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- Jörg R. J. Schirra & Martin Scholz (1998). Abstraction Versus Realism: Not the Real Question. In Thomas Strothotte (ed.), [Book Chapter]. Springer.When browsing through a book on computer graphics, one usually finds a lot of more or less interesting pictures that are produced by means of computers. These pictures are embedded in pages of technical texts describing how this image generation was performed and why it provides a better way to do so than other methods. Less space is usually given to the methodological background and the motivation underlying the preoccupation with computer visualization. In this chapter, we want to complement the more technically oriented part of this book with some reflections as to why such techniques can be interesting not only for computer graphics researchers, and where, from a communication-theoretic point of view, they might be of use in our society.
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Introduction -- Stout's proto-new-realism -- Situating G.F. Stout -- Stout's doctrine of primary and secondary qualities -- Stout and the Brentano School -- Representative function of presentations -- Sensible space and real space -- Cook Wilson's geometrical counter-example -- Stout's central question -- Ideal constructions -- Ideal constructions in psychology and epistemology -- British new realism : the language of madness -- Stout's criticisms of Alexander -- Alexander's response -- The nature of sensations, images, and other presentations -- What is the metaphysical problem? -- "How can the interpretation which is supplied by the mind be a constituent of the [physical] object?" -- Some general remarks -- British new realism : the language of common-sense -- T.P. Nunn and the new realism -- Nunn and things -- Nunn's postulate -- Russell and Stout on sensible objects -- Russell, sense-data and sensibilia -- The methods of construction -- Russell's constructions and Nunn's postulate -- Constructions, psychology, and the essence of philosophy -- The methods of logical construction -- A mathematical development -- The principle of abstraction.
Introduction -- As real as it gets : Derrida -- The experiential divide : Merleau-Ponty and Derrida -- Connective tissue -- The originary disconnect -- Deconstruction and the computer -- Reality show: baudrillard -- The problem with reality -- The genealogy of value -- Hyperreality -- Disappearance and death -- The baudrillard twins -- Reality shows : Virilio -- Speed, light ,and the attack on reality -- The tyranny of real time -- The ultimate interface -- War and faith -- The fate of the real : Lyotard -- Withdrawal of the real : the two waves -- Complexification and the inhuman -- Virtual intelligence -- TDers, BUers, AI, and AL -- The remainder -- Getting real(er) -- The problem of technology -- The question of alienation -- Between alienation and reconciliation -- In praise of materialism.
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Floridi and Sanders, seminal work, “On the morality of artificial agents” has catalyzed attention around the moral status of computer systems that perform tasks for humans, effectively acting as “artificial agents.” Floridi and Sanders argue that the class of entities considered moral agents can be expanded to include computers if we adopt the appropriate level of abstraction. In this paper we argue that the move to distinguish levels of abstraction is far from decisive on this issue. We also argue that adopting certain levels of abstraction out of context can be dangerous when the level of abstraction obscures the humans who constitute computer systems. We arrive at this critique of Floridi and Sanders by examining the debate over the moral status of computer systems using the notion of interpretive flexibility. We frame the debate as a struggle over the meaning and significance of computer systems that behave independently, and not as a debate about the ‘true’ status of autonomous systems. Our analysis leads to the conclusion that while levels of abstraction are useful for particular purposes, when it comes to agency and responsibility, computer systems should be conceptualized and identified in ways that keep them tethered to the humans who create and deploy them.
Against influential strands of feminist theory, I argue that there is nothing essentialist or homogenising about the category ‘women’. I show that both intersectional claims that it is impossible to separate out the ‘woman part’ of women, and deconstructionist contentions that the category ‘women’ is a fiction, rest on untenable meta-theoretical assumptions. I posit that a more fruitful way of approaching this disputed category is to treat it as an abstraction. Drawing on the philosophical framework of critical realism I elucidate the nature of the vital and inevitable process of abstraction, as a means of finding a way out of the theoretical and methodological impasse that the ‘ban’ on the category ‘women’ has caused. Contrary to many contemporary feminist theorists, I contend that, although the category ‘women’ does not reflect the whole reality of concrete and particular women, it nevertheless refers to something real, namely the structural position as woman.
