From nicolas.brodu at numerimoire.net Tue Feb 9 14:13:28 2010 From: nicolas.brodu at numerimoire.net (Nicolas Brodu) Date: Tue, 9 Feb 2010 15:13:28 +0100 Subject: [Causality-ML] Reminder: Analyzing Coherent Brain Networks with Granger Causality Message-ID: <201002091513.28563.nicolas.brodu@numerimoire.net> Dear Causality and Machine Learning group, This is a friendly reminder for next presentation by Mingzhou Ding : Title: Analyzing Coherent Brain Networks with Granger Causality When: Thursday 11 February, 17h Paris time (8h PT, 11h ET, 0h(+1) Beijing) In order to participate: - Open in Firefox: http://www.encours.org/encours/?presentation=causalityML100211MD - Possibly call a local phone number near you: http://www.sipbroker.com/sipbroker/action/pstnNumbers and enter extension *96432# If you like our service please participate by sending us presentation proposals. It doesn't cost you anything, and you are given the opportunity to present and discuss your research. Abstract of the next presentation: -------- Multielectrode neurophysiological recording and functional brain imaging produce massive quantities of data. Multivariate time series analysis provides the basic framework for analyzing the patterns of neural interactions in these data. It has long been recognized that neural interactions are directional. Being able to assess the directionality of neuronal interactions is thus a highly desired capability for understanding the cooperative nature of neural computation. Research over the last few years has shown that Granger causality is a key technique to furnish this capability. In this talk, I will introduce the concept of Granger causality and present results from applications of this technique to multichannel LFP and EEG recordings from monkeys and humans performing cognitive tasks. -------- Best regards, Nicolas Brodu From nicolas.brodu at numerimoire.net Fri Feb 12 09:55:40 2010 From: nicolas.brodu at numerimoire.net (Nicolas Brodu) Date: Fri, 12 Feb 2010 09:55:40 +0000 Subject: [Causality-ML] Replay available: Analyzing Coherent Brain Networks with Granger Causality Message-ID: <8dc573bd5de56cb757a438f0fe3c6b3c@192.168.1.1> Dear Causality and Machine Learning group, The replay of yesterday's presentation "Analyzing Coherent Brain Networks with Granger Causality" is available! http://www.encours.org/presentations/causalityML100211MD/replay.html The next presentation will be "Thermodynamics of the Earth system - Trying to get "order" into the way the Earth system does its work", by Axel Kleidon, on Wednesday 24th. You can see past replays and planned talks on the page: http://www.afia-france.org/tiki-index.php?page=Groupe+de+lecture If you like our service please participate by sending us presentation proposals. It doesn't cost you anything, and you are given the opportunity to present and discuss your research. Best regards, Nicolas Brodu From nicolas.brodu at numerimoire.net Mon Feb 22 20:14:16 2010 From: nicolas.brodu at numerimoire.net (Nicolas Brodu) Date: Mon, 22 Feb 2010 21:14:16 +0100 Subject: [Causality-ML] Reminder: Thermodynamics of the Earth system - Trying to get "order" into the way the Earth system does its work Message-ID: <201002222114.17053.nicolas.brodu@numerimoire.net> Dear Causality and Machine Learning group, This is a friendly reminder for the next presentation by Axel Kleidon : Title: Thermodynamics of the Earth system - Trying to get "order" into the way the Earth system does its work When: Wednesday 24th February, 16h Paris time (7h PT, 10h ET, 23h Beijing) This presentation is out of our usual tracks, and part of the cycle of our twin group on Complex Systems. It was suggested for inclusion into our teleconferences, and we decided to forward the announce on this group in the hope you might appreciate it. Please come and judge by yourself! In order to participate: - Open in Firefox: http://www.encours.org/encours/?presentation=CS100224AK - Possibly call a local phone number near you: http://www.sipbroker.com/sipbroker/action/pstnNumbers (Ex for France: 0179997999) and enter extension *96432# If you like our service please participate by sending us presentation proposals. It doesn't cost you anything, and you are given the opportunity to present and discuss your research. Abstract of the next presentation: -------- http://www.afia-france.org/tiki-index.php?page=GroupeDeLecture100224AK The Earth is unique among the terrestrial planets of the solar system in that it harbors abundant life. James Lovelock argued more than 40 years ago that the presence of widespread life can be identified by an atmospheric composition that is maintained far from thermodynamic equilibrium, as reflected in the high concentration of reactive oxygen. The maintenance of such a state through time seems to contradict the second law of thermodynamics, which states for isolated systems that gradients and free energy are dissipated over time, resulting in a state of thermodynamic equilibrium. This seeming contradiction is resolved by considering planet Earth as a coupled, hierarchical and evolving non-equilibrium thermodynamic system that has been substantially altered by the input of free energy resulting from photosynthetic life. Here, I present the background of non-equilibrium thermodynamics as applied to Earth system processes and their interactions, how this relates to states being maintained away from thermodynamic equilibrium, and discuss the role that life plays in these. This perspective allows us to view life as being the means to transform many aspects of planet Earth to states far away from thermodynamic equilibrium, where pockets of low-entropy life emerge from the overall trend of the Earth system to increase the entropy of the universe at the fastest possible rate. -------- About the lecturer: Axel Kleidon studied physics, mathematics and meteorology at the University of Hamburg and Purdue University, Indiana, USA. Ph.D. in meteorology, Univ. Hamburg (1998), Postdoctoral scientist, Stanford Univ. (1998-2000), Assistant Professor, Univ. Maryland (2001-2006), Leader, independent junior research group (since 2006). Research interests: atmosphere-biosphere interactions, geographic patterns of plant biodiversity, global vegetation modelling, non-equilibrium thermodynamics of Earth system processes, Gaia hypothesis, Earth system evolution. Best regards, Nicolas Brodu From nicolas.brodu at numerimoire.net Thu Feb 25 09:32:13 2010 From: nicolas.brodu at numerimoire.net (Nicolas Brodu) Date: Thu, 25 Feb 2010 10:32:13 +0100 Subject: [Causality-ML] Replay Available : Thermodynamics of the Earth system - Trying to get "order" into the way the Earth system does its work Message-ID: <201002251032.13622.nicolas.brodu@numerimoire.net> Dear Causality and Machine Learning group, The replay for yesterday's presentation "Thermodynamics of the Earth system - Trying to get "order" into the way the Earth system does its work" by Axel Kleidon is available! http://www.encours.org/presentations/CS100224AK/replay.html If you like our service please participate by sending us presentation proposals. It doesn't cost you anything, and you are given the opportunity to present and discuss your research. Best regards, Nicolas Brodu