In this paper I compare parametric and nonparametric regression models with the help of a simulated data set. Doing so, I have two main objectives. The first one is to differentiate five concepts of simplicity and assess their respective importance. The second one is to show that the scope of the existing philosophical literature on simplicity and model selection is too narrow because it does not take the nonparametric approach into account, S112–S123, 2002; Forster and Sober in The British Journal (...) for the Philosophy of Science 45, 1–35, 1994; Forster, 2001, in Philosophy of Science 74, 588–600, 2007; Hitchcock and Sober in The British Journal for the Philosophy of Science 55, 1–34, 2004; Mikkelson in Philosophy of Science 73, 440–447, 2006; Baker 2013). More precisely, I point out that a measure of simplicity in terms of the number of adjustable parameters is inadequate to characterise nonparametric models and to compare them with parametric models. This allows me to weed out false claims about what makes a model simpler than another. Furthermore, I show that the importance of simplicity in model selection cannot be captured by the notion of parametric simplicity. ‘Simplicity’ is an umbrella term. While parametric simplicity can be ignored, there are other notions of simplicity that need to be taken into consideration when we choose a model. Such notions are not discussed in the previously mentioned literature. The latter therefore portrays an incomplete picture of why simplicity matters when we choose a model. Overall I support a pluralist view according to which we cannot give a general and interesting justification for the importance of simplicity in science. (shrink)

In 1983, in an open letter to the journal Nature, Karl Popper and David Miller set forth a particularly strong critical argument which sought to demonstrate the impossibility of inductive probability. Since its publication the argument has faced many criticisms and we argue in this article that they do not reach their objectives. We will first reconstruct the demonstration made by Popper and Miller in their initial article and then try to evaluate the main arguments against it. Although it is (...) possible to conceptualize logically the idea of induction, it is shown that it is not possible on traditional Bayesian grounds. (shrink)

Bien des difficultés que nous éprouvons à comprendre les oeuvres philosophiques des Anciens proviennent souvent du fait que nous commmettons en les interprétant un double anachronisme: nous croyons que, comme beaucoup d'oeuvres modernes, elles sont destinées à communiquer des informations concernant un contenu conceptuel donné et que nous pouvons aussi en tirer directement des renseignements clairs sur la pensée et la psychologie de leur auteur. Mais en fait, elles sont très souvent des exercices spirituels que l'auteur pratique lui-même et fait (...) pratiquer à son lecteur. Elles sont destinées à former les âmes. Elles ont une valeur psychagogique. (shrink)

The p value is the probability under the null hypothesis of obtaining an experimental result that is at least as extreme as the one that we have actually obtained. That probability plays a crucial role in frequentist statistical inferences. But if we take the word ‘extreme’ to mean ‘improbable’, then we can show that this type of inference can be very problematic. In this paper, I argue that it is a mistake to make such an interpretation. Under minimal assumptions about (...) the alternative hypothesis, I explain why ‘extreme’ means ‘outside the most precise predicted range of experimental outcomes for a given upper bound probability of error’. Doing so, I rebut recent formulations of recurrent criticisms against the frequentist approach in statistics and underscore the importance of random variables. (shrink)

In 1983, in an open letter to the journal Nature, Karl Popper and David Miller set forth a particularly strong critical argument which sought to demonstrate the impossibility of inductive probability. Since its publication the argument has faced many criticisms and we argue in this article that they do not reach their objectives. We will first reconstruct the demonstration made by Popper and Miller in their initial article and then try to evaluate the main arguments against it. Although it is (...) possible to conceptualize logically the idea of induction, it is shown that it is not possible on traditional Bayesian grounds. (shrink)

