Structured argumentation systems, and their implementation, represent an important research subject in the area of Knowledge Representation and Reasoning. Structured argumentation advances over abstract argumentation frameworks by providing the internal construction of the arguments that are usually defined by a set of (strict and defeasible) rules. By considering the structure of arguments, it becomes possible to analyze reasons for and against a conclusion, and the warrant status of such a claim in the context of a knowledge base represents the main (...) output of a dialectical process. Computing such statuses is a costly process, and any update to the knowledge base could potentially have a huge impact if done naively. In this work, we investigate the case of updates consisting of both additions and removals of pieces of knowledge in the Defeasible Logic Programming (DeLP) framework, first analyzing the complexity of the problem and then identifying conditions under which we can avoid unnecessary computations—central to this is the development of structures (e.g. graphs) to keep track of which results can potentially be affected by a given update. We introduce a technique for the incremental computation of the warrant statuses of conclusions in DeLP knowledge bases that evolve due to the application of (sets of) updates. We present the results of a thorough experimental evaluation showing that our incremental approach yields significantly faster running times in practice, as well as overall fewer recomputations, even in the case of sets of updates performed simultaneously. (shrink)

Argumentation is an important research area in the field of AI. There is a substantial amount of work on different aspects of Dung’s abstract Argumentation Framework (AF). Two relevant aspects considered separately so far are: i) extending the framework to account for recursive attacks and supports, and ii) considering dynamics, i.e., AFs evolving over time. In this paper, we jointly deal with these two aspects. We focus on High-Order Argumentation Frameworks with Necessities (HOAFNs) which allow for attack and support relations (...) (interpreted as necessity) not only between arguments but also targeting attacks and supports at any level. We propose an approach for the incremental evaluation of the credulous acceptance problem in HOAFNs, by “incrementally” computing an extension (a set of accepted arguments, attacks and supports), if it exists, containing a given goal element in an updated HOAFN. In particular, we are interested in monitoring the credulous acceptance of a given argument, attack or support (goal) in an evolving HOAFN. Thus, our approach assumes to have a HOAFN Δ, a goal \rho occurring in Δ, an extension E for Δ containing \rho, and an update u establishing some changes in the original HOAFN, and uses the extension for first checking whether the update is relevant; for relevant updates, an extension of the updated HOAFN containing the goal is computed by translating the problem to the AF domain and leveraging on AF solvers. We provide formal results for our incremental approach and empirically show that it outperforms the evaluation from scratch of the credulous acceptance problem for an updated HOAFN. (shrink)

In our everyday life, we have the genuine feeling that when something we use works very well, we forget that we are doing something that is mediated by something else. It happens when we read through our glasses, or when we drive home, or when we play guitar. In all those cases, it can be said that the device becomes an extension of our body, or that we have incorporated it. In this paper I want to discuss the extension/incorporation dichotomy (...) as presented in contemporary cognitive sciences. I will present the state of the art in the debate in order to promote a methodological shift, namely to adopt two concept borrowed from Material Engagement Theory developed by Lambros Malafouris. By advocating the concepts of temporality and metaplasticity, I will argue for two different but related things: 1) extension and incorporation don’t have to be conceived only spatially, but temporally. This shift leads to two distinctive implications: first, the sooner two entities establish a prosthetic contact, the higher the chances to reach incorporation; second, extension temporally precedes incorporation; the former being an early-staged phenomenon of – a condition of possibility for – the latter. 2) Such a temporal perspective is at the base of metaplasticity, which describes, in the context of MET, the constant, co-constitutive loop between humans and things: metaplasticity deflates the privileged role traditionally attributed to the subject in the making of phenomenal experience. Finally, I will discuss extension and incorporation in media theory, relying on the concept of radical mediation. (shrink)

This article examines the principle of wealth maximization, as developed by Richard Posner, seeking to dispel misunderstandings, address criticisms, and contextualize its role in legal and political philosophy. The paper first delineates the distinction between the concepts of experienced utility and decision utility, elucidating how the latter is fundamental to the principle of wealth maximization. Next, the authors engage with criticisms of wealth maximization, including issues relating to basic needs, individual rights, and distributive justice. The paper contends that these aspects (...) of ‘justice’ can be understood as emergent properties of efficiency. The article then presents affirmative arguments for wealth maximization by connecting it to social contract theory and demonstrating its consistency with the tenets of liberal democracy. By analyzing the concept from both Hobbesian and Rawlsian perspectives, the paper illustrates the merits of the wealth maximization principle in relation to social contract theory. In conclusion, the article argues that wealth maximization serves as a robust and justifiable framework for legal and philosophical analysis, ultimately offering a better fit with the principles of liberal democracy than competing normative theories. (shrink)

This paper explores the mediational and constitutional role of technical images (both analogue and digital) for the definition and continuity of the sense of self, proposing a new framework within the extended mind theory grounded in recent approaches to memory. Traditional cognitive science often views the mind as confined within the brain, but we argue that cognition is not merely extended but fundamentally constituted through ongoing material engagements with technical images within specific sociocultural contexts. Our interdisciplinary approach integrates cognitive archaeology, (...) media theory, and cognitive sciences, emphasising the dynamic, embodied, and situated nature of cognition. This perspective shifts the understanding of the mind from a static, internal entity to a dynamic, distributed process continually mediated through organismic transactions in the environment. Building on this tradition of studies in the extended mind, we introduce the Mediational-Constitutional Principle, arguing that technical images not only trigger cognitive processes but actively constitute them. In the paper, we illustrate how technical images mediate and constitute the sense of self because they are central in how memory is continually re-enacted in specific sociomaterial environments made of people, things, and practices. These images function as automatic ecological records, blending past and present, influencing personal narratives and memory. (shrink)

