Search results for " Program"

Agents Displacement in Arbitrary Geometrical Spaces: An Evolutionary Computation based Approach

2015

In many different social contexts, communication allows a collective intelligence to emerge. However, a correct way of exchanging information usually requires determined topological configurations of the agents involved in the process. Such a configuration should take into account several parameters, e.g. agents positioning, their proximity and time efficiency of communication. Our aim is to present an algorithm, based on evolutionary programming, which optimizes agents placement on arbitrarily shaped areas. In order to show its ability to deal with arbitrary bi-dimensional topologies, this algorithm has been tested on a set of differently shaped areas that present concavities, convexities …

Comparison of Numerical Methods in the Contrast Imaging Problem in NMR

2013

International audience; In this article, the contrast imaging problem in nuclear magnetic resonance is modeled as a Mayer problem in optimal control. A first synthesis of locally optimal solutions is given in the single-input case using geometric methods based on Pontryagin's maximum principle. We then compare these results using direct methods and a moment-based approach, and make a first step towards global optimality. Finally, some preliminary results are given in the bi-input case.

Predictive Energy Management for Hybrid Vehicles Based on Driving Cycle Recognition

2017

International audience; This article presents a novel approach to design an optimum energy management for a series plug-in hybrid electric vehicle based on driving cycle recognition. Thanks to an intensive study of driver habits, an important part of cycles is predictable. Optimized energy management can be developed for representative cycles via DP. Those results can be applied to the same cycle with slight adaptations thereafter with quality factors above 98%.

Evaluating a hierarchical approach to landscape level harvest scheduling

2018

Forest planning at the landscape level has the potential to become a large intractable problem. In Finland, Metsähallitus (the state enterprise that manages federally owned land) creates strategic plans to determine the appropriate harvest level. While these plans are feasible, they are not implementable in practice as the harvests are scattered temporally and spatially. Requiring that harvests be organized both temporally and spatially for practical implementation can result in an intractable problem. Through a hierarchical approach, the problem can be organized into steps in which the intractable problem is broken down into smaller easily solvable parts. As an approximation technique, the…

Influence of the teaching program on the learning in knowledge and practice of osteonecrosis of the jaws produced by antireasorptives in dental stude…

2017

Background This study aims to evaluate the influence of changes in the teaching contents on medication-related osteonecrosis of the jaw may have on the knowledge and the capacity for practical case resolution about this pathology. Material and methods A cross-sectional descriptive study was conducted through a survey divided into four sections: degree of means of knowledge acquisition, habitual practice and ability to solve clinical cases. The total number of respondents (n = 225) was divided into two groups: Group A (Year 2015-2016) and Group B (Year 2016-2017). The students in Group B received more teaching content on the subject than group A. Results A total of 175 survey responses were …

Multicriteria Decision Analysis for Choosing the Remediation Method for a Landfill Based on Mixed Ordinal and Cardinal Information

2009

We describe a real-life application of a multicriteria method in the context of remediating a landfill in Finland. The landfill was used for dumping industrial waste during the years 1950 to 1965. During that time many harmful chemicals were stored in landfills among other waste. Therefore, this—and possibly several other—landfills have to be remediated. In this application, seven different remediation options were evaluated based on 13 criteria. For some criteria, cardinal measures with associated uncertainties were obtained. For other criteria, only ordinal (ranking) information was available. The problem was analyzed using the Stochastic Multicriteria Acceptability Analysis with Ordinal …

The relative relationship between education and workplace task discretion: an international comparative perspective

2019

International audience; Through analyses of Programme for the International Assessment of Adult Competencies (PIAAC) data, the following study considers the direct and indirect association between education and workplace task discretion in 30 countries. By focusing on cross-national comparison, it considers the ways in which these findings are dependent on both the overall level and the range of task discretion across occupational sectors within a country. Theoretically, individual-agency and critical-institutional hypotheses are compared, two perspectives that provide divergent explanations for the indirect association between education and task discretion. The findings partially support b…

Distance and coupling: analyzing the pressures of accounting change in a city

2008

PurposeThe purpose of this paper is to analyze the accounting performance measurement (PM) change process in a Finnish city.Design/methodology/approachInterpretive case study. Data consisted of 16 semi‐structured interviews. Analysis was based on institutional theory, particularly on “new institutional sociology” (NIS) studies.FindingsBudgeting and accounting PM became coupled into action when various intertwined (mostly institutional) pressures affecting change converged. Perceived crises were found to accelerate accounting change by deinstitutionalization, i.e. by breaking (drastically) existing routines and myths. Further, accounting rules and routines changed somewhat independently. Fur…

Sekcijas "Globalizācijas ietekme uz valsts ekonomiku un biznesu" Ekonomikas un vadības fakultātē (28. janvāris, 2016): Referātu tēzes

2016

Using Cellular Automata for feature construction - preliminary study

2007

When first faced with a learning task, it is often not clear what a good representation of the training data should look like. We are often forced to create some set of features that appear plausible, without any strong confidence that they will yield superior learning. Beside, we often do not have any prior knowledge of what learning method is the best to apply, and thus often try multiple methods in an attempt to find the one that performs best. This paper describes a new method and its preliminary study for constructing features based on cellular automata (CA). Our approach uses self-organisation ability of cellular automata by constructing features being most efficient for making predic…