My aim in this paper is to show how the problem of inflated effect sizes corrupts the severity measure of evidence. This has never been done. In fact, the Winner’s Curse is barely mentioned in the philosophical literature. Since the severity score is the predominant measure of evidence for frequentist tests in the philosophical literature, it is important to underscore its flaws. It is also crucial to bring the philosophical literature up to speed with the limits of classical testing. The (...) Winner’s Curse is one of them. The problem is that when a significant result is obtained by using an underpowered test, the severity score becomes particularly high for large discrepancies from the null-hypothesis. This means that such discrepancies are very well supported by the evidence according to that measure. However, it is now well documented that significant tests with low power display inflated effect sizes. They systematically show departures from the null hypothesis H0 that are much greater than they really are. From an epistemological point of view this means that a significant result produced by an underpowered test does not provide evidence for large discrepancies from H0. Therefore, the severity score is an inadequate measure of evidence. Given that we are now aware of the phenomenon of inflated effect sizes, it would be irresponsible to rely on the severity score to measure the strength of the evidence against the null. Instead, one must take appropriate measures to try and avoid using underpowered tests by setting a threshold for the sample size or by replicating the results of the experiment. (shrink)

It has been claimed that if statistical power and p-values are both used to measure the strength of our evidence for the null-hypothesis when the results of our tests are not significant, then they can also be used to derive inconsistent epistemic judgements as we compare two different experiments. Those problematic derivations are known as power approach paradoxes. The consensus is that we can avoid them if we abandon the idea that statistical power can measure the strength of our evidence. (...) In this paper however, I put forward a different solution. I argue that every power approach paradox rests on an equivocation on "strong evidence". The main idea is that we need to make a careful distinction between the evidence provided by the quality of the test and the evidence provided by the outcome of the test. Both provide different types of evidence and their respective strength are to be evaluated differently. (shrink)

Pierre Bourdieu is arguably one of the twentieth century’s greatest socio-philosophical thinkers and his writings have much to offer anyone interested in the ways that people value, consume and produce architecture. Bourdieu spent much of his life attempting to understand cultural consumption and production through detailed empirical research that included studies of dwellings, art, museums, photography and aesthetics. This book introduces the architectural reader to Bourdieu’s key writings on culture and outlines the ways in which they offer powerful practical (...) tools and novel conceptual frameworks for understanding architectural value, taste, and practice. (shrink)

In this paper I articulate a fictionalist solution to the closure problem that affects constructive empiricism. Relying on Stephen Yablo’s recent study of closure puzzles, I show how we can partition the content of a theory in terms of its truthmakers and claim that a constructive empiricist can believe that all the observable conditions that are necessary to make a part of her theory true obtain and remain agnostic about whether or not the other truthmakers for the other parts of (...) her theory obtain. This can be done even though she asserts her theory as if it was wholly true. (shrink)

In this paper, I compare theory-laden perceptions with imputed data sets. The similarities between the two allow me to show how the phenomenon of theory-ladenness can manifest itself in statistical analyses. More importantly, elucidating the differences between them will allow me to broaden the focus of the existing literature on theory-ladenness and to introduce some much-needed nuances.

The main point of this paper is to underscore that tests with very low power will be significant only if the observations are deviant under both H0 and H1. Therefore, the results of those significant tests will generate misleadingly high severity scores for differences between H0 and H1 that are excessively overestimated. In other words, that measure of evidence is bound to fail in those cases. It will inevitably fail to adequately measure the strength of the evidence provided by tests (...) with low power. (shrink)

The main point of this paper is to underscore the link between simplicity and truth in an unsupervised machine learning context. More precisely, we argue that parametric and dimensional simplicity are not indicators of truth but the methodological principle that urges us to pay attention to such notions of simplicity is truth conducive. The truth that we are looking for are specific geometrical shapes and we know which algorithm can find which shapes provided that we pay attention to parametric and (...) dimensional simplicity. (shrink)

The curse of dimensionality is one of the most prominent challenge that data scientists face when trying to make valuable inferences. It is an epistemic problem that hits particularly hard in "Big Data" research contexts, where the volume of the data set is particularly large. The way in which we tackle with this problem sheds light on the notion of scientific evidence. Yet, it is virtually absent from the current philosophical literature. In this paper, I aim to broaden the focus (...) of that literature by showing that the dimensions in which the data are embedded are an integral part of scientific evidence. This is an aspect of scientific evidence that is often hidden behind the traditional observation/theory dichotomy that we often encounter in philosophy of science. Dimensions are abstract objects. They are not observables like tables and chairs, nor are they entries in a data set. Ultimately, I aim to show that empirical adequacy is not merely a matter of finding the model that best fit the relevant observational data. It is also a matter of finding the model that best fit the relevant observational data inside the relevant dimensions. (shrink)

Machine learning is a scientific discipline that can be divided into two main branches: supervised machine learning and unsupervised machine learning. In this paper, we aim to show just how simplicity matters in unsupervised contexts. This is important because unsupervised machine learning algorithms have barely received any attention in philosophy. Yet, there is a direct link between simplicity and truth in unsupervised contexts that we do not find in their supervised counterparts. This has thus far evaded philosophical discussions on simplicity.

