The standard approach to model how human beings understand natural languages is the symbolic, compositional approach according to which the meaning of a complex expression is a function of the meanings of its constituents. In other words, meaning plays a fundamental role in the model. In this work, because of the polysemous, flexible, dynamic, and contextual structure of natural languages, this approach is rejected. Instead, a connectionist model which eliminates the concept of meaning is proposed.

Toy models are highly idealized and extremely simple models. Although they are omnipresent across scientific disciplines, toy models are a surprisingly under-appreciated subject in the philosophy of science. The main philosophical puzzle regarding toy models is that it is an unsettled question what the epistemic goal of toy modeling is. One promising proposal for answering this question is the claim that the epistemic goal of toy models is to provide individual scientists with understanding. The aim (...) of this paper is to precisely articulate and to defend this claim. In particular, we will distinguish between autonomous and embedded toy models, and, then, argue that important examples of autonomous toy models are sometimes best interpreted to provide how-possibly understanding, while embedded toy models yield how-actually understanding, if certain conditions are satisfied. (shrink)

A number of writers have been attracted to the idea that some of the peculiarities of quantum theory might be manifestations of 'backward' or 'retro' causality, underlying the quantum description. This idea has been explored in the literature in two main ways: firstly in a variety of explicit models of quantum systems, and secondly at a conceptual level. This note introduces a third approach, intended to complement the other two. It describes a simple toy model, which, under a natural (...) interpretation, shows how retrocausality can emerge from simple global constraints. The model is also useful in permitting a clear distinction between the kind of retrocausality likely to be of interest in QM, and a different kind of reverse causality, with which it is liable to be confused. The model is proposed in the hope that future elaborations might throw light on the potential of retrocausality to account for quantum phenomena. (shrink)

Toy models are highly idealized and extremely simple models. Although they are omnipresent across scientific disciplines, toy models are a surprisingly under-appreciated subject in the philosophy of science. The main philosophical puzzle regarding toy models concerns what the epistemic goal of toy modelling is. One promising proposal for answering this question is the claim that the epistemic goal of toy models is to provide individual scientists with understanding. The aim of this article is to precisely (...) articulate and to defend this claim. In particular, we will distinguish between autonomous and embedded toy models, and then argue that important examples of autonomous toy models are sometimes best interpreted to provide how-possibly understanding, while embedded toy models yield how-actually understanding, if certain conditions are satisfied. _1_ Introduction _2_ Embedded and Autonomous Toy Models _2.1_ Embedded toy models _2.2_ Autonomous toy models _2.3_ Qualification _3_ A Theory of Understanding for Toy Models _3.1_ Preliminaries and requirements _3.2_ The refined simple view _4_ Two Kinds of Understanding with Toy Models _4.1_ Embedded toy models and how-actually understanding _4.2_ Against a how-actually interpretation of all autonomous toy models _4.3_ The how-possibly interpretation of some autonomous toy models _5_ Conclusion. (shrink)

The Marburg neo-Kantians argue that Hermann von Helmholtz's empiricist account of the a priori does not account for certain knowledge, since it is based on a psychological phenomenon, trust in the regularities of nature. They argue that Helmholtz's account raises the 'problem of validity' (Gueltigkeitsproblem): how to establish a warranted claim that observed regularities are based on actual relations. I reconstruct Heinrich Hertz's and Ludwig Wittgenstein's Bild theoretic answer to the problem of validity: that scientists and philosophers can depict the (...) necessary a priori constraints on states of affairs in a given system, and can establish whether these relations are actual relations in nature. The analysis of necessity within a system is a lasting contribution of the Bild theory. However, Hertz and Wittgenstein argue that the logical and mathematical sentences of a Bild are rules, tools for constructing relations, and the rules themselves are meaningless outside the theory. Carnap revises the argument for validity by attempting to give semantic rules for translation between frameworks. Russell and Quine object that pragmatics better accounts for the role of a priori reasoning in translating between frameworks. The conclusion of the tale, then, is a partial vindication of Helmholtz's original account. (shrink)

Two recent contributions have discussed, and disagreed, over whether so-called toy models that attempt to represent dispositions have the power to explain. In this paper, I argue that neither of these positions is completely correct. Toy models may accurately represent, satisfy the veridicality condition, yet fail to provide how-actually explanations. This is because some dispositions remain unmanifested. Instead, the models provide how-possibly explanations; they _possibly_ explain.

