Search results for "Information Systems"
showing 10 items of 1926 documents
Heuristic solutions to the problem of routing school buses with multiple objectives
2002
In this paper we address the problem of routing school buses in a rural area. We approach this problem with a node routing model with multiple objectives that arise from conflicting viewpoints. From the point of view of cost, it is desirable to minimise the number of buses used to transport students from their homes to school and back. From the point of view of service, it is desirable to minimise the time that a given student spends en route. The current literature deals primarily with single-objective problems and the models with multiple objectives typically employ a weighted function to combine the objectives into a single one. We develop a solution procedure that considers each objecti…
A Decision Model for the Multiple Criteria Group Secretary Problem: Theoretical Considerations
1996
A decision model is developed for solving the discrete multiple criteria group secretary problem. The model extends the single decision-maker progressive algorithm by Korhonen, Moskowitz and Wallenius to group contexts. As the original progressive algorithm, it relaxes the usual assumption of a fixed set of available decision alternatives and complete knowledge of a decision-maker's preference structure (value function). The decision-makers are requested to settle on a compromise, if possible. The model then proceeds with determining the likelihood of finding possibly/surely better settlements (compromises). Linear value functions, linear prospect theory-type value functions, and quasiconca…
Labour Scheduling at an Airport Refuelling Installation
1999
We have developed an automatic assignment procedure for labour scheduling at a continously operating airport refuelling installation. Different types of workers are subject to different conditions on the shifts they can do (morning, evening or night), shift lengths, days-off, holidays, terms of contract and working hours. The scheduling process is carried out on a weekly basis, but there are mid-term and long-term conditions and objectives which link each week with the preceding and following weeks. Our package uses firstly a tabu search algorithm to find the best schemes of shifts/days-off to be used to cover the requirements. Secondly, an assignment problem is solved to match the schemes …
HISTÓRIAS CORPORATIVAS E A IDEIA DA AMÉRICA LATINA
2021
RESUMO O objetivo deste artigo é contribuir para uma grande variedade de perspectivas teóricas e configurações empíricas para gerar evidências cumulativas sobre a influência de legados históricos e capacidade organizacional para gerenciar o passado. Continuando com a perspectiva crítica que desafia o domínio das epistemologias anglo-saxônicas nos estudos de gestão e organização, realizamos um estudo empírico sobre uma companhia aérea multinacional cujos sucessos passados dependiam das fronteiras norte/sul anglo-latino-americanas. Analisamos as grandes narrativas da Pan American Airways (PAA) a partir dos arquivos corporativos da empresa a fim de determinar quais os discursos dominantes acer…
NUEVAS FORMAS DE REPORTING CORPORATIVO: INFORMACIÓN SOBRE LA HUELLA DE CARBONO EN ESPAÑA
2018
RESUMEN A raíz del Protocolo de Kioto, España crea el Registro Nacional de Huella de Carbono, Compensación y Proyectos de Absorción de Dióxido de Carbono mediante el Real Decreto 163/2014. Ello se constituye en una iniciativa pionera para potenciar que las empresas españolas den visibilidad a su compromiso en la reducción de sus emisiones de Gases de Efecto Invernadero (GEI). Bajo este contexto, la presente investigación explora los determinantes de la adhesión al Registro Nacional de Huella de Carbono español. Se realiza un estudio exploratorio de las características de las primeras empresas españolas que decidieron inscribir su huella de carbono, a través de un modelo de regresión logísti…
Cross-cultural Differences in Movie Selection. Decision-making of German, U.S., and Singaporean Media Users for Video-on-Demand Movies
2017
ABSTRACTThis article investigates the process of individual decision-making for movies on video-on-demand platforms from a cross-cultural perspective. Models of decision-making and movie selection act as theoretical underpinning. The article focuses on the information search phase and examines media consumers' information use during movie selection. Empirically the article relies on an online survey among N = 694 German, the U.S., and Singaporean students. Results indicate that participants considered only a limited amount of information before carrying out their choice. Participants shared a preference for product-related cues over crowd-related cues signaling previous user-experiences. Wi…
The Role of Roots in the Perception of a Destination: an Exploratory Study on Sicily
2004
ABSTRACT This study was conducted to determine the effect of ancestry on perception of Sicily as a tourist destination. Central Florida students' perception of Sicily was explored using a combination of qualitative and quantitative design with a sample of 276 students. While all respondents perceived Sicily as a tourist destination rich in scenery, culture and sun, sand and sea opportunities, those students with Italian ancestors had a statistically more significant positive image of Sicily.
Conversion rate determinants in e-commerce websites. What about moderation effects?
2018
Online retailers invest significant resource to improve conversion rates, defined as the proportion of website visitors that make a purchase. Using 1,184 observations from six e-commerce websites, this paper aims to analyse conversion rate determinants, also considering moderation effects of seasonality and webpage speed of load. Results show that free shipping and discounts policy have a positive effect on the conversion rate, moderated by seasonality and load speed. These finding could be useful guidelines for e-commerce managers in order to allocate their limited resources to the most relevant factor to increase online sales.
The Impact of Perceived Usefulness of Online Reviews, Trust and Perceived Risk on Online Purchase Intention in Emerging Markets: A Mexican Perspective
2020
The purpose of this study is to investigate online purchase intention in emerging markets focusing on the impact of perceived usefulness of online reviews, trust and perceived risk. The results wer...
Managers’ Perceptions of Delivered Value in the Hospitality Industry
2015
Although management literature has deeply reported the importance of assessing customers’ value perceptions, little attention has been paid to managers’ value perceptions (delivered value). This article presents a conceptual model of relationships between delivered value and customer orientation, service culture, and managers’ perception of customer satisfaction, tested with mulitblock PLS among 200 hospitality managers. Additionally, we present an index on a multidimensional scale of delivered value built with multitable analysis. Results support the proposed conceptual model and show increasing intensities of both the links in the model and the index by different hotel categories. The res…