@article{Knecht, author = {Knecht, Katja}, title = {Augmented Urban Model: Ein Tangible User Interface zur Unterst{\"u}tzung von Stadtplanungsprozessen}, doi = {10.25643/bauhaus-universitaet.2674}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160823-26740}, abstract = {Im architektonischen und st{\"a}dtebaulichen Kontext erf{\"u}llen physische und digitale Modelle aufgrund ihrer weitgehend komplement{\"a}ren Eigenschaften und Qualit{\"a}ten unterschiedliche, nicht verkn{\"u}pfte Aufgaben und Funktionen im Entwurfs- und Planungsprozess. W{\"a}hrend physische Modelle vor allem als Darstellungs- und Kommunikationsmittel aber auch als Arbeitswerkzeug genutzt werden, unterst{\"u}tzen digitale Modelle dar{\"u}ber hinaus die Evaluation eines Entwurfs durch computergest{\"u}tzte Analyse- und Simulationstechniken. Analysiert wurden im Rahmen der in diesem Arbeitspapier vorgestellten Arbeit neben dem Einsatz des Modells als analogem und digitalem Werkzeug im Entwurf die Bedeutung des Modells f{\"u}r den Arbeitsprozess sowie Vorbilder aus dem Bereich der Tangible User Interfaces mit Bezug zu Architek¬tur und St{\"a}dtebau. Aus diesen Betrachtungen heraus wurde ein Prototyp entwickelt, das Augmented Urban Model, das unter anderem auf den fr{\"u}hen Projekten und Forschungsans{\"a}tzen aus dem Gebiet der Tangible User Interfaces aufsetzt, wie dem metaDESK von Ullmer und Ishii und dem Urban Planning Tool Urp von Underkoffler und Ishii. Das Augmented Urban Model zielt darauf ab, die im aktuellen Entwurfs- und Planungsprozess fehlende Br{\"u}cke zwischen realen und digitalen Modellwelten zu schlagen und gleichzeitig eine neue tangible Benutzerschnittstelle zu schaffen, welche die Manipulation von und die Interaktion mit digitalen Daten im realen Raum erm{\"o}glicht.}, subject = {tangible user interface}, language = {de} } @article{KoehlerKoenig, author = {K{\"o}hler, Hermann and K{\"o}nig, Reinhard}, title = {Aktionsr{\"a}ume in Dresden}, doi = {10.25643/bauhaus-universitaet.2672}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160822-26726}, abstract = {In vorliegender Studie werden die Aktionsr{\"a}ume von Befragten in Dresden {\"u}ber eine standardisierte Befragung (n=360) untersucht. Die den Aktionsr{\"a}umen zugrundeliegenden Aktivit{\"a}ten werden unterschieden in Einkaufen f{\"u}r den t{\"a}glichen Bedarf, Ausgehen (z.B. in Caf{\´e}, Kneipe, Gastst{\"a}tte), Erholung im Freien (z.B. spazieren gehen, Nutzung von Gr{\"u}nanlagen) und private Geselligkeit (z.B. Feiern, Besuch von Verwandten/Freunden). Der Aktionsradius wird unterschieden in Wohnviertel, Nachbarviertel und sonstiges weiteres Stadtgebiet. Um aus den vier betrachteten Aktivit{\"a}ten einen umfassenden Kennwert f{\"u}r den durchschnittlichen Aktionsradius eines Befragten zu bilden, wird ein Modell f{\"u}r den Kennwert eines Aktionsradius entwickelt. Die Studie kommt zu dem Ergebnis, dass das Alter der Befragten einen signifikanten - wenn auch geringen - Einfluss auf den Aktionsradius hat. Das Haushaltsnettoeinkommen hat einen mit Einschr{\"a}nkung signifikanten, ebenfalls geringen Einfluss auf allt{\"a}gliche Aktivit{\"a}ten der Befragten.}, subject = {Aktionsraumforschung}, language = {de} } @article{Koehler, author = {K{\"o}hler, Hermann}, title = {Ergebnisse der Befragung zu Wohnstandortpr{\"a}ferenzen von Lebensweltsegmenten in Dresden}, doi = {10.25643/bauhaus-universitaet.2670}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160822-26704}, abstract = {In vorliegender Studie werden die Wohnstandortpr{\"a}ferenzen der Sinus-Milieugruppen in Dresden {\"u}ber eine standardisierte Befragung (n=318) untersucht. Es wird unterschieden zwischen handlungsleitenden Wohnstandortpr{\"a}ferenzen, die durch Anhaltspunkte auf der Handlungsebene st{\"a}rker in Betracht gezogen werden sollten, und Wohnstandortpr{\"a}ferenzen, welche eher orientierenden Charakter haben. Die Wohnstandortpr{\"a}ferenzen werden untersucht anhand der Kategorien Ausstattung/Zustand der Wohnung/des n{\"a}heren Wohnumfeldes, Versorgungsstruktur, soziales Umfeld, Baustrukturtyp, Ortsgebundenheit sowie des Aspektes des Images eines Stadtviertels. Um die Befragten den Sinus-Milieugruppen zuordnen zu k{\"o}nnen, wird ein Lebensweltsegment-Modell entwickelt, welches den Anspruch hat, die Sinus-Milieugruppen in der Tendenz abzubilden. Die Studie kommt zu dem Ergebnis, dass die Angeh{\"o}rigen der verschiedenen Lebensweltsegmente in jeder Kategorie - wenn auch z.T. auf geringerem Niveau - signifikante Unterschiede in der Bewertung einzelner Wohnstandortpr{\"a}ferenzen aufweisen.