PosterECAL 2011
8-12 August 2011

Program – Thursday, August 11

    << Wednesday 10 Thursday 11 Friday 12 >>  
8:00 registration   Lobby 
breakfast, posters & art   Halls 
9:00 The mechanics of shape change in the Drosophila embryo With the first three hours of development, the Drosophila embryo establishes a precise pattern of transcription factors that divides the blastoderm into groups of cells destined to form different organs and tissues in the adult. . . . In my talk I will discuss the relationship between the initial transcription profiles and a novel pulsating reorganization of the Actin/Myosin cytoskeleton in the apical region of cells that will make the ventral furrow. We show that the resultant contractile pulses drive cell shape changes in the entire mesodermal primordium. The individual contractions appear to be unpolarized but they result in polarized wedge-like constrictions because global tension in the sheet is polarized along the AP axis. We analyze the force distributions in the mesodermal primordia using a combination of genetics and RNAi to lower adhesive strengths between cells, and laser dissections to locally disrupt the cytoskeleton. About Eric Wieschaus…
10:00 coffee break, posters & art   Halls 
oral session 6

  track 6A   Aden 
  track 6B   CFB 
Evolutionary Robotics

track 6A: Complexity
Chair: Susan Stepney

  • I. Harvey
    Opening stable doors: Complexity and stability in nonlinear systems
  • P. Wills
    Life requires genetic representation and vice versa: Consequences for Alife
  • T. Froese, N. Virgo & T. Ikegami
    Life as a process of open-ended becoming: Analysis of a minimal model
  • M. Bedau, A. Buchanan, D. Chalmers, C. Cooper Francis, N. Packard & N. Pepper
    Evidence in the patent record for the evolution of technology using citation and PageRank statistics
track 6B: Evolutionary Robotics
Chair: Jordan Pollack

  • Y. Sato, H. Iizuka & T. Ikegami
    An experimental and computational approach to the dynamic body boundary problem
  • M. Lones, A. Tyrrell, S. Stepney & L. Caves
    Controlling legged robots with coupled artificial biochemical network
  • D. Knox & J. Rieffel
    Scalable co-evolution of soft robot properties and gaits
  • A. Nellis & S. Stepney
    Embodied copying for richer evolution
12:10 lunch, posters & art   Halls 
oral session 7

  track 7A   Aden 
Systems Biology
  track 7B   CFB 
Robot Control

track 7A: Systems Biology
Chair: Luis Rocha

  • R. Belavkin, A. Channon, E. Aston, J. Aston & C. Knight
    Theory and practice of optimal mutation rate control in Hamming spaces of DNA sequences
  • J. Fisher & J. Moore
    Distinguishing the effects of epistasis and pleiotropy using a variant of the NK model
  • C. Knibbe, D.P. Parsons & G. Beslon
    Parsimonious modeling of scaling laws in genomes and transcriptomes
  • P. Stano, P. Carrara, T. Souza & P.L. Luisi
    An update on the minimal cell project: From the physics of solute encapsulation to the experimental modeling of cell communities
track 7B: Robot Control
Chair: Jozef Kelemen

  • K. Nakamura, I. Suzuki, M. Yamamoto & M. Furukawa
    Virtual fluid environment on behavior ability for artificial creature
  • J.N. Pereira, P. Silva, P.U. Lima & A. Martinoli
    Formalizing institutions as executable Petri nets for distributed robotic systems
  • S. Oliveira, L. Nunes & A. Lyhne Christensen
    An experiment in mixing evolving and preprogrammed robots
  • E. Matsuda, J. Hubert & T. Ikegami
    A robotic approach to understand the role of vicarious trial-and-error in a T-maze task
15:20 coffee break, posters & art   Halls 
oral session 8

  track 8A   Aden 
Morphologies/Devel 2
  track 8B   CFB 

track 8A: Morphologies & Development 2
Chair: René Doursat

  • A. Khuong, G. Theraulaz, C. Jost, A. Perna & J. Gautrais
    A computational model of ant nest morphogenesis
  • D. Cockburn & Z. Kobti
    WASPS: A weight-allocated social pressure system for the emergence of agent specialization
  • N. Bhalla, P. Bentley, P. Vize & C. Jacob
    Staging the self-assembly process using morphological information
  • J. Clune & H. Lipson
    Evolving three-dimensional objects with a generative encoding inspired by developmental biology
track 8B: Robotics
Chair: Takashi Ikegami

  • E. Hourdakis & P. Trahanias
    Computational modeling of online reaching
  • H. Moriguchi & H. Lipson
    Learning symbolic forward models for robotic motion planning and control
  • J. Yosinski, J. Clune, D. Hidalgo, S. Nguyen, J.C. Zagal & H. Lipson
    Evolving robot gaits in hardware: the HyperNEAT generative encoding vs. parameter optimization
  • P. Santana, R. Mendonça, L. Correia & J. Barata
    Swarms for robot vision: The case of adaptive visual trail detection and tracking
17:30 coffee break, posters & art   Halls 
18:00 Prospects for machine embryogenesis In Nature, the embryogenesis process proceeds from a single fertilized cell through division, migration, specialization and apoptosis. Although a lot is known about development, we still have a long way to go from theories of pattern formation towards understanding the intelligence within an unsupervised manufacturing process which robustly assembles complex biological forms. Our approach has been to co-evolve bodies and brains in simulation and then convert them into reality using commercial manufacturing technology. I will review several generations of robots which were automatically designed using co-evolutionary techniques. The goal has been the fully automated design and construction of artificial lifeforms. The first generation was based on genetic programming and a simulation of LEGO rod adhesion. The second generation used direct evolution on a iterative simulation of truss structures and used 3D printing for the output. A third generation was based on generative representations using L-systems. About Jordan Pollack…
19:00 Upokrinomenes: a fabulated epistemology Zoosystemician Louis Bec forces us to question the validity of each claim by reformulating and staging scientific discourse. His reasoning possesses all the marks of scientific assertiveness, combining scientific jargon with scholarly neologisms. Questioning life and our inability to understand it through traditional investigative methods, he founded the field of Upokrinomenology. It is a theory of life using models based on computer science, robotics, video and other interactive devices, where irony holds a significant place. By putting scientific discourse into perspective, he challenges us to investigate, unravel and interpret the propositions that he makes. In this research, scientific discourse becomes poetic and Louis Bec becomes a storyteller. Founder of the Scientific Institute of Paranaturalistic Research, he invites us to discover a life we did not know existed, one that looms at the border between shapes, language and behavior [after C. Beaugrand & A. Charre, Reinventing the museum]. (Art exhibit at ECAL’11 designed and installed with François Mourre, Patrice Bersani, Vincent Monnier and Delphine Fabbri-Lawson.) His presentation will be followed by 7p., cuis., s. de b., … à saisir (6BR, kitch., bath., … selling now), a short film by Agnès Varda featuring Louis Bec. About Louis Bec…
20:00 The Continuator Project: playing with virtual musicians François Pachet (guitar player) and Jeff Suzda (professional sax player) will perform a short Jazz concert with their band “Quintet of Two”. They comprise the two human musicians in the group, performing alongside three “software” musicians. The goal of this project is to play “standard” jazz using virtual instruments intimately controlled by the human players. The technologies employed, developped at Sony CSL, involve Markov chains, constraint programming, signal processing, and a great degree of musical tuning. The performance is still exploratory, but we hope to convey a sense of the direction we are heading to: enhance musical expressivity through controllable machines. [ References ] About François Pachet…