Phylogenetic models traditionally represent the history of life as having a strictly-branching tree structure. However, it is becoming increasingly clear that the history of life is often not strictly-branching; lateral gene transfer, endosymbiosis, and hybridization, for example, can all produce lateral branching events. There is thus motivation to allow phylogenetic models to have a reticulate structure. One proposal involves the reconciliation of genealogical discordance. Briefly, this method uses patterns of disagreement – discordance – between trees of different genes to add (...) lateral branching events to phylogenetic trees of taxa, and to estimate the most likely cause of these events. I use this practice to argue for: (1) a need for expanded accounts of multiple-models idealization, (2) a distinction between automatic and manual de-idealization, and (3) recognition that idealization may serve the meso-level aims of science in a different way than hitherto acknowledged. (shrink)

Questions concerning the epistemological status of computer science are, in this paper, answered from the point of view of the formal verification framework. State space reduction techniques adopted to simplify computational models in model checking are analysed in terms of Aristotelian abstractions and Galilean idealizations characterizing the inquiry of empirical systems. Methodological considerations drawn here are employed to argue in favour of the scientific understanding of computer science as a discipline. Specifically, reduced models gained by Dataion are acknowledged as (...) Aristotelian abstractions that include only data which are sufficient to examine the interested executions. The present study highlights how the need to maximize incompatible properties is at the basis of both Abstraction Refinement, the process of generating a cascade of computational models to achieve a balance between simplicity and informativeness, and the Multiple Model Idealization approach in biology. Finally, fairness constraints, imposed to computational models to allow fair behaviours only, are defined as ceteris paribus conditions under which temporal formulas, formalizing software requirements, acquire the status of law-like statements about the software systems executions. (shrink)

This paper is an interpretation and defense of Richard Levins’ “The Strategy of Model Building in Population Biology,” which has been extremely influential among biologists since its publication 40 years ago. In this article, Levins confronted some of the deepest philosophical issues surrounding modeling and theory construction. By way of interpretation, I discuss each of Levins’ major philosophical themes: the problem of complexity, the brute-force approach, the existence and consequence of tradeoffs, and robustness analysis. I argue that Levins’ article (...) is concerned, at its core, with justifying the use of multiple, idealized models in population biology. (shrink)

This paper adopts a symmetrical approach tocontroversies over R.H. MacArthur and E.O. Wilson'sequilibrium model of island biogeography, in order toshow how different interpretations of the model dependupon different philosophical understandings of theapplication of models and theories. In particular,there are quite distinct domains to which the modelcould apply; in addition, some equivocation amongthese domains is important to the model's success.Therefore, apparently inconsistent interpretations,interpretations that fit into roughly instrumentalist,realist and rationalist conceptions of science, may bemutually supporting in practice. Descriptions (...) ofscientific practice, then, should not adjudicate amongthese interpretations, but should instead recognizeways in which successful models translate amongdomains, and in so doing can become realistic,instrumentally successful, or rationally established.As complex social objects, models can afford complexrepresentational relations. (shrink)

This paper introduces and defends an account of model-based science that I dub model pluralism. I argue that despite a growing awareness in the philosophy of science literature of the multiplicity, diversity, and richness of models and modeling practices, more radical conclusions follow from this recognition than have previously been inferred. Going against the tendency within the literature to generalize from single models, I explicate and defend the following two core theses: any successful analysis of models must target (...) sets of models, their multiplicity of functions within science, and their scientific context and history and for almost any aspect x of phenomenon y, scientists require multiple models to achieve scientific goal z. (shrink)

There is much debate on how social values should influence scientific research. However, the question of practical applicability of philosophers’ normative proposals has received less attention. Here, we test the attainability of Matthew J. Brown’s (2020) Moral Imagination ideal (MI ideal), which aims to help scientists to make warranted value-judgements through reflecting on goals, options, values, and stakeholders of research. Here, the tools of the MI ideal are applied to a climate modelling setting, where researchers are developing aerosol-cloud interaction (ACI) (...) parametrizations in an Earth System Model with the broader goal of improving climate sensitivity estimation. After the identification of minor obstacles to applying the MI ideal, we propose two ways to increase its applicability. First, its tools should be accompanied with more concrete guidance for identifying how social values enter more technical decisions in scientific research. Second, since research projects can have multiple goals, examining the alignment between broader societal aims of research and more technical goals should be part of the tools of the MI ideal. (shrink)

Both questions as abstract objects and the speech acts, here called requests, by which we ask them play an enormous role in all argumentative practices. Nonetheless, there is hardly a proper systematic treatment of questions and requests in current argumentation theories. This paper is a first attempt at providing such a systematic treatment. This is achieved by following the ideal model of a critical discussion as elaborated over the years by the Amsterdam school of pragma-dialectics. After introducing the distinction (...) between questions and requests, the paper sets forth and illustrates the norms of questioning which implicitly underlie the four stages of a critical discussion in the standard order: confrontation, opening, argumentation, and conclusion. Among other things, it is shown that crucial insights of pragma-dialectics are illuminated by the questioning perspective, in particular the distinction between single and multiple differences of opinion, the duties of the antagonist and protagonist roles, the precise character of the argumentation stage, and the different ways in which a disagreement can be resolved. (shrink)

This article reviews the recent literature on idealization, specifically idealization in the course of scientific modeling. We argue that idealization is not a unified concept and that there are three different types of idealization: Galilean, minimalist, and multiple models, each with its own justification. We explore the extent to which idealization is a permanent feature of scientific representation and discuss its implications for debates about scientific realism.