We pursue a model-oriented rather than axiomatic approach to the foundations of Quantum Mechanics, with the idea that new models can often suggest new axioms. This approach has often been fruitful in Logic and Theoretical Computer Science. Rather than seeking to construct a simplified toy model, we aim for a 'big toy model', in which both quantum and classical systems can be faithfully represented—as well as, possibly, more exotic kinds of systems. To this end, we show how Chu spaces (...) can be used to represent physical systems of various kinds. In particular, we show how quantum systems can be represented as Chu spaces over the unit interval in such a way that the Chu morphisms correspond exactly to the physically meaningful symmetries of the systems—the unitaries and antiunitaries. In this way we obtain a full and faithful functor from the groupoid of Hubert spaces and their symmetries to Chu spaces. We also consider whether it is possible to use a finite value set rather than the unit interval; we show that three values suffice, while the two standard possibilistic reductions to two values both fail to preserve fullness. (shrink)

According to one influential view, model-building in science is primarily a matter of simplifying theoretical descriptions of real-world target systems using abstraction and idealization. This view, however, does not adequately capture all types of models. Many contemporary models in the natural and social sciences – from physics to biology to economics – stand in a more tenuous relationship with real-world target systems and have a decidedly stipulative element, in that they create, by fiat, ‘model worlds’ that operate according (...) to some set of specified rules. While such models may be motivated by an interest in actual target phenomena, their validity is not – at least not primarily – to be judged by whether they constitute an empirically adequate representation of any particular empirical system. The present paper compares and contrasts three such types of models: minimal models, toy models, and exploratory models. All three share some characteristics and thus overlap in interesting ways, yet they also exhibit significant differences. It is argued that, in all three cases, modal considerations have an important role to play: by exploring the modal structure of theories and phenomena – that is, by probing possibilities in various ways – such models deepen our understanding and help us gain knowledge not only about what there is in the world, but also about what there could be. (shrink)

The toy model used by Spekkens (Phys. Rev. A 75, 032110, 2007) to argue in favor of an epistemic view of quantum mechanics is extended by generalizing his definition of pure states (i.e. states of maximal knowledge) and by associating measurements with all pure states. The new toy model does not allow signaling but, in contrast to the Spekkens model, does violate Bell-CHSH inequalities. Negative probabilities are found to arise naturally within the model, and can be used to explain the (...) Bell-CHSH inequality violations. (shrink)

Scientific models are frequently discussed in philosophy of science. A great deal of the discussion is centred on approximation, idealisation, and on how these models achieve their representational function. Despite the importance, distinct nature, and high presence of toy models, they have received little attention from philosophers. This paper hopes to remedy this situation. It aims to elevate the status of toy models: by distinguishing them from approximations and idealisations, by highlighting and elaborating on several ways (...) the Kac ring, a simple statistical mechanical model, is used as a toy model, and by explaining why toy models can be used to successfully carry out important work without performing a representational function. (shrink)

This article highlights and discusses the Ehrenfests’ use of toy models to explore irreversibility in statistical mechanics. In particular, we explore their urn and P–Q models and highlight that, while the former was primarily used to provide a simple counter-example to Zermelo’s objection to Boltzmann’s statistical mechanical underpinning of the Second Law of Thermodynamics, the latter was intended to highlight the role and importance of the Stoßzahlansatz as a cause of the tendency of systems to exhibit entropy increase. (...) We also explain the sense in which these models are toy models and why agents can use them, as the Ehrenfests’ did, to carry out this important work, despite the fact that they do not represent any real system. (shrink)

