Search results for "User"
showing 10 items of 1060 documents
On the evolution of e-Government: The user imperative
2003
Published version of a chapter published in Lecture Notes in Computer Science, 2739, 139-143. Also available from the publisher at: http://dx.doi.org/10.1007/10929179_25 This paper focuses the need for more research on user involvement and the investigation of stakeholders in e-Government initiatives. An investigation of existing work revealed a lack of research on those topics. As e-Government evolves and users mature, the value of their input can increase. The paper discusses the need and potential benefits of this approach. Finally, we suggest that existing stakeholder theory is investigated for adaptation into e-Government settings in order to map the complex body of interrelated stakeh…
The role of perceived value and emotions in the satisfaction and future intentions of spectators
2016
The quality of service offered by sports entities has become a good predictor of user satisfaction and also future intentions. To know the future intentions of customers of any service is a key objective to develop service improvement and retention strategies. This need has also become apparent to professional sports clubs. In this study, the relationship between quality, perceived value, emotions, satisfaction and future intentions of spectators are analyzed for a sporting event. Using a sample of 563 spectators and modeling with structural equations, results indicate that perceived value is the best predictor of the satisfaction and future intentions of spectators, while quality and emoti…
Professionals’ views on children’s service user involvement
2021
Purpose Children are gradually attaining recognition as service users and their involvement in service development has been advanced in recent years. This study draws on empirical research in social and health-care services designed for children and families. The purpose of this paper is to analyse how professionals understand children’s involvement as experts by experience. The focus is on professionals’ views and intergenerational relations. Design/methodology/approach The research data comprise 25 individual and 10 group interviews with managers and professionals working in social and health-care services in one Finnish province. The data were analysed using qualitative thematic analysi…
Identifying critical incidents in naturalistic driving data: experiences from a promoting real life observation for gaining understanding of road use…
2013
The methodology of naturalistic driving observation aspires to observe the driver and his environment while driving in natural driving settings. It is of great importance in research on road safety as this method of observing road users eliminates the disadvantages of traditional methods like simulator studies or interviews. However, it produces vast such amounts of data and challenges data reduction and data analysis. Therefore automatic methods for filtering critical incidents based on thresholds for numerical data are often applied to select the data to be analysed. This study reports a small-scale field trial in Valencia, Spain, which was conducted within the promoting real life observa…
Discovering Homophily in Online Social Networks
2018
During the last ten years, Online Social Networks (OSNs) have increased their popularity by becoming part of the real life of users. Despite their tremendous widespread, OSNs have introduced several privacy issues as a consequence of the nature of the information involved in these services. Indeed, the huge amount of private information produced by users of current OSNs expose the users to a number of risks. The analysis of the users’ similarity in OSNs is attracting the attention of researchers because of its implications on privacy and social marketing. In particular, the homophily between users could be used to reveal important characteristics that users would like to keep hidden, hence …
Virtual Reality Simulator Training of Laparoscopic Cholecystectomies — A Systematic Review
2012
Background and Aims: Simulators are widely used in occupations where practice in authentic environments would involve high human or economic risks. Surgical procedures can be simulated by increasingly complex and expensive techniques. This review gives an update on computer-based virtual reality (VR) simulators in training for laparoscopic cholecystectomies. Materials and Methods: From leading databases (Medline, Cochrane, Embase), randomised or controlled trials and the latest systematic reviews were systematically searched and reviewed. Twelve randomised trials involving simulators were identified and analysed, as well as four controlled studies. Furthermore, seven studies comparing black…
Convolutional architectures for virtual screening
2020
Abstract Background A Virtual Screening algorithm has to adapt to the different stages of this process. Early screening needs to ensure that all bioactive compounds are ranked in the first positions despite of the number of false positives, while a second screening round is aimed at increasing the prediction accuracy. Results A novel CNN architecture is presented to this aim, which predicts bioactivity of candidate compounds on CDK1 using a combination of molecular fingerprints as their vector representation, and has been trained suitably to achieve good results as regards both enrichment factor and accuracy in different screening modes (98.55% accuracy in active-only selection, and 98.88% …
Task-based visual analytics for interactive multiobjective optimization
2020
We study how visual interaction techniques considered in visual analytics can be utilized when implementing interactive multiobjective optimization methods, where a decision maker iteratively participates in the solution process. We want to benefit from previous research and avoid re-inventing ideas. Our aim is to widen awareness and increase the applicability of interactive methods for solving real-world problems. As a concrete approach, we introduce seven high-level tasks that are relevant for interactive methods. These high-level tasks are based on low-level tasks proposed in the visual analytics literature. In addition, we give an example on how the high-level tasks can be implemented a…
Conceptual graph operations for formal visual reasoning in the medical domain
2014
International audience; Objective - Conceptual graphs (CGs) are used to represent clinical guidelines because they support visual reasoning with a logical background, making them a potentially valuable representation for guidelines.Materials and methods - Conceptual graph formalism has an essential and basic component: a formal vocabulary that drives all of the other mechanisms, notably specialization and projection. The graph's theoretical operations, such as projection, rules, derivation, constraints, probabilities and uncertainty, support diagrammatic reasoning.Results - A conceptual graph's graphical user interface includes a multilingual vocabulary management, some query and decision-m…
Analysis of RRM limitations and restricted transmission periods for VoIP over HSDPA
2009
This paper studies how the performance of Voice over IP (VoIP) over High Speed Downlink Packet Access (HS-DPA) networks is affected if transmission to a User Equipment (UE) is stopped for specific amount of time during handover procedure. This paper also addresses the situation when it might be necessary to limit the number of UEs in a cell. The study showed that parameter settings for Radio Resource Management (RRM) algorithms can have an effect to the VoIP capacity: If handover lasts long enough for VoIP packets to be lost, or severe congestion occurs in a cell, VoIP capacity may be degraded.