Facultad de Ciencias Físicas y Matemáticas
Recent Submissions
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An efficient algorithm for approximated self-similarity joins in metric spaces
(Elsevier, 2020)Similarity join is a key operation in metric databases. It retrieves all pairs of elements that are similar. Solving such a problem usually requires comparing every pair of objects of the datasets, even when indexing and ... -
A family portrait of disk inner rims around Herbig Ae/Be stars. Hunting for warps, rings, self shadowing, and misalignments in the inner astronomical units
(EDP Sciences, 2020)Context. The innermost astronomical unit (au) in protoplanetary disks is a key region for stellar and planet formation, as exoplanet searches have shown a large occurrence of close-in planets that are located within the ... -
Colouring exact distance graphs of chordal graphs
(Elsevier, 2020)For a graph G = (V, E) and positive integer p, the exact distance-p graph G([hp]) is the graph with vertex set V and with an edge between vertices x and y if and only if x and y have distance p. Recently, there has been ... -
Chaotic motion of localized structures
(Amer Physical Soc, 2020)Mobility properties of spatially localized structures arising from chaotic but deterministic forcing of the bistable Swift-Hohenberg equation are studied and compared with the corresponding results when the chaotic forcing ... -
Selección y asignación de equipos de carguío para el cumplimiento de un plan de producción en minería a cielo abierto por medio de una metodología de simulación y optimización
(Universidad de Chile, 2019)La minería a cielo abierto es un proceso intensivo en recursos y equipos. La decisión de qué equipo utilizar, cuántos comprar y d\'onde deben operar tiene un fuerte impacto en el valor del negocio. En las operaciones ... -
Predicción de velocidad en una autopista urbana utilizando estados de tráfico y modelos de inteligencia artificial
(Universidad de Chile, 2019)Cada día millones de Santiaguinos se desplazan a sus respectivos trabajos y estudios, en donde miles de ellos utilizan la autopista central, la autopista concesionada mas grande de la región como la vía de transporte para ... -
Achieving transparency in public decision making processes via verifiable Randomness
(Universidad de Chile, 2019)This work is motivated by providing accountability to public institutions using creative and practical new combinations of cryptographic and technological tools. The need for accountability arises from multiple fronts on ... -
Bayesian identification of electromechanical properties in piezoelectric energy harvesters
(Elsevier, 2020)The model updating of the electro-mechanical properties of Piezoelectric Energy Harvesters (PEHs) using experimental data within a Bayesian inference setting is discussed. The implementation requires: a predictive model ... -
Morfotectónica de la zona costera de Chile Central (32°-33°S) mediante análisis numérico de terreno
(Universidad de Chile, 2019) -
A tip for landscape riders: multi-field inflation can fulfill the swampland distance conjecture
(IOP, 2020)We study how both the swampland distance conjecture and the Lyth bound affect the parameter space of multi-field models of inflation. A generic feature of multi-field inflation is that the geodesic distance [Delta phi](G) ... -
A new hybrid heuristic algorithm for the Precedence Constrained Production Scheduling Problem: A mining application
(Elsevier, 2020)In this work we address the Precedence Constrained Production Scheduling Problem (PCPSP), the problem of scheduling tasks in such a way that total profit is maximized, while satisfying conditions such as precedence constraints ... -
A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS
(EDP Sciences, 2020)We report the detection of a transiting super-Earth-sized planet (R = 1.39 +/- 0.09 R-circle plus) in a 1.4-day orbit around L 168-9 (TOI-134), a bright M1V dwarf (V = 11, K = 7.1) located at 25.15 +/- 0.02 pc. The host ... -
When gas dynamics decouples from galactic rotation: characterizing ism circulation in disk galaxies
(IOP Publishing, 2020)In galactic disks, galactic rotation sets the bulk motion of gas, and its energy and momentum can be transferred toward small scales. Additionally, in the interstellar medium, random and noncircular motions arise from ... -
Two-dimensional optical chimera states in an array of coupled waveguide resonators
(American Institute of Physics, 2020)Two-dimensional arrays of coupled waveguides or coupled microcavities allow us to confine and manipulate light. Based on a paradigmatic envelope equation, we show that these devices, subject to a coherent optical injection, ... -
Thick, strong sediment subduction along south-central Chile anditsrole ingreat earthquakes
(Elsevier, 2020)The south-central Chile margin experienced the largest and sixth largest earthquakes ever recorded - the 1960 Mw 9.5 Valdivia and 2010 Mw 8.8 Maule megathrust earthquakes, respectively. In early 2017, we conducted a seismic ... -
Transition to spatiotemporal intermittency and defect turbulence in systems under translational coupling
(American Physical Society, 2020)Out of equilibrium systems under the influence of enough energy injection exhibit complex spatiotemporal behaviors. Based on a liquid crystal light valve experiment with translational optical feedback, we observe propagation, ... -
An information-theoretic sampling strategy for the recovery of geological images:modeling, analysis, and implementation
(Universidad de Chile, 2019)Geostatistical tools have become the standard for characterizing the spatial distribution of geological subsurface structures. However, the problem of image recovery for regimes with low acquisition rates still poses a ... -
Review of “The Little Prover”
(Cambridge University Press, 2020)Review of “The Little Prover” by Daniel P. Friedman and Carl Eastlund, MIT Press, 2015 -
The Gondwanan margin in West Antarctica: insights from Late Triassic magmatism of the Antarctic Peninsula
(Elsevier, 2020)Triassic orthogneisses of the Antarctic Peninsula provide evidence for the Palaeozoic and Mesozoic geological evolution of southern Gondwana within Pangaea. These rocks are sporadically exposed in southeastern Graham Land ...