Drawing on ‘interpretational’ accounts of scientific representation, I argue that the use of so-called ‘toy models’ provides no particular philosophical puzzle. More specifically; I argue that once one gives up the idea that models are accurate representations of their targets only if they are appropriately similar, then simple and highly idealized models can be accurate in the same way that more complex models can be. Their differences turn on trading precision for generality, but, if they are (...) appropriately interpreted, toy models should nevertheless be considered accurate representations. A corollary of my discussion is a novel way of thinking about idealization more generally: idealized models may distort features of their targets, but they needn’t misrepresent them. (shrink)

Several philosophers of science claim that scientific toy models afford knowledge of possibility, but answers to the question of why toy models can be expected to competently play this role are scarce. The main line of reply is that toy models support possibility claims insofar as they are credible. I raise a challenge for this credibility-thesis, drawing on a familiar problem for imagination-based modal epistemologies, and argue that it remains unanswered in the current literature. The credibility-thesis has (...) a long way to go if it is to account for the epistemic merits of toy models. (shrink)

According to the Lockean thesis, a proposition is believed just in case it is highly probable. While this thesis enjoys strong intuitive support, it is known to conflict with seemingly plausible logical constraints on our beliefs. One way out of this conflict is to make probability 1 a requirement for belief, but most have rejected this option for entailing what they see as an untenable skepticism. Recently, two new solutions to the conflict have been proposed that are alleged to be (...) non-skeptical. We compare these proposals with each other and with the Lockean thesis, in particular with regard to the question of how much we gain by adopting any one of them instead of the probability 1 requirement, that is, of how likely it is that one believes more than the things one is fully certain of. (shrink)

Mathematics may seem unreasonably effective in the natural sciences, in particular in physics. In this essay, I argue that this judgment can be attributed, at least in part, to selection effects. In support of this central claim, I offer four elements. The first element is that we are creatures that evolved within this Universe, and that our pattern finding abilities are selected by this very environment. The second element is that our mathematics—although not fully constrained by the natural world—is strongly (...) inspired by our perception of it. Related to this, the third element finds fault with the usual assessment of the efficiency of mathematics: our focus on the rare successes leaves us blind to the ubiquitous failures. The fourth element is that the act of applying mathematics provides many more degrees of freedom than those internal to mathematics. This final element will be illustrated by the usage of ‘infinitesimals’ in the context of mathematics and that of physics. In 1960, Wigner wrote an article on this topic [4] and many later authors have echoed his assessment that the success of mathematics in physics is a mystery. At the end of this essay, I will revisit Wigner and three earlier replies that harmonize with my own view. I will also explore some of Einstein’s ideas that are connected to this. But first, I briefly expose my views of science and mathematics, since these form the canvass of my central claim. (shrink)

Mathematical models are a well established tool in most natural sciences. Although models have been neglected by the philosophy of science for a long time, their epistemological status as a link between theory and reality is now fairly well understood. However, regarding the epistemological status of mathematical models in the social sciences, there still exists a considerable unclarity. In my paper I argue that this results from specific challenges that mathematical models and especially computer simulations face (...) in the social sciences. The most important difference between the social sciences and the natural sciences with respect to modeling is that in the social sciences powerful and well confirmed background theories (like Newtonian mechanics, quantum mechanics or the theory of relativity in physics) do not exist in the social sciences. Therefore, an epistemology of models that is formed on the role model of physics may not be appropriate for the social sciences. I discuss the challenges that modeling faces in the social sciences and point out their epistemological consequences. The most important consequences are that greater emphasis must be placed on empirical validation than on theoretical validation and that the relevance of purely theoretical simulations is strongly limited. (shrink)

Chemical visualizations and models are special kinds of situated, inductive arguments. In this paper, I examine several historical case studies—an archive of images from museums, special collections, and popular magazines—as examples of emergent practices of physical modeling as theoretical play which became the basis for molecular biology and structural chemistry. Specifically, I trace a legacy of visualization tools that starts with Archibald Scott Cooper and Friedrich Kekulé in the late 1800s, crystallizes as material manipulatives in Kekulé’s student Jacobus Henricus (...) Van’t Hoff and his folded paper “toys,” is legitimized in the California lab of Linus Pauling, and is glorified in the popular imaginary with James Watson and Francis Crick’s model of DNA. My tracing then follows several threads into contemporary modeling practices. I ultimately argue that modeling play, originally outside of the boundary of deductive, positivist science, is now an accepted mode of inductive reasoning in these related chemical fields. (shrink)

