S. Chatzichristofis

发表

Roland Siegwart, Marc Pollefeys, Elias B. Kosmatopoulos, 2014 .

Selection of the proper Compact Composite Descriptor for improving content based image retrieval

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Y. Boutalis, 2009 .

Inverse Transform Sampling for Bibliometric Literature Analysis

A. Langousis, N. Bakas, V. Plevris, 2022, 2022 13th International Conference on Information, Intelligence, Systems & Applications (IISA).

An intelligent decision support model for staff selection based on the application of the Fuzzy Delphi Method and the Fuzzy Analytical Hierarchical Process

Konstantinos Zagoris, S. Chatzichristofis, Antonios Paraskevas, 2022, 2022 13th International Conference on Information, Intelligence, Systems & Applications (IISA).

Bibliometric Literature Review of Adaptive Learning Systems

A. Langousis, N. Bakas, V. Plevris, 2022, Sustainability.

DARP: Divide Areas Algorithm for Optimal Multi-Robot Coverage Path Planning

Athanasios Ch. Kapoutsis, E. Kosmatopoulos, S. Chatzichristofis, 2017, Journal of Intelligent & Robotic Systems.

A Novel Image Retrieval Based on Visual Words Integration of SIFT and SURF

Savvas A. Chatzichristofis, Hafiz Adnan Habib, Muhammad Rashid, 2016, PloS one.

Dynamic Two-Stage Image Retrieval from Large Multimodal Databases

Avi Arampatzis, Savvas A. Chatzichristofis, Konstantinos Zagoris, 2011, ECIR.

Continuously informed heuristic A∗-optimal path retrieval inside an unknown environment

Elias B. Kosmatopoulos, Savvas A. Chatzichristofis, Athanasios Ch. Kapoutsis, 2017, 2017 IEEE International Symposium on Safety, Security and Rescue Robotics (SSRR).

Educational Robotics: Platforms, Competitions and Expected Learning Outcomes

Savvas A. Chatzichristofis, Lefteris Doitsidis, Kyriakoula Georgiou, 2020, IEEE Access.

Image classification by addition of spatial information based on histograms of orthogonal vectors

Rehan Ashraf, Sohail Jabbar, Bushra Zafar, 2018, PloS one.

Designing and Development of a Robotic Puzzle Solver Using Morphological Associative Memories

S. A. Chatzichristofis, Athanasios Ch. Kapoutsis, Y. Boutalis, 2016 .

Dynamic two-stage image retrieval from large multimedia databases

Avi Arampatzis, Savvas A. Chatzichristofis, Konstantinos Zagoris, 2013, Inf. Process. Manag..

Deep convolutional features for image retrieval

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Spyridon Plakias, 2021, Expert Syst. Appl..

Investigating the Vision Transformer Model for Image Retrieval Tasks pdf

Savvas A. Chatzichristofis, Socratis Gkelios, Yiannis Boutalis, 2021, 2021 17th International Conference on Distributed Computing in Sensor Systems (DCOSS).

Educational Robotics in the Service of the Gestalt Similarity Principle

A. Amanatiadis, S. Chatzichristofis, S. Gkelios, 2022, 2022 IEEE International Conference on Consumer Electronics (ICCE).

Known Unknowns in an Era of Technological and Viral Disruptions—Implications for Theory, Policy, and Practice

S. A. Chatzichristofis, E. Carayannis, Z. Zinonos, 2021, Journal of the Knowledge Economy.

CEDD: Color and Edge Directivity Descriptor: A Compact Descriptor for Image Indexing and Retrieval

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Y. Boutalis, 2008, ICVS.

Integrated Pest Control for the Olive-Fruit Fly: Remote Pest Monitoring and Optimized Bait-Sprays

Savvas A. Chatzichristofis, Lefteris Doitsidis, Ioannis Sarantopoulos, 2017, HAICTA.

Computer Vision Meets Educational Robotics

Savvas A. Chatzichristofis, Lefteris Doitsidis, Aphrodite Sophokleous, 2021, Electronics.

Vision-Controlled Micro Flying Robots: From System Design to Autonomous Navigation and Mapping in GPS-Denied Environments

Roland Siegwart, Marc Pollefeys, Elias B. Kosmatopoulos, 2014, IEEE Robotics & Automation Magazine.

Known Unknowns in an Era of Technological and Viral Disruptions—Implications for Theory, Policy, and Practice

E. Carayannis, Z. Zinonos, K. Christodoulou, 2021, Journal of the Knowledge Economy.

Remote monitoring of the Bactrocera oleae (Gmelin) (Diptera: Tephritidae) population using an automated McPhail trap

Savvas A. Chatzichristofis, Lefteris Doitsidis, G. N. Fouskitakis, 2017, Comput. Electron. Agric..

Composite Description Based on Salient Contours and Color Information for CBIR Tasks

S. A. Chatzichristofis, M. Lux, C. Iakovidou, 2019, IEEE Transactions on Image Processing.

Localizing global descriptors for content-based image retrieval

Mathias Lux, Yiannis S. Boutalis, Savvas A. Chatzichristofis, 2015, EURASIP Journal on Advances in Signal Processing.