Multiply realizable kinds are scientifically problematic, for it appears that we should not expect discoveries about them to hold of other members of that kind. As such, it looks like MR kinds should have no place in the ontology of the special sciences. Many resist this conclusion, however, because we lack a positive account of the role that certain realization-unrestricted terms play in special science explanations. I argue that many such terms actually pick out idealizing models. Idealizing explanation has many (...) of the features normally associated with explanation by MR kinds. As idealized models are usually mere possibilia, such explanations do not run afoul of the metaphysical problems that plague MR kinds. (shrink)

Given that scientific realism is based on the assumption that there is a connection between a model's predictive success and its truth, and given the success of multiple incompatible models in scientific practice, the realist has a problem. When the different models can be shown to arise as different approximations to a unified theory, however, one might think the realist to be able to accommodate such cases. I discuss a special class of models and argue that a realist (...) interpretation has to understand these models of a system as ‘ perspectival ’, in close analogy to different spatial perspectives onto the same object. For this sort of case, I also respond to Morrison's recent claim that in the process of unifying models into an overarching theory, explanatory and descriptive power are lost, leaving the unified theory with less of a claim to a realist interpretation than the models themselves. Introduction Perspectival models from singular perturbation problems Unification of perspectives without losses of explanatory power Perspectives as different levels of a system Perspectival models, idealizations and pluralism. (shrink)

Economists often consult multiple models in order to combat model uncertainty in the face of misspecification. By examining modeling practices at the Bank of England, this paper identifies an important, but underappreciated modeling procedure. Sometimes an idealized model is manipulated to reproduce the results from another distinct auxiliary model, ones which it could not produce on its own. However, this procedure does not involve making the original model “more realistic,” insofar as this means adding in (...) additional causal factors. This suggests that there are ways to make models more representationally adequate that do not involve de-idealization in the straightforward sense. (shrink)

Embryonic stem cells are derived from the preimplantation embryo and can differentiate into virtually any other cell type, which is governed by lineage specific transcriptions factors binding to cis regulatory elements to mediate changes in gene expression. The reliance on transcriptional regulation to maintain pluripotency makes ESCs a valuable model to study the role of distal CREs such as enhancers in modulating gene expression to affect cell fate decisions. This review will highlight recent advance on transcriptional enhancers, focusing on (...) studies performed in ESCs. In addition, we argue that the Nanog locus, which encodes for an ESC-critical TF, is particularly informative because it contains multiple co-regulated genes and enhancers in close proximity to one another. The unique landscape at Nanog permits the study of ongoing questions including whether multiple enhancers function additively versus synergistically, determinants of gene specificity, and cell-to-cell variability in gene expression. Nanog encodes a transcription factor required to maintain ESC pluripotency. The Nanog locus is an ideal model to study enhancers because it contains multiple highly potent super-enhancers within a small region. Nanog and three super-enhancers are in close physical proximity but only two SEs are required for Nanog expression. (shrink)

The terms “ideal theory” and “nonideal theory” are used in contemporary Anglophone political philosophy to identify alternative methodological approaches for justifying normative claims. Each term is used in multiple ways. In this article Alison M. Jaggar disentangles several versions of ideal and nonideal theory with a view to determining which elements may be helpful in designing models of real-world justice that are contextually relevant, morally plausible, and practically feasible.

The claim defended in the paper is that the mechanistic account of explanation can easily embrace idealization in big-scale brain simulations, and that only causally relevant detail should be present in explanatory models. The claim is illustrated with two methodologically different models: Blue Brain, used for particular simulations of the cortical column in hybrid models, and Eliasmith’s SPAUN model that is both biologically realistic and able to explain eight different tasks. By drawing on the mechanistic theory of computational (...) explanation, I argue that large-scale simulations require that the explanandum phenomenon is identified; otherwise, the explanatory value of such explanations is difficult to establish, and testing the model empirically by comparing its behavior with the explanandum remains practically impossible. The completeness of the explanation, and hence of the explanatory value of the explanatory model, is to be assessed vis-à-vis the explanandum phenomenon, which is not to be conflated with raw observational data and may be idealized. I argue that idealizations, which include building models of a single phenomenon displayed by multi-functional mechanisms, lumping together multiple factors in a single causal variable, simplifying the causal structure of the mechanisms, and multi-model integration, are indispensable for complex systems such as brains; otherwise, the model may be as complex as the explanandum phenomenon, which would make it prone to so-called Bonini paradox. I conclude by enumerating dimensions of empirical validation of explanatory models according to new mechanism, which are given in a form of a “checklist” for a modeler. (shrink)

This article reviews the recent literature on idealization, specifically idealization in the course of scientific modeling. We argue that idealization is not a unified concept and that there are three different types of idealization: Galilean, minimalist, and multiple models, each with its own justification. We explore the extent to which idealization is a permanent feature of scientific representation and discuss its implications for debates about scientific realism.

In recent decades, attempts to explain autism have been frustrated by the heterogeneous nature of its behavioral symptoms and the underlying genetic, neural, and cognitive mechanisms that produce them. This has led some to propose eliminating the category altogether. The eliminativist inference relies on a conception of psychiatric categories as kinds defined by their underlying mechanistic structure. I review the evidence for eliminativism and propose an alternative model of the family of autisms. On this account, autism is a network (...) category defined by a set of idealized exemplars linked by multiple levels of theoretically significant properties. I argue that this network model better captures the empirical phenomena, the historical growth of the category, and the ways the category has been shaped by social norms and interests. Finally, I defend a realist interpretation of network categories against the challenge from eliminativists. (shrink)

Recent philosophy of science has witnessed a shift in focus, in that significantly more consideration is given to how scientists employ models. Attending to the role of models in scientific practice leads to new questions about the representational roles of models, the purpose of idealizations, why multiple models are used for the same phenomenon, and many more besides. In this paper, I suggest that these themes resonate with central topics in feminist epistemology, in particular prominent versions of feminist empiricism, (...) and that model-based science and feminist epistemology each has crucial resources to offer the other's project. (shrink)

