The founder of the eponymous engineering firm, which continues to realize seminal projects around the world, Ove Arup is widely acknowledged as one of the most significant engineers of his time. Generated over the course of his illustrious career, these lectures, essays, and interviews broadlyshare several themes: insight into Arup's thinking on the nature of good design, quality and value in the built environment, and the growing need for better collaboration between engineers, architects, and contractors in order to exploit technological (...) advances in materials and methods, while at the same time reducing the environmental impact of building. These chronologically arranged essays span five decades, and many of the themes they address are as relevant today as they were when first produced. Illustrating wisdom, practical problem solving, and Arup's philosophical approach, this book is a necessary and long-overdue addition to the library of anyone who has a passion for, and an interest in, the principles of great design. (shrink)

Observations from philosophy and psychology heavily favor the Empiricist tenet that many lexical concepts are learned. However, many observations also heavily favor the Nativist tenet that such concepts are representationally atomic. Fodor Representations: Philosophical essays on the foundations of cognitive science, 1981, LOT2: The language of thought revisited, 2008) has famously argued that representationally atomic concepts cannot be learned, at least not learned by hypothesis formation and testing. Concept theorists who want to preserve observations about concept learning have developed acquisition (...) models on which the acquired concepts are either non-atomic or are acquired by a process that doesn’t involve hypothesis formation and testing. I offer a model, Baptizing Meanings for Concepts, in which representationally atomic concepts are learned by hypothesis formation and testing. The concepts are learned by the agent’s hypothesizing the existence of a latent/hidden/imperceptible property in objects to explain the objects’ perceptible similarities. Once a hidden property is hypothesized, a new atomic mental name is assigned to it, and this atomic name becomes the concept. Any connections between the name and the representations involved in linking the name to its referent are stored as contingent. Further experience may give the agent reason to revise its hypotheses about latent properties as explanations for its observations. I discuss a software robot implementation of the BMC process that uses a Bayesian learning network. The implementation provides an existence proof of the possibility of learning representationally atomic concepts by hypothesis formation and testing. (shrink)

This article is an attempt at a systematic account of decision making under greater uncertainty than what traditional, mathematically oriented decision theory can cope with. Four components of great uncertainty are distinguished: (1) the identity of the options is not well determined (uncertainty of demarcation) ; (2) the consequences of at least some option are unknown (uncertainty of consequences); (3) it is not clear whether information obtained from others, such as experts, can be relied on (uncertainty of reliance); and (4) (...) the values relevant for the decision are not determined with sufficient precision (uncertainty of values). Some possible strategy types are proposed for each of these components. Decisions related to environmental issues are used to illustrate the proposals. (shrink)

Clear-cut cases of decision-making under risk (known probabilities) are unusual in real life. The gambler’s decisions at the roulette table are as close as we can get to this type of decision-making. In contrast, decision-making under uncertainty (unknown probabilities) can be exemplified by a decision whether to enter a jungle that may contain unknown dangers. Life is usually more like an expedition into an unknown jungle than a visit to the casino. Nevertheless, it is common in decision-supporting disciplines to proceed (...) as if reasonably reliable probability estimates were available for all possible outcomes, i.e. as if the prevailing epistemic conditions were analogous to those of gambling at the roulette table. This mistake can be called the tuxedo fallacy. It is argued that traditional engineering practices such as safety factors and multiple safety barriers avoid this fallacy and that they therefore manage uncertainty better than probabilistic risk analysis (PRA). PRA is a useful tool, but it must be supplemented with other methods in order not to limit the analysis to dangers that can be assigned meaningful probability estimates. (shrink)

We offer philosophical motivations for a method we call Virtual World Cognitive Science (VW CogSci), in which researchers use virtual embodied agents that are embedded in virtual worlds to explore questions in the field of Cognitive Science. We focus on questions about mental and linguistic representation and the ways that such computational modeling can add rigor to philosophical thought experiments, as well as the terminology used in the scientific study of such representations. We find that this method forces researchers to (...) take a god’s-eye view when describing dynamical relationships between entities in minds and entities in an environment in a way that eliminates the need for problematic talk of belief and concept types, such as the belief that cats are silly, and the concept CAT, while preserving belief and concept tokens in individual cognizers’ minds. We conclude with some further key advantages of VW CogSci for the scientific study of mental and linguistic representation and for Cognitive Science more broadly. (shrink)

It is almost universally acknowledged that risks have to be weighed against benefits, but there are different ways to perform the weighing. In conventional risk analysis, collectivist risk-weighing is the standard. This means that an option is accepted if the sum of all individual benefits outweighs the sum of all individual risks. In practices originating in clinical medicine, such as ethical appraisals of clinical trials, individualist risk-weighing is the standard. This implies a much stricter criterion for risk acceptance, namely that (...) the risk to which each individual is exposed should be outweighed by benefits for that same individual. The different choices of risk-weighing methods in different policy areas seem to have emerged from traditional thought patterns and social relations, rather than from explicit deliberations on possible justifications for the alternative ways to weigh risks against benefits. It is not obvious how the prevalent differences in risk-weighing practices can be reconstructed in terms of consistent underlying principles of preventive health or social priority-setting. (shrink)

