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june holley
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Systems change, however, requires philanthropies to operate in ways that are often unfamiliar, even counter to traditional ways of working. While we all need to see the world through a complex systems lens, systems change is not an approach that every philanthropy can responsibly pursue.
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june holley
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The Nobel Laureate Giorgio Parisi is interviewed by JPhys Complexity Editor-in-Chief, Ginestra Bianconi, on themes related to the 2021 Nobel Prize in Physics awarded to him for research on complex systems. Read the full article at: iopscience.iop.org
Via Complexity Digest
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june holley
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Sonia Kéfi, Camille Saade, Eric L. Berlow, Juliano S. Cabral and Emanuel A. Fronhofer Philosophical Transactions of the Royal Society B-Biological Sciences; Vol.: 377; Issue: 1857; Article No.: 20210386 Anthropogenic activities are increasingly affecting ecosystems across the globe. Meanwhile, empirical and theoretical evidence suggest that natural systems can exhibit abrupt collapses in response to incremental increases in the stressors, sometimes with dramatic ecological and economic consequences. These catastrophic shifts are faster and larger than expected from the changes in the stressors and happen once a tipping point is crossed. The primary mechanisms that drive ecosystem responses to perturbations lie in their architecture of relationships, i.e. how species interact with each other and with the physical environment and the spatial structure of the environment. Nonetheless, existing theoretical work on catastrophic shifts has so far largely focused on relatively simple systems that have either few species and/or no spatial structure. This work has laid a critical foundation for understanding how abrupt responses to incremental stressors are possible, but it remains difficult to predict (let alone manage) where or when they are most likely to occur in more complex real-world settings. Here, we discuss how scaling up our investigations of catastrophic shifts from simple to more complex—species rich and spatially structured—systems could contribute to expanding our understanding of how nature works and improve our ability to anticipate the effects of global change on ecological systems. Read the full article at: royalsocietypublishing.org
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june holley
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Ric Sims and Özlem Yilmaz Adaptive Behavior The tricky question in the plant cognition debate is what theory of cognition should be used to fix the reference of cognitive concepts without skewing the debate too much one way or the other. After all, plants are rather different to animals in many respects: they are not motile, do not possess central nervous systems or even neurons, do not exhibit an invariant morphology, interact with the world in a distributed multi-centred manner, and behave through changes in their physiology. Nonetheless, there is a significant strand in the debate that asserts that plants are indeed cognitive. But what theory of cognition makes sense of this claim without baking in prior zoological assumptions? The aim of this paper is to try out a theory of minimal cognition that makes the claim of plant cognition plausible. It is primarily inspired by the distributed cognition literature and the sensorimotor coordination theory of cognition proposed by van Duijn et al. (2006). We take a cognitive system to be a coordinated set of semi-autonomous processes running over the organism and items in its environment. Coordination is characterised in terms of two functional conditions that ensure that the system generates goal-directed action in the world. The system is stigmergic in the sense that the material results of its actions in the environment are a crucial part of the processes that coordinate further actions. The account possesses a degree of scale invariance and helps unify cognitive explanation across microorganisms, plants and animals. Read the full article at: journals.sagepub.com
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june holley
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Tomasz Korbak Adaptive Behavior 31(1) The notion of self-organisation plays a major role in enactive cognitive science. In this paper, I review several formal models of self-organisation that various approaches in modern cognitive science rely upon. I then focus on Rosen’s account of self-organisation as closure to efficient cause and his argument that models of systems closed to efficient cause – (M, R) systems – are uncomputable. Despite being sometimes relied on by enactivists this argument is problematic it rests on assumptions unacceptable for enactivists: that living systems can be modelled as time-invariant and material-independent. I then argue that there exists a simple and philosophically appealing reparametrisation of (M, R)–systems that accounts for the temporal dimensions of life but renders Rosen’s argument invalid. Read the full article at: journals.sagepub.com
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june holley
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Sean Kelty, Raiyan Abdul Baten, Adiba Mahbub Proma, Ehsan Hoque, Johan Bollen, Gourab Ghoshal
Academic success is distributed unequally; a few top scientists receive the bulk of attention, citations, and resources. However, do these ``superstars" foster leadership in scientific innovation? We introduce three information-theoretic measures that quantify novelty, innovation, and impact from scholarly citation networks, and compare the scholarly output of scientists who are either not connected or strongly connected to superstar scientists. We find that while connected scientists do indeed publish more, garner more citations, and produce more diverse content, this comes at a cost of lower innovation and higher redundancy of ideas. Further, once one removes papers co-authored with superstars, the academic output of these connected scientists diminishes. In contrast, authors that produce innovative content without the benefit of collaborations with scientific superstars produce papers that connect a greater diversity of concepts, publish more, and have comparable citation rates, once one controls for transferred prestige of superstars. On balance, our results indicate that academia pays a price by focusing attention and resources on superstars. Read the full article at: arxiv.org
Via Complexity Digest
June 11 - July 7, 2023. Complex Systems Summer School (CSSS) offers an intensive four-week introduction to complex behavior in mathematical, physical, living, and social systems. CSSS brings together graduate students, postdoctoral fellows, and professionals to transcend disciplinary boundaries, take intellectual risks, and ask big questions about complex systems. The residential program comprises a series of lectures and workshops devoted to theory and tools, applications-focused seminars, and discussions with faculty and fellow participants. CSSS participants put what they learn from these didactic sessions into practice through group research projects, conducted throughout the program and often extending into manuscripts and longer-term collaborations. CSSS provides an unparalleled opportunity for early-career researchers to expand their professional networks, produce a novel research product, and gain valuable experience working in transdisciplinary teams. More at: www.santafe.edu
Via Complexity Digest
The dates for the 2023 school are June 26-30.