Continuous environmental concerns regarding construction industry have been driving general constructors of mega infrastructure projects to incorporate green contractors. Although conventional multiple attributes decision-making methodologies have provided feasible ways to select contractor, high complexity in scenarios of megaprojects still challenges existing MADM methods in concurrently accommodating three key issues of decision hesitancy, attributes interdependency, and group attitudinal character. To elicit decision-makers’ hesitant fuzzy assessments more objectively and comprehensively, we define an expression tool called interval-valued dual hesitant fuzzy uncertain unbalanced (...) linguistic set and develop aggregation operators through its operations. To exploit attributes interdependency, we establish a synthesized attributes’ weighting model to fuse an attributes interdependency-based weighting vector and an argument-dependent weighting vector, which are, respectively, derived through Decision-Making and Trial Evaluation Laboratory technique and maximizing deviation method. To effectively utilize decision-makers’ group attitudinal characters, we also develop a TOPSIS-based method to rationally transform group ideal attitudes into order-inducing vectors. On the strength of the above methods, an integrated MADM approach is then constructed. Finally, illustrative case study and experiments are conducted to validate our approach. (shrink)

This contribution sheds light on the role of infinite idealization in structural analysis, by exploring how infinite elements and finite element methods are combined in civil engineering models. This combination, I claim, should be read in terms of a ‘complementarity function’ through which the representational ideal of completeness is reached in engineering model-building. Taking a cue from Weisberg’s definition of multiple-model idealization, I highlight how infinite idealizations are primarily meant to contribute to the prediction of (...) structural behavior in Multiphysics approaches. (shrink)

This contribution sheds light on the role of infinite idealization in structural analysis, by exploring how infinite elements and finite element methods are combined in civil engineering models. This combination, I claim, should be read in terms of a ‘complementarity function’ through which the representational ideal of completeness is reached in engineering model-building. Taking a cue from Weisberg’s definition of multiple-model idealization, I highlight how infinite idealizations are primarily meant to contribute to the prediction of (...) structural behavior in Multiphysics approaches. (shrink)

Contemporary philosophers of science argue that models are a major vehicle of scientific knowledge. This applies to highly theoretical inquiry as well as to experimental or otherwise observational research, in both the natural and the social sciences. Making this claim is not yet very illuminating, given that there is a large variety of different kinds of model, and a number of ways in which they function in the service of science. The ambiguity of the term ‘model’ and the (...) multiplicity of kinds of model are illustrated by Pierre Duhem’s famous comparison of the mind of a continental physicist to that of an Englishman: the former strives for ‘theories’ that are formulated in ‘the clear and precise language of geometry and algebra’ and consist of abstract and idealized notions and formulae, while the latter insists on having mechanical ‘models’ that satisfy ‘his need to imagine concrete, material, visible, and tangible things’ that are familiar to ordinary experience. While the French or German physicist deals with a formalized theory in his account of electrostasis, the English account is in terms of ‘strings which move around pulleys, which roll around drums, which go through pearl beads, which carry weights; and tubes which pump water while others swell and contract; toothed wheels which are geared to one another and engage hooks. We thought we were entering the tranquil and neatly ordered abode of reason, but we find ourselves in a factory’ (Duhem 1954, pp. 70–1). Models in this sense—iconic models —employ analogies to visualize the mechanisms depicted, while formalized theories supposedly lack this property. On the other hand, it is nowadays customary to use the term ‘model’ also for such formal systems of equations, conspicuously so in the social sciences—and, much of the time, such formal systems are used for representing causal mechanisms. In relation to such a formal system, ‘model’ is also used for its various interpretations, or just for the interpretation that makes it true. The model muddle needs to be sorted out. (shrink)

To improve the accuracy of the multiple channel integration quality evaluation, this paper proposes a comprehensive evaluation method using the nonlinear autoregressive exogenous model and constructs an index system. First, the entropy method is used to determine the objective weight of each indicator. The indicators used in this paper are process consistency, information consistency, emotional value, procedural value, service structure transparency, online result value, business relevance, and online purchase intention. Second, an improved gray relational analysis algorithm is used (...) to obtain the comprehensive gray relational degree between the above eight indicators’ standard samples and the tested samples. Then, this study uses the dataset preprocessed with the GRA algorithm for training the NARX model. Then, this study uses the trained model to evaluate the quality of multiple channel integration comprehensively. Next, this study uses standardized methods to quantify the evaluation results to provide new ideas and theoretical guidance for teaching traditional retailers to use the advantages of multiple channels to expand their online business. This paper uses 50,000 consecutive samples of a product for 3 months as a dataset in the experimental part. Through the GRA method and the NARX model, the comprehensive gray relational degree between the test sample and the ideal sample is obtained, and the results are quantified. Experiments show that, compared with the GRA method, this paper’s method has a higher degree of fit between the output value and the target value. (shrink)

Autonomy is a key characteristic of attachment relations that varies as a function of attachment orientations and is also a key personality characteristic of leadership perceptions. In the presented research, we reasoned that the relationship between attachment and autonomy-related preference for specific leaders and leadership behavior would be a function of individuals’ insecure attachment strategies. We tested our hypotheses in two studies. Study 1 used Multiple Indicators Multiple Causes modeling to test expectations based on a cross-sectional design, while (...) Study 2 utilized a vignette-based experimental design. We find that anxious individuals attributed less positive evaluations to an autonomous leadership style, while avoidant persons attributed higher leader competence to an autonomous leader description. Compared to less anxious participants, highly anxious participants attributed lower competence to the autonomous leader description. By examining how individual differences in attachment orientations can indirectly influence the ideal leader categorization process, the present set of studies lends support to the importance of attachment orientations and related working models in leader perception and contribute to the literature on leader-follower fit. Using a survey and experimental approach, we examine how followers’ attachment schemas can shape the leader influence process, specifically concerning a preference for an autonomous leadership style. (shrink)