Image moment invariants as local features for content based image retrieval using the Bag-of-Visual-Words model

Savvas A. Chatzichristofis, Antonios Gasteratos, Evangelos G. Karakasis, 2015, Pattern Recognit. Lett..

Lire: lucene image retrieval: an extensible java CBIR library

Mathias Lux, Savvas A. Chatzichristofis, M. Lux, 2008, ACM Multimedia.

Bag-of-visual-words vs global image descriptors on two-stage multimodal retrieval

Avi Arampatzis, Savvas A. Chatzichristofis, Konstantinos Zagoris, 2011, SIGIR.

Late fusion of compact composite descriptors for retrieval from heterogeneous image databases

Avi Arampatzis, Savvas A. Chatzichristofis, A. Arampatzis, 2010, SIGIR.

Accurate Image Retrieval Based on Compact Composite Descriptors and Relevance Feedback Information

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Nikos Papamarkos, 2010, Int. J. Pattern Recognit. Artif. Intell..

Grape Leaf Diseases Identification System Using Convolutional Neural Networks and LoRa Technology

Diofantos G. Hadjimitsis, Yiannis S. Boutalis, Savvas A. Chatzichristofis, 2022, IEEE Access.

DARP: Divide Areas Algorithm for Optimal Multi-Robot Coverage Path Planning

Elias B. Kosmatopoulos, Savvas A. Chatzichristofis, Athanasios Ch. Kapoutsis, 2017, J. Intell. Robotic Syst..

Image Encryption Using the Recursive Attributes of the eXclusive-OR Filter on Cellular Automata

Mathias Lux, Yiannis S. Boutalis, Savvas A. Chatzichristofis, 2012, ACRI.

CoMo: a scale and rotation invariant compact composite moment-based descriptor for image retrieval

Savvas A. Chatzichristofis, Angelos Amanatiadis, Nektarios Anagnostopoulos, 2019, Multimedia Tools and Applications.

Searching images with MPEG-7 (& MPEG-7-like) Powered Localized dEscriptors: The SIMPLE answer to effective Content Based Image Retrieval

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Chryssanthi Iakovidou, 2014, 2014 12th International Workshop on Content-Based Multimedia Indexing (CBMI).

Color and Edge Directivity Descriptor on GPGPU

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Chryssanthi Iakovidou, 2015, 2015 23rd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing.

Localizing global descriptors for content-based image retrieval

Athanasios Ch. Kapoutsis, Y. Boutalis, M. Lux, 2015, EURASIP J. Adv. Signal Process..

Health Information Exchange with Blockchain amid Covid-19-like Pandemics

Savvas A. Chatzichristofis, Zinon Zinonos, Klitos Christodoulou, 2020, 2020 16th International Conference on Distributed Computing in Sensor Systems (DCOSS).

ParkChain: An IoT Parking Service Based on Blockchain

Zinon Zinonos, Panayiotis Christodoulou, Andreas Andreou, 2019, 2019 15th International Conference on Distributed Computing in Sensor Systems (DCOSS).

FCTH: Fuzzy Color and Texture Histogram - A Low Level Feature for Accurate Image Retrieval

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Y. Boutalis, 2008, 2008 Ninth International Workshop on Image Analysis for Multimedia Interactive Services.

Towards the Achievement of Path Planning with Multi-robot Systems in Dynamic Environments

L. Doitsidis, S. A. Chatzichristofis, G. Kyprianou, 2021, Journal of Intelligent & Robotic Systems.

Interactive social robots in special education

Savvas A. Chatzichristofis, Vassilis G. Kaburlasos, Angelos Amanatiadis, 2017, 2017 IEEE 7th International Conference on Consumer Electronics - Berlin (ICCE-Berlin).

Automatic summarization and annotation of videos with lack of metadata information

Dim P. Papadopoulos, Savvas A. Chatzichristofis, Nikos Papamarkos, 2013, Expert Syst. Appl..

Text localization using standard deviation analysis of structure elements and support vector machines

Savvas A. Chatzichristofis, Nikos Papamarkos, Konstantinos Zagoris, 2011, EURASIP J. Adv. Signal Process..

Gradient free stochastic training of ANNs, with local approximation in partitions

A. Langousis, N. Bakas, S. Chatzichristofis, 2023, Stochastic Environmental Research and Risk Assessment.

ITSO: a novel inverse transform sampling-based optimization algorithm for stochastic search

A. Langousis, N. Bakas, V. Plevris, 2019, Stochastic Environmental Research and Risk Assessment.

Optimal heuristic trajectories on unknown manifolds by Inverse Integral Sampling

A. Langousis, N. Bakas, V. Plevris, 2019 .

Cellular Automata Ants

Georgios Ch. Sirakoulis, Savvas A. Chatzichristofis, Nikolaos I. Dourvas, 2017 .

