GreenLight – An open source model for greenhouses with supplemental lighting: Evaluation of heat requirements under LED and HPS lamps

AbstractWe are entering an age of ‘big’ computational neuroscience, in which neural network models are increasing in size and in numbers of underlying data sets. Consolidating the zoo of models into large-scale models simultaneously consistent with a wide range of data is only possible through the effort of large teams, which can be spread across multiple research institutions. To ensure that computational neuroscientists can build on each other’s work, it is important to make models publicly available as well-documented code. This chapter describes such an open-source model, which relates the connectivity structure of all vision-related cortical areas of the macaque monkey with their resting-state dynamics. We give a brief overview of how to use the executable model specification, which employs NEST as simulation engine, and show its runtime scaling. The solutions found serve as an example for organizing the workflow of future models from the raw experimental data to the visualization of the results, expose the challenges, and give guidance for the construction of an ICT infrastructure for neuroscience.

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Comparing an insurer's perspective on building damages with modelled damages from pan-European winter windstorm event sets: a case study from Zurich, Switzerland

Natural Hazards and Earth System Science ◽

10.5194/nhess-21-279-2021 ◽

2021 ◽

Vol 21 (1) ◽

pp. 279-299

Author(s):

Christoph Welker ◽

Thomas Röösli ◽

David N. Bresch

Keyword(s):

Open Source ◽

Return Period ◽

Model Building ◽

Information Service ◽

Source Model ◽

Insurance Companies ◽

Risk Models ◽

Risk Modelling ◽

Modelling Approach

Abstract. With access to claims, insurers have a long tradition of being knowledge leaders on damages caused by windstorms. However, new opportunities have arisen to better assess the risks of winter windstorms in Europe through the availability of historic footprints provided by the Windstorm Information Service (Copernicus WISC). In this study, we compare how modelling of building damages complements claims-based risk assessment. We describe and use two windstorm risk models: an insurer's proprietary model and the open source CLIMADA platform. Both use the historic WISC dataset and a purposefully built, probabilistic hazard event set of winter windstorms across Europe to model building damages in the canton of Zurich, Switzerland. These approaches project a considerably lower estimate for the annual average damage (CHF 1.4 million), compared to claims (CHF 2.3 million), which originates mainly from a different assessment of the return period of the most damaging historic event Lothar–Martin. Additionally, the probabilistic modelling approach allows assessment of rare events, such as a 250-year-return-period windstorm causing CHF 75 million in damages, including an evaluation of the uncertainties. Our study emphasizes the importance of complementing a claims-based perspective with a probabilistic risk modelling approach to better understand windstorm risks. The presented open-source model provides a straightforward entry point for small insurance companies.

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Scientific Authorship and E-commons

Thinking Machines and the Philosophy of Computer Science ◽

10.4018/978-1-61692-014-2.ch012 ◽

2010 ◽

pp. 193-205

Author(s):

Luc Schneider

Keyword(s):

Open Access ◽

Open Source ◽

Scientific Knowledge ◽

Scientific Community ◽

Scientific Literature ◽

Source Model ◽

Public Domain ◽

Scientific Publications ◽

Scientific Authorship ◽

The Web

This contribution tries to assess how the Web is changing the ways in which scientific knowledge is produced, distributed and evaluated, in particular how it is transforming the conventional conception of scientific authorship. After having properly introduced the notions of copyright, public domain and (e-)commons, I will critically assess James Boyle's (2003, 2008) thesis that copyright and scientific (e-) commons are antagonistic, but I will mostly agree with the related claim by Stevan Harnad (2001a,b, 2008) that copyright has become an obstacle to the accessibility of scientific works. I will even go further and argue that Open Access schemes not only solve the problem of the availability of scientific literature, but may also help to tackle the uncontrolled multiplication of scientific publications, since these publishing schemes are based on free public licenses allowing for (acknowledged) re-use of texts. However, the scientific community does not seem to be prepared yet to move towards an Open Source model of authorship, probably due to concerns related to attributing credit and responsability for the expressed hypotheses and results. Some strategies and tools that may encourage a change of academic mentality in favour of a conception of scientific authorship modelled on the Open Source paradigm are discussed.

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Open Source, Crowdsourcing, and Public Engagement

Public Service, Governance and Web 2.0 Technologies - Advances in Web Technologies and Engineering ◽

10.4018/978-1-4666-0071-3.ch012 ◽

2012 ◽

pp. 181-199 ◽

Cited By ~ 2

Author(s):

Helen K. Liu

Keyword(s):

Open Source ◽

Public Engagement ◽

Analytical Framework ◽

Source Model ◽

Public Affairs ◽

Information Selection ◽

The Public ◽

The U.S ◽

Three Components

This chapter is an investigation of open source, crowdsourcing, and public engagement in the public and nonprofit sectors through four cases: (1) Changemakers competitions, (2) Peer to Patent in the U.S., (3) Future Melbourne 2020 in Australia, and (4) Idea Box in Japan. Macintosh’s (2004) case analytical framework is adopted to systematically document the four cases for comparisons. From the literature three components are identified to understand the open source and crowdsourcing models: initiator, mechanism for information selection, and beneficiary. Three components are used to examine how governments or nonprofits adopt the open source model or crowdsourcing model to facilitate public engagement. The conclusion is that different designs of the projects might lead to different scales of public engagement, defined by Savar & Denhardt (2010). Finally, some potential issues and challenges of implementing the open source and crowdsourcing models to facilitate engagement in public affairs are discussed.

