Helder Coelho

Fernando Lopes, Helder Coelho: Concession Strategies for Negotiating Bilateral Contracts in Multi-agent Electricity Markets. DEXA Workshops 2012: 321-325

Helder Coelho: Mind Design - Thinking on Moral Issues. ICAART (1) 2012: 15

João Graça, Helder Coelho: Replicating Hofstede's Cultured Negotiation. PAAMS 2012: 73-79

Fernando Lopes, Helder Coelho: Multi-agent Negotiation in Electricity Markets. EC-Web 2011: 114-123

Milton Corrêa, Helder Coelho: Abstract mental descriptions for agent design. Intelligent Decision Technologies 4(2): 115-131 (2010)

Elisa Boff, Cecilia Dias Flores, Ana Respício, Rosa Vicari, Helder Coelho: Collaborative groups in a medical learning environment. Intelligent Decision Technologies 4(2): 149-158 (2010)

Nuno David, José Castro Caldas, Helder Coelho: Epistemological Perspectives on Simulation III: An introduction. J. Artificial Societies and Social Simulation 13(1) (2010)

Paulo Trigo, Paulo Marques, Helder Coelho: (Virtual) Agents for running electricity markets. Simulation Modelling Practice and Theory 18(10): 1442-1452 (2010)

Fernando Lopes, Helder Coelho: Concession Behaviour in Automated Negotiation. EC-Web 2010: 184-194

Fernando Lopes, Helder Coelho: Bilateral Negotiation in a Multi-agent Supply Chain System. EC-Web 2010: 195-206

Helder Coelho, Antônio Carlos da Rocha Costa, Paulo Trigo: Moral Minds as Multiple-Layer Organizations. IBERAMIA 2010: 254-263

Helder Coelho, Rudi Studer, Michael Wooldridge (Eds.): ECAI 2010 - 19th European Conference on Artificial Intelligence, Lisbon, Portugal, August 16-20, 2010, Proceedings. Frontiers in Artificial Intelligence and Applications 215, IOS Press 2010, isbn 978-1-60750-605-8

Diana F. Adamatti, Jaime Simão Sichman, Helder Coelho: An Analysis of the Insertion of Virtual Players in GMABS Methodology Using the Vip-JogoMan Prototype. J. Artificial Societies and Social Simulation 12(3) (2009)

Francisco Coelho, Helder Coelho: Meta-agency and individual power. Web Intelligence and Agent Systems 7(4): 333-346 (2009)

Paulo Trigo, Helder Coelho: Agent Inferencing Meets the Semantic Web. EPIA 2009: 497-507

Luis Antunes, Davide Nunes, Helder Coelho, João Balsa, Paulo Urbano: Context Switching versus Context Permeability in Multiple Social Networks. EPIA 2009: 547-559

Fernando Lopes, Augusto Q. Novais, Helder Coelho: On the Empirical Evaluation of an Interdisciplinary Framework for Automated Negotiation. HoloMAS 2009: 92-101

Fernando Lopes, Augusto Q. Novais, Helder Coelho: Bilateral Negotiation in a Multi-Agent Energy Market. ICIC (1) 2009: 655-664

Paulo Trigo, Paulo Marques, Helder Coelho: TEMMAS: The Electricity Market Multi-Agent Simulator. IWANN (1) 2009: 569-576

Paulo Trigo, Paulo Marques, Helder Coelho: Electricity Market (Virtual) Agents. MALLOW 2009

Helder Coelho: Future Challenges for Autonomous Systems. Artificial Intelligence: An International Perspective 2009: 39-52

Rosa Vicari, Cecilia Dias Flores, Louise J. Seixas, João Carlos Gluz, Helder Coelho: AMPLIA: A Probabilistic Learning Environment. I. J. Artificial Intelligence in Education 18(4): 347-373 (2008)

João Fernando Marar, Helder Coelho: Human Face Verification Based on Multidimensional Polynomial Powers of Sigmoid (PPS). HEALTHINF (2) 2008: 99-106

