Discrimination in decision making is prohibited on many attributes, but often present in historical decisions. Use of such discriminatory historical decision making as training data can perpetuate discrimination, even if the protected attributes are not directly present in the data. This work focuses on discovering discrimination in instances and preventing discrimination in classification. First, we propose a discrimination discovery method based on modeling the probability distribution of a class using Bayesian networks. This measures the effect of a protected attribute in (...) a subset of the dataset using the estimated probability distribution. Second, we propose a classification method that corrects for the discovered discrimination without using protected attributes in the decision process. We evaluate the discrimination discovery and discrimination prevention approaches on two different datasets. The empirical results show that a substantial amount of discrimination identified in instances is prevented in future decisions. (shrink)

The city of Melitene in eastern Asia Minor/western Armenia presents a peculiar case in the study of Byzantine-Islamic commerce in the early Middle Ages, because, unlike Trebizond or Attaleia, its commerce was entirely based on land-route connections, and the available evidence does not identify it as a town deliberately designated as a commercial exchange point by the Byzantine authorities. My purpose is to find an answer to the question of how Byzantine- Islamic trade took place in a location on the (...) eastern land frontier where the coexistence of war and trade was a daily reality. The products and export items as well as the routes of the Melitene zone and its neighboring regions (Cappadocia, Pontos, Armenia) are examined in order to situate Melitene in a larger commercial context. I argue that Melitene prospered commercially in the middle of war zone for centuries and that its commercial fortunes began to improve especially by the beginning of the tenth century, reaching their climax in the eleventh century. (shrink)

In this paper, I propose an account that accommodates the possibility of experimentation being exploratory in cases where the procedures necessary to plan and perform an experiment are dependent on the theoretical accounts of the phenomena under investigation. The present account suggests that experimental exploration requires the implementation of an exploratory procedure that serves to extend the range of possible outcomes of an experiment, thereby enabling it to pursue its objectives. Furthermore, I argue that the present account subsumes the notion (...) of exploratory experimentation, which is often attributed in the relevant literature to the works of Friedrich Steinle and Richard Burian, as a particular type of experimental exploration carried out in the special cases where no well-formed theoretical framework of the phenomena under investigation exists. I illustrate the present account in the context of the ATLAS experiment at CERN’s Large Hadron Collider, where the long-sought Higgs boson has been discovered in 2012. I argue that the data selection procedure carried out in the ATLAS experiment illustrates an exploratory procedure in the sense suggested by the present account. I point out that this particular data selection procedure is theory-laden in that its implementation is crucially dependent on the theoretical models of high energy particle physics which the ATLAS experiment is aimed to test. However, I argue that the foregoing procedure is not driven by the above-mentioned theoretical models, but rather by a particular data selection strategy. I conclude that the ATLAS experiment illustrates that, contrary to what previous studies have suggested, there are cases of experimentation in which exploration serves to test theoretical predictions and that theory-ladenness plays an essential role in experimentation being exploratory. (shrink)

ArgumentIn the theory-dominated view of scientific experimentation, all relations of theory and experiment are taken on a par; namely, that experiments are performed solely to ascertain the conclusions of scientific theories. As a result, different aspects of experimentation and of the relations of theory to experiment remain undifferentiated. This in turn fosters a notion of theory-ladenness of experimentation (TLE) that is toocoarse-grainedto accurately describe the relations of theory and experiment in scientific practice. By contrast, in this article, I suggest that (...) TLE should be understood as anumbrella conceptthat has different senses. To this end, I introduce a three-fold distinction among the theories of high-energy particle physics (HEP) as background theories, model theories, and phenomenological models. Drawing on this categorization, I contrast two types of experimentation, namely, “theory-driven” and “exploratory” experiments, and I distinguish between the “weak” and “strong” senses of TLE in the context of scattering experiments from the history of HEP. This distinction enables identifying the exploratory character of the deep-inelastic electron-proton scattering experiments – performed at the Stanford Linear Accelerator Center (SLAC) between the years 1967 and 1973 – thereby shedding light on a crucial phase of the history of HEP, namely, the discovery of “scaling,” which was the decisive step towards the construction of quantum chromo-dynamics as a gauge theory of strong interactions. (shrink)

