Penousal Machado

Penousal Machado is a teacher at the Department of Informatics of the University of Coimbra and a researcher of the Artificial Intelligence Laboratory of CISUC - Centre for Informatics and Systems of the University of Coimbra. His main research interests are Evolutionary Art, Evolutionary Computation and Computational Creativity. More specifically, he is interested in the application of evolutionary computation techniques to the development of artificial artists and computer aided creativity systems.

His most well known research project in the field of evolutionary art is NEvAr. This system started as a traditional interactive evolutionary art tool. However, the inclusion of automated fitness assignment schemes, allows it to autonomously perform aesthetic judgments. The refinement of the aesthetic abilities of NEvAr, over the years, has converted it on what is probably the first Artificial Evolutionary Artist.

He is the author of approximately 50 papers in the fields of Evolutionary Computation, Artificial Art and Artificial Creativity and chair of several scientific events on Artificial Art.

Related projects

05/08/2017

Insta.ants at Romaria Cultural 2017

07/07/2017

Insta.ants at xCoAx 2017

28/06/2017

X-Faces

27/06/2017

Mobiliário Sonoro

27/05/2017

TypeAdviser: a type design aiding-tool

14/06/2017

A Pig, an Angel and a Cactus Walk Into a Blender

10/04/2017

Towards the Evolution of Multi-Layered Neural Networks: A Dynamic Structured Grammatical Evolution Approach

17/03/2017

Automatic Generation of Neural Networks with Structured Grammatical Evolution

Thanks to rustkill for the image.

02/03/2017

Insta.ants

17/02/2017

EvoFashion: Customising Fashion Through Evolution

19/12/2016

Hexagonal Gridded Maps and Information Layers: an Approach for the Exploration and Analysis of Retail Data

06/10/2016

Iso-edges for the geovisualization of consumptions

23/04/2016

The Aesthetics of Routine

23/04/2016

The Rhythm of Consumption

07/08/2015

Evolving Ambiguous Images

20/04/2015

Swarm Systems in the Visualisation of Consumption Patterns

29/01/2015

Calendar Views on Consumption

27/01/2015

Transitions of Customers Among Supermarkets

29/04/2014

Best Paper Award – EvoMUSART 2014

05/02/2010

One day in Lisbon’s traffic

06/03/2014

Sexual Selection Through Mate Choice in Evolutionary Computation

25/04/2014

Photogrowth: Ant Painting

10/03/2014

An ecosystem of corporate politicians

24/07/2013

Visualizing Patterns of Flowand Usage in Wireless Networks

19/03/2013

Visualizing Urban Mobility

04/03/2013

The Garden of Virtual Delights

03/03/2013

Musical Flocks

01/03/2012

Graphic Narratives

28/02/2013

SBIRC — Style Based Image Retrieval and Classification

16/10/2012

Evolutionary Computation for Classifier Assessment and Improvement

01/03/2014

Lisbon’s Blood Vessels

24/10/2011

Evolving Assemblages

24/10/2011

Abstract Ocean Waves

24/10/2011

Visualizing Empires Decline

01/07/2010

Data Book Covers

Articles

  • F. Graça and P. Machado, “Evolving assemblages,” IJART, vol. 8, iss. 2, pp. 167-184, 2015.

  • P. Cruz, A. Cruz, and P. Machado, “Contiguous Animated Edge-Based Cartograms for Traffic Visualization,” IEEE Computer Graphics and Applications, vol. 35, iss. 5, pp. 76-83, 2015.

  • G. Greenfield and P. Machado, “Ant- and Ant-Colony-Inspired ALife Visual Art,” Artificial Life, vol. 21, iss. 3, pp. 293-306, 2015.

  • G. Greenfield and P. Machado, “Swarm Art: Curator’s Introduction,” Leonardo, vol. 47, iss. 1, pp. 5-7, 2014.

  • T. Barrass, A. Eldridge, G. Greenfield, C. Jacob, P. Machado, N. Monmarché, Y. Semet, F. Durand, U. O’Reilly, D. Shiffman, and P. Urbano, “Gallery Artists,” Leonardo, vol. 47, iss. 1, pp. 8-16, 2014.

  • J. C. Dias, P. Machado, D. C. Silva, and P. H. Abreu, “An Inverted Ant Colony Optimization approach to traffic,” Engineering Applications of Artificial Intelligence, vol. 36, pp. 122-133, 2014.

  • A. Leitão, A. Vinhas, P. Machado, and F. Pereira, “A Genetic Algorithms Approach for Inverse Shortest Path Length Problems,” International Journal of Natural Computing Research (IJNCR), vol. 4, iss. 4, pp. 26-54, 2014.

  • J. Romero, P. Machado, and A. Carballal, “Guest editorial: special issue on biologically inspired music, sound, art and design,” Genetic Programming and Evolvable Machines, vol. 14, iss. 3, pp. 281-286, 2013.

  • J. Romero, P. Machado, A. Carballal, and A. Santos, “Using complexity estimates in aesthetic image classification,” Journal of Mathematics and the Arts, vol. 6, iss. 2-3, pp. 125-136, 2012.

  • G. Greenfield and P. Machado, “Guest Editors’ introduction,” Journal of Mathematics and the Arts, vol. 6, iss. 2-3, pp. 59-64, 2012.