João Fernando Marar, Helder Coelho: Multidimensional Polynomial Powers of Sigmoid (PPS) Wavelet Neural Networks. BIOSIGNALS (2) 2008: 261-268

Paulo Trigo, Helder Coelho: A hybrid approach to multi-agent decision-making. ECAI 2008: 413-417

Fernando Lopes, Augusto Q. Novais, Helder Coelho: Towards an Interdisciplinary Framework for Automated Negotiation. EC-Web 2008: 81-91

Fernando Lopes, Augusto Q. Novais, Helder Coelho: The Evolution of Negotiation and Impasse in Two-Party Multi-issue Bargaining. IBERAMIA 2008: 213-222

Paulo Trigo, Helder Coelho: Decisions with multiple simultaneous goals and uncertain causal effects. IFIP AI 2008: 13-22

José Cascalho, Helder Coelho: Tuning agents' behaviours using embedded attributes. Artificial Intelligence and Applications 2007: 157-162

Luis Antunes, João Balsa, Helder Coelho: Agents that collude to evade taxes. AAMAS 2007: 212

Luis Antunes, João Balsa, Helder Coelho: Tax Compliance Through MABS: The Case of Indirect Taxes. EPIA Workshops 2007: 605-617

Moser Silva Fagundes, Rosa Maria Vicari, Helder Coelho: Deliberation Process in a BDI Model with Bayesian Networks. PRIMA 2007: 207-218

João Pedro Neto, Ademar Ferreira, Helder Coelho: On Computation over Chaos Using Neural Networks: Application to Blind Search and Random Number Generation. I. J. Bifurcation and Chaos 16(1): 59-66 (2006)

Leonel Nóbrega, Nuno Jardim Nunes, Helder Coelho: The Meta Sketch Editor. CADUI 2006: 201-214

José Cascalho, Luis Antunes, Milton Corrêa, Helder Coelho: Characterising Agents' Behaviours: Selecting Goal Strategies Based on Attributes. CIA 2006: 402-415

Luis Antunes, Helder Coelho, João Balsa: E*plore-ing the Simulation Design Space. EUMAS 2006

José Cascalho, Helder Coelho: Tuning Behaviours Using Attributes Embedded in an Agents Architecture. EUMAS 2006

Nuno David, Jaime Simão Sichman, Helder Coelho: Simulation as Formal and Generative Social Science: The Very Idea. EUMAS 2006

Paulo Trigo, Anders Jonsson, Helder Coelho: Coordination with Collective and Individual Decisions. IBERAMIA-SBIA 2006: 37-47

Nuno David, Helder Coelho: Around the Empirical and Intentional References of Agent-Based Simulation in the Social Sciences. ICEIS (2) 2006: 31-38

Luis Antunes, João Balsa, Ana Respício, Helder Coelho: Tactical Exploration of Tax Compliance Decisions in Multi-agent Based Simulation. MABS 2006: 80-95

Jaime Simão Sichman, Helder Coelho, Solange Oliveira Rezende (Eds.): Advances in Artificial Intelligence - IBERAMIA-SBIA 2006, 2nd International Joint Conference, 10th Ibero-American Conference on AI, 18th Brazilian AI Symposium, Ribeirão Preto, Brazil, October 23-27, 2006, Proceedings. Lecture Notes in Computer Science 4140, Springer 2006, isbn 3-540-45462-4

Paulo Calado, João Pedro Neto, Helder Coelho: Species Diversity in Evolution of Game Tactics. Int. J. Intell. Games & Simulation 4(1): 67-70 (2005)

Helder Coelho: The Design of Innovation: Lessons from and for Competent Genetic Algorithms by David E. Goldberg. J. Artificial Societies and Social Simulation 8(3) (2005)

Nuno David, Jaime Simão Sichman, Helder Coelho: The Logic of the Method of Agent-Based Simulation in the Social Sciences: Empirical and Intentional Adequacy of Computer Programs. J. Artificial Societies and Social Simulation 8(4) (2005)

