Search results for "Information System"
showing 10 items of 2404 documents
Smart Wireless Sensor Networks and Biometric Authentication for Real Time Traffic Light Junctions Management
2013
The main challenge of intelligent transportation systems (ITS) is to deal with ‘real-time’ information to improve vehicular traffic management. Road data can be processed and used for dynamic traffic light management in order to reduce waiting times in queues. This paper proposes an innovative distributed architecture based on a wireless sensor network (WSN) with a network coordinator providing remote and ubiquitous authentication module for managing unexpected events. The architecture is completed by a dynamic module for street priority management depending on traffic rate. Many experimental trials have been carried out considering three different levels of traffic intensity to prove the e…
Hvilke faktorer påvirker IPLOS registreringen i primærhelsetjeneste?
2019
Masteroppgave helse- og sosialinformatikk HSI500 - Universitetet i Agder 2019 Background: According to the «Regulations on pseudonymous register for individual health and care statistics»the municipality sector commits itself to registertheir services and patients in the municipalities. Based on this, a registration system was developed which is integrated into the EPR systems used in the municipal sectors. IPLOS is the registry where all data is collected and used for statistics and distribution of earmarked funds. Reporting to the IPLOS registry is an imposed task that can pose a number of challenges for the health personnel who perform the registrations.Purpose:The purpose of the assignm…
Identification of Energy Hubs for the Exploitation of Residual Biomass in an Area of Western Sicily
2017
Recent years have witnessed a marked reduction in financial incentives for renewable energy production in Italy as a consequence of the fact that the nation has already reached its energy policy targets for 2020, However, incentives still persist in certain sectors, such as those of specialized crops for biomass and residual biomass. In order to increase use-efficiency of biomass resources, careful study is needed of their characteristics, and their distribution within an area and over time: biomass use is of interest when production is concentrated in a given area and sufficiently available throughout the year. In order to assess the competitiveness of the biomass energy sector, the logist…
A two-phase insertion technique of unexpected customers for a dynamic dial-a-ride problem
2006
Abstract This work deals with a dynamic dial-a-ride problem with time window constraints. In particular, new unplanned requests for service may arise at a vehicle stop and the driver must decide in real-time whether to accept or reject them. For this problem, we have developed a two-phase insertion algorithm based on route perturbations: the first phase, which is run off-line when the vehicle moves between two successive stops, aims at creating a feasible neighborhood of the current route; while the second phase, which is run in real-time every time a new request occurs, inserts, when possible, the delivery stop of the new customer in the current route.
Minimizing fleet operating costs for a container transportation company
2006
Abstract This paper focuses on a fleet management problem that arises in container trucking industry. From the container transportation company perspective, the present and future operating costs to minimize can be divided in three components: the routing costs, the resource (i.e., driver and truck) assignment costs and the container repositioning costs (i.e., the costs of restoring a given container fleet distribution over the serviced territory, as requested by the shippers that own the containers). This real-world problem has been modeled as an integer programming problem. The proposed solution approach is based on the decomposition of this problem in three simpler sub-problems associate…
Intervention Effect Rates as a Path to Research Relevance : Information Systems Security Example
2018
In the current information systems security (ISS) research, new theory contributions are especially valued. This research typically reflects the following formula: Suggest a new theory (or set of constructs) of ISS and show that it is empirically supported, then suggest another new theory (or set of constructs with some linkages) and show that it is empirically supported, and so on. Despite the merits of this approach, it leaves out many important scientific aspects. For example, after more than 30 years of ISS research, (1) we know little about the conditions and situations to which new theories (or constructs) do not apply; (2) we do not know which new theories are more effective than oth…
Personal use of technology at work : a literature review and a theoretical model for understanding how it affects employee job performance
2021
Employee personal use of technology at work (PUTW)—defined as employees’ activities using organisational or personal IT resources for non-work-related purposes while at work—is increasingly common in organisations. Our review of existing PUTW studies (n = 137) suggests that previous studies widely discussed PUTW outcomes, antecedents, and policies. The literature review also indicates that previous studies have proposed opposing viewpoints regarding the effect of PUTW on employee job performance, but few studies offered empirical evidence. Consequently, the conditions under which PUTW can increase or decrease employee job performance have not been discussed. We develop a theoretical model (…
A different glimpse into mobilities: On the interrelations between daily spatial mobility and social mobility
2017
We explore the link between daily spatial mobility and social mobility, taking changes in the contemporary labor market and family as examples. We propose a new theoretical approach to mobility that is defined as a productive force of social labor. Analyzing the relationship between daily spatial mobility and social mobility, we show that spatial mobility has become a strategy of compensation for the lack of social mobility. Explanations for the increase in daily spatial mobility are also provided. Lastly, we reveal how spatial mobility has the capacity to produce major social change, taking the family as an example. peerReviewed
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…
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 …