This article starts with a brief overview of well-known criticisms of modern democracy in order to suggest a different approach: reflecting on the principles of Western democracy in the basic horizon of the problematic of the self and wondering if the ‘multiple’ self should not be conceived as the single subjective correlate that is adequate to democratic pluralism and also as the only chance of curing ourselves of ‘fundamentalism’. I try to highlight the Derridian radical view of democracy as (...) “always still to come”, placing it in the generic framework of ‘postmodern ethics’. I distinguish between two trends in postmodern ethics and also between three kinds or models of relationship to the self, in order to argue that the ‘multiple’ self, that is the self conceived as an irreducible multiplicity of voices, positions, tendencies, vocabularies, and characters, might claim the status of an ideal that needs to be fully embraced and understood in all its consequences – some of them profoundly disturbing for the old ‘images of the self’ consecrated by our tradition, on the one side Greek and Latin, on the other, Judeo-Christian –, if we want that democracy actually become a social and political reality. I conclude this paper with a plea for resistance to biopolitical normalization. (shrink)

The issue of advocacy has dominated discussion of the ethical dilemmas facing nurses. However, despite this, nurses seem to be no further towards a solution of how they can be effective advocates for patients without compromising their working identity or facing conflicts of loyalty. This article considers some of the problems around advocacy and, by the use of critical incidents written by nurses involved in a diploma module, attempts to highlight where the problem could lie. A communications model is (...) outlined, using a theoretical framework taken from the work of Jürgen Habermas, and applied to nursing practice. Finally, two examples are given from the research, which illustrate how the model could be used, highlighting the problems and pitfalls that still have to be overcome. The conclusion is a positive one, in that it suggests that advocacy is possible if nurses re-examine their practice in the light of the model proposed.Copyright of Nursing Ethics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (shrink)

Over the years of the printing of the Utopia by Thomas More, the paradigm of the bene ordinata res publica takes shape in Italian culture. It is a model both political and urbanistic, which is inspired by the neo-Platonic revival of the Fifteenth and Sixteenth century and concretized by the «new style» of Renaissance architects. The rationalization of the civitas, evident from the geometric definition of the urban plans, introduces a principle of order and measuring to which it is (...) assigned the task to re-form and harmonize the multiple instances of a real State – naturaliter unstable, corrupt, conflictual – within the form of an achievable eutopia. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Cartography: The Ideal and Its History by Matthew H. EdneyAlex ZukasCartography: The Ideal and Its History BY MATTHEW H. EDNEY Chicago: University of Chicago Press, 2019As Matthew Edney notes in the introduction, “This book is the product of my entire career as a map historian (so far);” it does, indeed, represent the culmination of more than thirty years of his research in the history of maps and mapping (...) that began in graduate school (ix). From the outset of his career, Edney has followed and advocated a postmodern or poststructural approach to map studies. This book follows that theoretical approach, which is both a strength and a weakness. Adopting another theoretical approach would have enabled his desired critique of cartography without being self-refuting, as his poststructuralism turns out to be when he makes a positive case for studying mapping processes rather than cartography and “maps.”1Edney is a major and respected figure in the history of mapping. Along with Brian Harley, Denis Wood, Martin Dodge, Rob Kitchin, Chris Perkins, and John Pickles, he has helped reshape the field over the past thirty-plus years in the direction of “critical cartography” or “critical map studies.” He has directed the History of Cartography Project at the University of Wisconsin-Madison since 2005, and co-edited the fourth volume in that series, Cartography in the European Enlightenment (2019). He notes that co-editing that volume tested and tempered many of his ideas (ix). Since 2007 he has held the Osher Chair in the History of Cartography at the University of Southern Maine. [End Page 111]A provocative and complex polemic, the beautifully illustrated book is, as indicated by its title, divided into two main thematic sections: a philosophical deconstruction of the cartographic ideal and a retelling of the ideal’s historical development. It contains four content chapters with a brief introduction and conclusion. While the second historical half has much to recommend it (chapters 4 and 5), the first poststructurally-informed philosophical part (chapters 2 and 3) critiques propositions that he deploys to make his historical narrative work. Edney’s central argument in the book is that “cartography” is a prescriptive model that “exists only as an idealization produced by modern culture and that it cannot provide a valid conception of mapping in the past, present, or future. Cartography is not an endeavor common to all societies and cultures. Rather, it is very much a creation of the modern West and is permeated by many of the myths that Westerners tell themselves about their rationality and superiority” in which “the ideal of cartography is the entire belief system, while cartography is the fiction generated by the ideal” (8, 1). We will see that, in less sweeping form, there is value to these claims historically. However, key aspects of Edney’s philosophical position undermine his historical argument by undercutting its foundations. In fact, the polemics come mainly in the philosophical section whose tone is prescriptive, reproving, insistent, and absolute, which is ironic given his arguments against universality. His tone detracts from the value of the first section of the book and makes it a challenging read. Edney divides his book into philosophical and historical halves because he believes that “A true critique of cartography requires, first and foremost, the delineation of the ideal’s multiple tenets and all of their flaws” (26). However, he makes no specific argument on behalf of this sweeping, absolute, and universal premise, especially regarding its claims that it is a “true critique” and other critiques are “misguided and misleading” (26). If the book is supposed to provide the evidence for his premise and these claims, then the argument is circular.The introduction (chapter 1) lays out the ideal and the book’s structure. Chapter 2 examines sociocultural critiques of the ideal that emerged over the past thirty-five years and Edney’s recommended “processual approach” to mapping, which he claims “provides an intellectual framework to pursue map studies without running into the ideal’s flaws [End Page 112] and preconceptions” because “it encourages scholars to address issues about why and how maps are produced and consumed... in an explicit and empirically founded manner... (shrink)