This paper takes up Huw Price׳s challenge to develop a retrocausal toy model of the Bell-EPR experiment. I develop three such models which show that a consistent, local, hidden-variables interpretation of the EPR experiment is indeed possible, and which give a feel for the kind of retrocausation involved. The first of the models also makes clear a problematic feature of retrocausation: it seems that we cannot interpret the hidden elements of reality in a retrocausal model as possessing determinate (...) dispositions to affect the outcome of experiments. This is a feature which Price has embraced, but Gordon Belot has argued that this feature renders retrocausal interpretations “unsuitable for formal development”, and the lack of such determinate dispositions threatens to undermine the motivation for hidden-variables interpretations in the first place. But Price and Belot are both too quick in their assessment. I show that determinate dispositions are indeed consistent with retrocausation. What is more, I show that the ontological economy allowed by retrocausation holds out the promise of a classical understanding of spin and polarization. (shrink)

I argue that ML models used in science function as highly idealized toy models. If we treat ML models as a type of highly idealized toy model, then we can deploy standard representational and epistemic strategies from the toy model literature to explain why ML models can still provide epistemic success despite their lack of similarity to their targets.

Theoretical models are an important tool for many aspects of scientific activity. They are used, i.a., to structure data, to apply theories or even to construct new theories. But what exactly is a model? It turns out that there is no proper definition of the term "model" that covers all these aspects. Thus, I restrict myself here to evaluate the function of models in the research process while using "model" in the loose way physicists do. To this end, (...) I distinguish four kinds of models. These are (1) models as special theories, (2) models as a substitute for a theory, (3) toy models and (4) developmental models. I argue that models of the types (3) and (4) are considerably useful in the process of theory construction. This will be demonstrated in an extended case-study from High-Energy Physics. (shrink)

Models as Make-Believe offers a new approach to scientific modelling by looking to an unlikely source of inspiration: the dolls and toy trucks of children's games of make-believe.