I offer an explication of the notion of computer, grounded in the practices of computability theorists and computer scientists. I begin by explaining what distinguishes computers from calculators. Then, I offer a systematic taxonomy of kinds of computer, including hard-wired versus programmable, general-purpose versus special-purpose, analog versus digital, and serial versus parallel, giving explicit criteria for each kind. My account is mechanistic: which class a system belongs in, and which functions are computable by which system, depends on the system's mechanistic properties. Finally, I briefly illustrate how my account sheds light on some issues in the history and philosophy of computing as well as the philosophy of mind.
I present a general theory of abstraction operators which treats them as variable-binding term- forming operators, and provides a reasonably uniform treatment for definite descriptions, set abstracts, natural number abstraction, and real number abstraction. This minimizing, extensional and relational theory reveals a striking similarity between definite descriptions and set abstracts, and provides a clear rationale for the claim that there is a logic of sets (which is ontologically non- committal). The theory also treats both natural and real numbers as answering to a two-fold process of abstraction. The first step, of conceptual abstraction, yields the object occupying a particular position within an ordering of a certain kind. The second step, of objectual abstraction, yields the number sui generis, as the position itself within any ordering of the kind in question.
Machine generated contents note: -- List of figures -- Acknowledgements -- Introduction -- Convention -- Seeing and the Experience of Pictures -- A Theory of Depiction -- Resemblance -- Transparency and Resemblance -- Realism -- Varieties of Realism -- Abstraction -- Notes -- Index.
We characterize abstraction in computer science by first comparing the fundamental nature of computer science with that of its cousin mathematics. We consider their primary products, use of formalism, and abstraction objectives, and find that the two disciplines are sharply distinguished. Mathematics, being primarily concerned with developing inference structures, has information neglect as its abstraction objective. Computer science, being primarily concerned with developing interaction patterns, has information hiding as its abstraction objective. We show that abstraction through information hiding is a primary factor in computer science progress and success through an examination of the ubiquitous role of information hiding in programming languages, operating systems, network architecture, and design patterns.
Few years ago, the department of computer science of the University Magdeburg invented a completely new diploma programme called 'computational visualistics', a curriculum dealing with all aspects of computational pictures. Only isolated aspects had been studied so far in computer science, particularly in the independent domains of computer graphics, image processing, information visualization, and computer vision. So is there indeed a coherent domain of research behind such a curriculum? The answer to that question depends crucially on a data structure that acts as a mediator between general visualistics and computer science: the data structure "image". The present text investigates that data structure, its components, and its application conditions, and thus elaborates the very foundations of computational visualistics as a unique and homogenous field of research. Before concentrating on that data structure, the theory of pictures in general and the definition of pictures as perceptoid signs in particular are closely examined. This includes an act-theoretic consideration about resemblance as the crucial link between image and object, the communicative function of context building as the central concept for comparing pictures and language, and several modes of reflection underlying the relation between image and image user. In the main chapter, the data structure "image" is extendedly analyzed under the perspectives of syntax, semantics, and pragmatics. While syntactic aspects mostly concern image processing, semantic questions form the core of computer graphics and computer vision. Pragmatic considerations are particularly involved with interactive pictures but also extend to the field of information visualization and even to computer art. Four case studies provide practical applications of various aspects of the analysis.
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book 2, distinction 3, extracts from which are in Hyman and Walsh. The first question is, in effect, whether any theory of individuation is needed. Aren't real things individual "from themselves", just by being real? The Latin says: ex se , sive ex natura sua , "from (or out of) itself, or from its nature". Elsewhere he uses as equivalent per se and de se . Se means itself, ex means from or out of, per means through, de means of or by or from. So the question is whether an individual thing gets it singularity or individuality from itself, not from anything else.
Discussion of Jörg R. J. Schirra & Martin Scholz, Abstraction versus realism: Not the real question
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