Hierarchical Block Matching Motion Estimation on a Hypercube Multiprocessor. - Charalampos Konstantopoulos; Andreas Svolos; Christos Kaklamanis (ACPC, 1999)

Efficient shape transformations on a massively parallel processor. - Andreas I. Svolos; Charalampos Konstantopoulos; Christos Kaklamanis (Electronic Imaging: Nonlinear Image Processing, 1999)

Sliding-Window Compression on the Hypercube (Research Note). - Charalampos Konstantopoulos; Andreas Svolos; Christos Kaklamanis (Euro-Par, 2000)

fficient Binary Morphological Algorithms on a Massively Parallel Processor. - Andreas Svolos; Charalampos Konstantopoulos; Christos Kaklamanis (IPDPS, 2000)

An efficient parallel algorithm for motion estimation in very low bit-rate video coding systems. - Charalampos Konstantopoulos; Andreas Svolos; Christos Kaklamanis (Concurr. Pract. Exp., 2000)

A Hypercube Algorithm for Sliding Window Compression. - Christos Kaklamanis; Charalampos Konstantopoulos; Andreas Svolos (Parallel Process. Lett., 2000)

Παράλληλες υλοποήσεις θεμελιωδών εργαλείων της τεχνολογίας των πολυμέσων - Charalampos Konstantopoulos (2000)

A hypercube parallel algorithm in texture analysis. - Andreas Svolos; Charalampos Konstantopoulos; Christos Kaklamanis (SIP, 2001)

Efficient primitive binary morphological algorithms on a massively parallel processor. - Andreas Svolos; Charalampos Konstantopoulos; Christos Kaklamanis (J. Electronic Imaging, 2001)

A Parallel Solution in Texture Analysis Employing a Massively Parallel Processor (Research Note). - Andreas Svolos; Charalampos Konstantopoulos; Christos Kaklamanis (Euro-Par, 2002)

Efficient binary and grey level morphological operations on a massively parallel processor. - Andreas Svolos; Charalampos Konstantopoulos; Christos Kaklamanis (Parallel Algorithms Appl., 2004)

Optimal Embedding of the Hypercube on Partitioned Optical Passive Stars Networks. - Christos Kaklamanis; Charalampos Konstantopoulos (Euro-Par, 2005)

Efficient Active Clustering of Mobile Ad-Hoc Networks. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (Panhellenic Conference on Informatics, 2005)

Efficient BSP/CGM Algorithms for Text Retrieval. - Damianos Gavalas; Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou (IASTED PDCS, 2005)

An Efficient and Scalable Clustering Algorithm for Wireless Ad Hoc Networks. - Damianos Gavalas; Grammati E. Pantziou; Basilis Mamalis; Charalampos Konstantopoulos (IASTED PDCS, 2005)

Clustering of Mobile Ad Hoc Networks: An Adaptive Broadcast Period Approach. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (ICC, 2006)

A Mobility Aware Technique for Clustering on Mobile Ad-Hoc Networks. - Charalampos Konstantopoulos; Damianos Gavalas; Grammati E. Pantziou (ICDCN, 2006)

A Method for Incremental Data Fusion in Distributed Sensor Networks. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (AIAI, 2006)

Stable and Energy Efficient Clustering of Wireless Ad-Hoc Networks with LIDAR Algorithm. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (PWC, 2006)

Deriving Efficient Mobile Agent Routes in Wireless Sensor Networks with NOID Algorithm. - Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (PIMRC, 2007)

Defending Wireless Sensor Networks from Jamming Attacks. - Aristides Mpitziopoulos; Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos (PIMRC, 2007)

LIDAR: a protocol for stable and energy-efficient clustering of ad-hoc multihop networks. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (Telecommun. Syst., 2007)

Optimal hypercube simulation on the partitioned optical passive stars network. - Charalampos Konstantopoulos; Christos Kaklamanis (J. Supercomput., 2007)

Exploiting the cloning capability of Mobile Agents for cost-effective data fusion in wireless sensor networks. - Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (ISCC, 2008)