  • P. Machado and J. Romero, “On Evolutionary Computer-Generated Art,” The Evolutionary Review: Art, Science, Culture, vol. 2, iss. 1, pp. 156-170, 2011.

  • P. Cruz and P. Machado, “Generative Storytelling for Information Visualization,” IEEE Computer Graphics and Applications, vol. 31, iss. 2, pp. 6-11, 2011.

  • P. Machado, J. Romero, A. Santos, A. Cardoso, and A. Pazos, “On the development of evolutionary artificial artists,” Computers & Graphics, vol. 31, iss. 6, pp. 818-826, 2007.

  • B. Z. Manaris and P. Machado, “Preface,” International Journal on Artificial Intelligence Tools, vol. 15, iss. 4, pp. 491-494, 2006.

  • P. Machado and J. Romero, “CreArt2 — Creative Artificial Artists,” nada, 2005.

  • P. Machado, J. Romero, A. Cardoso, and A. Santos, “Partially Interactive Evolutionary Artists,” New Generation Computing — Special Issue on Interactive Evolutionary Computation, vol. 23, iss. 42, pp. 143-155, 2005.

  • B. Manaris, J. Romero, P. Machado, D. Krehbiel, T. Hirzel, W. Pharr, and R. Davis, “Zipf’s Law, Music Classification and Aesthetics,” Computer Music Journal, vol. 29, iss. 1, pp. 55-69, 2005.

  • A. Cardoso, C. Bento, P. Machado, and F. C. Pereira, “Darwin and creationism reconciled — When computers should surprise us,” i3 magazine — The European Network for Intelligent Information Interfaces, vol. 1, iss. 12, pp. 20-25, 2002.

  • P. Machado, A. Dias, and A. Cardoso, “Learning to Colour Greyscale Images,” The Interdisciplinary Journal of Artificial Intelligence and the Simulation of Behaviour — AISB Journal, vol. 1, iss. 2, pp. 209-219, 2002.

  • P. Machado and A. Cardoso, “All the truth about NEvAr,” Applied Intelligence, Special Issue on Creative Systems, vol. 16, iss. 2, pp. 101-119, 2002.

In Collections

  • P. Machado, J. Correia, and F. Assunção, “Graph-Based Evolutionary Art,” in Handbook of Genetic Programming Applications, A. Gandomi, A. H. Alavi, and C. Ryan, Eds., Berlin: Springer, 2015 – to appear.

  • A. Leitão and P. Machado, “Mate Choice in Evolutionary Computation,” in Handbook of Genetic Programming Applications, A. Gandomi, A. H. Alavi, and C. Ryan, Eds., Berlin: Springer, 2015 – to appear.

  • P. Cruz and P. Machado, “City Portraits and Caricatures,” in Decoding the City: How Big Data Can Change Urbanism, D. Offenhuber and C. Ratti, Eds., Berlin: Birkhauser, 2014, pp. 96-109.

  • P. Cruz and P. Machado, “Stadtportraits und Stadtkarikaturen,” in Die Stadt Entschlusseln: Wie Echtzeitdaten Den Urbanismus Verandern: Wie Echtzeitdaten den Urbanismus verändern, D. Offenhuber and C. Ratti, Eds., Berlin: Birkhauser, 2013, pp. 103-115.

  • J. Romero, P. Machado, A. Carballal, and J. Correia, “Computing Aesthetics with Image Judgement Systems,” in Computers and Creativity, J. McCormack and M. d’Inverno, Eds., Springer Berlin Heidelberg, 2012, pp. 295-322.

  • P. Machado, J. Romero, and B. Manaris, “Experiments in Computational Aesthetics: An Iterative Approach to Stylistic Change in Evolutionary Art,” in The Art of Artificial Evolution: A Handbook on Evolutionary Art and Music, J. Romero and P. Machado, Eds., Springer Berlin Heidelberg, 2007, pp. 381-415.

  • P. Machado and M. Santos, “Computacion Evolutiva y Creatividad,” in Inteligencia Artificial y Computacion Avanzada, J. Romero, C. daFonte, A. Gomez, and P. Machado, Eds., Fundacion Alfredo Brañas, 2007, pp. 147-177.

  • J. Romero and P. Machado, “book preface,” in The Art of Artificial Evolution: A Handbook on Evolutionary Art and Music, J. Romero and P. Machado, Eds., Springer Berlin Heidelberg, 2007, p. VII-XII.

  • P. Machado, F. B. Pereira, J. Tavares, E. Costa, and A. Cardoso, “Evolutionary Turing Machines — The Quest for Busy,” in Recent Developments in Biologically Inspired Computing, L. N. de Castro and F. V. J. Zuben, Eds., IGI Global, 2004, pp. 9-40.

  • A. Cardoso, E. Costa, P. Machado, F. C. Pereira, and P. Gomes, “An architecture for hybrid creative reasoning,” in Soft computing in case based reasoning, S. K. Pal, T. S. Dillon, and D. S. Yeung, Eds., London, UK: Springer-Verlag, 2001, pp. 147-177.

In Proceedings

  • J. M. Cunha, J. Gonçalves, P. Martins, P. Machado, and A. Cardoso, “A Pig, an Angel and a Cactus Walk Into a Blender: A Descriptive Approach to Visual Blending,” in Proceedings of the Eighth International Conference on Computational Creativity (ICCC 2017), 2017.