}, subject = {Milieuforschung}, language = {de} } @article{TonnTatarin, author = {Tonn, Christian and Tatarin, Ren{\´e}}, title = {Volumen Rendering in der Architektur: {\"U}berlagerung und Kombination von 3D Voxel Volumendaten mit 3D Geb{\"a}udemodellen}, doi = {10.25643/bauhaus-universitaet.2671}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160822-26718}, abstract = {Volumerendering ist eine Darstellungstechnik, um verschiedene r{\"a}umliche Mess- und Simulationsdaten anschaulich, interaktiv grafisch darzustellen. Im folgenden Beitrag wird ein Verfahren vorgestellt, mehrere Volumendaten mit einem Architekturfl{\"a}chenmodell zu {\"u}berlagern. Diese komplexe Darstellungsberechnung findet mit hardwarebeschleunigten Shadern auf der Grafikkarte statt. Im Beitrag wird hierzu der implementierte Softwareprototyp "VolumeRendering" vorgestellt. Neben dem interaktiven Berechnungsverfahren wurde ebenso Wert auf eine nutzerfreundliche Bedienung gelegt. Das Ziel bestand darin, eine einfache Bewertung der Volumendaten durch Fachplaner zu erm{\"o}glichen. Durch die {\"U}berlagerung, z. B. verschiedener Messverfahren mit einem Fl{\"a}chenmodell, ergeben sich Synergien und neue Auswertungsm{\"o}glichkeiten. Abschließend wird anhand von Beispielen aus einem interdisziplin{\"a}ren Forschungsprojekt die Anwendung des Softwareprototyps illustriert.}, subject = {Multiple Volume Rendering}, language = {de} } @article{Kalisch, author = {Kalisch, Dominik}, title = {Wissen wer wo wohnt}, doi = {10.25643/bauhaus-universitaet.2669}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160822-26695}, abstract = {In cities people live together in neighbourhoods. Here they can find the infrastructure they need, starting with shops for the daily purpose to the life-cycle based infrastructures like kindergartens or nursing homes. But not all neighbourhoods are identical. The infrastructure mixture varies from neighbourhood to neighbourhood, but different people have different needs which can change e.g. based on the life cycle situation or their affiliation to a specific milieu. We can assume that a person or family tries to settle in a specific neighbourhood that satisfies their needs. So, if the residents are happy with a neighbourhood, we can further assume that this neighbourhood satisfies their needs. The socio-oeconomic panel (SOEP) of the German Institute for Economy (DIW) is a survey that investigates the economic structure of the German population. Every four years one part of this survey includes questions about what infrastructures can be found in the respondents neighbourhood and the satisfaction of the respondent with their neighbourhood. Further, it is possible to add a milieu estimation for each respondent or household. This gives us the possibility to analyse the typical neighbourhoods in German cities as well as the infrastructure profiles of the different milieus. Therefore, we take the environment variables from the dataset and recode them into a binary variable - whether an infrastructure is available or not. According to Faust (2005), these sets can also be understood, as a network of actors in a neighbourhood, which share two, three or more infrastructures. Like these networks, this neighbourhood network can also be visualized as a bipartite affiliation network and therefore analysed using correspondence analysis. We will show how a neighbourhood analysis will benefit from an upstream correspondence analysis and how this could be done. We will also present and discuss the results of such an analysis.