How does God think? How, ideally, does a human mind function? Must a gap remain between these two paradigms of rationality? Such questions exercised the greatest ancient philosophers, including those featured in this book: Socrates, Plato, Aristotle, the Stoics and Plotinus. This volume encompasses a series of studies by leading scholars, revisiting key moments of ancient philosophy and highlighting the theme of human and divine rationality in both moral and cognitive psychology. It is a tribute to Professor A. A. Long, (...) and reflects multiple themes of his own work. (shrink)

Many factors complicate the education of urban students. Among them have been issues related to population density; racial, ethnic, cultural, and linguistic diversity; poverty; racism ; and funding levels. Although urban educators have been addressing these issues for decades, placing them under the umbrella of "urban education" and treating them as a specific area of practice and inquiry is relatively recent. Despite the wide adoption of the term a consensus about its meaning exists at only the broadest of levels. In (...) short, urban education remains an ill-defined concept. This comprehensive volume addresses this definitional challenge and provides a 3-part conceptual model in which the achievement of equity for all -- regardless of race, gender, or ethnicity – is an ideal that is central to urban education. The model also posits that effective urban education requires attention to the three central issues that confronts all education systems _accountability_ of individuals and the institutions in which they work, _leadership_, which occurs in multiple ways and at multiple levels, and _learning_, which is the raison d'être of education. Just as a three-legged stool would fall if any one leg were weak or missing, each of these areas is essential to effective urban education and affects the others. (shrink)

Scientific pluralism, a normative endorsement of the plurality or multiplicity of research approaches in science, has recently been advocated by several philosophers (e.g., Kellert et al. 2006, Kitcher 2001, Longino 2013, Mitchell 2009, and Chang 2010). Comparing these accounts of scientific pluralism, one will encounter quite some variation. We want to clarify the different interpretations of scientific pluralism by showing how they incarnate different models of democracy, stipulating the desired interaction among the plurality of research approaches in different ways. Furthermore, (...) the example of scientific pluralism is used to advocate the application of democratic theory to philosophy of science problems in general. Drawing on the parallels between models of science and models of democracy, we can articulate how the plurality of research approaches in science should interact within a democratic framework as well as how to cultivate multiple research approaches in the epistemically most productive way possible. This will not only improve our understanding of scientific plurality, but it can also help us stipulating how different research approaches should interact to constitute the most objective account possible or how the ideal of scientific consensus has to be understood. Ultimately, developing democratic models of science bears on the question of how deeply science and democracy are entwined. (shrink)

Cancer is a paradigmatic case of a complex causal process; causes of cancer operate at a variety of temporal and spatial scales, and the respects in which these causes act and interact are diverse. There are, for instance, temporal order effects, organizational effects, structural effects, and dynamic relationships between causes operating at different temporal and spatial scales. Because of this complexity, models of cancer initiation and progression often involve deliberate choices to focus on one time scale, one causal pathway, or (...) one aspect of cancer’s dynamics. As in most of biology, modeling cancer involves simplification and idealization. At the same time, theoretical perspectives inform the construction of these models. Such perspectives might involve viewing cancer ‘as’ a genetic disease, metabolic disease, stem cell disease, an infectious disease, or a disease of tissue disorganization. This paper will argue that purportedly competing theoretical views of cancer are not at odds, but can be viewed as mutually informative. Models are most often developed in the service of asking very specific questions, and this requires limiting our view of the phenomena to a specific temporal or spatial scale, a particular cause, or a particular outcome, dynamic, or pattern. Thus, while some models may seem at odds, often they are simply concerned with different questions, or, they are complementary and mutually informative. I hope to bring this case to bear on debates among philosophers of science over perspectivism and realism, as well pluralism about the aims and scope of scientific theory. (shrink)

False information is always produced after the outbreak of major emergencies. Taking this into consideration, this paper discusses the behavior of multiple parties in relation to false information dissemination after major emergencies. First, a game model is constructed, using relevant knowledge of evolutionary game theory, between three parties: regulatory institutions, opinion leaders, and ordinary Internet users. Second, the model equations are solved, and the evolutionary stability strategies of each game party under different circumstances are analyzed. Third, a (...) numerical simulation is applied to the evolutionary trends under different strategy combinations with varying parameters. The results show that the probability of each game party making ideal decisions is positively correlated with the degree of punishment imposed by regulatory institutions on opinion leaders who release false information, the reward provided by regulatory institutions on opinion leaders who release positive information, the degree of participation and satisfaction gained by Internet users in adopting positive information, the richness of authentic content released by opinion leaders, and the psychological identification of Internet users with opinion leaders. Meanwhile, the probability of each game party making ideal decisions is negatively correlated with investigation and evidence collection costs borne by opinion leaders who release positive information, the additional income for opinion leaders who have false information adopted by Internet users, the costs of Internet users’ time and energy when they adopt information released by opinion leaders, and the costs of independently judging the accuracy of information by Internet users. (shrink)

This article offers a characterization of what I call multiple-models juxtaposition, a strategy for managing trade-offs among modeling desiderata. MMJ displays models of distinct phenomena to...