  • T. Martins, J. Correia, E. Costa, and P. Machado, “Evotype: Evolutionary Type Design,” in Evolutionary and Biologically Inspired Music, Sound, Art and Design – 4th International Conference, EvoMUSART 2015, Copenhagen, Denmark, April 8-10, 2015, Proceedings, 2015, pp. 136-147.

  • P. Machado, A. Vinhas, J. Correia, and A. Ekárt, “Evolving Ambiguous Images,” in Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence, IJCAI 2015, Buenos Aires, Argentina, July 25-31, 2015, 2015, pp. 2473-2479.

  • A. Cruz, P. Machado, F. Assunção, and A. Leitão, “ELICIT: Evolutionary Computation Visualization,” in Genetic and Evolutionary Computation Conference, GECCO 2015, Madrid, Spain, July 11-15, 2015, Companion Material Proceedings, 2015, pp. 949-956.

  • C. Maçãs, P. Cruz, H. Amaro, E. Polisciuc, T. Carvalho, F. Santos, and P. Machado, “Time-series Application on Big Data – Visualization of Consumption in Supermarkets,” in IVAPP 2015 – Proceedings of the 6th International Conference on Information Visualization Theory and Applications, Berlin, Germany, 11-14 March, 2015., 2015, pp. 239-246.

  • C. Maçãs, P. Cruz, P. Martins, and P. Machado, “Swarm Systems in the Visualization of Consumption Patterns,” in Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence, IJCAI 2015, Buenos Aires, Argentina, July 25-31, 2015, 2015, pp. 2466-2472.

  • F. Assunção, J. Correia, P. Martins, and P. Machado, “Evolving Families of Shapes,” in Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence, IJCAI 2015, Buenos Aires, Argentina, July 25-31, 2015, 2015, pp. 4134-4135.

  • E. Polisciuc, P. Cruz, H. Amaro, C. Maçãs, T. Carvalho, F. Santos, and P. Machado, “Arc and Swarm-based Representations of Customer’s Flows among Supermarkets,” in IVAPP 2015 – Proceedings of the 6th International Conference on Information Visualization Theory and Applications, Berlin, Germany, 11-14 March, 2015., 2015, pp. 300-306.

  • T. Martins and P. Machado, “Drawing Sounds,” in xCoAx 2014: Computation Communication Aesthetics and X, Porto, Portugal, 2014, pp. 430-437.

  • P. Cruz, C. Costa, and P. Machado, “An Ecosystem of Corporate Politicians,” in xCoAx 2014: Computation Communication Aesthetics and X,, 2014.

  • P. Machado, T. Martins, H. Amaro, and P. H. Abreu, “An Interface for Fitness Function Design,” in Evolutionary and Biologically Inspired Music, Sound, Art and Design – Third International Conference, EvoMUSART 2014, Granada, Spain, April 23-25, 2014. Proceedings, 2014.

  • P. H. Abreu, H. Amaro, D. C. Silva, P. Machado, and M. H. Abreu, “Personalizing Breast Cancer Patients with Heterogeneous Data,” in The International Conference on Health Informatics, 2014, pp. 39-42.

  • P. Machado and J. Correia, “Semantic Aware Methods for Evolutionary Art,” in Genetic and Evolutionary Computation Conference, GECCO ’14, Vancouver, BC, Canada, July 12-16, 2014. Proceedings, 2014.

  • H. Amaro, P. H. Abreu, D. C. Silva, P. Machado, M. H. Abreu, and N. Afonso, “Overall Survival Prediction for Women Breast Cancer using Ensemble Methods and Incomplete Clinical Data,” in Proceedings of the XIII Mediterranean Conference on Medical and Biological Engineering and Computing, September 25–28 2013, Sevilla, Spain, 2013.

  • J. C. Dias, P. H. Abreu, D. C. Silva, G. Fernandes, P. Machado, and A. Leitão, “Preparing Data for Urban Traffic Simulation using SUMO,” in SUMO 2013: the First SUMO User Conference, May 15–17 2013, Berlin, Germany, 2013.

  • J. C. Dias, P. Machado, and F. C. Pereira, “Privacy-Aware Ant Colony Optimization Algorithm for Real Time Route Planning,” in Proceedings of the World Conference on Transport Research, 2013.

  • J. C. Dias, P. Machado, and F. C. Pereira, “Simulating the Impact of Drivers’ Personality on City Transit,” in Proceedings of the World Conference on Transport Research, 2013.

  • A. Alves, J. Rodrigues, P. Correia, P. Machado, and F. C. Pereira, “Constructing route choice maps from GPS traces,” in Proceedings of the World Conference on Transport Research, 2013.

  • R. Kamolov, P. Machado, and P. Cruz, “Visualizing the flow of users on a wireless network,” in Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH ’13, Anaheim, CA, USA, July 21-25, 2013, Poster Proceedings, 2013, p. 114.

  • E. Polisciuc, A. O. Alves, C. Bento, and P. Machado, “Visualizing urban mobility,” in Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH ’13, Anaheim, CA, USA, July 21-25, 2013, Poster Proceedings, 2013, p. 115.

  • R. Kamolov, P. Machado, and P. Cruz, “Musical flocks,” in Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH ’13, Anaheim, CA, USA, July 21-25, 2013, Poster Proceedings, 2013, p. 93.