The AGM theory of belief contraction is extended tomultiple contraction, i.e. to contraction by a set of sentences rather than by a single sentence. There are two major variants: Inpackage contraction all the sentences must be removed from the belief set, whereas inchoice contraction it is sufficient that at least one of them is removed. Constructions of both types of multiple contraction are offered and axiomatically characterized. Neither package nor choice contraction can in general be reduced to contractions by single (...) sentences; in the finite case choice contraction allows for reduction. (shrink)

Rousseau's philosophy of education is contained not only in Emile , but also in The Government of Poland . In each of them he emphasises different aspects of education: How to be a human being? And: How to be a citizen? The main theme investigated by Rousseau in The Government of Poland, is how a minor nation surrounded by such major powers as Russia, Prussia and Austria can ensure its survival? Not having the option of defending itself against its powerful (...) neighbours by military means, Rousseau's advice is to found the Polish nation in the hearts of the Polish people, primarily through citizenship education. However, Poland was finally divided between its neighbours in 1795. Rousseau's writing The Government of Poland can shed some light on the Danish situation after losing the war to Prussia and Austria in 1864. With its defeat Denmark did not disappear, as did Poland, but the territory of the United Monarchy was almost halved by the loss of the duchies of Schleswig and Holstein. After the war some of the same defence strategies and educational ideas as Rousseau had recommended to Poland became important in Denmark. In light of Rousseau's ideas about citizenship education this article will explore the Danish way of trying to establish the nation in the hearts of the people throughout the 20th century. Today the question is: How to understand the conception of self‐determination in the context of establishing European political unity? In his analysis Habermas directs our attention to some of the same dilemmas that Rousseau had dealt with 200 years earlier. Habermas’ advice is to give the European spirit a republican form. (shrink)

Rousseau's philosophy of education is contained not only in Emile (1762), but also in The Government of Poland (1772). In each of them he emphasises different aspects of education: How to be a human being? And: How to be a citizen? The main theme investigated by Rousseau in The Government of Poland, is how a minor nation surrounded by such major powers as Russia, Prussia and Austria can ensure its survival? Not having the option of defending itself against its powerful (...) neighbours by military means, Rousseau's advice is to found the Polish nation in the hearts of the Polish people, primarily through citizenship education. However, Poland was finally divided between its neighbours in 1795. Rousseau's writing The Government of Poland can shed some light on the Danish situation after losing the war to Prussia and Austria in 1864. With its defeat Denmark did not disappear, as did Poland, but the territory of the United Monarchy was almost halved by the loss of the duchies of Schleswig and Holstein. After the war some of the same defence strategies and educational ideas as Rousseau had recommended to Poland became important in Denmark. In light of Rousseau's ideas about citizenship education this article will explore the Danish way of trying to establish the nation in the hearts of the people throughout the 20th century. Today the question is: How to understand the conception of self‐determination in the context of establishing European political unity? In his analysis Habermas directs our attention to some of the same dilemmas that Rousseau had dealt with 200 years earlier. Habermas’ advice is to give the European spirit a republican form. (shrink)

The aim in this article is to widen the understanding of the significance of morality in the Norwegian social formation by comparing it with the French and the American case. After the introductory discussion of the new sociology of morality, previous findings from a study of the Norwegian middle class are reported. A short presentation of republicanism in France and Americanism in USA is followed by an analysis of the cultural and structural peculiarities of the Norwegian case, arguing that the (...) content of the Norwegian middle class morality should be seen in light of the egalitarian tradition. Finally, by way of comparison the article points to possible ways the different configuration of values might be transferred institutionally. (shrink)

In this article, we discuss and compare various positions in leadership theory through the perspective of Kierkegaard’s modes of existence. After a brief presentation of the three modes of existence—aesthetic, ethical and religious—and a description of the ironic–reflective interpretation of the change process, we synthesize leadership theories into the three main positions of instrumental, responsible and spiritual. Later, we compare and integrate the different positions in leadership theory with the three modes of existence. We argue that the various positions in (...) leadership theory represent different modes of existence. This means that leaders anchored within the aesthetical mode of existence tend to prefer the instrumental position, leaders anchored in the ethical mode of existence tend to prefer the responsible position, and leaders anchored in the religious mode of existence tend to prefer the spiritual position. In accordance with this line of reasoning the ironic–reflective interpretation of Kierkegaard’s three modes of existence gives a relevant explanation for development of leadership theory, and we delve deeper into some key dimensions in the expanding contexts of ontology, epistemology, ethics, the image of man and organizational ends. We conclude that it is necessary to start a process of transition in the mode of existence and in leadership theory in order to cope with the underlying patterns of the natural, cultural and economic crises we are facing today. (shrink)

