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Profile: Charlotte Sophie Werndl (London School of Economics)
  1. Roman Frigg & Charlotte Werndl (forthcoming). Explaining the Approach to Equilibrium in Terms of Epsilon-Ergodicity. Philosophy of Science.
     
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  2. Charlotte Werndl & Katie Siobhan Steele (forthcoming). Climate Models, Confirmation and Calibration. British Journal for the Philosophy of Science.
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  3. Charlotte Werndl, On Defining Climate and Climate Change.
    The aim of the paper is to provide a clear and thorough conceptual analysis of the main candidates for a definition of climate and climate change. Five desiderata on a definition of climate are presented: it should be empirically applicable, it should correctly classify different climates, it should not depend on our knowledge, is should be applicable to the past, present and future and it should be mathematically well-defined. Then �five definitions are discussed: climate as distribution over time for constant (...)
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  4. Charlotte Werndl (2013). Justifying Typicality Measures of Boltzmannian Statistical Mechanics and Dynamical Systems. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (4):470-479.
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  5. Charlotte Werndl (2013). On Choosing Between Deterministic and Indeterministic Models: Underdetermination and Indirect Evidence. Synthese 190 (12):2243-2265.
    There are results which show that measure-theoretic deterministic models and stochastic models are observationally equivalent. Thus there is a choice between a deterministic and an indeterministic model and the question arises: Which model is preferable relative to evidence? If the evidence equally supports both models, there is underdetermination. This paper first distinguishes between different kinds of choice and clarifies the possible resulting types of underdetermination. Then a new answer is presented: the focus is on the choice between a Newtonian deterministic (...)
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  6. Roman Frigg & Charlotte Werndl, A New Approach to the Approach to Equilibrium.
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  7. Roman Frigg & Charlotte Werndl (2012). Demystifying Typicality. Philosophy of Science 79 (5):917-929.
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  8. Charlotte Werndl (2012). Evidence for the Deterministic or the Indeterministic Description? A Critique of the Literature About Classical Dynamical Systems. Journal for General Philosophy of Science 43 (2):295-312.
    It can be shown that certain kinds of classical deterministic and indeterministic descriptions are observationally equivalent. Then the question arises: which description is preferable relative to evidence? This paper looks at the main argument in the literature for the deterministic description by Winnie (The cosmos of science—essays of exploration. Pittsburgh University Press, Pittsburgh, pp 299–324, 1998). It is shown that this argument yields the desired conclusion relative to in principle possible observations where there are no limits, in principle, on observational (...)
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  9. Roman Frigg & Charlotte Werndl (2011). A Guide for the Perplexed. In Claus Beisbart & Stephan Hartmann (eds.), Probabilities in Physics. Oxford University Press. 115.
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  10. Roman Frigg & Charlotte Werndl (2011). Entropy-A Guide for the Perplexed. In Claus Beisbart & Stephan Hartmann (eds.), Probabilities in Physics. Oxford University Press.
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  11. Roman Frigg & Charlotte Werndl (2011). Explaining Thermodynamic-Like Behavior in Terms of Epsilon-Ergodicity. Philosophy of Science 78 (4):628-652.
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  12. Charlotte Werndl (2011). On the Observational Equivalence of Continuous-Time Deterministic and Indeterministic Descriptions. European Journal for Philosophy of Science 1 (2):193-225.
    On the observational equivalence of continuous-time deterministic and indeterministic descriptions Content Type Journal Article Pages 193-225 DOI 10.1007/s13194-010-0011-5 Authors Charlotte Werndl, Department of Philosophy, Logic and Scientific Method, London School of Economics, Houghton Street, London, WC2A 2AE UK Journal European Journal for Philosophy of Science Online ISSN 1879-4920 Print ISSN 1879-4912 Journal Volume Volume 1 Journal Issue Volume 1, Number 2.
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  13. Charlotte Werndl, Observational Equivalence of Deterministic and Indeterministic Descriptions and the Role of Different Observations.
    Recently some results have been presented which show that certain kinds of deterministic descriptions and indeterministic descriptions are observationally equivalent (Werndl 2009a, 2010). This paper focuses on some philosophical questions prompted by these results. More specifically, first, I will discuss the philosophical comments made by mathematicians about observational equivalence, in particular Ornstein and Weiss (1991). Their comments are vague, and I will argue that, according to a reasonable interpretation, they are misguided. Second, the results on observational equivalence raise the question (...)
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  14. Charlotte Werndl (2009). Are Deterministic Descriptions and Indeterministic Descriptions Observationally Equivalent? Studies in History and Philosophy of Science Part B 40 (3):232-242.
    The central question of this paper is: are deterministic and indeterministic descriptions observationally equivalent in the sense that they give the same predictions? I tackle this question for measure-theoretic deterministic systems and stochastic processes, both of which are ubiquitous in science. I first show that for many measure-theoretic deterministic systems there is a stochastic process which is observationally equivalent to the deterministic system. Conversely, I show that for all stochastic processes there is a measure-theoretic deterministic system which is observationally equivalent (...)
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  15. Charlotte Werndl, Deterministic Versus Indeterministic Descriptions: Not That Different After All?
    The guiding question of this paper is: how similar are deterministic descriptions and indeterministic descriptions from a predictive viewpoint? The deterministic and indeterministic descriptions of concern in this paper are measure-theoretic deterministic systems and stochastic processes, respectively. I will explain intuitively some mathematical results which show that measure-theoretic deterministic systems and stochastic processes give more often the same predictions than one might perhaps have expected, and hence that from a predictive viewpoint these descriptions are quite similar.
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  16. Charlotte Werndl (2009). Justifying Definitions in Mathematics—Going Beyond Lakatos. Philosophia Mathematica 17 (3):313-340.
    This paper addresses the actual practice of justifying definitions in mathematics. First, I introduce the main account of this issue, namely Lakatos's proof-generated definitions. Based on a case study of definitions of randomness in ergodic theory, I identify three other common ways of justifying definitions: natural-world justification, condition justification, and redundancy justification. Also, I clarify the interrelationships between the different kinds of justification. Finally, I point out how Lakatos's ideas are limited: they fail to show how various kinds of justification (...)
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  17. Charlotte Werndl (2009). What Are the New Implications of Chaos for Unpredictability? British Journal for the Philosophy of Science 60 (1):195-220.
    From the beginning of chaos research until today, the unpredictability of chaos has been a central theme. It is widely believed and claimed by philosophers, mathematicians and physicists alike that chaos has a new implication for unpredictability, meaning that chaotic systems are unpredictable in a way that other deterministic systems are not. Hence, one might expect that the question ‘What are the new implications of chaos for unpredictability?’ has already been answered in a satisfactory way. However, this is not the (...)
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  18. A. J. J. Anglberger, B. Armstrong, W. F. Berger, N. Gratzl & Charlotte Werndl (2005). Book Review: Rezension: Rationalität in der Angewandten Ethik. [REVIEW] Kriterion: Journal of Philosophy 19:44-53.
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