Existing research on context and context awareness has broadly focused on the technical aspects of context acquisition and interpretation of users’ surroundings, also called physical or sensor-based context. Such an approach is lack of reconciling the user’s perception of real-world context and a context-aware system’s interpretation of that context. Using Analytic Hierarchy Process (AHP), we propose a hybrid approach that accounts for both user and physical context in defining an overall context awareness value. The model is validated using a simulation approach, which is valuable in that it examines and helps reduce the uncertainty in AHP to some extent. The results suggest several preliminary guidelines to determine representative measures of user and physical context in the design and evaluation of context-aware systems.
{"title":"Exploring a Hybrid Approach for Modeling Context Awareness Using Analytic Hierarchy Process and Simulation","authors":"Yaser Mowafi, G. Forgionne, Dongsong Zhang","doi":"10.1109/CENTRIC.2010.22","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.22","url":null,"abstract":"Existing research on context and context awareness has broadly focused on the technical aspects of context acquisition and interpretation of users’ surroundings, also called physical or sensor-based context. Such an approach is lack of reconciling the user’s perception of real-world context and a context-aware system’s interpretation of that context. Using Analytic Hierarchy Process (AHP), we propose a hybrid approach that accounts for both user and physical context in defining an overall context awareness value. The model is validated using a simulation approach, which is valuable in that it examines and helps reduce the uncertainty in AHP to some extent. The results suggest several preliminary guidelines to determine representative measures of user and physical context in the design and evaluation of context-aware systems.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127781463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Current service cloud models can be easily seen as application-centered: they provide an access point to services and artifacts but, including them as separate resources, they do not offer a unified and cross-application perspective on users’ activities. As an answer to this issue, we present a user-centered cloud model which, by enabling services to synchronize on a unified context, enhances users’ interaction with Web 2.0 applications within the service cloud. The underlying infrastructure of our model can handle shared data and activities involving multiple services, providing a unified, cross-application workspace awareness support. This shared context supports the management of flexible and extensible collaboration environments.
{"title":"A User Perspective on Cloud Computing","authors":"G. Bosio","doi":"10.1109/CENTRIC.2010.19","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.19","url":null,"abstract":"Current service cloud models can be easily seen as application-centered: they provide an access point to services and artifacts but, including them as separate resources, they do not offer a unified and cross-application perspective on users’ activities. As an answer to this issue, we present a user-centered cloud model which, by enabling services to synchronize on a unified context, enhances users’ interaction with Web 2.0 applications within the service cloud. The underlying infrastructure of our model can handle shared data and activities involving multiple services, providing a unified, cross-application workspace awareness support. This shared context supports the management of flexible and extensible collaboration environments.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129611984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper describes the Context Awareness Framework developed for the HYDRA Middleware Project. The HYDRA project aims to develop middleware to support intelligent networked embedded system based on a service-oriented architecture, deployable on both new and existing networks of distributed wireless and wired devices. A well developed Context Awareness Framework (CAF) is crucial for the success of such intelligent networked systems. Changing requirements and dynamic environments are drivers for context-aware applications. The automatic execution of system adaptations leads to a successful and effective information and communication system that provides information and functionality that is relevant and at the right level of complexity with respect to the current situation. This paper elaborates on the various issues involved in the design and development of a Context Awareness Framework for an intelligent networked embedded system.
{"title":"A Context-Awareness Framework for Intelligent Networked Embedded Systems","authors":"A. Badii, M. Crouch, Chattun Lallah","doi":"10.1109/CENTRIC.2010.29","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.29","url":null,"abstract":"This paper describes the Context Awareness Framework developed for the HYDRA Middleware Project. The HYDRA project aims to develop middleware to support intelligent networked embedded system based on a service-oriented architecture, deployable on both new and existing networks of distributed wireless and wired devices. A well developed Context Awareness Framework (CAF) is crucial for the success of such intelligent networked systems. Changing requirements and dynamic environments are drivers for context-aware applications. The automatic execution of system adaptations leads to a successful and effective information and communication system that provides information and functionality that is relevant and at the right level of complexity with respect to the current situation. This paper elaborates on the various issues involved in the design and development of a Context Awareness Framework for an intelligent networked embedded system.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121574918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The paper deals with security implementation in remote unattended sites which employ sensor systems using versatile communication methods. The principles of security management are outlined. Then, the paper discusses some improvements in the methods for transmission of collected data and images in such areas to the remote monitoring site through wireless communication. Herein, data transmission without errors is important so as to avoid mistakes in understanding insecurity levels. While spread spectrum communication is a choice, additional encoding of the data for secrecy is a requirement. A method based on wavelets is useful for this purpose. Encoded data could be transmitted through frequency hopped spread spectrum communication.