Hazard monitoring for visually impaired people enabled by wireless sensor networking technology. - Aristides Mpitziopoulos; Charalampos Konstantopoulos; Damianos Gavalas; Grammati E. Pantziou (PETRA, 2008)

Clustering in mobile ad hoc networks through neighborhood stability-based mobility prediction. - Charalampos Konstantopoulos; Damianos Gavalas; Grammati E. Pantziou (Comput. Networks, 2008)

ABP: a low-cost, energy-efficient clustering algorithm for relatively static and quasi-static MANETs. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (Int. J. Sens. Networks, 2008)

Interactive Cluster-Based Personalized Retrieval on Large Document Collections. - Petros Belsis; Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou; Christos Skourlas (New Directions in Intelligent Interactive Multimedia, 2008)

Mobile Agent Middleware for Autonomic Data Fusion in Wireless Sensor Networks. - Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (Autonomic Computing and Networking, 2009)

Mobile Sinks for Information Retrieval from Cluster-Based WSN Islands. - Grammati E. Pantziou; Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Basilis Mamalis (ADHOC-NOW, 2009)

A scheme for on-site service provision in pervasive assistive environments. - Grammati E. Pantziou; Petros Belsis; Damianos Gavalas; Charalampos Konstantopoulos; Basilis Mamalis (PETRA, 2009)

A survey on jamming attacks and countermeasures in WSNs. - Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (IEEE Commun. Surv. Tutorials, 2009)

JAID: An algorithm for data fusion and jamming avoidance on distributed sensor networks. - Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (Pervasive Mob. Comput., 2009)

Efficient parallel Text Retrieval techniques on Bulk Synchronous Parallel (BSP)/Coarse Grained Multicomputers (CGM). - Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou; Damianos Gavalas (J. Supercomput., 2009)

Near-optimal personalized daily itineraries for a mobile tourist guide. - Michael Kenteris; Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos (ISCC, 2010)

CBID: A Scalable Method for Distributed Data Aggregation in WSNs. - Aristides Mpitziopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (Int. J. Distributed Sens. Networks, 2010)

Effective Determination of Mobile Agent Itineraries for Data Aggregation on Sensor Networks. - Charalampos Konstantopoulos; Aristides Mpitziopoulos; Damianos Gavalas; Grammati E. Pantziou (IEEE Trans. Knowl. Data Eng., 2010)

An approach for near-optimal distributed data fusion in wireless sensor networks. - Damianos Gavalas; Aristides Mpitziopoulos; Grammati E. Pantziou; Charalampos Konstantopoulos (Wirel. Networks, 2010)

Personalized routes for mobile tourism. - Damianos Gavalas; Michael Kenteris; Charalampos Konstantopoulos; Grammati E. Pantziou (WiMob, 2011)

Mobility in Wireless Sensor Networks. - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos (Comput. J., 2011)

Lowest-ID with Adaptive ID Reassignment: A Novel Mobile Ad-Hoc Networks Clustering Algorithm - Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos; Basilis Mamalis (CoRR, 2011)

A pervasive assistive environment for visually impaired people using wireless sensor network infrastructure. - Aristides Mpitziopoulos; Charalampos Konstantopoulos; Damianos Gavalas; Grammati E. Pantziou (J. Netw. Comput. Appl., 2011)

Watershed-Based Clustering for Energy Efficient Data Gathering in Wireless Sensor Networks with Mobile Collector. - Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou; Vasileios Thanasias (Euro-Par, 2012)

Web application for recommending personalised mobile tourist routes. - Damianos Gavalas; Michael Kenteris; Charalampos Konstantopoulos; Grammati E. Pantziou (IET Softw., 2012)

User-Directed, Cluster-Based Retrieval for Large Document Collections in Highly Parallel Environments. - Petros Belsis; Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou; Christos Skourlas (Int. J. Comput. Their Appl., 2012)

