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Evaluation of metadata in research data repositories about biodiversityAvaliação de metadados em repositórios de dados de pesquisa sobre biodiversidade
(Universidade Federal do Rio Grande do Sul, Faculdade de Biblioteconomia e Comunicação, Programa de Pós-Graduação em Ciência da Informação (Porto Alegre/RS), 2022)
Development and Assessment of a Data Set[-2pt] Containing Frame Images and Dense Airborne Laser Scanning Point Clouds
(2017-12-28)
This letter describes the main features of a data set that contains aerial images acquired with a medium format digital camera and point clouds collected using an airborne laser scanning unit, as well as ground control ...
Extraction of Building Roof Boundaries From LiDAR Data Using an Adaptive Alpha-Shape Algorithm
(Ieee-inst Electrical Electronics Engineers Inc, 2019-08-01)
The alpha-shape algorithm was developed to extract object shapes in 2-D space; however, the accuracy of the result depends on an appropriate choice of the parameter alpha. This parameter is directly related to point density ...
Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects
(2018-01-01)
GPS and GLONASS are currently the Global Navigation Satellite Systems (GNSS) with full operational capacity. The integration of GPS, GLONASS and future GNSS constellations can provide better accuracy and more reliability ...
Aggregated 2D range queries on clustered points
(Pergamon-Elsevier Science, 2016)
Efficient processing of aggregated range queries on two-dimensional grids is a common requirement in information retrieval and data mining systems, for example in Geographic Information Systems and OLAP cubes. We introduce ...
INFERENCES FOR THE CHANGE-POINT OF THE EXPONENTIATED WEIBULL HAZARD FUNCTION
(INST NACIONAL ESTATISTICA-INELISBON, 2012)
In many applications of lifetime data analysis, it is important to perform inferences about the change-point of the hazard function. The change-point could be a maximum for unimodal hazard functions or a minimum for bathtub ...
Accelerating floating-point to fixed-point data type conversion with evolutionary algorithms
(IETStevenage, UK, 2015-02)
The choice of the data type representation has significant impacts on
the resource utilisation, maximum clock frequency and power consumption
of any hardware design. Although arithmetic hardware
units for the fixed-point ...
Optimal placement of data aggregation points for smart metering using wireless heterogeneous networks
(Institute of Electrical and Electronics Engineers Inc., 2018)
This paper presents a heuristic model that optimally deploys the resources used to obtain a metropolitan and neighborhood area network with connectivity between the central office of an electricity company and the integrated ...
Improved Prediction of Hydrocarbon Flash Points from Boiling Point Data
(AMER CHEMICAL SOC, 2010)
Flash points (T(FP)) of hydrocarbons are calculated from their flash point numbers, N(FP), with the relationship T(FP) (K) = 23.369N(FP)(2/3) + 20.010N(FP)(1/3) + 31.901 In turn, the N(FP) values can be predicted from ...