While quantum theory cannot be described by a local hidden variable model, it is nevertheless possible to construct such models that exhibit features commonly associated with quantum mechanics. These models are also used to explore the question of \-ontic versus \-epistemic theories for quantum mechanics. Spekkens’ toy theory is one such model. It arises from classical probabilistic mechanics via a limit on the knowledge an observer may have about the state of a system. The toy theory for the (...) simplest possible underlying system closely resembles stabilizer quantum mechanics, a fragment of quantum theory which is efficiently classically simulable but also non-local. Further analysis of the similarities and differences between those two theories can thus yield new insights into what distinguishes quantum theory from classical theories, and \-ontic from \-epistemic theories. In this paper, we develop a graphical language for Spekkens’ toy theory. Graphical languages offer intuitive and rigorous formalisms for the analysis of quantum mechanics and similar theories. To compare quantum mechanics and a toy model, it is useful to have similar formalisms for both. We show that our language fully describes Spekkens’ toy theory and in particular, that it is complete: meaning any equality that can be derived using other formalisms can also be derived entirely graphically. Our language is inspired by a similar graphical language for quantum mechanics called the ZX-calculus. Thus Spekkens’ toy bit theory and stabilizer quantum mechanics can be analysed and compared using analogous graphical formalisms. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Out of an Old Toy ChestMarina Warner (bio)The Soul of the ToyIn Baudelaire’s essay “La Morale du joujou,” written in l853, he remembers how the toyshop owner Madame Pancoucke, all wrapped in velvet and furs, beckoned the young Charles to choose something from her “treasure store for children.” Looking back down the years, the poet still sees in his mind’s eye the magic room overflowing with toys from floor (...) to ceiling that this “Fée du joujou” (Toy Fairy) opened to him. Without a second thought, he picked out “the most beautiful, the most expensive, the most garish, the freshest and the most bizarre of the playthings.” But his horrified mother insisted he choose another, less extravagant present, and the little Baudelaire had to resign himself and relinquish his toy.The word joujou (not jouet, the usual word for toy) is almost a pet name with a nursery ring like a “teddy” or a “dolly”; its repetition hints at baby talk and hence at playing, as when a child exchanges endearments and questions with a toy in imaginary conversations and elaborate scenarios. The toy in so many children’s games becomes part of an ongoing story and in this way initiates the first invented narratives in the child’s life.That scene of seduction, pleasure, and frustration with Mme. Pancoucke and his own mother catches Baudelaire’s lasting affection and reasoned admiration for toys. He called them “cette statuaire singulière” (this singular statuary); he was first a poet and then an art critic rather than a novelist, and as a flâneur of the boulevards and the galleries, he adopted a language of aesthetics, treating toys as an unusual form of sculpture. He recalls in pleasurable detail the miniature worlds conjured by Victorian nursery games and child’s play—from tiny “diligences” or mail coaches to detailed model furniture. But above all he muses in wonder at children’s ability to play without props or models, creating narratives, dialogue, and dramas [End Page 3] through fantasy alone: “All children talk to their toys; toys become actors in the great drama of life, reduced by the camera obscura of their small brains. Children bear witness through their games to their great faculty of abstraction and their high imaginative power. They play without playthings.”1Significantly, Baudelaire goes on to make the connection to creativity in general: “[The child’s] facility to satisfy the imagination shows the spirituality of childhood in its artistic conceptions. The plaything is the first initiation of a child to art.” Nothing will ever attain again, he says, the same degree of liveliness, or, crucially, the same intensity of presence or belief. For Baudelaire, the realization of childish make-believe cannot be regained: “Isn’t all of life found there in miniature, and much more vivid in colour, cleaner and shinier than real life?”2Yet Baudelaire’s essay lingers on the frustration that dims these vivid, shiny colors, for children, he says, also want to see the soul of a toy. He describes how they will turn about their playthings and shake them, hurl them to the ground, and often break them in their bafflement and even rage at their stubborn refusal to awaken into life. His meditation hints that at the point when make-believe fails, the vitality of toys vanishes and produces a primal encounter with mortality: “But where is the soul? It’s here that bewilderment and sadness begin.”3 The beginning of imagining stories brings with it frustration that the story is not powerful enough—it is not the real thing. In a connected prose poem entitled “Le Joujou du pauvre,” published nine years later, Baudelaire pursues this thought, as he observes an exchange between a beautiful, pampered child inside the exclusive railed park of a chateau. He has “a splendid toy, as fresh as its master, varnished, gilded, clothed in a purple dress and covered with plumes and glitter.”4 But the rich child is not interested in his doll, for on the other side of the railings a ragged street urchin shows him, in a little cage which he shakes about, a living rat—”drawn... (shrink)

“Hard obscurantism” is a species of the genus scholarly obscurantism. A rough intensional definition of hard obscurantism is that models and procedures become ends in themselves, dissociated from their explanatory functions. In the present article, I exemplify and criticize hard obscurantism by examining the writings of eminent economists and political scientists.

According to cognitive psychologists, moral decision-making is a dual-process phenomenon involving two types of cognitive processes: explicit reasoning and implicit intuition. Moral development involves training and integrating both types of cognitive processes through a mix of instruction, practice, and reflection. Serious games are an ideal platform for this kind of moral training, as they provide safe spaces for exploring difficult moral problems and practicing the skills necessary to resolve them. In this article, we present Morality Play, a model for the (...) design of serious games for ethical expertise development based on the Integrative Ethical Education framework from moral psychology and the Lens of the Toy model for serious game design. (shrink)

Taking scientific practice as its starting point, this book charts the complex territory of models used in science. It examines what scientific models are and what their function is. Reliance on models is pervasive in science, and scientists often need to construct models in order to explain or predict anything of interest at all. The diversity of kinds of models one finds in science – ranging from toy models and scale models to theoretical (...) and mathematical models – has attracted attention not only from scientists, but also from philosophers, sociologists, and historians of science. This has given rise to a wide variety of case studies that look at the different uses to which models have been put in specific scientific contexts. By exploring current debates on the use and building of models via cutting-edge examples drawn from physics and biology, the book provides broad insight into the methodology of modelling in the natural sciences. It pairs specific arguments with introductory material relating to the ontology and the function of models, and provides some historical context to the debates as well as a sketch of general positions in the philosophy of scientific models in the process. (shrink)