Classical statistical inferences have been criticised for various reasons. To assess the soundness of such criticisms is a very important task because they are widely used in everyday scientific research. This is one of the reasons why the philosophy of statistics is an exciting field of study. In this paper, I focus on two such criticisms. The first one claims that the use of the p-value violates the principle of total evidence. It is a thesis that has been defended by (...) Elliott Sober and Bengt Autzen. The second one says that the result of classical tests does not only depend on the data but on the sampling plan of the experimenter also. The underlying criticism of course is that the sampling plan is not part of the evidence and that classical tests therefore violate PTE. The intentions of the experimenter should not affect the result of an inference. My aim is to show that both criticisms are unsound. Doing so, I hope to clarify the concept of p-value and the nature of the evidence in classical statistical tests. The point of my paper is to show that the identification of the evidence on which those criticisms rest is inadequate. (shrink)

Synthesizing forty years' work by France's leading sociologist, this book exemplifies Bourdieu's unique ability to link sociological theory, historical information, and philosophical thought. It makes explicit the presuppositions of a state of 'scholasticism', a certain leisure liberated from the urgencies of the world. Philosophers have brought these presuppositions into the order of discourse, more to legitimate than analyze them, and this is the primary systematic, epistemological, ethical, and aesthetic error that Bourdieu subjects to methodological critique. Pascalian because he, too, was (...) concerned with symbolic power, he refused the temptation of foundationalist thinking, attended to 'ordinary people', and was determined to seek the reason for seemingly illogical behavior rather than simply condemning it. Bourdieu charts a negative philosophy, whose intellectual debt to such other 'heretical' philosophers as Wittgenstein, Austin, Dewey, and Peirce, renews traditional questioning of concepts of violence, power, time, history, the universal, and the purpose and direction of existence. (shrink)

The authors develop an analysis of education. They show how education carries an essentially arbitrary cultural scheme which is actually based on power. More widely, the reproduction of culture through education is shown to play a key part in the reproduction of the whole social system.

Cambrai, Bibl. munic. 940, ff. 1-59 [integralement reproduit]--Bibl. Vatic. Reg. Lat. 689 A, ff. 334-353.--Bibl. Vatic. Reg. Lat. 1653, ff, 1v-2v (feuilles de garde), ff. 3r, 29r-35r.--Pièces justificatives.

According to an influential view, one function of mirror neurons (MNs), first discovered in the brain of monkeys, is to underlie third‐person mindreading. This view relies on two assumptions: the activity of MNs in an observer’s brain matches (simulates or resonates with) that of MNs in an agent’s brain and this resonance process retrodictively generates a representation of the agent’s intention from a perception of her movement. In this paper, I criticize both assumptions and I argue instead that the activity (...) of MNs in an observer’s brain is enhanced by a prior representation of the agent’s intention and that their task is to predictively compute the best motor command suitable to satisfy the agent’s intention. (shrink)

Martin Heidegger's overt alliance with the Nazis and the specific relation between this alliance and his philosophical thought--the degree to which his concepts are linked to a thoroughly disreputable set of political beliefs--have been the topic of a storm of recent debate. Written ten years before this debate, this study by France's leading sociologist and cultural theorist is both a precursor of that debate and an analysis of the institutional mechanisms involved in the production of philosophical discourse. Though Heidegger is (...) aware of and acknowledges the legitimacy of purely philosophical issues, Bourdieu points out that the complexity and abstraction of Heidegger's philosophical discourse stems from its situation in the cultural field, where two social and intellectual dimensions--political thought and academic thought--intersect. Bourdieu concludes by suggesting that Heidegger should not be considered as a Nazi ideologist, that there is no place in Heidegger's philosophical ideas for a racist conception of the human being. Rather, he sees Heidegger's thought as a structural equivalent in the field of philosophy of the "conservative revolution," of which Nazism is but one manifestation. (shrink)