A Rendezvous-Based Approach Enabling Energy-Efficient Sensory Data Collection with Mobile Sinks. - Charalampos Konstantopoulos; Grammati E. Pantziou; Damianos Gavalas; Aristides Mpitziopoulos; Basilis Mamalis (IEEE Trans. Parallel Distributed Syst., 2012)

A survey on mobile tourism Recommender Systems. - Damianos Gavalas; Vlasios Kasapakis; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou (ICCIT, 2013)

Cluster-Based Heuristics for the Team Orienteering Problem with Time Windows. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou; Yiannis Tasoulas (SEA, 2013)

Special issue: Reactive wireless sensor networks. - Charalampos Konstantopoulos; Paolo Bellavista; Chi-Fu Huang; Damla Turgut (Comput. Commun., 2013)

Efficient Heuristics for the Time Dependent Team Orienteering Problem with Time Windows. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou; Nikolaos Vathis (ICAA, 2014)

Benchmarking mobile agent itinerary planning algorithms for data aggregation on WSNs. - Ioannis E. Venetis; Grammati E. Pantziou; Damianos Gavalas; Charalampos Konstantopoulos (ICUFN, 2014)

An efficient event handling protocol for Wireless Sensor and Actor Networks. - Charalampos Konstantopoulos; Ioannis E. Venetis; Grammati E. Pantziou; Damianos Gavalas (ISCC, 2014)

Efficient mobile sink-based data gathering in wireless sensor networks with guaranteed delay. - Charalampos Konstantopoulos; Grammati E. Pantziou; Nikolaos Vathis; Vasileios Nakos; Damianos Gavalas (MOBIWAC, 2014)

A personalized multimodal tourist tour planner. - Damianos Gavalas; Vlasios Kasapakis; Charalampos Konstantopoulos; Grammati E. Pantziou; Nikolaos Vathis; Christos D. Zaroliagis (MUM, 2014)

A survey on algorithmic approaches for solving tourist trip design problems. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou (J. Heuristics, 2014)

Mobile recommender systems in tourism. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou (J. Netw. Comput. Appl., 2014)

An evolutionary approach to multi-objective ship weather routing. - Aphrodite Veneti; Charalampos Konstantopoulos; Grammati E. Pantziou (IISA, 2015)

An Iterated Local Search Approach for Multiple Itinerary Planning in Mobile Agent-Based Sensor Fusion. - Damianos Gavalas; Ioannis E. Venetis; Grammati E. Pantziou; Charalampos Konstantopoulos (MSN, 2015)

Efficient Delay-Constrained Data Collection in Wireless Sensor Networks Using Mobile Sinks. - Charalampos Konstantopoulos; Nikolaos Vathis; Grammati E. Pantziou; Damianos Gavalas (WMNC, 2015)

Wireless sensor network deployment for remote elderly care monitoring. - Athanasios Dasios; Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos (PETRA, 2015)

Heuristics for the time dependent team orienteering problem: Application to tourist route planning. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou; Nikolaos Vathis (Comput. Oper. Res., 2015)

Design and Management of Vehicle Sharing Systems: A Survey of Algorithmic Approaches. - Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou (CoRR, 2015)

The eCOMPASS multimodal tourist tour planner. - Damianos Gavalas; Vlasios Kasapakis; Charalampos Konstantopoulos; Grammati E. Pantziou; Nikolaos Vathis; Christos D. Zaroliagis (Expert Syst. Appl., 2015)

Approximation algorithms for the arc orienteering problem. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou; Nikolaos Vathis (Inf. Process. Lett., 2015)

Hands-On Experiences in Deploying Cost-Effective Ambient-Assisted Living Systems. - Athanasios Dasios; Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos (Sensors, 2015)

An image processing inspired mobile sink solution for energy efficient data gathering in wireless sensor networks. - Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou; Vasileios Thanasias (Wirel. Networks, 2015)

Time-Dependent Bi-Objective Itinerary Planning Algorithm: Application in Sea Transportation. - Aphrodite Veneti; Charalampos Konstantopoulos; Grammati E. Pantziou (ATMOS, 2016)