}, subject = {urban planning}, language = {de} } @article{HahlbrockBraunHeideletal., author = {Hahlbrock, David and Braun, Michael and Heidel, Robin and Lemmen, Patrik and Boumann, Roland and Bruckmann, Tobias and Schramm, Dieter and Helm, Volker and Willmann, Jan}, title = {Cable Robotic 3D-printing: additive manufacturing on the construction site}, series = {Construction Robotics}, volume = {2022}, journal = {Construction Robotics}, publisher = {Springer International Publishing}, address = {Cham}, doi = {10.1007/s41693-022-00082-3}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230124-48791}, pages = {1 -- 14}, abstract = {This paper outlines an important step in characterizing a novel field of robotic construction research where a cable-driven parallel robot is used to extrude cementitious material in three-dimensional space, and thus offering a comprehensive new approach to computational design and construction, and to robotic fabrication at larger scales. Developed by the Faculty of Art and Design at Bauhaus-University Weimar (Germany), the faculty of Architecture at the University of Applied Sciences Dortmund (Germany) and the Chair of Mechatronics at the University of Duisburg-Essen (Germany), this approach offers unique advantages over existing additive manufacturing methods: the system is easily transportable and scalable, it does not require additional formwork or scaffolding, and it offers digital integration and informational oversight across the entire design and building process. This paper considers 1) key research components of cable robotic 3D-printing (such as computational design, material exploration, and robotic control), and 2) the integration of these parameters into a unified design and building process. The demonstration of the approach at full-scale is of particular concern.}, subject = {Robotik}, language = {en} } @article{Stadler, author = {Stadler, Max}, title = {Gr{\"u}nderzeit. Hightech und Alternativen der Wissenschaft in West-Berlin}, series = {NTM Zeitschrift f{\"u}r Geschichte der Wissenschaften, Technik und Medizin}, volume = {2022}, journal = {NTM Zeitschrift f{\"u}r Geschichte der Wissenschaften, Technik und Medizin}, number = {30 (2022)}, publisher = {Basel}, address = {Birkh{\"a}user}, doi = {10.1007/s00048-022-00352-9}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230124-48800}, pages = {599 -- 632}, abstract = {Zu den diversen Unternehmungen sozialbewegter „Gegenwissenschaft", die um 1980 auf der Bildfl{\"a}che der BRD erschienen, z{\"a}hlte der 1982 gegr{\"u}ndete Berliner Wissenschaftsladen e. V., kurz WILAB - eine Art „alternatives" Spin-off der Technischen Universit{\"a}t Berlin. Der vorliegende Beitrag situiert die Ausgr{\"u}ndung des „Ladens" im Kontext zeitgen{\"o}ssischer Fortschritte der (regionalen) Forschungs- und Technologiepolitik. Gezeigt wird, wie der deindustrialisierenden Inselstadt, qua „innovationspolitischer" Gegensteuerung, dabei sogar eine gewisse Vorreiterrolle zukam: {\"u}ber die Stadtgrenzen hinaus sichtbare Neuerungen wie die Gr{\"u}ndermesse BIG TECH oder das 1983 er{\"o}ffnete Berliner Innovations- und Gr{\"u}nderzentrum (BIG), der erste „Incubator" [sic] der BRD, etwa gingen auf das Konto der 1977/78 lancierten Technologie-Transferstelle der TU Berlin, TU-transfer. Anders gesagt: tendenziell bekam man es hier nun mit Verh{\"a}ltnissen zu tun, die immer weniger mit den Tr{\"a}umen einer „kritischen", nicht-fremdbestimmten (Gegen‑)Wissenschaft kompatibel waren. Latent kontr{\"a}r zur historiographischen Prominenz des wissenschaftskritischen Zeitgeists fristeten „alternativen" Zielsetzungen verpflichtete Unternehmungen wie „WILAB" ein relativ marginalisiertes Nischendasein. Dennoch wirft das am WILAB verfolgte, so gesehen wenig aussichtsreiche Anliegen, eine andere, n{\"a}mlich „humanere" Informationstechnologie in die Wege zu leiten, ein instruktives Licht auf die Aufbr{\"u}che „unternehmerischer" Wissenschaft in der BRD um 1980.}, subject = {Berlin }, language = {de} } @article{KnechtKoenig, author = {Knecht, Katja and K{\"o}nig, Reinhard}, title = {Automatische Grundst{\"u}cksumlegung mithilfe von Unterteilungsalgorithmen und typenbasierte Generierung von Stadtstrukturen}, doi = {10.25643/bauhaus-universitaet.2673}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160822-26730}, abstract = {Dieses Arbeitspapier beschreibt, wie ausgehend von einem vorhandenen Straßennetzwerk Bebauungsareale mithilfe von Unterteilungsalgorithmen automatisch umgelegt, d.h. in Grundst{\"u}cke unterteilt, und anschließend auf Basis verschiedener st{\"a}dtebaulicher Typen bebaut werden k{\"o}nnen. Die Unterteilung von Bebauungsarealen und die Generierung von Bebauungsstrukturen unterliegen dabei bestimmten stadtplanerischen Einschr{\"a}nkungen, Vorgaben und Parametern. Ziel ist es aus den dargestellten Untersuchungen heraus ein Vorschlagssystem f{\"u}r stadtplanerische Entw{\"u}rfe zu entwickeln, das anhand der Umsetzung eines ersten Softwareprototyps zur Generierung von Stadtstrukturen weiter diskutiert wird.