scholarly journals Ontologies for location based services quality enhancement: the case of emergency services

2015 ◽  
Author(s):  
Linda Mhadhbi ◽  
Jalel Akaichi ◽  
Mohamed Hedi Karray ◽  
Bernard Archimde
Keyword(s):  
Emergency Services ◽  
Services Quality ◽  
Location Based Services ◽  
Quality Enhancement

scholarly journals Decentralized collaborative TTP free approach for privacy preservation in location based services

2019 ◽  
Vol 9 (6) ◽  
pp. 5376
Author(s):  
Ajaysinh Devendrasinh Rathod ◽  
Saurabh Shah ◽  
Vivaksha J. Jariwala
Keyword(s):  
Privacy Preservation ◽  
Location Privacy ◽  
Emergency Services ◽  
Personal Information ◽  
Personal Digital Assistant ◽  
Minimum Cost ◽  
Location Based Services ◽  
Third Party ◽  
Trusted Third Party ◽  
Recent Trends

In recent trends, growth of location based services have been increased due to the large usage of cell phones, personal digital assistant and other devices like location based navigation, emergency services, location based social networking, location based advertisement, etc. Users are provided with important information based on location to the service provider that results the compromise with their personal information like user’s identity, location privacy etc. To achieve location privacy of the user, cryptographic technique is one of the best technique which gives assurance. Location based services are classified as Trusted Third Party (TTP) & without Trusted Third Party that uses cryptographic approaches. TTP free is one of the prominent approach in which it uses peer-to-peer model. In this approach, important users mutually connect with each other to form a network to work without the use of any person/server. There are many existing approaches in literature for privacy preserving location based services, but their solutions are at high cost or not supporting scalability.  In this paper, our aim is to propose an approach along with algorithms that will help the location based services (LBS) users to provide location privacy with minimum cost and improve scalability.

Towards a Conceptual Model of User Acceptance of Location-Based Emergency Services

2013 ◽  
Vol 5 (2) ◽  
pp. 17-34 ◽  
Author(s):  
Anas Aloudat ◽  
Katina Michael
Keyword(s):  
Technology Acceptance ◽  
Conceptual Model ◽  
Emergency Services ◽  
Reasoned Action ◽  
Well Being ◽  
Location Based Services ◽  
Main Concern ◽  
Services Research ◽  
Location Services ◽  
Special Adaptation

This paper investigates the introduction of location-based services by government as part of an all-hazards approach to modern emergency management solutions. Its main contribution is in exploring the determinants of an individual’s acceptance or rejection of location services. The authors put forward a conceptual model to better predict why an individual would accept or reject such services, especially with respect to emergencies. While it may be posited by government agencies that individuals would unanimously wish to accept life-saving and life-sustaining location services for their well-being, this view remains untested. The theorised determinants include: visibility of the service solution, perceived service quality features, risks as perceived by using the service, trust in the service and service provider, and perceived privacy concerns. The main concern here is to predict human behaviour, i.e. acceptance or rejection. Given that location-based services are fundamentally a set of electronic services, this paper employs the Technology Acceptance Model (TAM) as a special adaptation of the Theory of Reasoned Action (TRA) to serve as the theoretical foundation of its conceptualisation. A series of propositions are drawn upon the mutual relationships between the determinants and a conceptual model is constructed using the determinants and guided by the propositions. It is argued the conceptual model presented would yield to the field of location-based services research a justifiable theoretical approach competent for exploitation in further empirical research in a variety of contexts (e.g. national security).

Quality Enhancement in Designing E-Tourism Service Systems

2015 ◽  
pp. 43-63 ◽  
Author(s):  
Ye Wang ◽  
Jie Sun
Keyword(s):  
Quantitative Analysis ◽  
Services Quality ◽  
Service Systems ◽  
Quality Enhancement ◽  
Important Indicator ◽  
Core Set ◽  
Tourism Service ◽  
Tourism Services

With many e-tourism businesses providing same or similar services, quality has become an important indicator for good e-tourism services. Yet, Quality of Tourism Service (QoTS) is usually difficult to handle due to a set of characteristics. In this chapter, the authors have identified a core set of common QoTSs such as performance, reliability and security through the investigation of several e-tourism systems. This chapter will first give precise definitions to a set of QoTSs and then present detailed metrics for these QoTSs. Besides, this chapter will provide a way to quantitative analysis of different QoTSs and finally introduce how to use a partition-based architecture to improve the performance and reliability of tourism services.