A composite algorithm for the team orienteering problem with time windows. - Charalampos Konstantopoulos; Dimitrios Orfanos (IISA, 2016)

Incentivization schemes for vehicle allocation in one-way vehicle sharing systems. - Alexandros Angelopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Damianos Kypriadis; Grammati E. Pantziou (ISC2, 2016)

Scenic Athens: A personalized scenic route planner for tourists. - Damianos Gavalas; Vlasios Kasapakis; Grammati E. Pantziou; Charalampos Konstantopoulos; Nikolaos Vathis; Konstantinos Mastakas; Christos D. Zaroliagis (ISCC, 2016)

An Optimization Model for the Strategic Design of a Bicycle Sharing System: A Case Study in the City of Athens. - Alexandros Angelopoulos; Damianos Gavalas; Charalampos Konstantopoulos; Damianos Kypriadis; Grammati E. Pantziou (PCI, 2016)

Efficient Metaheuristics for the Mixed Team Orienteering Problem with Time Windows. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou; Nikolaos Vathis (Algorithms, 2016)

Efficient event handling in Wireless Sensor and Actor Networks: An on-line computation approach. - Charalampos Konstantopoulos; Grammati E. Pantziou; Ioannis E. Venetis; Damianos Gavalas (J. Netw. Comput. Appl., 2016)

Energy-efficient multiple itinerary planning for mobile agents-based data aggregation in WSNs. - Damianos Gavalas; Ioannis E. Venetis; Charalampos Konstantopoulos; Grammati E. Pantziou (Telecommun. Syst., 2016)

Eco-aware vehicle routing in urban environments. - Julian Dibbelt; Dionisis D. Kehagias; Grammati E. Pantziou; Damianos Gavalas; Charalampos Konstantopoulos; Dorothea Wagner; Kalliopi Giannakopoulou; Spyros C. Kontogiannis; Christos D. Zaroliagis (ISCC, 2017)

Multimodal route and tour planning in urban environments. - Julian Dibbelt; Charalampos Konstantopoulos; Dorothea Wagner; Damianos Gavalas; Spyros C. Kontogiannis; Christos D. Zaroliagis; Vlasios Kasapakis; Grammati E. Pantziou (ISCC, 2017)

Minimizing the fuel consumption and the risk in maritime transportation: A bi-objective weather routing approach. - Aphrodite Veneti; Angelos Makrygiorgos; Charalampos Konstantopoulos; Grammati E. Pantziou; Ioannis A. Vetsikas (Comput. Oper. Res., 2017)

Mobile agent itinerary planning for WSN data fusion: considering multiple sinks and heterogeneous networks. - Damianos Gavalas; Ioannis E. Venetis; Charalampos Konstantopoulos; Grammati E. Pantziou (Int. J. Commun. Syst., 2017)

Scenic route planning for tourists. - Damianos Gavalas; Vlasios Kasapakis; Charalampos Konstantopoulos; Grammati E. Pantziou; Nikolaos Vathis (Pers. Ubiquitous Comput., 2017)

Renewable Mobility in Smart Cities: Cloud-Based Services. - Damianos Gavalas; Kalliopi Giannakopoulou; Vlasios Kasapakis; Dionisis D. Kehagias; Charalampos Konstantopoulos; Spyros C. Kontogiannis; Damianos Kypriadis; Grammati E. Pantziou; Andreas Paraskevopoulos; Christos D. Zaroliagis (ISCC, 2018)

Minimum Walking Static Repositioning in Free-Floating Electric Car-Sharing Systems. - Damianos Kypriadis; Grammati E. Pantziou; Charalampos Konstantopoulos; Damianos Gavalas (ITSC, 2018)

Secure and trust-aware routing in wireless sensor networks. - Charalampos Konstantopoulos; Basilis Mamalis; Grammati E. Pantziou (PCI, 2018)