Fernando Lopes, Augusto Q. Novais, Nuno J. Mamede, Helder Coelho: A negotiation model for autonomous agents: key features and comparison with existing models. AAMAS 2005: 1211-1212

Nuno David, Jaime Simão Sichman, Helder Coelho: Intentional adequacy of computer programs as the experimental reference of agent-based social simulation. AAMAS 2005: 1359-1360

Paulo Trigo, Helder Coelho: The Multi-Team Formation Defense of Teamwork. CAEPIA 2005: 439-448

José Cascalho, Luis Antunes, Milton Corrêa, Helder Coelho: Toward a Motivated BDI Agent Using Attributes Embedded in Mental States. CAEPIA 2005: 459-469

Leonel Nóbrega, Nuno Jardim Nunes, Helder Coelho: Mapping ConcurTaskTrees into UML 2.0. DSV-IS 2005: 237-248

Paulo Trigo, Helder Coelho: The Multi-team Formation Precursor of Teamwork. EPIA 2005: 560-571

Paulo T. Silva, Luís Moniz, Helder Coelho: The presenter role monitoring capability in a multi-agent environment. IADIS AC 2005: 385-392

Francisco Coelho, Helder Coelho: Meta-Agency and Individual-Power An Experimental Approach. IAT 2005: 414-420

Miguel Silvestre, Maria Pinto-Albuquerque, Maria Beatriz Carmo, Ana Paula Cláudio, João Duarte Cunha, Helder Coelho: A platform for the generation of virtual environments inhabited by intelligent virtual humans. ITiCSE 2005: 402

Francisco Coelho, Helder Coelho: Predictability for Autonomous Decision Support. MABS 2005: 88-98

Leonel Nóbrega, Nuno Jardim Nunes, Helder Coelho: DialogSketch: dynamics of the canonical prototypes. TAMODIA 2005: 19-25

Nuno David, Maria Bruno Marietto, Jaime Simão Sichman, Helder Coelho: The Structure and Logic of Interdisciplinary Research in Agent-Based Social Simulation. J. Artificial Societies and Social Simulation 7(3) (2004)

Fernando Lopes, Nuno J. Mamede, Augusto Q. Novais, Helder Coelho: Negotiation Strategies for Autonomous Computational Agents. ECAI 2004: 38-42

Rosa Maria Vicari, Cecilia Dias Flores, André M. Silvestre, Louise J. Seixas, Marcelo Ladeira, Helder Coelho: A multi-agent intelligent environment for medical knowledge. Artificial Intelligence in Medicine 27(3): 335-366 (2003)

Francisco Coelho, Helder Coelho: Towards Individual Power Design: Rediscovering the Will of Acting Agents. EPIA 2003: 366-378

Maria Bruno Marietto, Nuno David, Jaime Simão Sichman, Helder Coelho: A Classification of Paradigmatic Models for Agent-Based Social Simulation. MABS 2003: 193-208

Helder Coelho: Trust in Virtual Societies Edited by Cristiano Castelfranchi and Yao-Hua Tan. J. Artificial Societies and Social Simulation 5(1) (2002)

Fernando Lopes, Nuno J. Mamede, Augusto Q. Novais, Helder Coelho: A negotiation model for autonomous computational agents: Formal description and empirical evaluation. Journal of Intelligent and Fuzzy Systems 12(3-4): 195-212 (2002)

Fernando Lopes, Nuno J. Mamede, Augusto Q. Novais, Helder Coelho: Negotiation among Autonomous Computational Agents. IBERAMIA 2002: 556-565

Luis Antunes, Leonel Nóbrega, Helder Coelho: BVG Choice in Axelrod's Tribute Model. MABS 2002: 16-25

Nuno David, Jaime Simão Sichman, Helder Coelho: Towards an Emergence-Driven Software Process for Agent-Based Simulatio. MABS 2002: 89-104