Critical types of infrastructure are provided by the state to maintain the people’s livelihood, ensure economic development, and systematic government operations. Given the development of ever more complicated critical infrastructure systems, increasing importance is being attached to the protection of the components of this infrastructure to reduce the risk of failure. Power facilities are one of the most important kinds of critical infrastructure. Developing an effective risk detection system to identify potential failure modes of power supply equipment is crucial. This (...) study seeks to improve upon prior approaches for risk assessment by proposing a hybrid risk-assessment model using the concepts of failure mode and effect analysis and multiple-criteria decision-making. The proposed model includes a cost-based factor for decision-makers. The subjectivity and uncertainty in FM assessment are adjusted through the rough number method. The original risk priority number can be expanded by including the entropy weights in the risk index. Furthermore, to rank the risk priorities in a rational manner, a modified technique for order preference by similarity to ideal solution is adopted. The applicability and effectiveness of the proposed method were demonstrated by considering an example of a turbine steam engine in a nuclear power plant. (shrink)

This paper furthers the understanding of Nietzsche's project of increasing the prevalence of higher individuals. I do this by opposing the dominant tendency in Nietzschean scholarship of constructing a single ideal-type. I argue that Nietzsche actually describes multiple higher types, with incommensurable physiological and psychological characteristics, and that attempts to collapse these into one type obscure the nuance and richness of his thought. Furthermore, I claim that higher types are not ahistorical ideals; instead, their emergence relates closely to existing (...) psychological and physiological conditions in society. The artistic-genius type, for example, is characterised by his sensitivity to stimuli and plays a vital role in injecting creativity into culturally uniform societies. He is, however, a counter-productive role model for diverse modern societies, characterised by an abundance of stimuli and widespread reactivity. In response to such conditions, Nietzsche extols the virtue of a peculiarly anti-modern type, who cultivates independence from stimuli. Interpreting higher types as multiple and historically situated is vital to carrying out the normative aspect of Nietzsche's philosophy. This role is performed by the philosophical-physician, who surveys the physiological and psychological conditions of his own age and attempts to exploit these conditions to produce future higher individuals. (shrink)

This paper discusses the relevance of models for cognitive science that integrate mechanistic and computational aspects. Its main hypothesis is that a model of a cognitive system is satisfactory and explanatory to the extent that it bridges phenomena at multiple mechanistic levels, such that at least several of these mechanistic levels are shown to implement computational processes. The relevant parts of the computation must be mapped onto distinguishable entities and activities of the mechanism. The ideal is contrasted with (...) two other accounts of modeling in cognitive science. The first has been presented by David Marr in combination with a distinction of “levels of computation”. The second builds on a hierarchy of “mechanistic levels” in the sense of Carl Craver. It is argued that neither of the two accounts secures satisfactory explanations of cognitive systems. The mechanistic-computational ideal can be thought of as resulting from a fusion of Marr’s and Craver’s ideals. It is defended as adequate and plausible in light of scientific practice, and certain metaphysical background assumptions are discussed. (shrink)

This paper furthers the understanding of Nietzsche's project of increasing the prevalence of higher individuals. I do this by opposing the dominant tendency in Nietzschean scholarship of constructing a single ideal-type. I argue that Nietzsche actually describes multiple higher types, with incommensurable physiological and psychological characteristics, and that attempts to collapse these into one type obscure the nuance and richness of his thought. Furthermore, I claim that higher types are not ahistorical ideals; instead, their emergence relates closely to existing (...) psychological and physiological conditions in society. The artistic-genius type, for example, is characterised by his sensitivity to stimuli and plays a vital role in injecting creativity into culturally uniform societies. He is, however, a counter-productive role model for diverse modern societies, characterised by an abundance of stimuli and widespread reactivity. In response to such conditions, Nietzsche extols the virtue of a peculiarly anti-modern type, who cultivates independence from stimuli. Interpreting higher types as multiple and historically situated is vital to carrying out the normative aspect of Nietzsche's philosophy. This role is performed by the philosophical-physician, who surveys the physiological and psychological conditions of his own age and attempts to exploit these conditions to produce future higher individuals. (shrink)

We develop an account of how mutually inconsistent models of the same target system can provide coherent information about the system. Our account makes use of ideas from the debate surrounding rob...

Despite the lack of invariance problem (the many‐to‐many mapping between acoustics and percepts), human listeners experience phonetic constancy and typically perceive what a speaker intends. Most models of human speech recognition (HSR) have side‐stepped this problem, working with abstract, idealized inputs and deferring the challenge of working with real speech. In contrast, carefully engineered deep learning networks allow robust, real‐world automatic speech recognition (ASR). However, the complexities of deep learning architectures and training regimens make it difficult to use them to (...) provide direct insights into mechanisms that may support HSR. In this brief article, we report preliminary results from a two‐layer network that borrows one element from ASR, long short‐term memory nodes, which provide dynamic memory for a range of temporal spans. This allows the model to learn to map real speech from multiple talkers to semantic targets with high accuracy, with human‐like timecourse of lexical access and phonological competition. Internal representations emerge that resemble phonetically organized responses in human superior temporal gyrus, suggesting that the model develops a distributed phonological code despite no explicit training on phonetic or phonemic targets. The ability to work with real speech is a major advance for cognitive models of HSR. (shrink)