Are there any advantages to thinking and speaking about ethical business in the language of citizenship? We will address this question in part by looking at the possible relevance of a vast literature on individual citizenship that has been produced by political philosophers over the last fifteen years. Some of the central elements of citizenship do not seem to apply straightforwardly to corporations. E.g., “citizenship” typically implies membership in a state and an identity akinto national identity; but this connotation of (...) citizenship is obviously problematic for multinational corporations. However, the language of citizenship does help to focus our attention on various legal and political virtues for corporations—topics that have been largely neglected by discussions under other rubrics, such as CSR or sustainability. We finish with an evaluation of the potential benefits and costs of conceptualizing and talking about ethical business practices in thelanguage of citizenship.“Citizen” and “Citizenship” are powerful words. They speak of respect, of rights, of dignity.... We find no perjorative uses. It is a weighty, monumental, humanist word.—Fraser and Gordon 1994: 90[The rhetorical appeal to citizenship often] seems to have no purpose other than to add normative weight to a policy, institution or practice that could just asaptly be described without reference to citizenship.—Weinstock 2002: 244. (shrink)

In Kant and the Demands of Self-Consciousness, Pierre Keller examines Kant's theory of self-consciousness and argues that it succeeds in explaining how both subjective and objective experience are possible. Previous interpretations of Kant's theory have held that he treats all self-consciousness as knowledge of objective states of affairs, and also that self-consciousness can be interpreted as knowledge of personal identity. By developing this striking new interpretation Keller is able to argue that transcendental self-consciousness underwrites a general theory of objectivity (...) and subjectivity at the same time. (shrink)

We study one way in which stable phenomena can exist in an NIP theory. We start by defining a notion of ‘pure instability’ that we call ‘distality’ in which no such phenomenon occurs. O-minimal theories and the p-adics for example are distal. Next, we try to understand what happens when distality fails. Given a type p over a sufficiently saturated model, we extract, in some sense, the stable part of p and define a notion of stable independence which is implied (...) by non-forking and has bounded weight. (shrink)

" Faire d'Aristote un Aufklârer serait méconnaître ce qu'il y a en lui de religiosité authentique, cette intuition de la transcendance et du chorismos, qui sont la raison profonde de sa prudence spéculative. Faire d'Aristote un tragique serait méconnaître cette confiance en l'homme, en sa recherche et en son action, qui tranche sur les lamentations du chœur de la tragédie et sur une certaine résignation socratique et, avant la lettre, stoïcienne. Mais Aristote exalte l'homme sans le diviniser ; il en (...) fait le centre de son éthique, mais il sait que l'éthique n'est pas ce qu'il y a de plus haut, que Dieu est au-delà des catégories éthiques, ou plutôt que l'éthique se constitue dans la distance qui sépare l'homme de Dieu. Livré à ses seules forces par un Dieu trop lointain, qui est suffisamment visible pour être désiré, mais se tient trop à distance pour être possédé, l'homme est en butte, dans la région du monde qu'il habite, à un hasard qu'il ne peut entièrement dominer. Ou plutôt la vie de l'homme se meut entre deux hasards : le Hasard fondamental de la naissance, qui fait que la bonne nature n'est pas également partagée ; le hasard résiduel de l'action, qui fait que les résultats ne sont jamais tout à fait prévisibles. Mais le hasard de la naissance est le hasard résiduel de l'action divine, et la grandeur de l'homme consiste, en prolongeant par la prudence l'action d'une Providence défaillante, à reculer le plus possible les limites de l'imprévisible et de l'inhumain. " Pierre Aubenque. (shrink)

Recognized as a masterpiece of Nietzsche scholarship, NIETZSCHE AND THE VICIOUS CIRCLE is available here for the first time in English. Author Pierre Klossowski suggests that Nietzsche's ideas and beliefs did not stem from his personal pathology, but rather were applied in a pathological manner. Thereby Nietzsche's beliefs resonated dynamically and intellectually with his alternating lucidity and delirium.

A presentation and discussion of Gottlob Frege's understanding of language, both natural and artificial, with close attention to his texts.