  • T. Martins, P. Machado, and A. Rebelo, “The garden of virtual delights: virtual fauna for a botanical garden,” in Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH ’13, Anaheim, CA, USA, July 21-25, 2013, Poster Proceedings, 2013, p. 26.

  • J. Correia, P. Machado, J. Romero, and A. Carballal, “Evolving Figurative Images Using Expression-Based Evolutionary Art,” in Proceedings of the fourth International Conference on Computational Creativity (ICCC), 2013, pp. 24-31.

  • A. Leitão, J. C. Neves, and P. Machado, “A self-adaptive Mate Choice model for Symbolic Regression,” in IEEE Congress on Evolutionary Computation, 2013, pp. 8-15.

  • P. Machado and H. Amaro, “Fitness Functions for Ant Colony Paintings,” in Proceedings of the fourth International Conference on Computational Creativity (ICCC), 2013, pp. 32-39.

  • J. Correia, P. Machado, J. Romero, and A. Carballal, “Feature Selection and Novelty in Computational Aesthetics,” in Evolutionary and Biologically Inspired Music, Sound, Art and Design – Second International Conference, EvoMUSART 2013, Vienna, Austria, April 3-5, 2013. Proceedings, 2013, pp. 133-144.

  • A. Leitão and P. Machado, “Self-adaptive mate choice for cluster geometry optimization,” in Genetic and Evolutionary Computation Conference, GECCO ’13, Amsterdam, The Netherlands, July 6-10, 2013, 2013, pp. 957-964.

  • P. Machado and L. Pereira, “Photogrowth: non-photorealistic renderings through ant paintings,” in Genetic and Evolutionary Computation Conference, GECCO ’12, Philadelphia, PA, USA, July 7-11, 2012, 2012, pp. 233-240.

  • A. Leitão, F. B. Pereira, and P. Machado, “Enhancing cluster geometry optimization with Island Models,” in Proceedings of the IEEE Congress on Evolutionary Computation, CEC 2012, Brisbane, Australia, June 10-15, 2012, 2012, pp. 1-8.

  • J. Correia, P. Machado, and J. Romero, “Improving haar cascade classifiers through the synthesis of new training examples,” in Genetic and Evolutionary Computation Conference, GECCO ’12, Philadelphia, PA, USA, July 7-11, 2012, Companion Material Proceedings, 2012, pp. 1479-1480.

  • L. Duro, P. Machado, and A. Rebelo, “Graphic narratives: generative book covers,” in International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2012, Los Angeles, CA, USA, August 5-9, 2012, Poster Proceedings, 2012, p. 22.

  • P. Machado, J. Correia, and J. Romero, “Expression-Based Evolution of Faces,” in Evolutionary and Biologically Inspired Music, Sound, Art and Design – First International Conference, EvoMUSART 2012, Málaga, Spain, April 11-13, 2012. Proceedings, 2012, pp. 187-198.

  • A. Carballal, J. Romero, P. Machado, and M. Pena, “Estudio de conjuntos muestrales usados en clasificación automática de imágenes,” in 6th International Conference on Digital Arts – ARTECH 2012 Faro, Portugal, November 7–9, 2012. Proceedings, 2012, pp. 115-122.

  • M. Pena, J. Romero, P. Machado, and A. Carballal, “Probas de validación de Críticos de Arte Artificiais,” in 6th International Conference on Digital Arts – ARTECH 2012 Faro, Portugal, November 7-9, 2012. Proceedings, 2012, pp. 211-217.

  • P. Machado, J. Correia, and J. Romero, “Improving Face Detection,” in Genetic Programming – 15th European Conference, EuroGP 2012, Málaga, Spain, April 11-13, 2012. Proceedings, 2012, pp. 73-84.

  • P. Cruz and P. Machado, “Visualizing the Circulatory Problems of Lisbon,” in International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2011, Vancouver, Canada, August 7-11, 2011, Poster Proceedings, Vancouver, Canada, 2011.

  • L. Duro, P. Cruz, and P. Machado, “Abstract Ocean Waves,” in International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2011, Vancouver, Canada, August 7-11, 2011, Poster Proceedings, Vancouver, Canada, 2011.

  • J. Romero, P. Machado, A. Carballal, and O. Osorio, “Aesthetic Classification and Sorting Based on Image Compression,” in Applications of Evolutionary Computation – EvoApplications 2011: EvoCOMNET, EvoFIN, EvoHOT, EvoMUSART, EvoSTIM, and EvoTRANSLOG, Torino, Italy, April 27-29, 2011, Proceedings, Part II, 2011, pp. 394-403.

  • P. Machado and A. Leitão, “Evolving Fitness Functions for Mating Selection,” in Genetic Programming – 14th European Conference, EuroGP 2011, Torino, Italy, April 27-29, 2011. Proceedings, 2011, pp. 227-238.

  • P. Cruz and P. Machado, “Visualizing Empires Decline,” in International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2010, Los Angeles, California, USA, July 26-30, 2010, Poster Proceedings, Los Angeles, California, 2010.

  • P. Cruz and P. and Machado, “Visualizing the Portuguese Empire expansion and decline,” in Proc. of the 5th International Conference on Digital Arts, Artech 2010, Guimarães, Portugal, 2010.

