Cumincad : CUMINCAD Papers : Search Results

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	caadria2023_292
id	caadria2023_292
authors	Langenhan, Christoph, Bielski, Jessica, Ziegler, Christoph, Eisenstadt, Viktor, Althoff, Klaus-Dieter and Dengel, Andreas
year	2023
title	Cross-Disciplinary Semantic Building Fingerprints ‚ AI Knowledge Graphs to Store Topological Building Information Derived From Semantic Building Models (BIM) to Apply Methods of Artificial Intelligence (AI)
doi	https://doi.org/10.52842/conf.caadria.2023.1.129
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 129–138
summary	The advancing digitalization in the building sector with the possibility to store and retrieve large amounts of data has the potential to digitally support planners with extensive design and construction information. Large amounts of semi-structured three-dimensional geometric data of buildings are usually available today, but the topological relationships are rarely explicitly described and thus not directly usable with computational methods of AI. To this end, we propose methods for indexing spatial configurations inspired by the similarity analysis of incomplete human fingerprints, since the early design stage of architectural design is characterized by incomplete information. For this, the topology of spatial configurations is extracted from Building Information Modelling (BIM) data and represented as graphs. In this paper, Semantic Building Fingerprints (SBFs) and Semantic Urban Fingerprints (SUFs), as well as use cases for AI methods are described.
keywords	Conceptual design, building information modelling, knowledge graph, artificial intelligence
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	ecaade2011_014
id	ecaade2011_014
authors	Langenhan, Christoph; Haß, Sebastian; Weber, Markus; Petzold, Frank; Liwicki, Marcus; Dengel, Andreas
year	2011
title	Investigating research strategies for accessing knowledge stored in semantic models
doi	https://doi.org/10.52842/conf.ecaade.2011.403
source	RESPECTING FRAGILE PLACES [29th eCAADe Conference Proceedings / ISBN 978-9-4912070-1-3], University of Ljubljana, Faculty of Architecture (Slovenia) 21-24 September 2011, pp.403-411
summary	Current data storage and retrieval strategies usually use keywords and are not well suited to retrieving spatial configurations, the proportions of rooms or their interrelationships. Instead of using text-based research, a graphical inquiry and query system is proposed that can recognise formal structures on the one hand and concept sketches on the other. Using artificial intelligence methods and multimodal interaction, knowledge is stored in semantic models. From previously stored planning solutions in a BIM, semantic fingerprints are derived that describe their functional and topological characteristics. The search system likewise derives a semantic fingerprint from the spatial configuration of a concept sketch and compares it with fingerprints stored in the repository. Similar matches are then shown to the designer.
wos	WOS:000335665500046
keywords	Knowledge management; ontology; case-based design; industry foundation classes; multimodal
series	eCAADe
email
last changed	2022/05/01 23:21

_id	sigradi2016_381
id	sigradi2016_381
authors	Langenhan, Christoph; Petzold, Frank
year	2016
title	Views on architecture: Different abstraction layers of building information imply special working methods and interaction metaphors to support a variety of courses of action
source	SIGraDi 2016 [Proceedings of the 20th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Argentina, Buenos Aires 9 - 11 November 2016, pp.584-589
summary	In the early design phases, designers usually only have a vague idea of the building they are designing. Different aspects of potential design variants need to be tested, assessed and compared with one another. The ability to consider design variants in different ways – based on floor plan, schematic concept, section or 3D visualization, for example – helps to identify problems as well as reveal areas of potential. This paper describes software prototypes developed to help designers input and present different levels of abstraction. The transformations between these levels of abstraction reveal new solutions and make designers aware of issues that need to be considered during the design process.
keywords	Semantic fingerprint, Building Information Modeling, HCI, retrieval
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	ascaad2014_030
id	ascaad2014_030
authors	Langenhan, Christoph; Sahm Alexander; Petzold Frank; Seifert Arne and Teichert Astrid
year	2014
title	Mobile Application to Collect Information About Architecture to Obtain a Collective Knowledge Base: 'ar:searchbox.app'
source	Digital Crafting [7th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2014 / ISBN 978-603-90142-5-6], Jeddah (Kingdom of Saudi Arabia), 31 March - 3 April 2014, pp. 375-382
summary	During the early stages of the architectural design process, students and architects seek information for inspiration, and to evaluate design ideas or similar solutions. An essential part of design education therefore involves building up a knowledge base of already built or designed buildings. Most students gather such information by visiting or researching building designs, for example through photos taken on design studio field trips. These photos are used for studio work or archived for later use. The “ar:searchbox.app” aims to support this in two ways. Firstly, by supporting easy mobile information acquisition and sharing, as well as the semi-automatic derivation of high quality metadata; and secondly, by employing urban environment sensitive search and similarity-based browsing strategies to support mobile education as well as a web-based access to the information. To provide long-term access and to establish an information base that is not restricted to a single design studio, the “ar:searchbox.app” builds on our previous “ar:searchbox” project which uses a central media server called “mediaTUM” that provides a handling concept for flexible metadata schemas and scalable infrastructures.
series	ASCAAD
email
last changed	2016/02/15 13:09

