Search results for "CROWD"

The impact of fairness on the performance of crowdsourcing an empirical analysis of two intermediate crowdsourcing platforms

2016

This research aims to investigate mechanisms available to the seeker to encourage participation of solvers to a challenge. We hypothesize that specific crowdsourcing mechanisms, reducing the information asymmetry of solvers on the challenge, increase solvers’ perception of procedural and distributive fairness and incentive their self-selection process. Moreover, posing problem in an ‘open’ manner exposes seekers to possible opportunism risks. Thus, seekers utilize many safeguard contractual mechanisms to mitigate these risks and protect the information shared in a challenge. By using data from two intermediate crowdsourcing pltaforms, we provide that safeguard mechanisms may have a drawback…

How do I rule my solver’s relationship? An empirical investigation of governance structures in crowdsourcing contests

2016

In order to continually innovate, companies are increasingly opening their boundaries and signing crowdsourcing agreements with solution providers. However, crowdsourcing scholars are no closer to understanding how possible solvers’ opportunistic behaviours affect the governance structure proposed by the seeker at the moment the challenge is broadcast. Building on the managerial-choice approach of transaction cost economics, we aim to examine how contract conditions, specified in the request for proposal (RFP), aiming to reduce the effect of solver’s opportunistic behaviours whilst influencing seekers’ preferences toward proposing contractual agreements to manage the working relationship wi…

LEVERAGING CROWDSOURCING COMMUNITY TO INCREASE THE CHANCES OF WINNING CONTESTS: A SIGNALLING THEORY APPROACH

CROWDSOURCING COMMUNITY NETWORK AND SOLVERS’ SUCCESS

THE EFFECT OF ASSUMING DIFFERENT POSITIONS IN THE CROWDSOURCING COMMUNITY NETWORK ON SOLVERS’ SUCCESS

POSITIONS IN CROWDSOURCING COMMUNITY NETWORK AND SOLVERS’ SUCCESS

On the Effect of Downscaling in Inkjet Printed Life-Inspired Compartments

2019

The fabrication of size-scalable liquid compartments is a topic of fundamental importance in synthetic biology, aiming to mimic the structures and the functions of cellular compartments. Here, inkjet printing is demonstrated as a customizable approach to fabricate aqueous compartments at different size regimes (from nanoliter to femtoliter scale) revealing the crucial role of size in governing the emerging of new properties. At first, inkjet printing is shown to produce homogenous aqueous compartments stabilized by oil-confinement with mild surfactants down to the hundreds of picoliter scale [1]. Raster Image Correlation Spectroscopy allows to monitor few intermolecular events by the involv…

Modeling crowd dynamics through coarse-grained data analysis

2018

International audience; Understanding and predicting the collective behaviour of crowds is essential to improve the efficiency of pedestrian flows in urban areas and minimize the risks of accidents at mass events. We advocate for the development of crowd traffic management systems, whereby observations of crowds can be coupled to fast and reliable models to produce rapid predictions of the crowd movement and eventually help crowd managers choose between tailored optimization strategies. Here, we propose a Bi-directional Macroscopic (BM) model as the core of such a system. Its key input is the fundamental diagram for bi-directional flows, i.e. the relation between the pedestrian fluxes and d…

Modeling, evaluation, and scale on artificial pedestrians: a literature review

2017

Modeling pedestrian dynamics and their implementation in a computer are challenging and important issues in the knowledge areas of transportation and computer simulation. The aim of this article is to provide a bibliographic outlook so that the reader may have quick access to the most relevant works related to this problem. We have used three main axes to organize the article's contents: pedestrian models, validation techniques, and multiscale approaches. The backbone of this work is the classification of existing pedestrian models; we have organized the works in the literature under five categories, according to the techniques used for implementing the operational level in each pedestrian …

Evolution of dental arches characteristics in two age groups

2005

Introducción: Se comparan las características dimensionales de las arcadas dentarias entre dos grupos de edades diferentes, adolescentes y adultos jóvenes, para analizar las variaciones asociadas a la edad, sexo y a la influencia del tratamiento ortodóncico. Material y método: Se utilizaron dos muestras: 88 pares de modelos de escayola de adolescentes (edad media 14,05 años) y 65 de adultos (edad media 22,15 años). Se usó un método digital para la medición de los diámetros mesiodistales de los dientes, distancias intercaninas e intermolares, longitudes de las arcadas y se obtuvo el apiñamiento dentario inferior. Para el análisis estadístico se agruparon las muestras de cada grupo de edad po…