  • P. Machado, H. Nunes, and J. Romero, “Graph-Based Evolution of Visual Languages,” in Applications of Evolutionary Computation, EvoApplications 2010: EvoCOMNET, EvoENVIRONMENT, EvoFIN, EvoMUSART, and EvoTRANSLOG, Istanbul, Turkey, April 7-9, 2010, Proceedings, Part II, 2010, pp. 271-280.

  • P. Machado and H. Nunes, “A Step Towards the Evolution of Visual Languages,” in First International Conference on Computational Creativity, Lisbon, Portugal, 2010.

  • P. Machado, “Expressions, Assemblages and Grammars,” in Bridges Conference Proceedings, Pécs, Hungary, 2010.

  • A. Martins, G. Neto, R. de Lemos, P. Machado, and A. Salvador, “WikiModels: a platform for collaborative development of biochemical models,” in VII Iberoamerican Congress of Biophysics, Rio de Janeiro. Brasil, 2009.

  • J. Romero, P. Machado, and A. Santos, “On the Socialization of Evolutionary Art,” in Applications of Evolutionary Computing, EvoWorkshops 2009: EvoCOMNET, EvoENVIRONMENT, EvoFIN, EvoGAMES, EvoHOT, EvoIASP, EvoINTERACTION, EvoMUSART, EvoNUM, EvoSTOC, EvoTRANSLOG, Tübingen, Germany, April 15-17, 2009. Proceedings, 2009, pp. 557-566.

  • A. Martins, G. Neto, P. Machado, and A. Salvador, “WikiModels: A Web-based Platform for Collaborative Development of Kinetic Models,” in Jornadas de Bioinformática, Lisbon, Portugal, 2009.

  • G. Greenfield and P. Machado, “Simulating Artist and Critic Dynamics – An Agent-based Application of an Evolutionary Art System,” in IJCCI 2009 – Proceedings of the International Joint Conference on Computational Intelligence, Funchal, Madeira, Portugal, October 5-7, 2009, 2009, pp. 190-197.

  • P. Machado and F. Graça, “Evolutionary Pointillist Modules: Evolving Assemblages of 3D Objects,” in Applications of Evolutionary Computing, EvoWorkshops 2008: EvoCOMNET, EvoFIN, EvoHOT, EvoIASP, EvoMUSART, EvoNUM, EvoSTOC, and EvoTransLog, Naples, Italy, March 26-28, 2008. Proceedings, 2008, pp. 453-462.

  • F. Graça and P. Machado, “Evolving Assemblages of 3D Objects,” in New Creativity, The 11th Biennial Symposium on Arts and Technology, New London, USA, 2008.

  • B. Z. Manaris, P. Roos, P. Machado, D. Krehbiel, L. Pellicoro, and J. Romero, “A Corpus-Based Hybrid Approach to Music Analysis and Composition,” in Proceedings of the Twenty-Second AAAI Conference on Artificial Intelligence, July 22-26, 2007, Vancouver, British Columbia, Canada, 2007, pp. 839-845.

  • J. Romero, P. Machado, A. Santos, and M. Santos, “Sociedad Híbrida: Una extensión de computación evolutiva interactiva,” in Una Perspectiva de la Inteligencia Artificial en su 50 Aniversario, Albacete, Spain, 2006.

  • M. Pena, J. Romero, P. Machado, and A. Pazos, “Máquinas Estéticas,” in Conferência Internacional de Arte Digital e Electrónica, Artech 2006, Pontevedra, Spain, 2006.

  • A. Cardoso and P. Machado, “Sobre a Geração de Obras de Arte,” in Arte e Emoção: as Artes e as Ciências no Horizonte da Racionalidade, Porto, Portugal, 2006.

  • J. Romero, P. Machado, B. Manaris, and A. Santos, “Críticos de Arte Artificiales,” in Una Perspectiva de la Inteligencia Artificial en su 50 Aniversario, Albacete, Spain, 2006.

  • J. Romero, E. Sanmartín, P. Machado, and A. Santos, “Artificial Immune System Based Art,” in Proceedings of the Eighteenth International Florida Artificial Intelligence Research Society Conference, Clearwater Beach, Florida, USA, 2005, pp. 92-98.

  • B. Z. Manaris, P. Machado, C. McCauley, J. Romero, and D. Krehbiel, “Developing Fitness Functions for Pleasant Music: Zipf’s Law and Interactive Evolution Systems,” in Applications of Evolutionary Computing, EvoWorkshops 2005: EvoBIO, EvoCOMNET, EvoHOT, EvoIASP, EvoMUSART, and EvoSTOC, Lausanne, Switzerland, March 30 – April 1, 2005, Proceedings, 2005, pp. 498-507.

  • P. Machado, J. Tavares, A. Cardoso, F. B. Pereira, and E. Costa, “Evolving Creativity,” in Computational Creativity Workshop, 7th European Conference in Case Based Reasoning, Madrid, Spain, 2004.

  • R. Oliveira, F. C. Pereira, and P. Machado, “Animating 3D Creatures,” in CGAIDE 2004 — International Conference on Computer Games: Artificial Intelligence, Design and Education, Microsoft Campus, Reading, UK, 2004.

  • J. Tavares, P. Machado, A. Cardoso, F. B. Pereira, and E. Costa, “On the Evolution of Evolutionary Algorithms,” in Genetic Programming, 7th European Conference, EuroGP2004, Coimbra, Portugal, April 5-7, 2004, Proceedings, 2004, pp. 389-398.