This paper discusses critically what simulation models of the evolution of cooperation can possibly prove by examining Axelrod’s “Evolution of Cooperation” (1984) and the modeling tradition it has inspired. Hardly any of the many simulation models in this tradition have been applicable empirically. Axelrod’s role model suggested a research design that seemingly allowed to draw general conclusions from simulation models even if the mechanisms that drive the simulation could not be identified empirically. But this research design was (...) fundamentally flawed. At best such simulations can claim to prove logical possibilities, i.e. they prove that certain phenomena are possible as the consequence of the modeling assumptions built into the simulation, but not that they are possible or can be expected to occur in reality. I suggest several requirements under which proofs of logical possibilities can nevertheless be considered useful. Sadly, most Axelrod-style simulations do not meet these requirements. It would be better not to use this kind of simulations at all. (shrink)

In this essay, I argue that the work of Giorgio Agamben provides us with a theory of studious play which cuts across many of the categories that polarize educational thought. Rather than either ritualized testing or constructivist playfulness, Agamben provides a model of what he refers to as studious play—a practice which suspends the logic of both ritual and play. In order to explore this notion of studious play, I first articulate Agamben’s fleeting remarks on the topic with an important (...) problematic found in his early, literary work: transmission. If ritual transmits cultural traditions to ensure continuity with the past, and play as constructivist invention makes such transmission impossible, then studious play transmits transmissibility itself as a pure potentiality. Studious play accomplishes this peculiar educational task by suspending without destroying traditional things: laws, signs, and so on. I end the essay with a consideration of the ontological status of suspended things, arguing that they are transformed into toys via the action of study. Finally, I give a literary example of studious play found in Robert Walser’s novel Jakob von Gunten in which the school itself is imagined to be a kind of toy. (shrink)

This paper shows how the classical finite probability theory (with equiprobable outcomes) can be reinterpreted and recast as the quantum probability calculus of a pedagogical or toy model of quantum mechanics over sets (QM/sets). There have been several previous attempts to develop a quantum-like model with the base field of ℂ replaced by ℤ₂. Since there are no inner products on vector spaces over finite fields, the problem is to define the Dirac brackets and the probability calculus. The previous attempts (...) all required the brackets to take values in ℤ₂. But the usual QM brackets <ψ|ϕ> give the "overlap" between states ψ and ϕ, so for subsets S,T⊆U, the natural definition is <S|T>=|S∩T| (taking values in the natural numbers). This allows QM/sets to be developed with a full probability calculus that turns out to be a non-commutative extension of classical Laplace-Boole finite probability theory. The pedagogical model is illustrated by giving simple treatments of the indeterminacy principle, the double-slit experiment, Bell's Theorem, and identical particles in QM/Sets. A more technical appendix explains the mathematics behind carrying some vector space structures between QM over ℂ and QM/Sets over ℤ₂. (shrink)

This paper shows how the classical finite probability theory (with equiprobable outcomes) can be reinterpreted and recast as the quantum probability calculus of a pedagogical or toy model of quantum mechanics over sets (QM/sets). There have been several previous attempts to develop a quantum-like model with the base field of ℂ replaced by ℤ₂. Since there are no inner products on vector spaces over finite fields, the problem is to define the Dirac brackets and the probability calculus. The previous attempts (...) all required the brackets to take values in ℤ₂. But the usual QM brackets <ψ|ϕ> give the "overlap" between states ψ and ϕ, so for subsets S,T⊆U, the natural definition is <S|T>=|S∩T| (taking values in the natural numbers). This allows QM/sets to be developed with a full probability calculus that turns out to be a non-commutative extension of classical Laplace-Boole finite probability theory. The pedagogical model is illustrated by giving simple treatments of the indeterminacy principle, the double-slit experiment, Bell's Theorem, and identical particles in QM/Sets. A more technical appendix explains the mathematics behind carrying some vector space structures between QM over ℂ and QM/Sets over ℤ₂. (shrink)