Maria Bruno Marietto, Nuno David, Jaime Simão Sichman, Helder Coelho: Requirements Analysis of Agent-Based Simulation Platforms: State of the Art and New Prospects. MABS 2002: 125-141

Luis Antunes, Helder Coelho: On How to Conduct Experimental Research with Self-Motivated Agents. RASTA 2002: 31-47

Nuno David, Jaime Simão Sichman, Helder Coelho: Multiple Society Organisations and Social Opacity: When Agents Play the Role of Observers. SBIA 2002: 63-73

Luis Antunes, Helder Coelho: Towards a Methodology for Experiments with Autonomous Agents. SBIA 2002: 85-96

Paulo Urbano, Luís Moniz, Helder Coelho: The Queen Robots: Behaviour-Based Situated Robots Solving the N-Queens Puzzle. SBIA 2002: 129-139

Luís Miguel Botelho, Helder Coelho: Machinery for Artificial Emotions. Cybernetics and Systems 32(5): 465-506 (2001)

Fernando Lopes, Nuno J. Mamede, Augusto Q. Novais, Helder Coelho: Conflict Management and Negotiation among Intentional Agents. DEXA Workshop 2001: 708-714

Luis Antunes, João Faria, Helder Coelho: Choice: The Key for Autonomy. EPIA 2001: 142-154

Fernando Lopes, Nuno J. Mamede, Augusto Q. Novais, Helder Coelho: Conflict and Negotiation among Intentional Agents. ICEIS (1) 2001: 353-360

Luis Antunes, João Faria, Helder Coelho: Improving Choice Mechanisms within the BVG Architecture. ATAL 2000: 290-304

Fernando Lopes, Nuno J. Mamede, Augusto Q. Novais, Helder Coelho: Towards a Generic Negotiation Model for Intentional Agents. DEXA Workshop 2000: 433-439

Nuno David, Jaime Simão Sichman, Helder Coelho: Agent-Based Social Simulation with Coalitions in Social Reasoning. MABS 2000: 244-265

Luis Antunes, João Faria, Helder Coelho: Autonomy through value-driven goal adoption. IBERAMIA-SBIA 2000 Open Discussion Track 2000: 77-86

José Castro Caldas, Helder Coelho: The Origin of Institutions: socio-economic processes, choice, norms and conventions. J. Artificial Societies and Social Simulation 2(2) (1999)

José Castro Caldas, Helder Coelho: Choice and Institutions in Agent Societies. EPIA 1999: 267-281

Luis Antunes, Helder Coelho: Decisions Based upon Multiple Values: The BVG Agent Architecture. EPIA 1999: 297-311

Fernando Lopes, Nuno J. Mamede, Helder Coelho, Augusto Q. Novais: Negotiation Among Intentional Agents. ICEIS 1999: 768

Luis Antunes, Helder Coelho: Redesigning the Agents' Decision Machinery. IWAI 1999: 121-137

Nuno David, Jaime Simão Sichman, Helder Coelho: Extending Social Reasoning to Cope with Multiple Partner Coalitions. MAAMAW 1999: 175-187

Luís Miguel Botelho, Helder Coelho: Artificial Autonomous Agents with Artificial Emotions. Agents 1998: 449-450

Michael da Costa Móra, José Gabriel Pereira Lopes, Rosa Maria Vicari, Helder Coelho: BDI Models and Systems: Bridging the Gap. ATAL 1998: 11-27

Milton Corrêa, Helder Coelho: From Mental States and Architectures to Agents' Programming. IBERAMIA 1998: 64-75

Milton Corrêa, Rosa Maria Vicari, Helder Coelho: Dynamics in Transition Mental Activit. ICMAS 1998: 409-410

Milton Corrêa, Helder Coelho: Agent's Programming from a Mental States Framework. SBIA 1998: 31-39