}, subject = {Automatisierung}, language = {de} } @article{Koenig, author = {K{\"o}nig, Reinhard}, title = {Computers in the design phase - Ten thesis on their uselessness}, series = {Der Generalist}, journal = {Der Generalist}, doi = {10.25643/bauhaus-universitaet.2607}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26075}, abstract = {At the end of the 1960s, architects at various universities world- wide began to explore the potential of computer technology for their profession. With the decline in prices for PCs in the 1990s and the development of various computer-aided architectural design systems (CAAD), the use of such systems in architectural and planning offices grew continuously. Because today no ar- chitectural office manages without a costly CAAD system and because intensive soſtware training has become an integral part of a university education, the question arises about what influence the various computer systems have had on the design process forming the core of architectural practice. The text at hand devel- ops ten theses about why there has been no success to this day in introducing computers such that new qualitative possibilities for design result. RESTRICTEDNESS}, subject = {CAD}, language = {en} } @article{KoenigStandfestSchmitt, author = {K{\"o}nig, Reinhard and Standfest, Matthias and Schmitt, Gerhard}, title = {Evolutionary multi-criteria optimization for building layout planning: Exemplary application based on the PSSA framework}, series = {32nd eCAADe Conference - Volume 2}, journal = {32nd eCAADe Conference - Volume 2}, editor = {Thompson, Emine Mine}, doi = {10.25643/bauhaus-universitaet.2513}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160121-25139}, pages = {567 -- 574}, abstract = {When working on urban planning projects there are usually multiple aspects to consider. Often these aspects are contradictory and it is not possible to choose one over the other; instead, they each need to be fulfilled as well as possible. Planners typically draw on past experience when subjectively prioritising which aspects to consider with which degree of importance for their planning concepts. This practice, although understandable, places power and authority in the hands of people who have varying degrees of expertise, which means that the best possible solution is not always found, because it is either not sought or the problem is regarded as being too complex for human capabilities. To improve this situation, the project presented here shows the potential of multi-criteria optimisation algorithms using the example of a new housing layout for an urban block. In addition it is shown, how Self-Organizing-Maps can be used to visualise multi-dimensional solution spaces in an easy analysable and comprehensible form.}, subject = {Architektur}, language = {en} } @article{KleinKoenig, author = {Klein, Bernhard and K{\"o}nig, Reinhard}, title = {Computational Urban Planning: Using the Value Lab as Control Center}, series = {FCL Magazine, Special Issue Simulation Platform}, journal = {FCL Magazine, Special Issue Simulation Platform}, doi = {10.25643/bauhaus-universitaet.2601}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26011}, pages = {38 -- 45}, abstract = {Urban planning involves many aspects and various disciplines, demanding an asynchronous planning approach. The level of complexity rises with each aspect to be considered and makes it difficult to find universally satisfactory solutions. To improve this situation we propose a new approach, which complement traditional design methods with a computational urban plan- ning method that can fulfil formalizable design requirements automatically. Based on this approach we present a design space exploration framework for complex urban planning projects. For a better understanding of the idea of design space exploration, we introduce the concept of a digital scout which guides planners through the design space and assists them in their creative explorations. The scout can support planners during manual design by informing them about potential im- pacts or by suggesting different solutions that fulfill predefined quality requirements. The planner can change flexibly between a manually controlled and a completely automated design process. The developed system is presented using an exemplary urban planning scenario on two levels from the street layout to the placement of building volumes. Based on Self-Organizing Maps we implemented a method which makes it possible to visualize the multi-dimensional solution space in an easily analysable and comprehensible form.