_id	aa73
authors	Langley, Pat
year	1983
title	Representational Issues in Learning Systems
source	IEEE Computer. October, 1983. vol. 16: pp. 47-51 : ill. includes bibliography
summary	One of the central issues in artificial intelligence involves learning -- the modification of behavior through the acquisition of knowledge. The way knowledge is represented impacts the way learning occurs and indeed may determine whether learning can occur at all. The issues of learning and representation have many potential interactions. The purpose of this paper is to illuminate representational problems that may not have occurred to researchers setting out to construct self-modifying systems, and to suggest some possible solution to these problems
keywords	AI, learning, knowledge acquisition, knowledge representation
series	CADline
last changed	1999/02/12 15:09

_id	39fb
authors	Langton, C.G.
year	1996
title	Artificial Life
source	Boden, M. A. (1996). The Philosophy of Artificial Life, 39-94.New York and Oxford: Oxford University Press
summary	Artificial Life contains a selection of articles from the first three issues of the journal of the same name, chosen so as to give an overview of the field, its connections with other disciplines, and its philosophical foundations. It is aimed at those with a general background in the sciences: some of the articles assume a mathematical background, or basic biology and computer science. I found it an informative and thought-provoking survey of a field around whose edges I have skirted for years. Many of the articles take biology as their starting point. Charles Taylor and David Jefferson provide a brief overview of the uses of artificial life as a tool in biology. Others look at more specific topics: Kristian Lindgren and Mats G. Nordahl use the iterated Prisoner's Dilemma to model cooperation and community structure in artificial ecosystems; Peter Schuster writes about molecular evolution in simplified test tube systems and its spin-off, evolutionary biotechnology; Przemyslaw Prusinkiewicz presents some examples of visual modelling of morphogenesis, illustrated with colour photographs; and Michael G. Dyer surveys different kinds of cooperative animal behaviour and some of the problems synthesising neural networks which exhibit similar behaviours. Other articles highlight the connections of artificial life with artificial intelligence. A review article by Luc Steels covers the relationship between the two fields, while another by Pattie Maes covers work on adaptive autonomous agents. Thomas S. Ray takes a synthetic approach to artificial life, with the goal of instantiating life rather than simulating it; he manages an awkward compromise between respecting the "physics and chemistry" of the digital medium and transplanting features of biological life. Kunihiko Kaneko looks to the mathematics of chaos theory to help understand the origins of complexity in evolution. In "Beyond Digital Naturalism", Walter Fontana, Guenter Wagner and Leo Buss argue that the test of artificial life is to solve conceptual problems of biology and that "there exists a logical deep structure of which carbon chemistry-based life is a manifestation"; they use lambda calculus to try and build a theory of organisation.
series	other
last changed	2003/04/23 15:14

_id	2885
authors	Lansdown, J. and Maver, T.W.
year	1984
title	CAD in Architecture and Building
source	Computer Aided Design, Vol 16, No 3
summary	CAAD tool have gradually come into use in architecture over the past years. Appraisal and evaluation of designs and design tools and the preparation of product innovations are discussed. Types of visualisation and flexible layout programs for CAAD are assessed. The areas which knowledge-based design systems should cover are discussed .
series	journal paper
email
last changed	2003/06/10 15:55

