The BEAM: A first EAM Implementation. - Ricardo Lopes; Vítor Santos Costa (APPIA-GULP-PRODE, 1999)

A Novel Implementation of the Extended Andorra Model. - Ricardo Lopes; Vítor Santos Costa; Fernando M. A. Silva (PADL, 2001)

From simulation to practice: cache performance study of a Prolog system. - Ricardo Lopes; Luís Fernando Castro; Vítor Santos Costa (MSP/ISMM, 2002)

On the BEAM Implementation. - Ricardo Lopes; Vítor Santos Costa; Fernando M. A. Silva (EPIA, 2003)

On Deterministic Computations in the Extended Andorra Model. - Ricardo Lopes; Vítor Santos Costa; Fernando M. A. Silva (ICLP, 2003)

Pruning in the Extended Andorra Model. - Ricardo Lopes; Vítor Santos Costa; Fernando M. A. Silva (PADL, 2004)

Exploiting parallelism in the extended andorra model. - Ricardo Lopes; Vítor Santos Costa; Fernando M. A. Silva (Parallel and Distributed Computing and Networks, 2004)

IMPACT: Innovative Models for Prolog with Advanced Control and Tabling. - Ricardo Rocha 001; Ricardo Lopes; Fernando M. A. Silva; Vítor Santos Costa (ICLP, 2005)

Improving Memory Usage in the BEAM. - Ricardo Lopes; Vítor Santos Costa (PADL, 2005)

An External Module for Implementing Linear Tabling in Prolog. - Cláudio Silva 001; Ricardo Rocha 001; Ricardo Lopes (ICLP, 2006)

Demand-Driven Indexing of Prolog Clauses. - Vítor Santos Costa; Konstantinos Sagonas; Ricardo Lopes (ICLP, 2007)

On Applying Program Transformation to Implement Suspension-Based Tabling in Prolog. - Ricardo Rocha 001; Cláudio Silva 001; Ricardo Lopes (ICLP, 2007)

Spatial-Yap: A Logic-Based Geographic Information System. - David Vaz; Michel Ferreira; Ricardo Lopes (ICLP, 2007)

Sketch-Based Interaction and Calligraphic Tags to Create Comics Online. - Ricardo Lopes; Tiago Cardoso; Nelson F. Silva; Manuel J. Fonseca (SBIM, 2009)

Calligraphic Shortcuts for Comics Creation. - Ricardo Lopes; Tiago Cardoso; Nelson F. Silva; Manuel J. Fonseca (Smart Graphics, 2009)

Scenario adaptivity in serious games. - Ricardo Lopes (FDG, 2010)

A semantic generation framework for enabling adaptive game worlds. - Ricardo Lopes; Rafael Bidarra (Advances in Computer Entertainment Technology, 2011)

Adaptivity Challenges in Games and Simulations: A Survey. - Ricardo Lopes; Rafael Bidarra (IEEE Trans. Comput. Intell. AI Games, 2011)

Generating Consistent Buildings: A Semantic Approach for Integrating Procedural Techniques. - Tim Tutenel; Ruben Michaël Smelik; Ricardo Lopes; Klaas Jan de Kraker; Rafael Bidarra (IEEE Trans. Comput. Intell. AI Games, 2011)

Using gameplay semantics to procedurally generate player-matching game worlds. - Ricardo Lopes; Tim Tutenel; Rafael Bidarra (PCG@FDG, 2012)

A design and implementation of the Extended Andorra Model. - Ricardo Lopes; Vítor Santos Costa; Fernando M. A. Silva (Theory Pract. Log. Program., 2012)

A Generic Method for Classification of Player Behavior. - Marlon Etheredge; Ricardo Lopes; Rafael Bidarra (AI in the Game Design Process @ AIIDE, 2013)

Designing Procedurally Generated Levels. - Roland van der Linden; Ricardo Lopes; Rafael Bidarra (AI in the Game Design Process @ AIIDE, 2013)

Gameplay semantics for authoring adaptivity in mobile games. - Ricardo Lopes; Ken Hilf; Luke Jayapalan; Rafael Bidarra (FDG, 2013)

The brain mapping of emotion in human faces: Clinical aplication in epilepsy. - Alberto Leal; Ricardo Lopes; Patrícia Arriaga; Francisco Esteves (MeMeA, 2014)

Procedural Generation of Dungeons. - Roland van der Linden; Ricardo Lopes; Rafael Bidarra (IEEE Trans. Comput. Intell. AI Games, 2014)

Service Systems - Concepts, Modeling, and Programming - Jorge Cardoso 001; Ricardo Lopes; Geert Poels (Springer, 2014)

Authoring Adaptive Game World Generation. - Ricardo Lopes; Elmar Eisemann; Rafael Bidarra (IEEE Trans. Games, 2018)

On the conformance of Android applications with children's data protection regulations and safeguarding guidelines. - Ricardo Lopes; Vinh-Thong Ta; Ioannis Korkontzelos (CoRR, 2023)

MultiTLS: using multiple and diverse ciphers for stronger secure channels. - Ricardo Moura; Ricardo Lopes; David R. Matos; Miguel L. Pardal; Miguel Correia 001 (Comput. Secur., 2023)

CogniChallenge: Multiplayer serious games' platform for cognitive and psychosocial rehabilitation. - Eliana Silva; Ricardo Lopes; Luís Paulo Reis (Int. J. Serious Games, 2023)

A Systematic Approach to Derive Conceptual Models from BPMN Models. - Ricardo Lopes; João Araújo 001; Denis Silva da Silveira; Alberto Sardinha (BMSD, 2024)

GlórIA: A Generative and Open Large Language Model for Portuguese. - Ricardo Lopes; João Magalhães; David Semedo (PROPOR (1), 2024)

Volumetric Techniques for Product Routing and Loading Optimisation in Industry 4.0: A Review. - Ricardo Lopes; Marcello Trovati; Ella Pereira (Future Internet, 2024)

Fine-Grained Food Image Recognition: A Study on Optimising Convolutional Neural Networks for Improved Performance. - Liam Boyd; Nonso Nnamoko; Ricardo Lopes (J. Imaging, 2024)