  • P. Machado, J. Romero, M. L. Santos, A. Cardoso, and B. Z. Manaris, “Adaptive Critics for Evolutionary Artists,” in Applications of Evolutionary Computing, EvoWorkshops 2004: EvoBIO, EvoCOMNET, EvoHOT, EvoIASP, EvoMUSART, and EvoSTOC, Coimbra, Portugal, April 5-7, 2004, Proceedings, 2004, pp. 437-446.

  • J. Tavares, F. B. Pereira, P. Machado, and E. Costa, “On the Influence of GVR in Vehicle Routing,” in Proceedings of the 2003 ACM Symposium on Applied Computing (SAC), March 9-12, 2003, Melbourne, FL, USA, 2003, pp. 753-758.

  • J. Romero, P. Machado, A. Santos, and A. Cardoso, “On the Development of Critics in Evolutionary Computation Artists,” in Applications of Evolutionary Computing, EvoWorkshop 2003: EvoBIO, EvoCOP, EvoIASP, EvoMUSART, EvoROB, and EvoSTIM, Essex, UK, April 14-16, 2003, Proceedings, 2003, pp. 559-569.

  • A. Cardoso and P. Machado, “Computational Creativity,” in Progress in Artificial Intelligence, 11th Portuguese Conference on Artificial Intelligence, EPIA 2003, Beja, Portugal, December 4-7, 2003, Proceedings, 2003, p. 2.

  • J. Tavares, F. B. Pereira, P. Machado, and E. Costa, “Crossover and Diversity: A Study about GVR,” in Proceedings of the Analysis and Design of Representations and Operators (ADoRo’2003), a bird-of-a-feather workshop at the 2003 Genetic and Evolutionary Computation Conference (GECCO-2003), Chicago, Illinois USA, 2003, pp. 27-33.

  • P. Machado, J. Romero, B. Manaris, A. Santos, and A. Cardoso, “Power to the Critics — A Framework for the Development of Artificial Art Critics,” in IJCAI 2003 Workshop on Creative Systems, Acapulco, Mexico, 2003.

  • P. Machado and A. Cardoso, “NEvAr — System Overview,” in Generative Art, Milan, Italy, 2003.

  • J. Romero, P. Machado, and M. Ares, “Artificial Music Critics,” in Generative Art, Milan, Italy, 2003.

  • J. Tavares, F. B. Pereira, P. Machado, and E. Costa, “GVR Delivers It On Time,” in SEAL02 4th Asia-Pacific Conference on Simulated Evolution And Learning, 18–22 Singapore, 2002.

  • P. Machado, A. Dias, N. Duarte, and A. Cardoso, “Giving Colour to Images,” in AI and Creativity in Arts and Science, Imperial College, United Kingdom, 2002.

  • A. Dias, P. Machado, and A. Cardoso, “Improving genome compiler’s performance,” in Genetic and Evolutionary Computation Conference, Graduate Student Workshop, GECCO’02, New York, USA, 2002.

  • F. B. Pereira, J. Tavares, P. Machado, and E. Costa, “GVR: A New Genetic Representation for the Vehicle Routing Problem,” in Artificial Intelligence and Cognitive Science, 13th Irish International Conference, AICS 2002, Limerick, Ireland, September 12-13, 2002, Proceedings, 2002, pp. 95-102.

  • P. Machado, J. Tavares, F. B. Pereira, and E. Costa, “Vehicle Routing Problem: Doing It The Evolutionary Way,” in GECCO 2002: Proceedings of the Genetic and Evolutionary Computation Conference, New York, 2002, p. 690.

  • P. Machado, A. Dias, and A. Cardoso, “GenCo – A Project Report,” in Third International Symposium on Artificial Intelligence and Adaptive Systems (ISAS’2001), Havana, Cuba, March 2001.

  • C. Grilo, P. Machado, and A. Cardoso, “Paradigmatic Analysis Using Genetic Algorithms,” in Proc. of the Artificial Intelligence and the Simulation of Behavior (AISB2001), March 2001, pp. 51-58.

  • F. B. Pereira, P. Machado, E. Costa, A. Cardoso, A. Ochoa-Rodriguez, R. Santana, and M. Soto, “Too Busy to Learn,” in Proc. of the 2000 Congress on Evolutionary Computation, Piscataway, NJ, 2000, pp. 720-727.

  • P. Machado and A. Cardoso, “NEvAr — The Assessment of an Evolutionary Art Tool,” in AISB’00 Symposium on Creative and Cultural Aspects and Applications of AI and Cognitive Science, Birmingham, UK, 2000.

  • R. Santana, A. Ochoa-Rodríguez, M. Soto, F. B. Pereira, P. Machado, E. Costa, and A. Cardoso, “Probabilistic Evolution and the Busy Beaver Problem,” in Proceedings of the Genetic and Evolutionary Computation Conference (GECCO’00), Las Vegas, Nevada, USA, July 8-12, 2000, 2000, p. 380.

  • P. Machado and A. Cardoso, “Speeding up Genetic Programming,” in Second International Symposium on Artificial Intelligence and Adaptive Systems, CIMAF’99,, La Habana, Cuba, 1999, pp. 217-223.