Employing mobile elements for delay-constrained data gathering in WSNs. - Charalampos Konstantopoulos; Nikolaos Vathis; Grammati E. Pantziou; Damianos Gavalas (Comput. Networks, 2018)

Mobile agents-based data aggregation in WSNs: benchmarking itinerary planning approaches. - Ioannis E. Venetis; Damianos Gavalas; Grammati E. Pantziou; Charalampos Konstantopoulos (Wirel. Networks, 2018)

Enhanced Buying Experiences in Smart Cities: The SMARTBUY Approach. - Lorena Bourg; Thomas Chatzidimitris; Ioannis Chatzigiannakis; Damianos Gavalas; Kalliopi Giannakopoulou; Vlasios Kasapakis; Charalampos Konstantopoulos; Damianos Kypriadis; Grammati E. Pantziou; Christos D. Zaroliagis (AmI, 2019)

An Efficient Scheme for Dynamic Car Relocation in Free-Floating Car-Sharing Systems. - Damianos Kypriadis; Charalampos Konstantopoulos; Grammati E. Pantziou; Damianos Gavalas (ISC2, 2019)

An Efficient Heuristic for the Vacation Planning Problem. - Damianos Gavalas; Charalampos Konstantopoulos; Grammati E. Pantziou; Nikolaos Vathis (UEMCON, 2019)

A Location History-Aware Retail Product Recommender System. - Thomas Chatzidimitris; Damianos Gavalas; Vlasios Kasapakis; Charalampos Konstantopoulos; Damianos Kypriadis; Grammati E. Pantziou; Christos D. Zaroliagis (WiMob, 2019)

Efficient Cluster-Based Heuristics for the Team Orienteering Problem with Time Windows. - Damianos Gavalas; Charalampos Konstantopoulos; Konstantinos Mastakas; Grammati E. Pantziou (Asia Pac. J. Oper. Res., 2019)

A location history-aware recommender system for smart retail environments. - Thomas Chatzidimitris; Damianos Gavalas; Vlasios Kasapakis; Charalampos Konstantopoulos; Damianos Kypriadis; Grammati E. Pantziou; Christos D. Zaroliagis (Pers. Ubiquitous Comput., 2020)

Optimizing Relocation Cost in Free-Floating Car-Sharing Systems. - Damianos Kypriadis; Grammati E. Pantziou; Charalampos Konstantopoulos; Damianos Gavalas (IEEE Trans. Intell. Transp. Syst., 2020)

Perceptions and needs of health professionals concerning health information systems. - Konstantinos Milioris; Charalampos Konstantopoulos; Konstantinos Papageorgiou (Informatica (Slovenia), 2022)

The Vacation Planning Problem: A multi-level clustering-based metaheuristic approach. - Nikolaos Vathis; Charalampos Konstantopoulos; Grammati E. Pantziou; Damianos Gavalas (Comput. Oper. Res., 2023)

Enhancing shopping experiences in smart retailing. - Lorena Bourg; Thomas Chatzidimitris; Ioannis Chatzigiannakis; Damianos Gavalas; Kalliopi Giannakopoulou; Vlasios Kasapakis; Charalampos Konstantopoulos; Damianos Kypriadis; Grammati E. Pantziou; Christos D. Zaroliagis (J. Ambient Intell. Humaniz. Comput., 2023)

Clustered-NSGA-II+: A Multi-Objective Evolutionary Genetic Algorithm for Solving the Ride-Sharing Problem with the Same Destination. - Emmanouil Bakiris; Charalampos Konstantopoulos (IISA, 2024)

Solving the Regular Language-Constrained Team Orienteering Problem with Time Windows for Route Planning Applications. - Nikolaos Vathis; Grammati E. Pantziou; Charalampos Konstantopoulos; Damianos Gavalas (ISCC, 2024)

The regular language-constrained orienteering problem with time windows. - Nikolaos Vathis; Grammati E. Pantziou; Charalampos Konstantopoulos; Damianos Gavalas (Appl. Soft Comput., 2024)