CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id 53da
authors Carlson, Christopher
year 1993
title Grammatical programming : an algebraic approach to the description of design spaces
source Carnegie Mellon University
summary The intuitiveness of spatial grammars makes them an attractive method of describing spaces of design. But grammars suffer from several inadequacies that limit their usefulness in design practice: (1) they cannot describe spaces of parametric, constrained designs, (2) they provide no control mechanisms for sequencing sets of rules, (3) they provide no 'subroutines' for dealing with complexity, and (4) they do not accommodate transformation mechanisms other than the rewrite rule. All of these inadequacies my [sic] be remedied by embedding grammars in a larger framework of nondeterministic functional programming, a paradigm we call 'grammatical programming.' In grammatical programs, rewrite rules are obtained from arbitrary nondeterministic functions by means of a 'rewrite closure' operator. Both rules and the designs they operate upon may be parametric and have attached constraints, permitting grammatical programs to describe spaces of parametric, constrained designs. Rewrite rules, and more generally, nondeterministic functions, are combined into compound functions by means of the operators of a control algebra, which provides functional composition, union, iteration, and a type of negation called 'failure.' The resulting modularity permits design space descriptions to be constructed, tested, and debugged piecewise, and to draw upon libraries of standard, debugged grammatical components. We begin this dissertation with an informal introduction to grammatical programming. We then give a formal, implementation-independent semantics of grammatical programs similar to the semantics of stratified logic programs. We discuss the implementation of a prototype compiler/interpreter and present case studies of the use of the prototype in describing spaces of rectangular dissections and a style of early Gothic traceries. We conclude with a discussion of lessons learned from the case studies and an agenda of further research necessary to make grammatical programming a useful tool in design practice.
series thesis:PhD
last changed 2003/02/12 21:37

_id 4abb
authors Carlson, Christopher
year 1993
title Describing Spaces of Rectangular Dissections via Grammatical Programming
source CAAD Futures 93 [Conference Proceedings / ISBN 0-444-89922-7] (Pittsburgh / USA), 1993, pp. 143-158
summary For the description of design spaces, grammatical programs offer several advantages over conventional grammars: (1) they integrate rewrite rules with more general non-deterministic functions, (2) they permit a range of programming styles from purely declarative to purely procedural, (3) they can describe spaces Of constrained, parametric designs, and (4) they permit design space descriptions to be developed modularly. We demonstrate these features of grammatical programming by way of a simple example that generates spaces of rectangular dissections.
keywords Generative Systems, Grammars, Design Spaces, Functional Logic Programming
series CAAD Futures
last changed 1999/04/07 10:03

_id acadia19_412
id acadia19_412
authors Del Campo, Matias; Manninger, Sandra; Carlson, Alexandra
year 2019
title Imaginary Plans
source ACADIA 19:UBIQUITY AND AUTONOMY [Proceedings of the 39th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-59179-7] (The University of Texas at Austin School of Architecture, Austin, Texas 21-26 October, 2019) pp. 412-418
summary Artificial Neural Networks (NN) have become ubiquitous across disciplines due to their high performance in modeling the real world to execute complex tasks in the wild. This paper presents a computational design approach that uses the internal representations of deep vision neural networks to generate and transfer stylistic form edits to both 2D floor plans and building sections. The main aim of this paper is to demonstrate and interrogate a design technique based on deep learning. The discussion includes aspects of machine learning, 2D to 2D style transfers, and generative adversarial processes. The paper examines the meaning of agency in a world where decision making processes are defined by human/machine collaborations (Figure 1), and their relationship to aspects of a Posthuman design ecology. Taking cues from the language used by experts in AI, such as Hallucinations, Dreaming, Style Transfer, and Vision, the paper strives to clarify the position and role of Artificial Intelligence in the discipline of Architecture.
series ACADIA
type normal paper
email mdc@span-arch.org
last changed 2019/12/18 08:03

_id ijac201210306
id ijac201210306
authors Leach, Neil; Anders Carlson, Behrokh Khoshnevis, et al.
year 2012
title Robotic Construction by Contour Crafting: The Case of Lunar Construction
source International Journal of Architectural Computing vol. 10 - no. 3, 423-438
summary Contour Crafting is a digitally controlled construction process invented by Professor Behrokh Khoshnevis that fabricates components directly from computer models, using layered fabrication technology. By obviating the need for formwork used in traditional concrete construction, CC can reduce costs and construction times significantly. The technique has great potential as a robotic form of construction reliant on relatively minimal human labor as a form of construction in relatively hazardous environments, such as the Moon with its radiation levels that can prove highly damaging. Current research funded by NASA has been exploring the potential for using CC on the Moon to build structures making use of readily available regolith that is found in great abundance on the surface of the Moon. This article offers an overview of this research and evaluates the merits of using CC on the Moon.
series journal
last changed 2019/05/24 07:55

_id ecaade2013_258
id ecaade2013_258
authors Makris, Michael; Gerber, David; Carlson, Anders and Noble, Doug
year 2013
title Informing Design through Parametric Integrated Structural Simulation
source Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance Proceedings of the 31st eCAADe Conference Volume 1, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 69-77
wos WOS:000340635300006
summary The paper describes the development, testing, and initial findings of a design tool that generates parametrically defined, semi-automatically analyzed, and visualized structural performance of specific truss designs. The prototypical design tool provides structural truss solutions for spans of uniform to non-uniform surface curvatures. Real-time visual structural performance feedback enables the designer to more rapidly develop viable and potentially more efficient designs under user defined load conditions. The research methodology is an example of reinforcing structural learning and intuition within the design process. The research presents findings of the impact of iterative and interactive structural feedback through the development of a parametrically integrated structural truss analysis tool for aiding in design decision support.
keywords Design decision support; structural analysis; parametric design; design optimization; structural design.
series eCAADe
email dgerber@usc.edu
last changed 2016/05/16 09:08

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