_id	59de
authors	Lansdown, J.
year	1987
title	The Creative Aspects of CAD: A Possible Approach
source	Design Studies, (8) 2, pp. 76-81
summary	Whilst it is common ground that CAD systems can help designers in many areas, what is not clear is the extent of assistance that can be provided in the creative aspects. A possible approach to creative designing with computers is that of `prototype modification'. It is possible to see all designing in terms of this approach. The distinction between innovative design and design by modification results only from the quality and nature of the prototypes and modifications involved.
series	journal paper
last changed	2003/04/23 15:14

_id	4b27
authors	Lansdown, John
year	1984
title	Knowledge for Designers
source	Architect`s journal. England: February, 1984. vol. 179: pp. 55-58
summary	The first of two articles discussing expert systems. Both design and construction are carried out within the framework of empirical rules and regulations designed more for ease of implementation and checking than scientific validity. On completion of a building, little follow up research is done on the way it is used or on the way in which the assumption made in its design are borne out in practice. This present two problems: How to make information from disparate sources easily available to designers and constructors, and how to make them aware that they need this information. This paper describes how a special type of computer programming might assist in solving these problems
keywords	design, construction, building, expert systems, knowledge base, systems, programming, life cycle
series	CADline
last changed	1999/02/12 15:09

_id	0e62
authors	Lansdown, John
year	1987
title	Some Notes on the Impact of Computing on Design
doi	https://doi.org/10.52842/conf.ecaade.1987.x.r0a
source	Architectural Education and the Information Explosion [eCAADe Conference Proceedings] Zurich (Switzerland) 5-7 September 1987.
summary	Computers have been potentially able to assist designers in their work for almost thirty years. A few pioneers have been using them for this purpose for more than twenty years but it is only in the last seven or so that use has become really widespread. Undoubtedly, the most widespread use of computers in architectural practice is for making production drawings - which they can do with an accuracy, speed and reliability difficult to achieve by manual means. But this use does not even begin to exploit the full possibilities that computer aided design opens up. What I want to do here is to introduce these possibilities and discuss what impact they might have on the way we design in the immediate future.
series	eCAADe
last changed	2022/06/07 07:50

_id	eacf
authors	Lantz, Keith A. and Nowicki, William I.
year	1984
title	Structured Graphics for Distributed Systems
source	ACM Transactions on Graphics January, 1984. vol. 3: pp. 23-51 : ill.
summary	includes bibliography: pp. 48-51. One of the most important functions of an intelligent workstation is to provide a state-of-the-art user interface to distributed resources. One aspect of such an interface is virtual terminal support for both local and remote applications with a range of requirements, including graphics. To ensure good response for remote applications in particular, the bulk of user interaction must be handled local to the workstation. Therefore, the terminal management software on the workstation must provide object modeling as well as viewing facilities, in contrast to most contemporary graphics systems. One way of doing this is to support structured display files. It is equally important to support simultaneous access to multiple applications ; thus the terminal management software must provide window system facilities. Lastly, since the terminal management software should present a common interface to both local and remote applications, the workstation itself should be regarded as a multifunction component of the distributed system and not strictly as a terminal or a personal computer. This paper presents the system architecture and protocols necessary to achieve these goals and evaluates an existing implementation
keywords	user interface, windowing, computer graphics, programming
series	CADline
last changed	2003/06/02 10:24

_id	sigradi2020_157
id	sigradi2020_157
authors	Lanzara, Emanuela; Capone, Mara
year	2020
title	Tangential surfaces to optimize digital manufacturing of complex shapes
source	SIGraDi 2020 [Proceedings of the 24th Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Online Conference 18 - 20 November 2020, pp. 157-165
summary	The knowledge of geometric-mathematical rules allows to solve several problems about complex systems design and manufacturing. Geometric genesis of surfaces and their properties represent the main basis to solve both constructive and measurement problems. A developable surface can be manufactured starting from a flat strip, using a flexible and non- deformable material. Geometry studies properties that don't change and, therefore, the shape of the strip to obtain a certain configuration after a series of rigid movements. Our goal is to test different approches (Additive Manufacturing vs Subtractive Manufacturing) to manufacture a lamp using a tangential developable surface.
keywords	Generative design, tangential surfaces, digital fabrication, developable surfaces, Additive Manufacturing, Subtractive Manufacturing
series	SIGraDi
email
last changed	2021/07/16 11:48