Law and economics scholarship has traditionally analyzed efficient breach cases monolithically. By grouping efficient breach cases together, this literature treats the subjective motives and the distributive effects of the breach as immaterial. The Restatement (Third) of Restitution and Unjust Enrichment introduced a distinction based on the intent and the effects of the breach, allowing courts to use disgorgement remedies in cases of ‘opportunistic’ breach of contract (i.e., ‘deliberate and profitable’ breaches). In this article, we evaluate this approach, focusing on the (...) effects of disgorgement remedies on allocative and productive efficiency, information-forcing and competitive effects, and restraint of breach-searching incentives. We show that, even from a purely consequentialist perspective, disgorgement remedies may be normatively warranted, especially when involving sellers’ breach. Recent experimental evidence revealed that the preferences and reactions of ordinary people are in line with our evaluation of the effects of opportunistic breach. (shrink)

This paper aims to frame a discussion on the philosophy of the city within the context of cognitive sciences. In the first part of the paper, we will outline the double shift from a linguistic and ocularcentric account towards a sensorimotor one; then we will defend the idea that the less you refer to language and ocularcentrism in handling the urban dimension, the better phenomena can be understood and described. More generally, we argue that the most intriguing conceptual contaminations between (...) cognitive sciences and urban philosophies, as well as the best approach in designing and planning cities, have become attainable because of the marginalisation of language-inspired models of cognition and ocular imperialism in favour of other aspects of our phenomenal consciousness, like emotions, habits, and sensorimotor attitudes. (shrink)

This Article analyzes the interaction between the burden of proof and evidentiary discovery rules. Both sets of rules can affect incentives for prospective injurers to invest in evidence technology. This interaction becomes acutely important in the private international law setting, where jurisdictions are split on the question whether the burden of proof should be treated as a substantive or procedural matter. When a tort occurs in Europe, but the case is litigated in American courts, treating the burden of proof as (...) a procedural matter preserves the complementarity of incentives created by the burden of proof and evidentiary rules. Conversely, treating the burden of proof as a substantive matter creates a mismatch in incentives created by the burden of proof and evidentiary rules. (shrink)

In a recent article, Gersen and Posner (2007) examined the role of timing rules in promoting the optimal timing of legislative action. In this brief essay, we address the issue of optimal timing of lawmaking through the lens of option theory. We provide a formalization of seven alternative timing rules and evaluate the option value of those legislative strategies. This formalization allows us to evaluate the desirability of alternative timing rules in different regulatory environments.

Human cognition is not a phenomenon occurring in the head, but a process resulting from the coupling between organism and environment, organic and inorganic. In this essay, I will discuss the terms “material engagement” and “mediation” to show two distinct ways in which such a process may ensue. I will claim that these two ways are strictly correlated despite their being different and that they correspond to two theoretical movements in the field of cognitive sciences: the extended mind and the (...) enactive cognition. At last, I will refer to the concepts of temporality and sensorimotor allopoiesis to show the nature of such a correlation. (shrink)

Punitive damages and class actions can be viewed as sharing a common economic function - creating optimal deterrence. This is a function that these remedies can best pursue in different domains. When a tortfeasor causes harm that affects many victims, the preferred remedy is a class action. This is especially so when the amount of compensatory damages are high.There are scenarios, however, in which imposing punitive damages represents the best solution. We identify some of these scenarios to suggest the proper (...) domains of these two remedies. Finally, we identify situations where a combined use of these two remedies is desirable. We suggest that when the amount of losses suffered by victims is so small as to preclude a class action due to transaction costs and inactivity, it may nevertheless be useful to combine punitive damages with a class action. Punitive damages should be awarded within a class action if and only if there are frictions that could prevent the injured party from taking legal action. (shrink)

The Oxford Handbook of Law and Economics provides a broad overview of numerous current and developing topics in the field of law and economics. With contributions by over one-hundred experts in the field within one work, the volume covers issues ranging from as far as Law and Neuroeconomics to European Union Law and Economics to Feminist Theory and Law and Economics. Its detail and breadth make it an invaluable reference book and contribution to the field.

The Oxford Handbook of Law and Economics provides a broad overview of numerous current and developing topics in the field of law and economics. With contributions by over one-hundred experts in the field within one work, the volume covers issues ranging from as far as Law and Neuroeconomics to European Union Law and Economics to Feminist Theory and Law and Economics. Its detail and breadth make it an invaluable reference book and contribution to the field.

The Oxford Handbook of Law and Economics provides a broad overview of numerous current and developing topics in the field of law and economics. With contributions by over one-hundred experts in the field within one work, the volume covers issues ranging from as far as Law and Neuroeconomics to European Union Law and Economics to Feminist Theory and Law and Economics. Its detail and breadth make it an invaluable reference book and contribution to the field.

In this article we propose to overlap aesthetic experience with medial experience, starting from the assumption that every aesthetic experience is always a medial experience. Adopting a naturalistic approach, in which we explain what we mean with the term naturalization, we suggest a partial review of the issue. First, we state that human natural language is a kind of technology, made possible by certain physical, cognitive and social features; this sort of biological technology must be considered as an underlying condition (...) for aesthetic experience. Secondly, we suggest the importance of social relationships among various species, demonstrating the role played by this relationships in natural selection: a new perspective will emerge. Thirdly, we explain in more detail why aesthetic experience can be likened to medial experience; in doing so, we offer an epistemological comparison between evolutionary theory and Marshall McLuhan’s approach to media studies. Resulting comparison will offer an original definition of aesthetic experience which rises through the interaction engaged by our natural technologies interacting prosthetically with environment. (shrink)