}, subject = {Stadtgestaltung}, language = {en} } @article{Koenig, author = {K{\"o}nig, Reinhard}, title = {Die Stadt der Agenten und Automaten}, series = {FORUM - Architektur \& Bauforum}, journal = {FORUM - Architektur \& Bauforum}, doi = {10.25643/bauhaus-universitaet.2608}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26083}, abstract = {PLANUNGSUNTERST{\"U}TZUNG DURCH DIE ANALYSE R{\"A}UMLICHER PROZESSE MITTELS COMPUTERSIMULATIONEN. Erst wenn man - zumindest im Prinzip - versteht, wie eine Stadt mit ihren komplexen, verwobenen Vorg{\"a}ngen im Wesentlichen funktioniert, ist eine sinnvolle Stadtplanung m{\"o}glich. Denn jede Planung bedeutet einen Eingriff in den komplexen Organismus einer Stadt. Findet dieser Eingriff ohne Wissen {\"u}ber die Funktionsweise des Organismus statt, k{\"o}nnen auch die Auswirkungen nicht abgesch{\"a}tzt werden. Dieser Beitrag stellt dar, wie urbane Prozesse mittels Computersimulationen unter Zuhilfenahme so genannter Multi-Agenten-Systeme und Zellul{\"a}rer Automaten verstanden werden k{\"o}nnen. von}, subject = {CAD}, language = {de} } @article{TreyerKleinKoenigetal., author = {Treyer, Lukas and Klein, Bernhard and K{\"o}nig, Reinhard and Meixner, Christine}, title = {Lightweight Urban Computation Interchange (LUCI): A System to Couple Heterogenous Simulations and Views}, series = {Spatial Information Research}, journal = {Spatial Information Research}, doi = {10.25643/bauhaus-universitaet.2603}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160622-26037}, pages = {1 -- 12}, abstract = {In this paper we introduce LUCI, a Lightweight Urban Calculation Interchange system, designed to bring the advantages of calculation and content co-ordination system to small planning and design groups by the means of an open source middle-ware. The middle-ware focuses on problems typical to urban planning and therefore features a geo-data repository as well as a job runtime administration, to coordinate simulation models and its multiple views. The described system architecture is accompanied by two exemplary use cases, that have been used to test and further develop our concepts and implementations.}, language = {en} } @article{KoenigBauriedel, author = {K{\"o}nig, Reinhard and Bauriedel, Christian}, title = {Generating settlement structures: a method for urban planning and analysis supported by cellular automata}, series = {Environment and Planning B: Planning and Design}, journal = {Environment and Planning B: Planning and Design}, doi = {10.25643/bauhaus-universitaet.2605}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20160624-26054}, pages = {602 -- 624}, abstract = {Previous models for the explanation of settlement processes pay little attention to the interactions between settlement spreading and road networks. On the basis of a dielectric breakdown model in combination with cellular automata, we present a method to steer precisely the generation of settlement structures with regard to their global and local density as well as the size and number of forming clusters. The resulting structures depend on the logic of how the dependence of the settlements and the road network is implemented to the simulation model. After analysing the state of the art we begin with a discussion of the mutual dependence of roads and land development. Next, we elaborate a model that permits the precise control of permeability in the developing structure as well as the settlement density, using the fewest necessary control parameters. On the basis of different characteristic values, possible settlement structures are analysed and compared with each other. Finally, we reflect on the theoretical contribution of the model with regard to the context of urban dynamics.