Mauricio Suárez and Agnes Bolinska apply the tools of communication theory to scientific modeling in order to characterize the informational content of a scientific model. They argue that when represented as a communication channel, a model source conveys information about its target, and that such representations are therefore appropriate whenever modeling is employed for informational gain. They then extract two consequences. First, the introduction of idealizations is akin in informational terms to the introduction of noise in a signal; (...) for in an idealization we introduce ‘extraneous’ elements into the model that have no correlate in the target. Second, abstraction in a model is informationally equivalent to equivocation in the signal; for in an abstraction we “neglect” in the model certain features that obtain in the target. They conclude that it becomes possible in principle to quantify idealization and abstraction in informative models, although precise absolute quantification will be difficult to achieve in practice. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Response to Estelle R. Jorgensen, “Four Philosophical Models of the Relationship Between Theory and Practice”W. Ann StokesEstelle Jorgensen has written a most interesting paper contrasting four different concepts of the relationship between theory and practice, and pointing out the advantages and disadvantages of each. Each approach introduces insights that the others have missed, but is not sufficient in itself to explain all the relationships between theory and practice. In (...) response to the concept of "dichotomy," I am also sympathetic to the attempt to distinguish practice and theory because it identifies two important constituents of experience, and it provides a fruitful way of investigating the relationship between the two concepts. However, I believe that a concept of dichotomy may put the two categoriees in too distant a relationship with each other. This distance may prevent us from recognizing the "interconnections and cross-fertilizations" that are often possible between them.The idea of "polarity" opens up the possibility of focusing on the ground [End Page 102] between the two concepts. It also provides a framework for allowing "practice to bubble up into theory," and "theory to bubble up into practice." Given that a theory may bring about a range of different practices and that practices may be based upon a range of differing theories, one needs to be able to move easily between the two worlds. Imagination, intuition, and rational thinking all contribute to our understanding of the relationship between the two concepts. In this situation of polarity one should not expect to find "a theory perfectly translated into a particular practice, or a practice drawing entirely and fully on one particular theory."I am also sympathetic to the view that "theory without practice is mentalism," and that "practice without theory is activism or instrumentalism bare of guiding principles," but like Jorgensen I find the concept of fusion the least helpful of the four concepts. Given the fact that very rarely (if ever) is theory perfectly exemplified in practice, or practice based solely upon one specific theory, the concept of fusion in many instances is too absolute. I am open to the suggestion that moral principles as well as aesthetic ones should guide the practice of music education despite the difficulties that a multiplicity of perspectives opens up. I also agree that democratic ideals can offer us one way of guiding the decisions made in the classroom and can offer a rallying point for persons coming from different ethnic, religious, political, and cultural backgrounds.The dialectical approach opens up a way to negotiate among differences of opinion and beliefs that influence practice. It assumes that there is no one perfect perspective on the relationship between theory and practice. The dialectical approach provides (1)a framework to investigate the theories and practices of which practitioners are aware, (2)opportunities to examine how practitioners adjudicate them, and (3)explanations of how and why they decide to act "in their particular lived situations." In contrast to the ontological approach, I like Jorgensen's epistemological approach to the investigation of theory and practice. It offers another perspective in addition to the influence that ontological theories can have in guiding music education practice.My view of the ideal relationship between theory and practice is one that acknowledges the differences between the two concepts, but allows for a variety of relationships between the two. It is one that recognizes that theory should influence practice and that practice should influence theory in an ongoing and continuous reciprocal exchange. It entails being sensitive to a variety of theories and particular practices, and being skilled at being able to pick which particular theory or theories best explains the practice observed.In addition to the concepts of dichotomy, polarity, fusion, and dialectic, another possible concept of the relationship between theory and practice might be based upon Michael Lewis, Margaret Sullivan, and Linda Michalson's view [End Page 103] of the "cognitive-emotional fugue."1 This perspective has the advantage of being very flexible. The authors describe emotion and cognition as being neither separate nor independent processes. "Rather both are elements of a continuous, inseparable stream of behavior like the parts of a fugue in which the theme is often lost... (shrink)

The introduction of multiple intelligence theory into sports professional football teaching is a requirement of educational innovation, which helps to expand and play the multiple functions of football, and can effectively improve the comprehensive quality of football professional science. Under the perspective of multiple intelligence theory, college sports professional football teaching will focus on the all-round development of students, actively cultivate students’ multiple intelligence, and reflect the democratization, individualization, and diversification of teaching in the process of (...) educational concept innovation. This article explains the origin and characteristics of the particle swarm optimization algorithm and discusses the application status of the PSO algorithm in detail. We introduced the standard PSO algorithm, including mathematical forms, iteration steps, and flowcharts. In addition, it also specifically describes the proposed new PSO improved algorithm, including the food chain strategy and reproduction strategy, as well as the implementation of the algorithm. Through analysis, it is concluded that the implementation and implementation of relevant systems is the guarantee for the sustained and sound development of campus football. The amount of football lessons is insufficient, and the classroom teaching effect is not ideal. Physical education teachers are acceptable, but the football professional knowledge training of physical education teachers needs to be strengthened. The selection and setting of the teaching content of football lessons lack systematic, scientific, and adaptable, and the teaching methods and teaching model concepts are backward. In the process of football teaching, teachers ignored the evaluation and assessment of students’ nonphysical and nonintellectual factors, and campus football activities did not achieve the expected goals. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Response to Estelle R. Jorgensen, “Four Philosophical Models of the Relationship Between Theory and Practice”W. Ann StokesEstelle Jorgensen has written a most interesting paper contrasting four different concepts of the relationship between theory and practice, and pointing out the advantages and disadvantages of each. Each approach introduces insights that the others have missed, but is not sufficient in itself to explain all the relationships between theory and practice. In (...) response to the concept of "dichotomy," I am also sympathetic to the attempt to distinguish practice and theory because it identifies two important constituents of experience, and it provides a fruitful way of investigating the relationship between the two concepts. However, I believe that a concept of dichotomy may put the two categoriees in too distant a relationship with each other. This distance may prevent us from recognizing the "interconnections and cross-fertilizations" that are often possible between them.The idea of "polarity" opens up the possibility of focusing on the ground [End Page 102] between the two concepts. It also provides a framework for allowing "practice to bubble up into theory," and "theory to bubble up into practice." Given that a theory may bring about a range of different practices and that practices may be based upon a range of differing theories, one needs to be able to move easily between the two worlds. Imagination, intuition, and rational thinking all contribute to our understanding of the relationship between the two concepts. In this situation of polarity one should not expect to find "a theory perfectly translated into a particular practice, or a practice drawing entirely and fully on one particular theory."I am also sympathetic to the view that "theory without practice is mentalism," and that "practice without theory is activism or instrumentalism bare of guiding principles," but like Jorgensen I find the concept of fusion the least helpful of the four concepts. Given the fact that very rarely (if ever) is theory perfectly exemplified in practice, or practice based solely upon one specific theory, the concept of fusion in many instances is too absolute. I am open to the suggestion that moral principles as well as aesthetic ones should guide the practice of music education despite the difficulties that a multiplicity of perspectives opens up. I also agree that democratic ideals can offer us one way of guiding the decisions made in the classroom and can offer a rallying point for persons coming from different ethnic, religious, political, and cultural backgrounds.The dialectical approach opens up a way to negotiate among differences of opinion and beliefs that influence practice. It assumes that there is no one perfect perspective on the relationship between theory and practice. The dialectical approach provides (1)a framework to investigate the theories and practices of which practitioners are aware, (2)opportunities to examine how practitioners adjudicate them, and (3)explanations of how and why they decide to act "in their particular lived situations." In contrast to the ontological approach, I like Jorgensen's epistemological approach to the investigation of theory and practice. It offers another perspective in addition to the influence that ontological theories can have in guiding music education practice.My view of the ideal relationship between theory and practice is one that acknowledges the differences between the two concepts, but allows for a variety of relationships between the two. It is one that recognizes that theory should influence practice and that practice should influence theory in an ongoing and continuous reciprocal exchange. It entails being sensitive to a variety of theories and particular practices, and being skilled at being able to pick which particular theory or theories best explains the practice observed.In addition to the concepts of dichotomy, polarity, fusion, and dialectic, another possible concept of the relationship between theory and practice might be based upon Michael Lewis, Margaret Sullivan, and Linda Michalson's view [End Page 103] of the "cognitive-emotional fugue."1 This perspective has the advantage of being very flexible. The authors describe emotion and cognition as being neither separate nor independent processes. "Rather both are elements of a continuous, inseparable stream of behavior like the parts of a fugue in which the theme is often lost... (shrink)