Climate change presents us with a problem of intergenerational justice. While any costs associated with climate change mitigation measures will have to be borne by the world’s present generation, the main beneficiaries of mitigation measures will be future generations. This raises the question to what extent present generations have a responsibility to shoulder these costs. One influential approach for addressing this question is to appeal to neo-classical economic cost–benefit analyses and so-called economy-climate “integrated assessment models” to determine what course (...) of action a principle of intergenerational welfare maximization would require of us. I critically examine a range of problems for this approach. First, integrated assessment models face a problem of underdetermination and induction: They are very sensitive to a number of highly conjectural assumptions about economic responses to a temperature and climate regime, for which we have no empirical evidence. Second, they involve several simplifying assumptions which cannot be justified empirically. And third, some of the assumptions underlying the construction of economic models are intrinsically normative assumptions that reflect value judgments of the modeler. I conclude that, while integrated assessment models may play a useful role as “toy models,” their use as tools for policy optimization is highly problematic. (shrink)

Toys to overcome time, distance, and gravity -- To fly like a bird, not float like a cloud -- Finding a place in the world -- A new continent -- A new age-old problem to solve -- The physics of miniature worlds -- Models of wings and models of the world -- A world made of facts.

In contemporary artificial intelligence, the challenge is making intricate connectionist systems—comprising millions of parameters—more comprehensible, defensible, and rationally grounded. Two prevailing methodologies address this complexity. The inaugural approach amalgamates symbolic methodologies with connectionist paradigms, culminating in a hybrid system. This strategy systematizes extensive parameters within a limited framework of formal, symbolic rules. Conversely, the latter strategy remains staunchly connectionist, eschewing hybridity. Instead of internal transparency, it fabricates an external, transparent proxy system. This ancillary system’s mandate is elucidating the principal system’s (...) decisions, essentially approximating its outcomes. Leveraging natural language processing as our analytical lens, this paper elucidates both methodologies: the hybrid method is underscored by the compositional vector semantics, whereas the purely connectionist method evolves as a derivative of neural semantic parsers. This discourse extols the merits of the purely connectionist approach for its inherent flexibility and for a pivotal delineation: segregating the explanatory apparatus from the operational core, thereby rendering artificial intelligence systems reminiscent of human cognition. (shrink)

In this article, I argue that Donna Haraway's figure of the cyborg needs to be reassessed and extricated from the many misunderstandings that surround it. First, I suggest that we consider her cyborg as an ethical concept. I propose that her cyborg can be productively placed within the ethical framework developed by Luce Irigaray, especially in relationship to her concept of the “interval between.” Second, I consider how Haraway's “cyborg writing” can be understood as embodied ethical writing, that is, as (...) a contemporary écriture feminine. I believe that this cyborgian “writing the body” offers us a way of both creating and understanding texts that think through ethics, bodies, aesthetics, and politics together as part of a vital and relevant contemporary feminist ethics of embodiment. I employ the term “poethics” as a useful way to describe such a practice. (shrink)

This paper explores contract cheating from the perspectives of researchers at three post-secondary institutions in Alberta, Canada, describing their efforts to develop and advance awareness of, interventions against, and responses to contract cheating at their respective institutions. Contract cheating is when a third party produces or completes academic work for a student, and the student then presents the work as their own. The student might have personal connections to the third party, or the student might pay a fee and outsource (...) the academic work to the third party. All three institutions are experiencing an increase in the incidence of contract cheating, which is consistent with trends at colleges and universities across Canada and the world. Contract cheating is not a new phenomenon, but it is a growing one, due in part to students having access to thousands of online companies offering to help them with their academic work. This paper examines personal narratives from four researchers and identifies five key themes: types of contract cheating, students, awareness, evidence and policy implications, and educational development. (shrink)

