O HDFS Balancer é a solução nativa para o balanceamento de réplicas no sistema de arquivos distribuído do Hadoop. Entretanto, o balanceador possui limitações de uso, uma vez que depende do disparo manual e sua política de balanceamento não considera o estado de sobrecarga do ambiente computacional. Este trabalho apresenta uma estratégia que automat...
International audience
Bottom-up energy models are considered essential tools to support policy design ofelectricity end-use efficiency. However, in the literature, no study analyzes their contribution tosupport policy design of electricity end-use efficiency, the modeling techniques used to build them,and the policy instruments supported by them. This systematic review ...
We present here both some of our thoughts on methodology in relation to the specific constraints that complexify the ways of structuring and accessing bibliographical data in the Sciences of Antiquity, and the solutions adopted by the IPhiS-CIRIS project for dealing with these constraints. The project began in 2014 in a general scientific environme...
Commercial speed is often used to qualify the level of service of, e.g buses. For bus networks, it varies a lot because of exogenous factors like road infrastructure, traffic, ridership, etc. Until now, highlighting those factors has been a harsh task. In this paper, we use massive heterogeneous data to assess how known factors impact the bus comme...
Human activities induce changes on land use and land cover. These changes are most significant in urban areas where topographic features (e.g., building, road) affect the density of impervious surface areas and introduce a range of urban morphological patterns. Those characteristics impact the energy balance and modify the climate locally (e.g., in...
Restitution du projet Pændora organisée par la Fédération nationale des agences d’urbanisme (Fnau)
In the last few years, the concept of data lake has become trendy for data storage and analysis. Thus, several design alternatives have been proposed to build data lake systems. However, these proposals are difficult to evaluate as there are no commonly shared criteria for comparing data lake systems. Thus, we introduce DLBench, a benchmark to eval...
Missing values occur commonly in the multidimensional data warehouses. They may generate problems of usefulness of data since the analysis performed on a multidimensional data warehouse is through different dimensions with hierarchies where we can roll up or drill down to the different parameters of analysis. Therefore, it's essential to complete t...
Objectives: A vast data mining project called ‘TRACking and moniToring Occupational Risks in agriculture’ (TRACTOR) was initiated in 2017 to investigate work-related health events among the entire French agricultural workforce. The goal of this work is to present the TRACTOR project, the challenges faced during its implementation, to discuss its st...