The Oxford Summer School in Economic Networks seeks to create a stimulating and friendly environment to bring students from varied disciplines together to learn about theories, techniques, quantitative methods, applications and impacts of network theory within economics.
We are excited to host world leading academics, scientists, and global policy makers to guide lectures, engage with students and host workshops on topics relating to network theory and economics. These will include topics of social networks, games and learning, financial networks, economic complexity, urban systems and innovation.
We are looking forward to welcoming a large number of world leading experts pushing the global knowledge frontier across economic networks and complexity science. Confirmed speakers for 2023 include keynote Cesar Hidalgo (University of Toulouse), Renaud Lambiotte (University of Oxford), Josh Becker (University College London), Mohsen Mosleh (University of Exeter), Marya Bazzi (University of Warwick), Balázs Lengyel (Hungarian Academy of Sciences), Riccardo Di Clemente (University of Exeter), Rama Cont (University of Oxford), Andrea Baronchelli (City University of London) and Tiziana di Matteo (King's College London). More speakers will be announced soon.
The Oxford Summer School in Economic Networks is hosted by the Mathematical Institute and the Institute for New Economic Thinking at the Oxford Martin School.
The school is in person only. No lectures will be streamed. Lectures and tutorials will be held in the Department of Statistics (24-29 St Giles', Oxford OX1 3LB) and the Oxford Martin School (34 Broad St, Oxford OX1 3BD).
Read the full article at: www.maths.ox.ac.uk
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Scooped by
june holley
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Eventbrite - Fito Network presents Networks of Networks: A Dinner Table Dialogue - Thursday, January 12, 2023 - Find event and ticket information.
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Scooped by
june holley
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Eventbrite - Fito Network presents Networks of Networks: A Dinner Table Dialogue - Thursday, January 12, 2023 - Find event and ticket information.
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Scooped by
june holley
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The collaborators of the Carbon Almanac Network say their approach requires each person to find their own path to the lead. It’s not traditional but proved it works.
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june holley
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In systems change work, the term “pattern” comes up a lot. We refer to “pattern spotting” as a practice that can help understand the dynamics that characterise a complex system. We ask about “patterns of behaviour” and how to explore their deeper causes. We can even define systems change as “the emergence of a new pattern”, as an outcome where the “pattern of a system has changed”.
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june holley
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Scooped by
june holley
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There are a growing number of people discussing the need for systems in many circles — from service providers, funders, investors, intermediaries, and policymakers.As noted above, most of these discussions focus on the big-picture tasks of pulling various levers from policy changes to new program design.However, in our work alongside public servants, we have found it just as important to focus on how we shift the foundational patterns, behaviours, relationships and interactions that underlie all parts of systems.
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Rescooped by
june holley
from Papers
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Alice Patania, Antoine Allard, Jean-Gabriel Young
We study the problem of clustering networks whose nodes have imputed or physical positions in a single dimension, such as prestige hierarchies or the similarity dimension of hyperbolic embeddings. Existing algorithms, such as the critical gap method and other greedy strategies, only offer approximate solutions. Here, we introduce a dynamic programming approach that returns provably optimal solutions in polynomial time -- O(n^2) steps -- for a broad class of clustering objectives. We demonstrate the algorithm through applications to synthetic and empirical networks, and show that it outperforms existing heuristics by a significant margin, with a similar execution time. Read the full article at: arxiv.org
Via Complexity Digest
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june holley
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Trusting that we have everything we need is a practice of being with what we have, what is here — and trusting in the wisdom that lives in the moment, and everything that conspired to bring us to it.
