Search results for " POS"
showing 10 items of 3656 documents
The directed profitable rural postman problem with incompatibility constraints
2017
[EN] In this paper, we study a variant of the directed rural postman problem (RPP) where profits are asso- ciated with arcs to be served, and incompatibility constraints may exist between nodes and profitable arcs leaving them. If convenient, some of the incompatibilities can be removed provided that penalties are paid. The problem looks for a tour starting and ending at the depot that maximizes the difference between collected profits and total cost as sum of traveling costs and paid penalties, while satisfying remaining incompatibilities. The problem finds application in the domain of road transportation service, and in particular in the context of horizontal collaboration among carriers …
Attempts for Common Understanding of the Concept of Worker as a Consequence of Globalisation?
2017
AbstractGlobalisation may concern many different issues, among others, the increase in migration that creates opportunities for all. There should be no doubt that globalisation can bring both positive and negative effects to workers. It can be seen as new opportunities for people, because they can travel, work, learn and live in different countries. Simultaneously however it can be perceived as synonymous to job losses, social injustice, or low environmental, health, and privacy standards. As a result of globalisation, the world is becoming more and more complex and the economic importance of state borders is reduced. It should therefore not raise doubts, that global problems require the ca…
Probabilistic cross-validation estimators for Gaussian process regression
2018
Gaussian Processes (GPs) are state-of-the-art tools for regression. Inference of GP hyperparameters is typically done by maximizing the marginal log-likelihood (ML). If the data truly follows the GP model, using the ML approach is optimal and computationally efficient. Unfortunately very often this is not case and suboptimal results are obtained in terms of prediction error. Alternative procedures such as cross-validation (CV) schemes are often employed instead, but they usually incur in high computational costs. We propose a probabilistic version of CV (PCV) based on two different model pieces in order to reduce the dependence on a specific model choice. PCV presents the benefits from both…
“Sealfie”, “Phoque you” and “Animism”: The Canadian Inuit Answer to the United-States Anti-sealing Activism
2018
A corpus made by online Canadian newspaper articles, coming from the archives of CBC News, Vice Canada and Huffington Post Canada, and related multimedia contents such us audio interviews, videos and especially links to images and comments shared on Twitter, allows us to reconstruct the debate on the seal hunt that involved Canadian media in 2014. In specific, we propose an interpretation of the pro-sealing discourse by Canadian Inuit and Newfoundlanders as an ironic and incisive answer to the serious United States animal rights activists discourse, explaining how these two different points of view on animals come from a different experience of the environment and a different conception of …
Effetto del trattamento con 1-meticiclopropene su frutti di mango (Mangifera indica L.) della cul ti var Kei tt, conservati a temperatura ambiente
2016
Il Mango (Mangifera indica L.) è un frutto climaterico sensibile alle basse temperature e con una vita post-raccolta relativemente breve. L’obiettivo della ricerca è stato quello di valutare l’effetto dell’ 1-metilciclopropene (1-MCP), applicato a temperature ambiente, sulla conservazione di frutti di mango della cv Keitt. I frutti di Keitt, cultivar a maturazione tardiva, sono stati raccolti, presso un’azienda commerciale, sita a Furiano, in provincia di Messina (38°3' N, 14°33' E; 5 m s.l.m.). Immediatamente dopo la raccolta, sui frutti sono state effettuate le analisi chimico-fisiche: peso, consistenza, contenuto in solidi solubili, acidità titola- bile, colore, ecc. I frutti sono sta…
Temata "MANA VALSTS – LATVIJA" apguve pirmsskolas izglītības programmas 1. posmā
2021
Diplomdarba tēmas “Temata “Mana valsts – Latvija” apguve pirmsskolas izglītības programmas 1. posmā” mērķis pētīt mācību saturu tēmas “Mana valsts – Latvija” apguves iespējas pirmsskolas izglītības 1. posmā. Diplomdarba teorētiskajā daļā darba autore veic teorētiskās literatūras analīzi par sociālo un pilsonisko mācību jomu, 1. posmu un pedagoģisko procesu, kā arī analīzē mācību materiālus un līdzekļus. Diplomdarba praktiskajā daļā darba autore veic pirmsskolas pedagogu aptauju un izstrādā mēneša mācību plānu, ko izvērtē ar ekspertatzinuma metodi. Mēneša plāns palīdzēs aktualizēt sociālo un pilsonisko mācību jomu un popularizēs tikumisko audzināšanu. Atslēgvārdi: sociālā un pilsoniskā mācīb…
Muzicēšanas nozīme bērnu runas atīstībā 2-3 gadu vecumam
2022
Darba tēmas nosaukums ,, Muzicēšanas nozīme bērnu runas attīstībā no 2-3 gadu vecumam“. Darba autore ir Dita Pūpola, šī darba vadītāja ir Mg. paed. B. Brice. Rakstot pētījumu, tēmu izvēlējos vadoties pēc laikmeta iezīmēm un problēmām, kurā noteicošu lomu ieņem viedierīces, kas savukārt mazina savstarpējo verbālo kontaktu bērniem ar vecākiem, tādējādi runas attīstība netiek sekmēta . Pētījumā tika izmantoti vairāku psihologu, pedagogu : G. Svence, D. Lieģiniece , B. Brice, S. J. Beņilovas, A. Līdumas u. c. autoru atziņas . •Pētījuma uzdevums : veikt teorētisku pamatojumu un praktiskā darbā pētot bērnu, kuru vecums ir 2-3 gadi, runas attīstību, radot iespēju ar muzicēšanas metodi sekmēt valod…
A posteriori error majorants of the modeling errors for elliptic homogenization problems
2013
In this paper, we derive new two-sided a posteriori estimates of the modeling errors for linear elliptic boundary value problems with periodic coefficients solved by homogenization. Our approach is based on the concept of functional a posteriori error estimation. The estimates are obtained for the energy norm and use solely the global flux of the non-oscillatory solution of the homogenized model and solution of a boundary value problem on the cell of periodicity.
A posteriori modelling-discretization error estimate for elliptic problems with L ∞-Coefficients
2017
We consider elliptic problems with complicated, discontinuous diffusion tensor A0. One of the standard approaches to numerically treat such problems is to simplify the coefficient by some approximation, say Aϵ, and to use standard finite elements. In [19] a combined modelling-discretization strategy has been proposed which estimates the discretization and modelling errors by a posteriori estimates of functional type. This strategy allows to balance these two errors in a problem adapted way. However, the estimate of the modelling error was derived under the assumption that the difference A0 - Aϵ becomes small with respect to the L∞-norm. This implies in particular that interfaces/discontinui…