Observations from philosophy and psychology heavily favor the Empiricist tenet that many lexical concepts are learned. However, many observations also heavily favor the Nativist tenet that such concepts are representationally atomic. Fodor Representations: Philosophical essays on the foundations of cognitive science, 1981, LOT2: The language of thought revisited, 2008) has famously argued that representationally atomic concepts cannot be learned, at least not learned by hypothesis formation and testing. Concept theorists who want to preserve observations about concept learning have developed acquisition (...) models on which the acquired concepts are either non-atomic or are acquired by a process that doesn’t involve hypothesis formation and testing. I offer a model, Baptizing Meanings for Concepts, in which representationally atomic concepts are learned by hypothesis formation and testing. The concepts are learned by the agent’s hypothesizing the existence of a latent/hidden/imperceptible property in objects to explain the objects’ perceptible similarities. Once a hidden property is hypothesized, a new atomic mental name is assigned to it, and this atomic name becomes the concept. Any connections between the name and the representations involved in linking the name to its referent are stored as contingent. Further experience may give the agent reason to revise its hypotheses about latent properties as explanations for its observations. I discuss a software robot implementation of the BMC process that uses a Bayesian learning network. The implementation provides an existence proof of the possibility of learning representationally atomic concepts by hypothesis formation and testing. (shrink)

We study finite ℓ‐colourable structures with an underlying pregeometry. The probability measure that is used corresponds to a process of generating such structures by which colours are first randomly assigned to all 1‐dimensional subspaces and then relationships are assigned in such a way that the colouring conditions are satisfied but apart from this in a random way. We can then ask what the probability is that the resulting structure, where we now forget the specific colouring of the generating process, has (...) a given property. With this measure we get the following results: (1) A zero‐one law. (2) The set of sentences with asymptotic probability 1 has an explicit axiomatisation which is presented. (3) There is a formula (not directly speaking about colours) such that, with asymptotic probability 1, the relation “there is an ℓ‐colouring which assigns the same colour to x and y” is defined by. (4) With asymptotic probability 1, an ℓ‐colourable structure has a unique ℓ‐colouring (up to permutation of the colours). (shrink)

[1]. Antikken -- 2. Middelalder, Renessanse.

Most people find it obvious that concepts like APPLE, DOG, WATER, CACTUS, SWIM, CHIRP, FURRY, and SMOOTH are acquired from perceptual experiences along with some kind of inferential procedure. Models of how these concepts are inferentially acquired, however, force the acquired concepts to be representationally complex, built from, and composed by, the more primitive representations. Since at least the time of Plato, philosophers and psychologists have struggled to find complex sets of representations that have the same meanings, definitionally or probabilistically, (...) as these concepts. For example, to think about the property-kind being gold is not the same as to think about the complex property-kind being yellowish & shiny & malleable.... I call this Fodor's Challenge: Find an acquisition process that is genuinely inferential and yields a concept that genuinely is one of these lexical concepts. Rather than continue the pursuit of a complex representation that has the same meaning as our concept GOLD. I offer a model on which many lexical concepts are acquired from perception and inference, without being built up from, and composed by, the representations involved. The model, Baptizing Meanings for Concepts, is inspired in part by Saul Kripke's baptism process for assigning meanings to linguistic terms. Many lexical concepts, according to the BMC, are acquired by inferring the presence a new property-kind, picking out the property-kind in terms of those perceptible features, and then assigning a simple mental term, a concept, for that property-kind. (shrink)

Cognitive science has evolved since early disputes between radical empiricism and radical nativism. The authors are reacting to the revival of radical empiricism spurred by recent successes in deep neural network (NN) models. We agree that language-like mental representations (language-of-thoughts [LoTs]) are part of the best game in town, but they cannot be understood independent of the other players.

This book explains how the logic of theory change employs formal models in the investigation of changes in belief states and databases. The topics covered include equivalent characterizations of AGM operations, extended representations of the belief states, change operators not included in the original framework, iterated change, applications of the model, its connections with other formal frameworks, and criticism of the model.

Modern belief revision theory is based to a large extent on partial meet contraction that was introduced in the seminal article by Carlos Alchourrón, Peter Gärdenfors, and David Makinson that appeared in 1985. In the same year, Alchourrón and Makinson published a significantly different approach to the same problem, called safe contraction. Since then, safe contraction has received much less attention than partial meet contraction. The present paper summarizes the current state of knowledge on safe contraction, provides some new results (...) and offers a list of unsolved problems that are in need of investigation. (shrink)