  • F. B. Pereira, P. Machado, E. Costa, and A. Cardoso, “Busy Beaver — An Evolutionary Approach,” in Procs. of the Second International Symposium on Artificial Intelligence and Adaptive Systems (CIMAF’99), Havana, Cuba, March 22–26 1999, pp. 212-217.

  • P. Machado, F. B. Pereira, A. Cardoso, and E. Costa, “Busy Beaver – The Influence of Representation,” in Genetic Programming, Second European Workshop, Göteborg, Sweden, May 26-27, 1999, Proceedings, 1999, pp. 29-38.

  • F. B. Pereira, P. Machado, E. Costa, and A. Cardoso, “Graph Based Crossover — A Case Study with the Busy Beaver Problem,” in Proceedings of the Genetic and EvolutionaryComputation Conference, Orlando, Florida, USA, 1999, pp. 1149-1155.

  • F. C. Pereira, P. Machado, and A. Cardoso, “Darwinci: Creating Bridges to Creativity,” in Advances in Artificial Intelligence, 14th Brazilian Symposium on Artificial Intelligence, SBIA’98, Porto Alegre, Brazil, November 4-6, 1998, Proceedings, 1998, pp. 239-248.

  • P. Machado and A. Cardoso, “Computing Aesthetics,” in Advances in Artificial Intelligence, 14th Brazilian Symposium on Artificial Intelligence, SBIA’98, Porto Alegre, Brazil, November 4-6, 1998, Proceedings, 1998, pp. 219-228.

  • P. Machado and A. Cardoso, “Model Proposal for a Constructed Artist,” in Procs. of the first World Multiconference on Systemics, Cybernetics and Informatics, 1997, pp. 521-528.

  • P. Machado and A. Cardoso, “Generation and Evaluation of Artworks,” in Procs. of the First European Workshop on Cognitive Modeling, 1996.

  • C. Bento, P. Machado, and E. Costa, “On the Role of Splitting and Merging Past Cases for Generation of a New Solution,” in Progress in Artificial Intelligence, 7th Portuguese Conference on Artificial Intelligence, EPIA’95, Funchal, Madeira Island, Portugal, October 3-6, 1995, Proceedings, 1995, pp. 249-260.

  • C. Bento, P. Machado, and E. Costa, “Evaluation of Recidepsy — An Adviser in the Domain of Psychology,” in AAAI 94 Case-Based Reasoning Workshop, 1994, pp. 143-149.

In Exhibitions

  • R. Kamolov and P. Machado, “Musical Swarms,” in BRIDGES 2013 — Mathematical Art Galleries, Enschede, Netherlands: , 2013.

  • T. Martins and P. Machado, “The garden of virtual delights,” in BRIDGES 2013 — Mathematical Art Galleries, Enschede, Netherlands: , 2013.

  • P. Machado and L. Pereira, “Photogrowth,” in BRIDGES 2012 — Mathematical Art Galleries, Towson, MA, USA: , 2012.

  • P. Cruz and P. Machado, “Visualizing Empires Decline,” in ACM SIGGRAPH 2010 Computer Animation Festival, Los Angeles, California: ACM, 2010.

  • P. Cruz, P. Machado, and J. Bicker, “Visualizaçón del tráfico en Lisboa,” in Mediateca Expandida Habitar, Gijón, Spain: {LAB}oral Centro de Arte y Creación Cultural, 2010, p. 28-29, 86-87.

  • P. Machado and J. Romero, “Losing System Signature,” in Proc. of the Computational Aesthetics in Graphics, Visualization, and Imaging (CAe 2009) Art Catalogue, Victoria, Canada, 2009.

  • F. Graça and P. Machado, “Informal Stains,” in Proc. of the Computational Aesthetics in Graphics, Visualization, and Imaging (CAe 2009) Art Catalogue, Victoria, Canada, 2009.

  • F. Graça and P. Machado, “Evolving Assemblages,” in Proc. of the Computational Aesthetics in Graphics, Visualization, and Imaging (CAe 2008) Art Catalogue, Lisbon, Portugal, 2008.

  • P. Machado and J. Romero, “Movement without Motion,” in ART Escapes’2007 — Exhibition Catalog, Valencia, Spain: ISBN 978-84-8363-106-5, 2007.

  • ART Escapes’2007 — Exibition Catalog, P. Machado, J. Romero, P. Urbano, and A. Esparcia, Eds., Valencia, Spain: ISBN 978-84-8363-106-5, 2007.

  • P. Machado and J. Romero, “Preface,” in ART Escapes’2007 — Exhibition Catalog, Valencia, Spain: ISBN 978-84-8363-106-5, 2007.

  • Process Revealed DVD, T. Blackwell, J. Jeffries, P. Machado, and J. Romero, Eds., London, UK: Goldsmith, University of London, 2006.

Edited Books

  • The Art of Artificial Evolution: A Handbook on Evolutionary Art and Music, J. Romero and P. Machado, Eds., Springer Berlin Heidelberg, 2007.

  • Inteligencia Artificial y Computacion Avanzada, J. Romero, C. daFonte, A. Gomez, and P. Machado, Eds., Fundacion Alfredo Brañas, 2007.

Conference Proceedings

  • Genetic Programming – 18th European Conference, EuroGP 2015, Copenhagen, Denmark, April 8-10, 2015. Proceedings, P. Machado, M. Heywood, and J. McDermott, Eds., Springer, 2015.