According to the hierarchy of models (HoM) account of scientific experimentation developed by Patrick Suppes and elaborated by Deborah Mayo, theoretical considerations about the phenomena of interest are involved in an experiment through theoretical models that in turn relate to experimental data through data models, via the linkage of experimental models. In this paper, I dispute the HoM account in the context of present-day high-energy physics (HEP) experiments. I argue that even though the HoM account aims to characterize experimentation as (...) a model-based activity, it does not involve a modeling concept for the process of data acquisition, and it thus fails to provide a model-based characterization of the theory-experiment relationship underlying this process. In order to characterize the foregoing relationship, I propose the concept of a model of data acquisition and illustrate it in the case of the ATLAS experiment at CERN’s Large Hadron Collider, where the Higgs boson was discovered in 2012. I show that the process of data acquisition in the ATLAS experiment is performed according to a model of data acquisition that specifies and organizes the experimental procedures necessary to select the data according to a predetermined set of selection criteria. I also point out that this data acquisition model is theory-laden, in the sense that the underlying data selection criteria are determined by considering the testable predictions of the theoretical models that the ATLAS experiment is aimed to test. I take this sense of theory-ladenness to indicate that the relationship between the procedures of the ATLAS experiment and the theoretical models of the phenomena of interest is first established, prior to the formation of data models, through the data acquisition model of the experiment, thus not requiring the intermediary of other types of models as suggested by the HoM account. I therefore conclude that in the context of present-day HEP experiments, the HoM account does not consistently extend to the process of data acquisition so as to include models of data acquisition. (shrink)

According to the hierarchy of models account of scientific experimentation developed by Patrick Suppes and elaborated by Deborah Mayo, theoretical considerations about the phenomena of interest are involved in an experiment through theoretical models that in turn relate to experimental data through data models, via the linkage of experimental models. In this paper, I dispute the HoM account in the context of present-day high-energy physics experiments. I argue that even though the HoM account aims to characterize experimentation as a model-based (...) activity, it does not involve a modeling concept for the process of data acquisition, and it thus fails to provide a model-based characterization of the theory-experiment relationship underlying this process. In order to characterize the foregoing relationship, I propose the concept of a model of data acquisition and illustrate it in the case of the ATLAS experiment at CERN’s Large Hadron Collider, where the Higgs boson was discovered in 2012. I show that the process of data acquisition in the ATLAS experiment is performed according to a model of data acquisition that specifies and organizes the experimental procedures necessary to select the data according to a predetermined set of selection criteria. I also point out that this data acquisition model is theory-laden, in the sense that the underlying data selection criteria are determined by considering the testable predictions of the theoretical models that the ATLAS experiment is aimed to test. I take this sense of theory-ladenness to indicate that the relationship between the procedures of the ATLAS experiment and the theoretical models of the phenomena of interest is first established, prior to the formation of data models, through the data acquisition model of the experiment, thus not requiring the intermediary of other types of models as suggested by the HoM account. I therefore conclude that in the context of present-day HEP experiments, the HoM account does not consistently extend to the process of data acquisition so as to include models of data acquisition. (shrink)

I examine the construction process of the “Higgs mechanism” and its subsequent use by Steven Weinberg to formulate the electroweak theory of elementary particle physics. I characterize the development of the Higgs mechanism as a historical process that was guided through analogies drawn to the theories of solid-state physics and that was progressive through diverse contributions in the sixties from a number of physicists working independently. I also offer a detailed comparative study of the similarities and the differences that exist (...) between the approaches taken in these contributions. (shrink)

I examine the construction and evaluation of machine learning binary classification models. These models are increasingly used for societal applications such as classifying patients into two categories according to the presence or absence of a certain disease like cancer and heart disease. I argue that the construction of ML classification models involves an optimisation process aiming at the minimization of the inductive risk associated with the intended uses of these models. I also argue that the construction of these models is (...) underdetermined by the available data, and that this makes it necessary for ML modellers to make social value judgments in determining the error costs used in ML optimization. I thus suggest that the assessment of the inductive risk with respect to the social values of the intended users is an integral part of the construction and evaluation of ML classification models. I also discuss the implications of this conclusion for the philosophical debate concerning inductive risk. (shrink)

In relatively recent years, quite a number of diverse case studies concerning the use of visual displays—such as graphs, diagrams, tables, pictures, drawings, etc.—in both the physical and biological sciences have been offered in the literature of the history and philosophy of science —see, e.g., Miller 1984; Lynch and Woolgar 1990; Baigrie 1996; Pauwels 2006. These case studies have shown that visual representations fulfill important functions in both the theoretical and experimental practices of science, thereby emphasizing the non-verbal dimension of (...) scientific inquiry that had been neglected by the traditional language-based conception of science, which takes the production, justification and... (shrink)