Helder Coelho (Ed.): Progress in Artificial Intelligence - IBERAMIA 98, 6th Ibero-American Conference on AI, Lisbon, Portugal, October 5-9, 1998, Proceedings. Lecture Notes in Computer Science 1484, Springer 1998, isbn 3-540-64992-1

Luís Miguel Botelho, Helder Coelho: Emotion-Based Attention Shift in Autonomous Agents. ATAL 1997: 277-291

Michael da Costa Móra, José Gabriel Pereira Lopes, Helder Coelho, Rosa Maria Vicari: Modelling Dynamic Aspects of Intentions. EPIA 1997: 179-194

João Pedro Guerreiro Neto, José Félix Costa, Helder Coelho: Lower Bounds of Computational Power of a Synaptic Calculus. IWANN 1997: 340-348

Graça Gaspar, Helder Coelho: Where Do Intensions Come from?: A Framework for Goals and Intensions Adoption, Derivation and Evolution. EPIA 1995: 115-127

Helder Coelho, Augusto Eusébio, Ernesto Costa: A Closer Look to Artificial Learning Environments. EPIA 1995: 129-142

Helder Coelho, Luis Antunes, Luís Moniz: Building Multi-Agent Societies from Description to Systems: Inter-Layer Translations. EPIA 1995: 143-152

Graça Gaspar, Helder Coelho: Deriving Goals and Intentions. ICMAS 1995: 447

Michael da Costa Móra, José Gabriel Lopes, Helder Coelho: Modeling Intentions with Extended Logic Programming. SBIA 1995: 69-78

Manuel Lameiras Campagnolo, Helder Coelho, Jorge H. Capelo: Knowledge Based Clustering of Partially Characterized Objects. SBIA 1995: 161-170

Milton Corrêa, Helder Coelho: Around the Architectural Agent Approach to Model Conversations. MAAMAW 1993: 172-185

Helder Coelho, Graça Gaspar, Isabel Ramos: Experiments on Achieving Communication in Communities of Autonomous Agents. Decision Support Systems: Experiences and Expectations 1992: 291-308

José Castro Caldas, Helder Coelho: Strategic Interaction in Oligopolistic Markets - Experimenting with Real and Artificial Agents. MAAMAW 1992: 147-163

José Távora, Helder Coelho: A Path Planner for the Cutting of Nested Irregular Layouts. EPIA 1989: 246-256

Helder Coelho: Developing Competence in a Developing Environment. IFIP Congress 1989: 427-433

Helder Coelho, Jose Carlos Cotta: Prolog by Example: How to Learn, Teach and Use It. Springer 1988, isbn 3-540-18313-2

Rosa Maria Viccari, Helder Coelho, Ernesto Costa: Pragmatic attachment devices for conversations with tutors. Applied Artificial Intelligence 2(3-4): 277-284 (1988)

Helder Coelho: Interaction among Intelligent Agents (Panel). ECAI 1988: 717-718

Cristina Sernadas, Helder Coelho, Graça Gaspar: Communication knowledge systems: Part I - Big talk among small systems. Applied Artificial Intelligence 1(3): 233-260 (1987)

Cristina Sernadas, Helder Coelho, Graça Gaspar: Communication knowledge systems. Part II - big talk among small systems. Applied Artificial Intelligence 1(4): 315-335 (1987)

Helder Coelho, Luís Moniz Pereira: Automated Reasoning in Geometry Theorem Proving with Prolog. J. Autom. Reasoning 2(4): 329-390 (1986)

Ronald M. Lee, Helder Coelho, Jose Carlos Cotta: Temporal inferencing on administrative databases. Inf. Syst. 10(2): 197-206 (1985)

Helder Coelho: Symbolic and Algebraic Computation May Support Secondary Education. European Conference on Computer Algebra (2) 1985: 464-465

Helder Coelho: Man-machine communication in Portuguese: a friendly library service system. Inf. Syst. 7(2): 163-181 (1982)

Helder Coelho: A Formalism For The Structural Analysis Of Dialogues. COLING 1982: 61-70