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An open-source model of the Western Climate Initiative cap-and-trade programme with supply-demand scenarios to 2030

Climate Policy ◽

10.1080/14693062.2020.1760774 ◽

2020 ◽

Vol 20 (5) ◽

pp. 626-640

Author(s):

Mason Inman ◽

Michael D. Mastrandrea ◽

Danny Cullenward

Keyword(s):

Open Source ◽

Source Model ◽

Cap And Trade

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Trust and Community in Open Source Software Production

Analyse & Kritik ◽

10.1515/auk-2004-0115 ◽

2004 ◽

Vol 26 (1) ◽

Cited By ~ 5

Author(s):

Margit Osterloh ◽

Sandra Rota

Keyword(s):

Open Source ◽

Open Source Software ◽

Extrinsic Motivation ◽

Source Model ◽

Private Ownership ◽

Complex Interplay ◽

Software Production ◽

Innovation Model ◽

The Commons ◽

Low Costs

AbstractOpen source software production is a successful new innovation model which disproves that only private ownership of intellectual property rights fosters innovations. It is analyzed here under which conditions the open source model may be successful in general. We show that a complex interplay of situational, motivational, and institutional factors have to be taken into account to understand how to manage the ‘tragedy of the commons’ as well as the ‘tragedy of the anticommons’. It is argued that the success of this new innovation model is greatly facilitated by a well balanced portfolio of intrinsic and extrinsic motivation, low costs for contributors and governance mechanisms that do not crowd out intrinsic motivation.

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Adoption and Use of Open Source Infrastructure Software by Large Corporations

Journal of Database Management ◽

10.4018/jdm.2015100101 ◽

2015 ◽

Vol 26 (4) ◽

pp. 1-17 ◽

Cited By ~ 2

Author(s):

RadhaKanta Mahapatra ◽

Rashid Manzar ◽

Vikram S. Bhadauria

Keyword(s):

Open Source ◽

Open Source Software ◽

Source Model ◽

Early Adopter ◽

Business Organizations ◽

Adoption Decision ◽

Software Adoption ◽

Continued Use ◽

Large Corporations ◽

Proprietary Product

Adoption and continuance of use of open source infrastructure software by large business organizations is not well understood. This study fills this gap in research by conducting a longitudinal investigation of the adoption and use of MySQL by two large corporations. One organization, an early adopter, adopted and used MySQL for several years before reverting back to a proprietary product. The other, a late adopter, made an initial adoption decision but didn't deploy it in mission critical applications. Interestingly, free software and freedom to access and modify the source code, the hallmark of the open source model, were not found to be significant in promoting adoption. In contrast, high quality maintenance support and timely product enhancement to keep up with user needs were considered critical for initial adoption and continued use of software. The study also demonstrates the need to investigate continuance of use to get a complete picture of open source software adoption and use by organizations.

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Embedded Real-Time Linux for Cable Robot Control

Volume 1: 22nd Computers and Information in Engineering Conference ◽

10.1115/detc2002/cie-34506 ◽

2002 ◽

Cited By ~ 4

Author(s):

Frederick M. Proctor ◽

William P. Shackleford

Keyword(s):

Open Source ◽

Real Time ◽

Open Source Software ◽

Hard Disk Drives ◽

Source Model ◽

Disk Drives ◽

Deterministic Scheduling ◽

Cable Robot ◽

Real Time Computing ◽

Embedded Applications

Linux is a version of the Unix operating system distributed according to the open source model. Programmers are free to adapt the source code for their purposes, but are required to make their modifications or enhancements available as open source software as well. This model has fostered the widespread adoption of Linux for typical Unix server and workstation roles, and also in more arcane applications such as embedded or real-time computing. Embedded applications typically run in small physical and computing footprints, usually without fragile peripherals like hard disk drives. Special configurations are required to support these limited environments. Real-time applications require guarantees that tasks will execute within their deadlines, something not possible in general with the normal Linux scheduler. Real-time extensions to Linux enable deterministic scheduling, at task periods at tens of microseconds. This paper describes embedded and real-time Linux, and an application for distributed control of a Stewart Platform cable robot. Special Linux configuration requirements are detailed, and the architecture for teleoperated control of the cable robot is presented, with emphasis on the resolved-rate control of the suspended platform.

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