades

Proceedings of the ICAART 2011 - Proceedings of the 3rd International Conference on Agents and Artificial Intelligence, Volume 1, 2011

A Framework for Access Control with Inference Constraints.

Vasilios Katos, Dimitris Vrakas, Panagiotis Katsaros

Proceedings of the 35th Annual IEEE International Computer Software and Applications Conference, 2011

2010

A visual programming system for automated problem solving.

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

Expert Syst. Appl., 2010

Semantic Awareness in Automated Web Service Composition through Planning.

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

Proceedings of the Artificial Intelligence: Theories, 2010

System Architecture for a Smart University Building.

Thanos G. Stavropoulos, Ageliki Tsioliaridou, George Koutitas, Dimitris Vrakas, Ioannis P. Vlahavas

Proceedings of the Artificial Neural Networks - ICANN 2010, 2010

2009

Semantic Web Service Composition Using Planning and Ontology Concept Relevance.

Ourania Hatzi, Georgios Meditskos, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

Proceedings of the 2009 IEEE/WIC/ACM International Conference on Web Intelligence, 2009

2008

An ontology-based planning system for e-course generation.

Efstratios Kontopoulos, Dimitris Vrakas, Fotis Kokkoras, Nick Bassiliades, Ioannis P. Vlahavas

Expert Syst. Appl., 2008

A Synergy of Planning and Ontology Concept Ranking for Semantic Web Service Composition.

Ourania Hatzi, Georgios Meditskos, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis P. Vlahavas

Proceedings of the Advances in Artificial Intelligence, 2008

2006

Towards Automatic Synthesis of Educational Resources Through Automated Planning.

Dimitris Vrakas, Fotis Kokkoras, Nick Bassiliades, Ioannis P. Vlahavas

Proceedings of the Advances in Artificial Intelligence, 4th Helenic Conference on AI, 2006

2005

A Visualization Environment for Planning.

Dimitris Vrakas, Ioannis P. Vlahavas

Int. J. Artif. Intell. Tools, 2005

Hybrid ACE: Combining Search Directions for Heuristic Planning.

Dimitris Vrakas, Ioannis P. Vlahavas

Comput. Intell., 2005

HAPRC: an automatically configurable planning system.

Dimitris Vrakas, Grigorios Tsoumakas, Nick Bassiliades, Ioannis P. Vlahavas

AI Commun., 2005

2004

Ευφυή συστήματα σχεδιασμού ενεργειών

Dimitris Vrakas

PhD thesis, 2004

Using the k-Nearest Problems for Adaptive Multicriteria Planning.

Grigorios Tsoumakas, Dimitris Vrakas, Nick Bassiliades, Ioannis P. Vlahavas

Proceedings of the Methods and Applications of Artificial Intelligence, 2004

Lazy Adaptive Multicriteria Planning.

Grigorios Tsoumakas, Dimitris Vrakas, Nick Bassiliades, Ioannis P. Vlahavas

Proceedings of the 16th Eureopean Conference on Artificial Intelligence, 2004

2003

Learning Rules for Adaptive Planning.

Dimitris Vrakas, Grigorios Tsoumakas, Nick Bassiliades, Ioannis P. Vlahavas

Proceedings of the Thirteenth International Conference on Automated Planning and Scheduling (ICAPS 2003), 2003

2002

A Heuristic for Planning Based on Action Evaluation.

Dimitris Vrakas, Ioannis P. Vlahavas

Proceedings of the Artificial Intelligence: Methodology, 2002

2001

Parallel planning via the distribution of operators.

Dimitris Vrakas, Ioannis Refanidis, Ioannis P. Vlahavas

J. Exp. Theor. Artif. Intell., 2001