This study deals with the place and meaning of "legality" in Kant's moral philosophy. Although the return to Kantianism dominates contemporary political and legal thought, the boundaries of the analyses of the relationship between morality and legality in Kant's moral philosophy are confined to the boundaries drawn by John Rawls and Jürgen Habermas. While Rawls and Habermas consider law and morality as intersecting sets of rules and rights, they mostly consider this relationship in terms of the question of the legitimacy (...) of law. By contrast, this study is an attempt to reconsider the Kantian link between morality and legality beyond the question of the legitimacy of law. Without the deontological filters of the Rawlsian and Habermasian political and legal theory, and therefore without leaving teleological and axiological concerns outside of the field of application, this study is an attempt to analyze the possible ways of understanding the conceptual connection between morality and legality in Kant's moral philosophy. Hence in this study, by paying particular attention to The Groundwork of the Metaphysics of Morals and The Metaphysics of Morals, I will analyze the role of legality in Kant's morality. The study first explains the goals of Groundwork and Metaphysics as Kant describes them. The study then turns to the discussion of duty as the central concept of Kant's thought. In the process, the study questions the possible ways of understanding the conceptual relationship between moral and legal obligation in Kant's thought, and mainly emphasizes two possible different conceptualizations of that relationship, (a) The first understanding can be constructed on the claim that the obligation of the moral subject is also to follow the fundamental principles of morality, the Categorical Imperative, in the legal order, which is part of the phenomenal world. The main point of this understanding lies in the idea that Kant's understanding of legal obligation presupposes the will's capacity to abstract from inclinations, (b) The second understanding, in contrast to the first one, can be built on the belief that moral and legal obligations should be conceived as completely distinct and non-intersecting in Kant's moral philosophy. From this perspective, neither moral obligation nor legal obligation can affect each other. The study concludes by focusing on moderate interventionism as a possible third option for linking moral and legal obligations in Kant's moral philosophy. (shrink)

This study deals with the place and meaning of "legality" in Kant's moral philosophy. Although the return to Kantianism dominates contemporary political and legal thought, the boundaries of the analyses of the relationship between morality and legality in Kant's moral philosophy are confined to the boundaries drawn by John Rawls and Jürgen Habermas. While Rawls and Habermas consider law and morality as intersecting sets of rules and rights, they mostly consider this relationship in terms of the question of the legitimacy (...) of law. By contrast, this study is an attempt to reconsider the Kantian link between morality and legality beyond the question of the legitimacy of law. Without the deontological filters of the Rawlsian and Habermasian political and legal theory, and therefore without leaving teleological and axiological concerns outside of the field of application, this study is an attempt to analyze the possible ways of understanding the conceptual connection between morality and legality in Kant's moral philosophy. Hence in this study, by paying particular attention to The Groundwork of the Metaphysics of Morals and The Metaphysics of Morals, I will analyze the role of legality in Kant's morality. The study first explains the goals of Groundwork and Metaphysics as Kant describes them. The study then turns to the discussion of duty as the central concept of Kant's thought. In the process, the study questions the possible ways of understanding the conceptual relationship between moral and legal obligation in Kant's thought, and mainly emphasizes two possible different conceptualizations of that relationship, The first understanding can be constructed on the claim that the obligation of the moral subject is also to follow the fundamental principles of morality, the Categorical Imperative, in the legal order, which is part of the phenomenal world. The main point of this understanding lies in the idea that Kant's understanding of legal obligation presupposes the will's capacity to abstract from inclinations, The second understanding, in contrast to the first one, can be built on the belief that moral and legal obligations should be conceived as completely distinct and non-intersecting in Kant's moral philosophy. From this perspective, neither moral obligation nor legal obligation can affect each other. The study concludes by focusing on moderate interventionism as a possible third option for linking moral and legal obligations in Kant's moral philosophy. (shrink)