Hardman and Hutchinson claim that ethics is ‘grounded in particular, everyday concerns’. According to them, an implication of this is that ethics courses for (future) clinicians should de-emphasise teaching the theories and principles of philosophical ethics and focus instead on pedagogical activities more closely related to everyday concerns, for example, exposure to real patient accounts. I respond that, even if ethics is an ‘everyday’ phenomenon, learning philosophical ethics may be of significant practical benefit to clinicians. I argue that the theories (...) of philosophical ethics can reasonably be interpreted as partial, simplified descriptions—or models—of moral phenomena, and that they can be effectively deployed in tandem by clinicians as complementary decision-making tools for help in navigating ethically complex situations in the clinic. (shrink)

The potential of the soil to hold plant nutrients is governed by the cation-exchange capacity of any soil. Estimating soil CEC aids in conventional soil management practices to replenish the soil solution that supports plant growth. In this study, a multiple model integration scheme supervised with a hybrid genetic algorithm-neural network was developed and employed to predict the accuracy of soil CEC in Tabriz plain, an arid region of Iran. The standalone models and extreme learning machine ) were (...) implemented for incorporation into the MM-GANN. In addition, it was tested to enhance the prediction accuracy of the standalone models. The soil parameters such as clay, silt, pH, carbonate calcium equivalent, and soil organic matter were used as model inputs to predict soil CEC. With the use of several evaluation criteria, the results showed that the MM-GANN model involving the predictions of ELM and ANN models calibrated by considering all the soil parameters as inputs provided superior soil CEC estimates with a Nash Sutcliffe Efficiency = 0.87, Root Mean Square Error = 2.885, Mean Absolute Error = 2.249, Mean Absolute Percentage Error = 12.072, and coefficient of determination = 0.884. The proposed MM-GANN model is a reliable intelligence-based approach for the assessment of soil quality parameters intended for sustainability and management prospects. (shrink)

The principal task of the book series Poznan Studies in the Philosophy of the Sciences and the Humanities is to promote those developments in philosophy that respect the tradition of great philosophical ideas, on the one hand, and the manner of philosophical thinking introduced by analytical philosophy, on the other. The aim is to contribute to practicing philosophy as deep as Marxism and as caring about justification as positivism.

Model evaluation for long term climate predictions must be done on quantities other than the actual prediction, and a comprehensive uncertainty quantification is impossible. An ad hoc alternative is provided by coordinated model intercomparisons which typically use a “one model one vote” approach. The problem with such an approach is that it treats all models as independent and equally plausible. Reweighting all models of the ensemble for performance and dependence seems like an obvious way to improve on (...) model democracy, yet there are open questions on what constitutes a “good” model, how to define dependency, how to interpret robustness, and how to incorporate background knowledge. Under¬standing those issues has the potential to increase confidence in model predictions in modeling efforts outside of climate science where similar challenges exist. (shrink)

Model evaluation for long-term climate predictions must be done on quantities other than the actual prediction, and a comprehensive uncertainty quantificationUncertainty quantification is impossible. An ad hoc alternative is provided by coordinated model intercomparisonsModel intercomparisons which typically use a “one model one vote” approach. The problem with such an approach is that it treats all models as independent and equally plausible. Reweighting all models of the ensemble for performance and dependence seems like an obvious way to improve (...) on model democracy, yet there are open questions on what constitutes a “good” model, how to define dependency, how to interpret robustnessRobustness, and how to incorporate background knowledgeBackground knowledge. UnderstandingUnderstanding those issues have the potential to increase confidence in model predictions in modeling efforts outside of climate scienceClimate science where similar challenges exist. (shrink)