This article presents results from a self-report survey of misconduct behaviours and the stress students (n = 916) experienced at one Canadian community college. Results showed that students engaged in a variety of contract cheating behaviours, and experienced a myriad of stressors both in and outside the college context, including traumatic life events. Those who engaged in commercial contract cheating and inappropriate sharing behaviours experienced significantly higher levels of stress. This result differed by type of stress suggesting that not all (...) stress may lead to violation behaviour. Results also suggest that some students are exposed to more stress than others, which could put them at higher risk for engaging in contract cheating. Understanding contract cheating using the stress process framework draws our attention to how a student’s location in the social institutions of work, family, and school, how their positions of advantage or disadvantage, and their involvement in social relationships may produce stress which we have found to be associated with contract cheating. Seeing stress in this way allows post-secondary institutions to address the structural conditions which lead to stress through the development of policy, procedure, and supports for students as they navigate academic integrity throughout their programs. (shrink)

Anlambilimsel bileşimsellik ilkesi, herhangi bir ifadenin anlamının o ifadenin parçalarının anlamlarının bir fonksiyonu olduğunu bildirmektedir. İlke Gottlob Frege’nin dilsel anlamı fonksiyon argüman uygulaması olarak ele alan çalışmalarına dayanmaktadır. Bileşimselliğin, Richard Montague ile birlikte biçimsel anlambilim içerisinde merkezi bir rol aldığı görülmektedir. Bileşimsellik ilkesi, dilsel yapı ve anlamsal yapı arasında homomorfik bir ilişki bulunduğunu bildirmektedir. İlkenin savunucuları bileşimselliğin dilin sistematik ve üretken yapısına önemli katkılar sağladığını iddia etmektedirler. Wlodek Zadrozny, bu görüşe karşı olarak, bileşimselliğin dilin sistematik yapısına herhangi bir katkı sağlamadığını (...) iddia etmektedir. Zadrozny, iddiasını temellendirmek için, herhangi bir anlambilimsel yapının bileşimsel olarak kodlanabileceğini gösteren bir ispat ortaya atmıştır. Zadrozny herhangi bir anlambilimsel yapı için böyle bir anlam fonksiyonunun var olduğunu ise Peter Aczel’in iyi-yapılanmamış kümeler kuramına dayandırmaktadır. Çözüm Lemması bize böyle bir anlam fonksiyonunun var olduğunu bildirmektedir. Zadrozny’nin iddiasına karşı önemli bir itiraz bulunmaktadır. Elde edilen anlamsal yapının asıl anlamsal yapıyı kodlamak için yeterli olmadığı iddia edilmektedir. Bu iddianın temelinde eş anlamlılık olgusu bulunmaktadır. Eş anlamlı ifadelerin yer değiştirme ilkesine uymadığı, bileşimsel olmayan anlambilimsel yapıların elde edilen bileşimsel yapılar tarafından temsil edilemeyeceği iddia edilmektedir. Bu çalışmada, Zadrozny’nin ispatı incelenerek, eş anlamlılık üzerinden yapılan itiraz cevaplandırılmaktadır. İtirazın konusu olan eş anlamlılığın, anlambilimsel olarak korunması gereken bir özellik olmadığı iddia edilmektedir. (shrink)

The topic of population is treated only lightly in the major modern biographies of John Maynard Keynes, yet Keynes himself had strong - if varying - views on the subject. For many years he maintained a neo-Malthusian view of population, based on a postulated link between population growth and deteriorating terms of trade. This led him to take up a militant stance towards 'overpopulated' countries, notably India, China, and Egypt. Keynes on Population publishes two of John Maynard Keynes's manuscripts not (...) published in the Collected Writings: his Cambridge lectures on population and 1914 Oxford lecture on 'Population'. It provides a detailed commentary on the text of 'Population' and discusses the extent of Keynes's engagement with the Social Darwinist doctrine of the 'rapid multiplication of the unfit' and with eugenics. It then traces the subsequent vicissitudes of his views on population and his interventions in the contemporary politics of population. These include his part in the 1920s campaign for birth control, the reversal of his neo-Malthusianism, and his eventual support for family allowances. (shrink)