}, language = {en} } @article{BimberIwai2009, author = {Bimber, Oliver and Iwai, Daisuke}, title = {Superimposing Dynamic Range}, series = {Eurographics 2009}, journal = {Eurographics 2009}, doi = {10.25643/bauhaus-universitaet.1532}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20120130-15325}, year = {2009}, abstract = {Replacing a uniform illumination by a high-frequent illumination enhances the contrast of observed and captured images. We modulate spatially and temporally multiplexed (projected) light with reflective or transmissive matter to achieve high dynamic range visualizations of radiological images on printed paper or ePaper, and to boost the optical contrast of images viewed or imaged with light microscopes.}, subject = {CGI }, language = {en} } @article{SoebkeLueck, author = {S{\"o}bke, Heinrich and L{\"u}ck, Andrea}, title = {Framing Algorithm-Driven Development of Sets of Objectives Using Elementary Interactions}, series = {Applied System Innovation}, volume = {2022}, journal = {Applied System Innovation}, number = {Volume 5, issue 3, article 49}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/asi5030049}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220713-46624}, pages = {1 -- 20}, abstract = {Multi-criteria decision analysis (MCDA) is an established methodology to support the decision-making of multi-objective problems. For conducting an MCDA, in most cases, a set of objectives (SOO) is required, which consists of a hierarchical structure comprised of objectives, criteria, and indicators. The development of an SOO is usually based on moderated development processes requiring high organizational and cognitive effort from all stakeholders involved. This article proposes elementary interactions as a key paradigm of an algorithm-driven development process for an SOO that requires little moderation efforts. Elementary interactions are self-contained information requests that may be answered with little cognitive effort. The pairwise comparison of elements in the well-known analytical hierarchical process (AHP) is an example of an elementary interaction. Each elementary interaction in the development process presented contributes to the stepwise development of an SOO. Based on the hypothesis that an SOO may be developed exclusively using elementary interactions (EIs), a concept for a multi-user platform is proposed. Essential components of the platform are a Model Aggregator, an Elementary Interaction Stream Generator, a Participant Manager, and a Discussion Forum. While the latter component serves the professional exchange of the participants, the first three components are intended to be automatable by algorithms. The platform concept proposed has been evaluated partly in an explorative validation study demonstrating the general functionality of the algorithms outlined. In summary, the platform concept suggested demonstrates the potential to ease SOO development processes as the platform concept does not restrict the application domain; it is intended to work with little administration moderation efforts, and it supports the further development of an existing SOO in the event of changes in external conditions. The algorithm-driven development of SOOs proposed in this article may ease the development of MCDA applications and, thus, may have a positive effect on the spread of MCDA applications.}, subject = {Multikriteria-Entscheidung}, language = {en} } @article{Koenig, author = {K{\"o}nig, Reinhard}, title = {Interview on Information Architecture}, series = {Swiss Architecture in the Moving Image}, journal = {Swiss Architecture in the Moving Image}, doi = {10.25643/bauhaus-universitaet.2507}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180422-25078}, pages = {151 -- 154}, abstract = {Interview on Information Architecture}, subject = {Architektur}, language = {en} } @article{MosaviHosseiniImaniZalzaretal., author = {Mosavi, Amir and Hosseini Imani, Mahmood and Zalzar, Shaghayegh and Shamshirband, Shahaboddin}, title = {Strategic Behavior of Retailers for Risk Reduction and Profit Increment via Distributed Generators and Demand Response Programs}, series = {Energies}, volume = {2018}, journal = {Energies}, number = {11, 6}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/en11061602}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180628-37546}, pages = {24}, abstract = {Following restructuring of power industry, electricity supply to end-use customers has undergone fundamental changes. In the restructured power system, some of the responsibilities of the