Artículos de conferencia

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    Building a geographic data repository for urban research with free software - Learning from Observatorio.Cedeus.cl
    (2017) Steiniger, Stefan; De La Fuente, H.; Fuentes, C.; Barton Jonathan Richard; Muñoz Abogabir, Juan Carlos; CEDEUS (Chile)
    The recent trend towards open data and open science as well as a demand for holistic and interdisciplinary research requires platforms that allow the distribution and exchange of research data, including geographic information. While the requirements and benefits of data exchange are widely discussed, there are few proposals on how to implement data platforms that not only permit the exchange of research data among researchers, but also permit to distribute research results and data to the interest public. We elaborate what points are important for implementing a (geographic) data repository and propose then to adopt the concept of Spatial Data Infrastructures (SDI) as a solution for the implementation of research data repositories. We present as a case study the geographic data and document repository of the Chilean research Centre on Sustainable Urban Development (CEDEUS), the CEDEUS Observatory. Besides the infrastructure to host and distribute data, communication tools are an important component of such a data repository service. For this case study we analyse which things have worked well and which things have not worked well based on the experiences collected during three years of operation. We close with some recommendations for the implementation of data repositories for research.
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    Improving conceptual cost estimating performance
    (2005) Serpell Bley, Alfredo
    Conceptual cost estimates are fundamental inputs for the initial decision-making processes of construction projects. This paper has presented a methodology for assessing the expected accuracy and reliability of conceptual estimates. In doing that, a review of the basic concepts and definition of accuracy and reliability was presented along with a discussion of the importance of this information for decision making. A summary description of current practices demonstrated that there exist some approaches to this problem that are based only on information availability, without taking into account other important qualitative variables. A methodology based on experts' judgments and using the accuracy model was conceptualized. Using this methodology, estimators can have a knowledgeable assessment of the expected accuracy and reliability of a conceptual estimate that can be used for decision making at the conceptual stage of a project and also, to improve this important function
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    Modeling projects\' scopes for conceptual cost estimating
    (2010) Serpell Bley, Alfredo
    The availability of a comprehensive and reliable definition of the scope of a project in its early planning stages is widely recognized by practitioners as a key factor for conceptual cost estimating. In this paper, a project scope modeling methodology based on the effective reutilization of historical projects' scopes and on the application of the case-based reasoning approach (CBR) is proposed. This methodology helps to develop a new project's scope by finding and reusing the most relevant information from historical scopes. The validation of the proposed methodology was carried out through its use in estimating the cost of 17 real construction projects, already constructed, and whose final costs were known. This application of the methodology produced a sufficiently detailed and accurate cost estimate for each project. Also, the scope generated by the methodology allows the estimation of the cost of a new project with an acceptable level of accuracy, and provides a reasonable work breakdown structure that can be used for different planning purposes.
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    The Academic SDI-Towards Understanding Spatial Data Infrastructures for Research and Education
    (Springer, 2017) Coetzee, Serena; Steiniger, Stefan; Köbben, Barend; Iwaniak, Adam; Kaczmarek, Iwona; Rapant, Petr; Cooper, Antony; Behr, Franz-Josef; Schoof, Govert; Katumba, Samy; Vatseva, Rumiana; Sinvula, Kisco; Moellering, Harold; CEDEUS (Chile)
    The demand for geospatial data across different disciplines and organisations has led to the development and implementation of spatial data infrastructures (SDI) and the theory and concepts behind them. An SDI is an evolving concept about facilitating and coordinating the exchange of geospatial data and services between stakeholders from different levels in the spatial data community. Universities and other research organisations typically have well-established libraries and digital catalogues for scientific literature, but catalogues for geospatial data are rare. Geospatial data is widely used in research, but geospatial data produced by researchers is seldom available, accessible and usable, e.g., for purposes of teaching or further research after completion of the project. This chapter describes the experiences of a number of SDI implementations at universities and research institutes. Based on this, the Academic SDI, an SDI for research and education, is defined and its stakeholders are described. The purpose, scope and stakeholders of the Academic SDI are described based on the formal model of an SDI developed by the International Cartographic Association (ICA) Commission on SDIs and Standards (formerly the Commission on Geoinformation Infrastructures and Standards). The results contribute to understanding the state-of-the-art in SDI implementations at universities and research institutes; how the Academic SDI differs from a 'regular' SDI; and which role players need to be involved in a successful SDI implementation for research and education.
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    Characterization of exposures in preschoolers reported to a Chilean Poison Control Center in 2020
    (TAYLOR & FRANCIS LTD, 2023) Sateler Villanueva, Antonia; Bettini Silva, Marli Francesca; Silva Peña, Lorena Alejandra; Medel Jara, Patricio Andres; Iturra Montecinos, Pablo Andres; Figueroa Silva, Francisco Julio Antonio; Irarrazabal Vargas, Lisette Paola; Rios Bustamante, Juan Carlos