RandomBlocks: A Transparent, Verifiable Blockchain-based System for Random Numbers

Georgios Ch. Sirakoulis, Savvas A. Chatzichristofis, Panayiotis Christodoulou, 2019, J. Cell. Autom..

Systematically Improving the Efficiency of Grid-Based Coverage Path Planning Methodologies in Real-World UAVs’ Operations

Athanasios Ch. Kapoutsis, Savvas D. Apostolidis, S. Chatzichristofis, 2023, Drones.

Bin-Picking in the Industry 4.0 Era

Athanasios Ch. Kapoutsis, Z. Zinonos, L. Doitsidis, 2023, 2023 IEEE International Conference on Consumer Electronics (ICCE).

Universal Image Embedding: Retaining and Expanding Knowledge With Multi-Domain Fine-Tuning

Y. Boutalis, S. Chatzichristofis, S. Gkelios, 2023, IEEE Access.

Img(Rummager): An Interactive Content Based Image Retrieval System

Mathias Lux, Yiannis S. Boutalis, Savvas A. Chatzichristofis, 2009, 2009 Second International Workshop on Similarity Search and Applications.

Content based radiology image retrieval using a fuzzy rule based scalable composite descriptor

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Y. Boutalis, 2009, Multimedia Tools and Applications.

A Multi-Objective Exploration Strategy for Mobile Robots Under Operational Constraints

Stergios I. Roumeliotis, Elias B. Kosmatopoulos, Savvas A. Chatzichristofis, 2013, IEEE Access.

A novel cellular automata based technique for visual multimedia content encryption

Georgios Ch. Sirakoulis, Savvas A. Chatzichristofis, Yiannis S. Boutalis, 2010 .

Studying Affective Tutoring Systems for Mathematical Concepts

Savvas A. Chatzichristofis, Dimitrios Mastorodimos, S. Chatzichristofis, 2019, Journal of Educational Technology Systems.

Real-time indexing for large image databases: color and edge directivity descriptor on GPU

Y. Boutalis, A. Amanatiadis, Loukas Bampis, 2015, Journal of Supercomputing.

A LoCATe‐based visual place recognition system for mobile robotics and GPGPUs

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Antonios Gasteratos, 2018, Concurr. Comput. Pract. Exp..

SpCD - Spatial Color Distribution Descriptor - A Fuzzy Rule based Compact Composite Descriptor Appropriate for Hand Drawn Color Sketches Retrieval

Mathias Lux, Yiannis S. Boutalis, Savvas A. Chatzichristofis, 2016, ICAART.

Co.Vi.Wo.: Color Visual Words Based on Non-Predefined Size Codebooks

Yiannis S. Boutalis, Savvas A. Chatzichristofis, Chryssanthi Iakovidou, 2013, IEEE Transactions on Cybernetics.

Investigating the Behavior of Compact Composite Descriptors in Early Fusion, Late Fusion and Distributed Image Retrieval

Yiannis S. Boutalis, Avi Arampatzis, Savvas A. Chatzichristofis, 2010 .

How Smart Are Smartphones?: Bridging the marketing and information technology gap.

Savvas A. Chatzichristofis, Angelos Amanatiadis, A. Amanatiadis, 2014, IEEE Consumer Electronics Magazine.

Dimensionality Reduction for Image Features using Deep Learning and Autoencoders

Mathias Lux, Savvas A. Chatzichristofis, Stefan Petscharnig, 2017, CBMI.

A ROS-Based Autonomous Vehicle Testbed for the Internet of Vehicles

George J. Tsinarakis, L. Doitsidis, G. Arampatzis, 2023, 2023 19th International Conference on Distributed Computing in Smart Systems and the Internet of Things (DCOSS-IoT).

Mean Normalized Retrieval Order (MNRO): a new content-based image retrieval performance measure

Yiannis S. Boutalis, Elli Angelopoulou, Savvas A. Chatzichristofis, 2014, Multimedia Tools and Applications.

A Fuzzy Rule-Based Control System for Fast Line-Following Robots

L. Doitsidis, S. A. Chatzichristofis, G. Eleftheriou, 2020, 2020 16th International Conference on Distributed Computing in Sensor Systems (DCOSS).

Recent Advances in Educational Robotics

S. Chatzichristofis, 2023, Electronics.

Engaging Learners in Educational Robotics: Uncovering Students’ Expectations for an Ideal Robotic Platform

A. Amanatiadis, A. Karousou, S. Chatzichristofis, 2023, Electronics.

A blockchain-based framework for effective monitoring of EU green bonds

S. Chatzichristofis, P. Christodoulou, M. Psillaki, 2023, Finance Research Letters.

Autonomous Driving Through Deep Learning in Video Games: A Visual-Based Perception and Action Approach

S. Chatzichristofis, S. Gkelios, A. Kastellos, 2023, 2023 19th International Conference on Distributed Computing in Smart Systems and the Internet of Things (DCOSS-IoT).