_id	4904
authors	Lapre, L. and Hudson, P.
year	1988
title	Talking about Design: Supporting the Design Process with Different Goals
source	CAAD futures ‘87 [Conference Proceedings / ISBN 0-444-42916-6] Eindhoven (The Netherlands), 20-22 May 1987, pp. 127-136
summary	The architectural design process has more than one participant. Each participant has his own way of approaching the information embedded in a design. In the future the CAAD systems of these participants must be able to communicate and exchange information. For a communication of this kind there must be a common ground, a frame of reference, in which these different points of view can be expressed. This frame of reference or model must support participants accessing the same information with different objectives and for different purposes. We shall propose such a model based on research results obtained by the analysis of architectural knowledge and designs. The model incorporates certain aspects drawn from AI.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	ad21
authors	Laptali, E., Bouchlaghem, N. and Wild, S.
year	1997
title	Planning and estimating in practice and the use of integrated computer models
source	Automation in Construction 7 (1) (1997) pp. 71-76
summary	Research into IT applications in the construction industry has been going on for many years, most of this work took the form of system development aimed at assisting construction practitioners and aimed at improving processes in order to reduce the cost of building. Most of these developments tended to identify a problem in a sector of the industry and focused on using a certain technology in IT to provide a solution. This was often done without a proper investigation into the suitability and the acceptability of the technology to the end users (construction practitioners). Furthermore, most of the work was too focused on solving problems in isolation and did not consider the overall organisational framework and structure of the industry. This paper discusses and presents the results of a survey conducted to investigate the planning and estimating work practices in the industry in order to establish the important issues for the development of an integrated planning and estimating computer model. The survey established the important issues for the acceptability of computer models, the technical aspect to be addressed and a better working practice for estimating and planning. The technical aspect on which the computer model was based is the optimisation of the time and cost of building and the best work practice used is the integration of estimating and planning.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	acadia18_358
id	acadia18_358
authors	Lara Ditzel, Patricio; Balas, Leonard; Kalina, Olga; Vasey, Lauren; Bechert, Simon; Krieg ,Oliver David; Menges, Achim; Knippers, Jan
year	2018
title	Integrative Fabrication of Sandwich Shells. An integrative approach to design of robotically fabricated wood- based sandwich segmented shells
doi	https://doi.org/10.52842/conf.acadia.2018.358
source	ACADIA // 2018: Recalibration. On imprecisionand infidelity. [Proceedings of the 38th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-17729-7] Mexico City, Mexico 18-20 October, 2018, pp. 358-365
summary	This paper presents the development of an integrative and adaptive robotic fabrication process for the production of wooden-based segmented shells of variable thickness. A material and construction process is presented whereby an industrial robot with a two-degree of freedom end-effector acts as active form-work, positioning flexible strips of plywood so they can be assembled into a structurally performative configuration and then filled with a polyurethane expandable foam. The resulting material system is a structurally performative and doubly curved sandwich composite which performs well in bending. This paper discusses the construction process and the material system, methods for structural analysis, an adaptive robotic fabrication process, as well as a computational design tool which integrates material constraints, robotic constraints, and structural performance. The resulting construction system expands the design possibilities for robotic fabrication in wood, particularly as a viable material system for implementation directly in an on-site condition.
keywords	work in progress, fabrication & robotics, materials & adaptive systems
series	ACADIA
type	paper
email
last changed	2022/06/07 07:52

