Artículos de conferencia

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    TelarKG: a knowledge graph of Chile's constitutional process
    (2024) Angles, Renzo; Calisto, Vicente; Díaz, Javiera; Ferrada, Sebastián; Hogan, Aidan; Pinto, Alexander; Reutter de la Maza, Juan Lorenzo; Rojas, Carlos; Rosales-Méndez, Henry; Sarmiento, Hernán; Toussaint, Etienne; Vrgoc Domagoj
    In this paper we present TelarKG, a knowledge graph (KG) that consolidates multiple sources of information regarding the Chilean Constitutional process, particularly about the work of the members of the Constitutional Convention. TelarKG contains a wide range of public data, such as the materials from the commissions and information about the members' interventions and votes. In addition, the KG has been enriched with online user-generated content including posts from social networks related to the constitutional process, and transcriptions from the YouTube videos of the plenary sessions. Among other features, TelarKG leverages the semantic similarity search capabilities of the MillenniumDB endpoint to compute text similarity among convention members' Twitter messages. Additionally, we employ Entity Linking techniques to identify references to members of the Convention and Parties within these messages. TelarKG constitutes one of the most comprehensive historical archives on a political event, enabling users to query and navigate through diverse aspects of Chile's constitutional process.
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    Can Advanced Work Packaging Become a Lean Method?
    (2023) Sepulveda Solari, Italo Gerald; Alarcón Cárdenas, Luis Fernando; Barkokebas, Beda
    Advanced Work Packaging (AWP) is rapidly becoming a popular methodology to improve efficiency in construction projects. It is an innovative approach to project management that focuses on the planning, organization, and control of construction tasks on the job site is based on the idea that by organizing work effectively and reducing lead times, it is possible to maximize efficiency and productivity in construction. Nevertheless, Lean Construction (LC) practitioners identified significant shortcomings in AWP such as the lack of attention to buffers while arguing that this methodology is not effective in a practical setting. In this context, this research presents a literature review identifying the criticism of LC practitioners to AWP while identifying similarities and possible synergies where both approaches can complement each other to render better results during the delivery of construction projects. This research identifies the implementation of the Last Planner System® (LPS®) as means to address significant AWP shortcomings identified by LC practitioners while taking advantage of AWP’s structured approach to better apply LC concepts. Therefore, the identified synergies and combination of both approaches will contribute to more efficient processes and improvement of construction practices.
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    Regression-Based Inductive Reconstruction of Shell Auxetic Structures
    (2023) Vivanco Larraín, Tomas; Ojeda Valenzuela, Juan Eduardo; Yuan, Philip; Pontificia Universidad Católica de Chile. Escuela de Diseño; Tongji University; Technical University Darmstadt
    This article presents the design process for generating a shell-like structure from an activated bent auxetic surface through an inductive process based on applying deep learning algorithms to predict a numeric value of geometrical features. The process developed under the Material Intelligence Workflow applied to the development of (1) a computational simulation of the mechanical and physical behaviour of an activated auxetic surface, (2) the generation of a geometrical dataset composed of six geometric features with 3,000 values each, (3) the construction and training of a regression Deep Neuronal Network (DNN) model, (4) the prediction of the geometric feature of the auxetic surface's pattern distance, and (5) the reconstruction of a new shell based on the predicted value. This process consistently reduces the computational power and simulation time to produce digital prototypes by integrating AI-based algorithms into material computation design processes.
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    Temporal specification of business processes through project planning tools
    (2011) Flores, Camilo; Sepúlveda Fernández, Marcos Ernesto
    Business Process Management has gained importance within organizations due to the need to streamline their operations. Nevertheless, despite the existence of process modeling standards such as BPMN, nowadays it is difficult to specify complex temporal constraints and relationships among tasks of a given process, which prevents the specification and subsequent automation of processes where these restrictions are relevant. To solve the exposed difficulty, we have resorted to the project planning and management field, developing a BPMN equivalency of all temporal constraints and relationships that can be specified in a standard project planning tool: Microsoft Project. This not only enables a simple interface for specifying complex temporal restrictions in business processes, but also defines an execution semantic for the models developed in the field of project planning, allowing their later automation through process execution engines
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    Nearshore bathymetric inversion from video using a fully non-linear Boussinesq wave model
    (2011) Cienfuegos Carrasco, Rodrigo Alberto; Almar, R.; Birrien, F.; Castelle, B.; Catalán, P.; Michallet, H.
    This paper presents a new depth inversion methodology from video imagery. The strength of the method is the use of a fully non-linear Boussinesq wave model in combination with a very complete video-derived laboratory wave observation that includes period, celerity and wave height. Compared to the previous use of wave dispersion formulas, here the better description of wave dynamics substantially improves bathymetry estimation. For the considered laboratory case, error on bathymetry is as small as 8 % whereas other formulations, shallow water or non-linear derived solution can only attain 24 % and 14 %, respectively. More in-depth analysis on the error shows a fair sensitivity on video-derived breaker height and describes the large contribution of non-linearities. The recent possibility of using Serre's dispersion relation in combination with video-derived wave height provides a reasonable performance and should be further envisaged for one-dimensional depth inversion. Future extensions of this work involve the use of a two-dimensional Boussinesq model to include more hydrodynamics processes such as wave-driven circulation over three-dimensional surfzone sandbars.