This study deals with the place and meaning of "legality" in Kant's moral philosophy. Although the return to Kantianism dominates contemporary political and legal thought, the boundaries of the analyses of the relationship between morality and legality in Kant's moral philosophy are confined to the boundaries drawn by John Rawls and Jürgen Habermas. While Rawls and Habermas consider law and morality as intersecting sets of rules and rights, they mostly consider this relationship in terms of the question of the legitimacy (...) of law. By contrast, this study is an attempt to reconsider the Kantian link between morality and legality beyond the question of the legitimacy of law. Without the deontological filters of the Rawlsian and Habermasian political and legal theory, and therefore without leaving teleological and axiological concerns outside of the field of application, this study is an attempt to analyze the possible ways of understanding the conceptual connection between morality and legality in Kant's moral philosophy. Hence in this study, by paying particular attention to The Groundwork of the Metaphysics of Morals and The Metaphysics of Morals, I will analyze the role of legality in Kant's morality. The study first explains the goals of Groundwork and Metaphysics as Kant describes them. The study then turns to the discussion of duty as the central concept of Kant's thought. In the process, the study questions the possible ways of understanding the conceptual relationship between moral and legal obligation in Kant's thought, and mainly emphasizes two possible different conceptualizations of that relationship, (a) The first understanding can be constructed on the claim that the obligation of the moral subject is also to follow the fundamental principles of morality, the Categorical Imperative, in the legal order, which is part of the phenomenal world. The main point of this understanding lies in the idea that Kant's understanding of legal obligation presupposes the will's capacity to abstract from inclinations, (b) The second understanding, in contrast to the first one, can be built on the belief that moral and legal obligations should be conceived as completely distinct and non-intersecting in Kant's moral philosophy. From this perspective, neither moral obligation nor legal obligation can affect each other. The study concludes by focusing on moderate interventionism as a possible third option for linking moral and legal obligations in Kant's moral philosophy. (shrink)

In the philosophical literature concerning scientific experimentation, the notion of robustness has been solely discussed in relation to experimental results. In this paper, I propose a novel sense of experimental robustness that applies to experimental procedures. I call the foregoing sense of robustness procedure robustness and characterize it as the capacity of an experimental procedure to maintain its intended function invariant during the experimental process despite possible variations in its inputs. I argue that PR is a precondition for what I (...) call result robustness, which refers to the traditional sense of experimental robustness, namely the existence of convergent experimental results obtained through different and independent means of detection. Furthermore, I argue, PR and RR constitute useful experimental strategies in the context of high-energy physics experiments, but these strategies are not without limitations. (shrink)

In the theory-dominated view of scientific experimentation, all relations of theory and experiment are taken on a par; namely, that experiments are performed solely to ascertain the conclusions of scientific theories. As a result, different aspects of experimentation and of the relation of theory to experiment remain undifferentiated. This in turn fosters a notion of theory-ladenness of experimentation that is too coarse-grained to accurately describe the relations of theory and experiment in scientific practice. By contrast, in this article, I suggest (...) that TLE should be understood as an umbrella concept that has different senses. To this end, I introduce a three-fold distinction among the theories of high-energy particle physics as background theories, model theories and phenomenological models. Drawing on this categorization, I contrast two types of experimentation, namely, “theory-driven” and “exploratory” experiments, and I distinguish between the “weak” and “strong” senses of TLE in the context of scattering experiments from the history of HEP. This distinction enables to identify the exploratory character of the deep-inelastic electron-proton scattering experiments—performed at the Stanford Linear Accelerator Center between the years 1967 and 1973—thereby shedding light on a crucial phase of the history of HEP, namely, the discovery of “scaling”, which was the decisive step towards the construction of quantum chromo-dynamics as a gauge theory of strong interactions. (shrink)

I examine the relation between explanation and unification in both the original Kaluza–Klein theory, which originated in the works of Theodor Kaluza and Oskar Klein in the 1920s, and in the modern Kaluza–Klein theories which date back to the late 1970s and which are still considered by the majority of the physics community to be the best hope for a complete unified theory of all fundamental interactions. I use the conclusions of this case study to assess the merits of Philip (...) Kitcher's account of explanation as unification. I also draw lessons about physicists’ pursuit of the higher dimensional unification of the fundamental forces of nature. (shrink)

Gravity’s Ghost is a book about the search for gravitational waves , which are predicted by the general theory of relativity to be ripples in space–time that propagate at the speed of light. The direct detection of GWs, if they exist at all, is exceptionally difficult, because they are theoretically expected to be very weakly coupled to matter. To this date, there is yet no conclusive evidence for the direct detection of GWs. The search for GWs was started by a (...) series of experiments performed by Joseph Weber in the 1960s. The history of the early GW detection experiments, as well as Weber’s claimed detection of GWs, which was eventually discredited, has been examined in great details by Harry Collins .Collins has long advocated a sociological approach to the study of scientific research groups that is premised on the view that in order to understand how scientific knowledge is produced collectively by a group of researchers, it is necessary to engage in the cultu .. (shrink)