scholarly journals Preface

2019 ◽  
Vol 2 ◽  
pp. 1-2
Author(s):  
Georg Gartner ◽  
Haosheng Huang
Keyword(s):  
User Interfaces ◽  
Emergency Services ◽  
Research Field ◽  
Location Based Services ◽  
Indoor Environments ◽  
Crowd Sourcing ◽  
Double Blind ◽  
Transport Services ◽  
Research Activities ◽  
Mobile Information

Abstract. We are now living in a mobile information era, which is fundamentally changing science and society. Location Based Services (LBS), which deliver information depending on the location of the (mobile) device and user, play a key role in this mobile information era. In recent years, lots of progress has been achieved in the research field of LBS, due to the increasingly maturity of the underpinning communication technologies and mobile devices. LBS have become more and more popular in not only citywide outdoor environments, but also shopping malls, museums, and many other indoor environments. They have been applied for emergency services, tourism services, intelligent transport services, social networking, gaming, assistive services, etc.Since its initiation by Georg Gartner from TU Wien (Austria) in 2002, the LBS conference series has become one of the most important scientific events decided to LBS. The conferences have been held in Vienna (2002, 2004, 2005), Hong Kong (2007), Salzburg (2008), Nottingham (2009), Guangzhou (2010), Vienna (2011), Munich (2012), Shanghai (2013), Vienna (2014), Augsburg (2015), Vienna (2016), and Zurich (2018). Starting from 2015, the LBS conferences have become the annual event of the Commission on Location-Based Services of the International Cartographic Association (ICA) (http://lbs.icaci.org/). In November 2019, the 15th LBS conference (LBS 2019) will be hosted by TU Wien in Vienna, Austria.This book contains a selection of peer-reviewed full papers submitted to LBS 2019. All the chapters have been accepted after a rigor double-blind reviewing process. The book provides a general picture of recent research activities related to the domain of LBS. Such activities emerged in the last years, especially concerning issues of outdoor/indoor positioning, smart environment, spatial modeling, personalization and context-awareness, cartographic communication, novel user interfaces, crowd sourcing, social media, mobility analytics, usability and privacy.We would like to thank all the authors for their excellent work and all referees for their critical and constructive reviews. We hope you enjoy reading these papers, and look forward to your participation in the future LBS conferences.

Outreach Psychiatric Emergency Service

Crisis ◽  
2020 ◽  
Vol 41 (5) ◽  
pp. 375-382
Author(s):  
Remco F. P. de Winter ◽  
Mirjam C. Hazewinkel ◽  
Roland van de Sande ◽  
Derek P. de Beurs ◽  
Marieke H. de Groot
Keyword(s):  
General Practitioner ◽  
General Hospital ◽  
Suicidal Behavior ◽  
Emergency Service ◽  
Attempted Suicide ◽  
Emergency Services ◽  
Psychiatric Emergency ◽  
Psychiatric Emergency Services ◽  
Psychiatric Emergency Service ◽  
Suicidal Patients

Abstract. Background: Outreach psychiatric emergency services play an important role in all stages of a suicidal crisis; however, empirical assessment data are scarce. This study describes characteristics of patients assessed by these services and involved in suicidal crises. Method: During a 5-year period, detailed information from psychiatric emergency service assessments was recorded; 14,705 assessments were included. Characteristics of patients with/without suicidal behavior and with/without suicide attempts were compared. Outcomes were adjusted for clustering of features within individual patients. Results: Suicidal behavior was assessed in 32.2% of patients, of whom 9.2% attempted suicide. Suicidal behavior was most commonly associated with depression or adjustment disorder and these patients were referred to the service by a general practitioner or a general hospital, whereas those who attempted suicide were less likely to be referred by a general practitioner. Those who attempted suicide were more likely to be female and have had a referral by a general hospital. Self-poisoning by medication was the most common method of attempting suicide. Limitations: Bias could be due to missed or incomplete assessments. Primary diagnoses were based on clinical observation at the time of the assessment or on the primary diagnosis previously recorded. In addition, suicidal behavior or attempted suicide might have been underestimated. Conclusions: Suicidal behavior is commonplace in assessments by psychiatric emergency services. Suicidal patients with/without a suicide attempt differed with respect to demographic features, primary diagnoses, and referring entities, but not with respect to treatment policy. About 40% of the suicidal patients with/without an attempt were admitted following assessment.

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