  • Evolutionary and Biologically Inspired Music, Sound, Art and Design – Second International Conference, EvoMUSART 2013, Vienna, Austria, April 3-5, 2013. Proceedings, P. Machado, J. McDermott, and A. Carballal, Eds., Springer, 2013, vol. 7834.

  • Evolutionary and Biologically Inspired Music, Sound, Art and Design – First International Conference, EvoMUSART 2012, Málaga, Spain, April 11-13, 2012. Proceedings, P. Machado, J. Romero, and A. Carballal, Eds., Springer, 2012, vol. 7247.

  • Genetic Programming – 15th European Conference, EuroGP 2012, Málaga, Spain, April 11-13, 2012. Proceedings, A. Moraglio, S. Silva, K. Krawiec, P. Machado, and C. Cotta, Eds., Springer, 2012, vol. 7244.

  • Genetic Programming – 14th European Conference, EuroGP 2011, Torino, Italy, April 27-29, 2011. Proceedings, S. Silva, J. A. Foster, M. Nicolau, P. Machado, and M. Giacobini, Eds., Springer, 2011, vol. 6621.

  • Applications of Evolutionary Computation, EvoApplications 2010: EvoCOMNET, EvoENVIRONMENT, EvoFIN, EvoMUSART, and EvoTRANSLOG, Istanbul, Turkey, April 7-9, 2010, Proceedings, Part II, C. D. Chio, A. Brabazon, G. D. A. Caro, M. Ebner, M. Farooq, A. Fink, J. Grahl, G. Greenfield, P. Machado, M. O’Neill, E. Tarantino, and N. Urquhart, Eds., Springer, 2010, vol. 6025.

  • Applications of Evolutionary Computing, EvoWorkshops 2009: EvoCOMNET, EvoENVIRONMENT, EvoFIN, EvoGAMES, EvoHOT, EvoIASP, EvoINTERACTION, EvoMUSART, EvoNUM, EvoSTOC, EvoTRANSLOG, Tübingen, Germany, April 15-17, 2009. Proceedings, M. Giacobini, A. Brabazon, S. Cagnoni, G. D. A. Caro, A. Ekárt, A. Esparcia-Alcázar, M. Farooq, A. Fink, P. Machado, J. McCormack, M. O’Neill, F. Neri, M. Preuss, F. Rothlauf, E. Tarantino, and S. Yang, Eds., Springer, 2009, vol. 5484.

  • Applications of Evolutionary Computing, EvoWorkshops 2007: EvoCoMnet, EvoFIN, EvoIASP,EvoINTERACTION, EvoMUSART, EvoSTOC and EvoTransLog, Valencia, Spain, April11-13, 2007, Proceedings, M. Giacobini, A. Brabazon, S. Cagnoni, G. D. Caro, R. Drechsler, M. Farooq, A. Fink, E. Lutton, P. Machado, S. Minner, M. O’Neill, J. Romero, F. Rothlauf, G. Squillero, H. Takagi, S. Uyar, and S. Yang, Eds., Springer, 2007, vol. 4448.

  • Applications of Evolutionary Computing, EvoWorkshops 2006: EvoBIO, EvoCOMNET, EvoHOT, EvoIASP, EvoINTERACTION, EvoMUSART, and EvoSTOC, Budapest, Hungary, April 10-12, 2006, Proceedings, F. Rothlauf, J. Branke, S. Cagnoni, E. Costa, C. Cotta, R. Drechsler, E. Lutton, P. Machado, J. H. Moore, J. Romero, G. D. Smith, G. Squillero, and H. Takagi, Eds., Springer, 2006, vol. 3907.

  • Applications of Evolutionary Computing, EvoWorkshops 2005: EvoBIO, EvoCOMNET, EvoHOT, EvoIASP, EvoMUSART, and EvoSTOC, Lausanne, Switzerland, March 30 – April 1, 2005, Proceedings, F. Rothlauf, J. Branke, S. Cagnoni, D. W. Corne, R. Drechsler, Y. Jin, P. Machado, E. Marchiori, J. Romero, G. D. Smith, and G. Squillero, Eds., Springer, 2005, vol. 3449.

  • Applications of Evolutionary Computing, EvoWorkshops 2004: EvoBIO, EvoCOMNET, EvoHOT, EvoIASP, EvoMUSART, and EvoSTOC, Coimbra, Portugal, April 5-7, 2004, Proceedings, G. R. Raidl, S. Cagnoni, J. Branke, D. Corne, R. Drechsler, Y. Jin, C. G. Johnson, P. Machado, E. Marchiori, F. Rothlauf, G. D. Smith, and G. Squillero, Eds., Springer, 2004, vol. 3005.

Special Issues

  • J. Romero and P. Machado, “Special Issue on Evolutionary Art and Music,” International Journal of Arts and Technology, 2015.

  • J. Romero, P. Machado, and A. Carballal, “Special issue on biologically inspired music, sound, art and design,” Genetic Programming and Evolvable Machines, vol. 14, iss. 3, 2013.

  • G. Greenfield and P. Machado, “Mathematical Models used in Aesthetic Evaluation,” Special Issue of the Journal of Mathematics and Art, 2012.

  • P. Machado and B. Manaris, “Special Issue Artificial Intelligence in Music and Art,” International Journal on Artificial Intelligence Tools, vol. 15, iss. 4, 2006.