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Rescooped by
june holley
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Thomas Schmickl Complexity Volume 2022 | Article ID 9956885
Predictions of emergent phenomena, appearing on the macroscopic layer of a complex system, can fail if they are made by a microscopic model. This study demonstrates and analyses this claim on a well-known complex system, Conway’s Game of Life. Straightforward macroscopic mean-field models are easily capable of predicting such emergent properties after they have been fitted to simulation data in an after-the-fact way. Thus, these predictions are macro-to-macro only. However, a micro-to-macro model significantly fails to predict correctly, as does the obvious mesoscopic modeling approach. This suggests that some macroscopic system properties in a complex dynamic system should be interpreted as examples of phenomena (properties) arising from “strong emergence,” due to the lack of ability to build a consistent micro-to-macro model, that could explain these phenomena in a before-the-fact way. The root cause for this inability to predict this in a micro-to-macro way is identified as the pattern formation process, a phenomenon that is usually classified as being of “weak emergence.” Ultimately, this suggests that it may be in principle impossible to discriminate between such distinct categories of “weak” and “strong” emergence, as phenomena of both types can be part of the very same feedback loop that mainly governs the system’s dynamics. Read the full article at: www.hindawi.com
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Rescooped by
june holley
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Arsham Ghavasieh, Manlio De Domenico
Complex network states are characterized by the interplay between system's structure and dynamics. One way to represent such states is by means of network density matrices, whose von Neumann entropy characterizes the number of distinct microstates compatible with given topology and dynamical evolution. In this Letter, we propose a maximum entropy principle to characterize network states for systems with heterogeneous, generally correlated, connectivity patterns and non-trivial dynamics. We focus on three distinct coalescence processes, widely encountered in the analysis of empirical interconnected systems, and characterize their entropy and transitions between distinct dynamical regimes across distinct temporal scales. Our framework allows one to study the statistical physics of systems that aggregate, such as in transportation infrastructures serving the same geographic area, or correlate, such as inter-brain synchrony arising in organisms that socially interact, and active matter that swarm or synchronize. Read the full article at: arxiv.org
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june holley
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Eventbrite - Fito Network presents Networks of Networks: A Dinner Table Dialogue - Thursday, January 12, 2023 - Find event and ticket information.
The Center Leo Apostel for Transdisciplinary Studies (CLEA) at the Vrije Universiteit Brussel (VUB) organises its first international artscience conference: ‘Systems At Play: A Self-Organising Symposium on Self-Organisation’ taking place in Brussels from February 15th until 18th, 2023.
The ‘Systems at Play’ symposium starts from the understanding that art and science are mutually beneficial means of perception and insight creation. It thus provides a transdisciplinary contact zone for artists and scientists to meet, exchange, think, share, take time, and, ultimately, play together.
Then, what shall we talk and play about? Well, it’s up to you where it ends up, but our starting points are the ideas of ‘emergence’, ‘self-organisation’, and ‘goal-directedness’.
As far as goals go, the symposium invites you to tackle creative challenges collectively. During the symposium, participating artists and scientists will together create ‘embodied models of emergence’ in the form of live games, scores, presentations, conversations or small algorithmic performances. We will offer inputs to this process in the form of presentations, talks and workshops during the day; as well as an evening programme of immersive and interactive performances and film screenings. More at: clea.research.vub.be
Via Complexity Digest
The Center Leo Apostel for Transdisciplinary Studies (CLEA) at the Vrije Universiteit Brussel (VUB) organises its first international artscience conference: ‘Systems At Play: A Self-Organising Symposium on Self-Organisation’ taking place in Brussels from February 15th until 18th, 2023.
The ‘Systems at Play’ symposium starts from the understanding that art and science are mutually beneficial means of perception and insight creation. It thus provides a transdisciplinary contact zone for artists and scientists to meet, exchange, think, share, take time, and, ultimately, play together.
Then, what shall we talk and play about? Well, it’s up to you where it ends up, but our starting points are the ideas of ‘emergence’, ‘self-organisation’, and ‘goal-directedness’.
As far as goals go, the symposium invites you to tackle creative challenges collectively. During the symposium, participating artists and scientists will together create ‘embodied models of emergence’ in the form of live games, scores, presentations, conversations or small algorithmic performances. We will offer inputs to this process in the form of presentations, talks and workshops during the day; as well as an evening programme of immersive and interactive performances and film screenings. More at: clea.research.vub.be
Via Complexity Digest
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Scooped by
june holley
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So today I want to explore the transformative potential of learning to sense and feel at three different levels: what in Building Belonging we call the levels of “I, We, World.” The promise of belonging is the promise of integration: it’s about belonging to ourselves, to each other, and to the earth.
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Scooped by
june holley
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Eventbrite - Fito Network presents Networks of Networks: A Dinner Table Dialogue - Thursday, January 12, 2023 - Find event and ticket information.
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Scooped by
june holley
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A free week long event series exploring the power of relational facilitation and transformational teaching online
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Scooped by
june holley
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