Search results for "information"
showing 10 items of 14916 documents
Compensation of Nonlinearity of Voltage and Current Instrument Transformers
2019
This paper aims at characterizing and improving the metrological performances of current and voltage instrument transformers (CTs and VTs) in harmonic measurements in the power system. A theoretical analysis is carried out to demonstrate that, due to the iron core nonlinearity, CT and VT output signal is distorted even when the input signal is a pure sine wave. Starting from this analysis, a new method for CT and VT characterization and compensation is proposed. In a first step, they are characterized in sinusoidal conditions and the harmonic phasors of the distorted output are measured; in the second step, these phasors are used to compensate the harmonic phasors measured in normal operati…
: Un dialogue interculturel ?
2008
National audience; L'artisan nous intéresse ici comme un acteur des savoirs. Notre position universitaire n'est pas neutre, il existe une tension entre ces deux mondes dont le chercheur doit tenir compte : comment se présente l'artisan comme acteur des savoirs dans le regard des chercheurs ? Quel est le regard des artisans sur eux-mêmes et par contraste sur les chercheurs en sciences humaines et sociales comme acteurs des savoirs ? Nous proposons un jeu de miroir sur ces représentations sociales, avant d'examiner deux formes de médiation possibles. Ces expériences nous invitent à envisager un rapport aux savoirs repéré dans la figure hybride de "l'artisan-chercheur".
Application of the Information Bottleneck method to discover user profiles in a Web store
2018
The paper deals with the problem of discovering groups of Web users with similar behavioral patterns on an e-commerce site. We introduce a novel approach to the unsupervised classification of user sessions, based on session attributes related to the user click-stream behavior, to gain insight into characteristics of various user profiles. The approach uses the agglomerative Information Bottleneck (IB) algorithm. Based on log data for a real online store, efficiency of the approach in terms of its ability to differentiate between buying and non-buying sessions was validated, indicating some possible practical applications of the our method. Experiments performed for a number of session sampl…
Water and Energy Saving in Urban Water Systems: The ALADIN Project
2016
The ALADIN project was aimed at contributing to environmental and energy sustainability of the urban water system by means of a decision support tool able to allow an evaluation of the energy impact related to each different macro-sectors of urban water cycle highlighting the main energy flows and to assess the system energy balance and identify the possible energy-efficient solutions. Moreover the tool suggests the most efficient actions in reducing water losses. In the present paper the main features of the developed tool are presented. (C) 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.
Le Désir d'en être ou l'exemple du patrimoine mondial de l'Unesco
2009
International audience; L'article vise à montre que les procédures de classement et de muséalisation du monde vient contrebalancer un désintérêt pour le patrimoine dans d'autres sphères de la vie sociale.
Contrasts in fitness, motor competence and physical activity among children involved in single or multiple sports
2021
Abstract Study aim: While there is wide debate around specialization in one sport, there is a lack of information about fitness levels and motor competence of children participating in single or multiple sports. Material and methods: The study involved 358 fifth-grade children who participated in a set of health-related fitness and motor competence tests over two consecutive years. A subsample of children (n = 109) wore an accelerometer for seven consecutive days. The independent samples t-test and ANCOVA were used to compare differences between single and multi-sport participants in study variables and changes between baseline and follow-up. Results: Multi-sport participants performed bett…
Tietojärjestelmän käyttöönottoprosessi loppukäyttäjä- ja kehittäjätiedon pohjalta : tapaus Foster Wheeler Energia Oy
2014
Pro Gradu tutkimus käsittelee tietojärjestelmän käyttöönottoprosessia case yrityksen Foster Wheeler Energia Oy:n Engineering osastolla. Tutkimuksen tavoitteena on löytää kahden käyttöönottoprosessin sekä kirjallisuuskatsauksen pohjalta tietojärjestelmän käyttöönottoprosessin Best Practice suositukset. Kohteena oleva tietojärjestelmä on case yrityksessä tarkoitus jalkauttaa neljään eri yksikköön maailmanlaajuisesti. Tutkimuskysymyksien avulla pyrittiin selvittämään, mitkä tekijät vaikuttavat positiivisesti käyttöönottoprosessissa tai vaikeuttavat sitä sekä selvittämään käyttäjäkeskeisen suunnittelun vaikutuksia käyttöönottoprosessissa. Tutkimus on toteutettu tapaustutkimuksena laadullisin …
Lietojuma norādes mācību vārdnīcās angļu valodā
2020
Lietojuma norādes sniedz svarīgu informāciju par leksikas vienību lietojumu. Šī darba mērķis ir izpētīt lietojuma norādes piecās vadošajās angļu valodas mācību vārdnīcās, lai noskaidrotu, vai vārdnīcas izmanto konsekventu pieeju attiecībā uz lietojuma norāžu izmantošanu. Pētījumā tiek izmantota aprakstošā un salīdzinošā satura analīzes metode. Pētījuma ietvaros arī tika veikta aptauja, lai uzzinātu, kāda ir lietotāju attieksme pret lietojuma norāžu atspoguļojumu vārdnīcās un cik lielā mērā tās ir noderīgas lietotājiem. Pētījumā veiktā analīze parāda, ka vārdnīcas neizmanto konsekventu pieeju lietojuma norāžu izmantošanā un Longman Dictionary of Contemporary English ir lietotājiem visdraudzī…
Automatic evaluation of information provider reliability and expertise
2013
Published version of an article in the journal: World Wide Web. Also available from the publisher at: http://dx.doi.org/10.1007/s11280-013-0249-x Q&A social media have gained a lot of attention during the recent years. People rely on these sites to obtain information due to a number of advantages they offer as compared to conventional sources of knowledge (e.g., asynchronous and convenient access). However, for the same question one may find highly contradicting answers, causing an ambiguity with respect to the correct information. This can be attributed to the presence of unreliable and/or non-expert users. These two attributes (reliability and expertise) significantly affect the quality o…
EntityBot: Actionable Entity Recommendations for Everyday Digital Task
2022
Our everyday digital tasks require access to information from a wide range of applications and systems. Although traditional search systems can help find information, they usually operate within one application (e.g., email client or web browser) and require the user's cognitive effort and attention to formulate proper search queries. In this paper, we demonstrate EntityBot, a system that proactively provides useful and supporting entities across application boundaries without requiring explicit query formulation. Our methodology is to exploit the context from screen frames captured every 2 seconds to recommend relevant entities for the current task. Recommendations are not restricted to on…