Search results for "MESSAGE"
showing 10 items of 92 documents
Towards a Formal Analysis of MQtt Protocol in the Context of Communicating Vehicles
2017
International audience; The paper presents a formal approach to model, analyze, and verify a variant of Message Queue Telemetry Transport protocol (MQtt), dedicated to communicating vehicles (MQtt-CV) that send collected data to automotive infrastructures(subscribers). Our formal approach is based on Promela language and its system verification tool, the model checker SPIN. We propose a slight modification of MQtt protocol to reduce the big volume of data collected and sent by vehicles to infrastructures. Indeed, in the original version of MQtt protocol, when a broker receives data from publishers, it sends them directly to its subscribers without any filtration. As consequence, subscribers…
Riesgos infecciosos alimentarios y embarazo: ¿cuál es la información de la que disponen los profesionales de la salud?
2020
This study focuses on the nature and origin of prevention information available to health professionals in the field of nutrition for pregnant women. It focuses more specifically on information sharing practices regarding two infectious risks: toxoplasmosis and listeriosis. The information available to professionals on these potential risks comes mainly from institutional texts and manuals. We will focus here on the recommendations found in institutional texts, which show striking characteristics which need to be taken into account in the training of professionals: such recommendations are evolving in nature, with shifts in clarity and degree of precision, and are diverse in terms of messag…
Priority Levels Based Multi-hop Broadcasting Method for Vehicular Ad hoc Networks
2015
International audience; This paper deals with broadcasting problem in vehicular ad hoc networks (VANETs). This communication mode is commonly used for sending safety messages and traffic information. However, designing an efficient broadcasting protocol is hard to achieve since it has to take into account some parameters related to the network environment, for example, the network density, in order to avoid causing radio interferences. In this paper, we propose a novel Autonomic Dissemination Method (ADM) which delivers messages in accordance with given priority and density levels. The proposed approach is based on two steps: an offline optimization process and an adaptation to the network …
In COVID-19 Health Messaging, Loss Framing Increases Anxiety with Little-to-No Concomitant Benefits: Experimental Evidence from 84 Countries
2022
Contains fulltext : 284232.pdf (Publisher’s version ) (Closed access) The COVID-19 pandemic (and its aftermath) highlights a critical need to communicate health information effectively to the global public. Given that subtle differences in information framing can have meaningful effects on behavior, behavioral science research highlights a pressing question: Is it more effective to frame COVID-19 health messages in terms of potential losses (e.g., "If you do not practice these steps, you can endanger yourself and others") or potential gains (e.g., "If you practice these steps, you can protect yourself and others")? Collecting data in 48 languages from 15,929 participants in 84 countries, we…
Proximité/distance comme catégories d'analyse pour la communication médiée par ordinateur : l'exemple de Twitter en allemand
2019
Doctoral; Les nouvelles technologies de communication (Schmitz 2004) – des sms d’antan aux messages snapchat d’aujourd’hui en passant par les réseaux sociaux devenus plus traditionnels comme Facebook – ont changé le rapport du locuteur/scripteur à la face matérielle de l’échange linguistique (Dürscheid/Frick 2016) ainsi que le résume, pour l’allemand, le titre de Lobin (2018), digital und vernetzt – das neue Bild der Sprache. A la suite des nombreux travaux portant sur l’écriture sms (par exemple Reinkemeyer 2013) ou encore du projet Whats’up Switzerland (Dürscheid 2018a, 2018b), la plateforme de microblogging Twitter attire de plus en plus l’attention des linguistes en tant que forme de Co…
How environmental gain messages affect cause involvement, attitude and behavioural intentions: the moderating effects of CSR scepticism and biospheri…
2022
PurposeThis study examines the direct effect of outcome message frames (gain vs loss) on cause involvement and the moderating roles of consumers' corporate social responsibility (CSR) scepticism and biospheric values. Furthermore, the authors analyse (1) the effects of gain-framed messages on consumer attitudes towards an environmental cause (i.e. the use of reusable coffee cups) and towards the company promoting the cause (a coffee shop chain); (2) how consumer attitudes towards the cause affect their attitudes towards the company; and (3) how consumer attitudes towards both the cause and the company affect their behavioural intentions towards both the cause and the company.Design/methodol…
Smartphone viewing distance during active or passive tasks and relation to heterophoria
2019
Our aim was to analyze viewing distance for smartphone users (aged 18-45 y.) in terms of passive or active task, relation to heterophoria, type of refractive error and smartphone font size. Participants were asked to read out loud text message (passive task) and afterwards rewrite the same text and send back (active task). For the text message we used sentence consisting of 23 words and 200 characters (with spaces). Participants used their own smartphones (font size monitored). For both passive and active task we measured task time and viewing distance at the end of the task. We found significantly shorter viewing distance for digital active task compared to passive task (29.3 ± 4.7 and 32.…
Using text messages to bridge the intention-behavior gap? A pilot study on the use of text message reminders to increase objectively assessed physica…
2012
Sedentarism is a serious health concern in industrialized countries throughout the world. We examined whether a text message-based intervention, targeted at increasing daily levels of physical activity, would be more effective than a standard psychoeducational intervention and a control condition. Sixty-three individuals (43 women) with a mean age of 23.7 years participated in the study. They were randomly assigned to a psychoeducational standard intervention; an augmented intervention with additional short text messages sent to the mobile phones to remind participants of their action plans, and a control condition. Objectively assessed physical activity and self-efficacy were assessed pre-…
Complexity Selection of the Self-Organizing Map
2002
This paper describes how the complexity of the Self-Organizing Map can be selected using the Minimum Message Length principle. The use of the method in textual data analysis is also demonstrated.
A Parallel Implementation of the Tree-Structured Self-Organizing Map
2002
This paper presents how Self-Organizing Maps (SOMs)can be trained efficiently using several, simultaneously executing threads on a shared memory Symmetric MultiProcessing (SMP)computer. The training method is a batch version of the Tree-Structured Self-Organizing Map. We note that SMP type of parallel training is very useful for large data sets obtained from nature, the process industry or large document collections, since we do not encounter similar model size limitations as with hardware SOM implementations.