vertically integrated distribution companies have been assigned to network managers and retailers. Under the new situation, retailers are in charge of providing electrical energy to electricity consumers who have already signed contract with them. Retailers usually provide the required energy at a variable price, from wholesale electricity markets, forward contracts with energy producers, or distributed energy generators, and sell it at a fixed retail price to its clients. Different strategies are implemented by retailers to reduce the potential financial losses and risks associated with the uncertain nature of wholesale spot electricity market prices and electrical load of the consumers. In this paper, the strategic behavior of retailers in implementing forward contracts, distributed energy sources, and demand-response programs with the aim of increasing their profit and reducing their risk, while keeping their retail prices as low as possible, is investigated. For this purpose, risk management problem of the retailer companies collaborating with wholesale electricity markets, is modeled through bi-level programming approach and a comprehensive framework for retail electricity pricing, considering customers' constraints, is provided in this paper. In the first level of the proposed bi-level optimization problem, the retailer maximizes its expected profit for a given risk level of profit variability, while in the second level, the customers minimize their consumption costs. The proposed programming problem is modeled as Mixed Integer programming (MIP) problem and can be efficiently solved using available commercial solvers. The simulation results on a test case approve the effectiveness of the proposed demand-response program based on dynamic pricing approach on reducing the retailer's risk and increasing its profit. In this paper, the decision-making problem of the retailers under dynamic pricing approach for demand response integration have been investigated. The retailer was supposed to rely on forward contracts, DGs, and spot electricity market to supply the required active and reactive power of its customers. To verify the effectiveness of the proposed model, four schemes for retailer's scheduling problem are considered and the resulted profit under each scheme are analyzed and compared. The simulation results on a test case indicate that providing more options for the retailer to buy the required power of its customers and increase its flexibility in buying energy from spot electricity market reduces the retailers' risk and increases its profit. From the customers' perspective also the retailers'accesstodifferentpowersupplysourcesmayleadtoareductionintheretailelectricityprices. Since the retailer would be able to decrease its electricity selling price to the customers without losing its profitability, with the aim of attracting more customers. Inthiswork,theconditionalvalueatrisk(CVaR)measureisusedforconsideringandquantifying riskinthedecision-makingproblems. Amongallthepossibleoptioninfrontoftheretailertooptimize its profit and risk, demand response programs are the most beneficial option for both retailer and its customers. The simulation results on the case study prove that implementing dynamic pricing approach on retail electricity prices to integrate demand response programs can successfully provoke customers to shift their flexible demand from peak-load hours to mid-load and low-load hours. Comparing the simulation results of the third and fourth schemes evidences the impact of DRPs and customers' load shifting on the reduction of retailer's risk, as well as the reduction of retailer's payment to contract holders, DG owners, and spot electricity market. Furthermore, the numerical results imply on the potential of reducing average retail prices up to 8\%, under demand response activation. Consequently, it provides a win-win solution for both retailer and its customers.