The present special section brings together three articles that seek to elucidate the epistemological and ontological foundations of the Higgs mechanism, as well as the epistemic dynamics of the development of the models beyond the “standard model” of elementary particle physics.The standard model of elementary particle physics consists of two gauge theories; namely, the electroweak theory of the weak and electromagnetic interactions, and the theory of quantum chromo-dynamics which describes the strong interaction. This introduction will provide a brief overview of (...) the key issues concerning the foundations of the Higgs mechanism.Historically, the main motivation for the Higgs mechanism stemmed from the need to account for the non-zero masses of the intermediate vector bosons of the weak interaction within a gauge theory of the Yang-Mills type. One way to give mass to the IVBs, called “explicit symmetry breaking,” is to add mass terms directly to the Lagrangian of the gauge theor .. (shrink)

In this paper, I address the issue of to what extent the theory-dominated view of scientific experimentation describes scientific practice. I rely on a time period from the history of High Energy Physics (HEP), which spans from early 1960s to early 1970s. I argue that theory-ladenness of experimentation (TLE), which grounds theory-dominated conception of experimentation is too coarse-grained inasmuch as it prevents us from seeing the correct relationship that exists between theorizing and experimenting in the scientific practice of HEP. I (...) articulate that in order to be able to get a better understanding of scientific practice, a revision needs to be made in the general conception of TLE. I propose that such a revision is possible if we abandon the commitment that experimentation is always driven by theory. I consider what I call “theory-drivenness” of experimentation (TDE) as a form of theory-ladenness, which amounts to the claim that experiments, from their initial design up to their final stage, are carried out under the framework of a prevailing theory for the purpose of providing definite answers to specific questions already posed by the same theory. I argue that electron-proton inelastic scattering experiments in HEP were firstly carried out without having any recourse to a phenomenological model. From here, I claim that these experiments are not theory-laden in the sense implied by TDE. On the other hand, I argue, inelastic scattering experiments are theory-laden due to the fact that the scientists who perform them are committed to background theories of HEP. That is, I admit the validity of TLE as a philosophical claim, but I attribute a weaker status to it as opposed to its general conception. That is, I propose to differentiate TDE from TLE by claiming that TLE does not entail TDE. (shrink)

We examine physicists’ charge of ad hocness against the Higgs mechanism in the standard model of elementary particle physics. We argue that even though this charge never rested on a clear-cut and well-entrenched definition of “ad hoc”, it is based on conceptual and methodological assumptions and principles that are well-founded elements of the scientific practice of high-energy particle physics. We further evaluate the implications of the recent discovery of a Higgs-like particle at the CERN’s Large Hadron Collider for the charge (...) of ad hocness against the Higgs mechanism. (shrink)

Medical assistance in dying was legalized in Canada in 2016. As of July 2017, approximately 2149 patients have accessed MAID. There remains no national-level data on the perspectives of future physicians about MAID or its changing legal status. We provide evidence from a national survey of Canadian medical students about their opinions, intentions, and concerns about MAID. From October 2016 to July 2017, we distributed an anonymous online survey to all students at 15 of Canada’s 17 medical schools. The survey (...) collected data on respondent socio-demographic characteristics, features of their medical education, intentions for medical practice, and perspectives on MAID. We analyzed responses using univariate descriptive and stepwise multivariate logistic regression. In 1210 completed surveys, 71% of respondents reported being willing to provide MAID under a legal framework that permits it. Non-religious respondents reported greater willingness to participate in MAID than respondents of any religious affiliation. Frequency of religious attendance was inversely associated with willingness to provide MAID. Medical students born in Québec were more willing to provide MAID than respondents from other provinces. Age, sex, socioeconomic status, year of medical study, previous academic major, and rural/urban city of birth were not associated with willingness to provide MAID. As the current class of medical students becomes the first cohort of new physicians to enter Canada’s changing medical and legal landscape around MAID, our findings inform the public debate by examining attributes associated with support or opposition to the practice. (shrink)

Intergenerational altruism is an important area of research to understand the impact of culture on economic outcomes. We hypothesize based on recent research about intergenerational altruism and tough love model that worldviews, religious beliefs, and people’s confidence about their worldviews affect intergenerational altruistic economic behaviour. We extend the research on the impact of worldviews on intergenerational altruism by focusing on Turkey. In the empirical analysis, we run probit regressions using data from a large national survey. We find that worldviews, religiosity, (...) and confidence of individuals about their worldviews impact on intergenerational altruistic economic behaviour in Turkey. (shrink)