_id	sigradi2009_1107
id	sigradi2009_1107
authors	Lara, Arthur Hunold; Marcelo Eduardo Giacaglia; Norberto Corrêa da Silva Moura
year	2009
title	Teaching digital fabrication in the post-industrial era
source	SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary	The creation process of a product is a work of immersion and concentration, and is, seldom linear. A primary concept most likely will undergo modifications during the process. In what concerns teaching, a great number of Brazilian higher education institutions act exclusively on the formation of students as specialists in the creation of primary concepts. As for the process of refining an idea, as in prototype production and observation, this phase will only be learned and understood on the job market. Nowadays, new methodologies for digital fabrication put into evidence other strategies resulting from post-industrial production.
keywords	Digital fabrication; digital modeling; prototyping; education
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	4c01
authors	Laranjeira, Teresa
year	2003
title	The S. Pedro da Cova Community Knowledge Centre, a local example of empowerment through technology
source	CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary	S. Pedro da Cova (Gondomar), located ten kilometres from the city centre of Porto (Portugal), is considerate a depressed territory, with a large spectrum of social, economic and urban problems, but also with local positive aspects capable to reach the different development opportunities.In the ambit of the regeneration process for this area, the local authority draw a strategy based in the empowerment of the citizens, where the Information Communication Technologies (ICT’s) assumed a major role. With this purpose, it was intended to build a Community Technology Centre for the disfavoured children. From the building construction till the first activities, it is our conviction that to break the differences between the have and the have not’s it will be very important to conciliate the new technologies and the local characteristics. The children will be the active agents in the dissemination of the project through the development of the different activities, sensitising the families to adopt a healthy life and announce situations of risk, for example. To validate the project will be created an permanent observatory that propose a moment of reflection and auto-valuation about the evolution of the different activities, thechanges to do, and the identification of new problems and the redefinition of new methodologies. The aim of the article is not only to show the positive aspects, indeed significant, but also to bring into discussion some questions; in order to understand the possibility of defining an empowerment strategy based in the ICT’s. How to conciliate the individualperspectives of the future into a common objective? How to show to all community that information and knowledge are fundamentalto build a more liveable and equity neighbourhood? How to transfer the results to a larger strategy for the entire city? And, at theend, how to explain that people is the most important "infrastructure" to build a better future?
keywords	Social Exclusion; Informal Urban Structure; Empowerment; Spaces of Knowledge
series	other
email
last changed	2003/03/11 20:39

_id	ea52
authors	Larmore, L.L. and Hirschberg, D. S.
year	1985
title	Efficient Optimal Pagination of Scrolls
source	Communications of the ACM. August 1985. vol. 28: pp. 854-856. includes a short bibliography
summary	Diehr and Faaland developed an algorithm that finds the minimum sum of key length pagination of a scroll of n items, and which uses O(n log n) time solving a problem posed by McCreight. An improved algorithm is given which uses O(n) time
keywords	algorithms, problem solving, search
series	CADline
last changed	2003/06/02 13:58

_id	sigradi2017_092
id	sigradi2017_092
authors	Larqué, Hugo; Barbara Marin, Juan Camilo Silva
year	2017
title	BioRizom. Host Biotransducer based in mycotic rhizome [BioRizom. Host Biotransducer based in mycotic rhizome]
source	SIGraDi 2017 [Proceedings of the 21th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-227-439-5] Chile, Concepción 22 - 24 November 2017, pp.640-643
summary	The growth of urban settlements is a phenomenon on the rise. It is expected that more than 70% of the people will live in urban settlements by 2050. To be able to tackle and embrace this growth, we need alternative tools that help us to face these challenges. On this framework, this proposal aims to raise the paradigm of how the information can be gathered and used to equilibrate urban systems in terms of planning concerning the distribution of resources. To achieve this goal, the exchange of data through an organic system of biochemical interaction network is proposed.
keywords	Smart City; Urban planning; Social Development; Bio-sensor; Internet of Things.
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	407caadria2004
id	407caadria2004
authors	Larry Sass
year	2004
title	Rapid Prototyping Techniques for Building Program Study
doi	https://doi.org/10.52842/conf.caadria.2004.655
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 655-670
summary	This paper is original research that demonstrates new design possibilities for evaluation in the schematic phase of design through the use rapid prototyping as a tool of representation verses 2D drawing. These program shapes are created from CAD files using a threedimensional printing and laser cutting CAM tools. This way of working is in response to two dimensional plan representation and evaluation (Mitchell 1976). This research combines the best of the visual aspects of plan representation and the formal representation of solid block modeling. The models in this paper demonstrate the building’s physical scale of spaces, building use and overall form. Resulting models will demonstrate a new way of designing in CAD one that combined physical and visual ways or representation.
series	CAADRIA
email
last changed	2022/06/07 07:52

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