}, subject = {Risikomanagement}, language = {en} } @article{GhazvineiDarvishiMosavietal., author = {Ghazvinei, Pezhman Taherei and Darvishi, Hossein Hassanpour and Mosavi, Amir and Yusof, Khamaruzaman bin Wan and Alizamir, Meysam and Shamshirband, Shahaboddin and Chau, Kwok-Wing}, title = {Sugarcane growth prediction based on meteorological parameters using extreme learning machine and artificial neural network}, series = {Engineering Applications of Computational Fluid Mechanics}, volume = {2018}, journal = {Engineering Applications of Computational Fluid Mechanics}, number = {12,1}, publisher = {Taylor \& Francis}, doi = {10.1080/19942060.2018.1526119}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20181017-38129}, pages = {738 -- 749}, abstract = {Management strategies for sustainable sugarcane production need to deal with the increasing complexity and variability of the whole sugar system. Moreover, they need to accommodate the multiple goals of different industry sectors and the wider community. Traditional disciplinary approaches are unable to provide integrated management solutions, and an approach based on whole systems analysis is essential to bring about beneficial change to industry and the community. The application of this approach to water management, environmental management and cane supply management is outlined, where the literature indicates that the application of extreme learning machine (ELM) has never been explored in this realm. Consequently, the leading objective of the current research was set to filling this gap by applying ELM to launch swift and accurate model for crop production data-driven. The key learning has been the need for innovation both in the technical aspects of system function underpinned by modelling of sugarcane growth. Therefore, the current study is an attempt to establish an integrate model using ELM to predict the concluding growth amount of sugarcane. Prediction results were evaluated and further compared with artificial neural network (ANN) and genetic programming models. Accuracy of the ELM model is calculated using the statistics indicators of Root Means Square Error (RMSE), Pearson Coefficient (r), and Coefficient of Determination (R2) with promising results of 0.8, 0.47, and 0.89, respectively. The results also show better generalization ability in addition to faster learning curve. Thus, proficiency of the ELM for supplementary work on advancement of prediction model for sugarcane growth was approved with promising results.}, subject = {K{\"u}nstliche Intelligenz}, language = {en} } @article{FaizollahzadehArdabiliNajafiAlizamiretal., author = {Faizollahzadeh Ardabili, Sina and Najafi, Bahman and Alizamir, Meysam and Mosavi, Amir and Shamshirband, Shahaboddin and Rabczuk, Timon}, title = {Using SVM-RSM and ELM-RSM Approaches for Optimizing the Production Process of Methyl and Ethyl Esters}, series = {Energies}, journal = {Energies}, number = {11, 2889}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/en11112889}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20181025-38170}, pages = {1 -- 20}, abstract = {The production of a desired product needs an effective use of the experimental model. The present study proposes an extreme learning machine (ELM) and a support vector machine (SVM) integrated with the response surface methodology (RSM) to solve the complexity in optimization and prediction of the ethyl ester and methyl ester production process. The novel hybrid models of ELM-RSM and ELM-SVM are further used as a case study to estimate the yield of methyl and ethyl esters through a trans-esterification process from waste cooking oil (WCO) based on American Society for Testing and Materials (ASTM) standards. The results of the prediction phase were also compared with artificial neural networks (ANNs) and adaptive neuro-fuzzy inference system (ANFIS), which were recently developed by the second author of this study. Based on the results, an ELM with a correlation coefficient of 0.9815 and 0.9863 for methyl and ethyl esters, respectively, had a high estimation capability compared with that for SVM, ANNs, and ANFIS. Accordingly, the maximum production yield was obtained in the case of using ELM-RSM of 96.86\% for ethyl ester at a temperature of 68.48 °C, a catalyst value of 1.15 wt. \%, mixing intensity of 650.07 rpm, and an alcohol to oil molar ratio (A/O) of 5.77; for methyl ester, the production yield was 98.46\% at a temperature of 67.62 °C, a catalyst value of 1.1 wt. \%, mixing intensity of 709.42 rpm, and an A/O of 6.09. Therefore, ELM-RSM increased the production yield by 3.6\% for ethyl ester and 3.1\% for methyl ester, compared with those for the experimental data.}, subject = {Biodiesel}, language = {en} }