{"title":"Secured Image Transmission Using Wavelets for Spread Spectrum Communication in a Remote Surveillance System","authors":"R. Hariprakash, S. Ananthi, K. Padmanabhan","doi":"10.1109/CENTRIC.2010.15","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.15","url":null,"abstract":"The paper deals with security implementation in remote unattended sites which employ sensor systems using versatile communication methods. The principles of security management are outlined. Then, the paper discusses some improvements in the methods for transmission of collected data and images in such areas to the remote monitoring site through wireless communication. Herein, data transmission without errors is important so as to avoid mistakes in understanding insecurity levels. While spread spectrum communication is a choice, additional encoding of the data for secrecy is a requirement. A method based on wavelets is useful for this purpose. Encoded data could be transmitted through frequency hopped spread spectrum communication.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124132635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Telecardiology is a newer alternative modality for providing effective cardiac care from a variable distances by utilizing information and information and communication technology. The cardiovascular diseases in rural population of Malaysia including Sabah are a leading cause of death. The scarcity of specialists, leads to delayed treatment, irregular follow up and ineffective monitoring. We aim to improve the cardiac care by telecardiology services. These services will be based on hybrid approach consisting of frequent tele consultations along with infrequent real regular follow up visits by physicians to evaluate clinical as well as diagnostic parameters. It will not only help us for early diagnosis, constant monitoring and quick remedial support, but will also prove to be cost effective alternative. These objectives were targeted. First, is to reduce the healthcare cost, followed by effective evaluation of tele cardiac tools (tele stethoscope and ECG) at variable distances and database for medical education. This novel approach will not only bridge the gap between rural and main hospitals, but will also provide the sense of security and emotional support amongst the patients.
{"title":"Telecardiology for e-Diagnosis and e-Learning in Rural Area of Sabah, Malaysia: A Novel Approach for Cardiac Services in Rural Medicine","authors":"M. Iftikhar, Harsukpreet Singh, M. S. Arifianto","doi":"10.1109/CENTRIC.2010.25","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.25","url":null,"abstract":"Telecardiology is a newer alternative modality for providing effective cardiac care from a variable distances by utilizing information and information and communication technology. The cardiovascular diseases in rural population of Malaysia including Sabah are a leading cause of death. The scarcity of specialists, leads to delayed treatment, irregular follow up and ineffective monitoring. We aim to improve the cardiac care by telecardiology services. These services will be based on hybrid approach consisting of frequent tele consultations along with infrequent real regular follow up visits by physicians to evaluate clinical as well as diagnostic parameters. It will not only help us for early diagnosis, constant monitoring and quick remedial support, but will also prove to be cost effective alternative. These objectives were targeted. First, is to reduce the healthcare cost, followed by effective evaluation of tele cardiac tools (tele stethoscope and ECG) at variable distances and database for medical education. This novel approach will not only bridge the gap between rural and main hospitals, but will also provide the sense of security and emotional support amongst the patients.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129269213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Providing mobile services that ensure user satisfaction is one of the most crucial issues for telecommunication carriers and service providers. Traditionally, user satisfaction with the service, i.e., the Quality of Experience (QoE), has been assessed in a laboratory. However, a reliable QoE for a target mobile service in the context of actual use cannot be obtained by laboratory experiment. This paper proposes a novel Web script-based method that evaluates user satisfaction for waiting time of mobile services in the field. The proposed method has the following practical advantages. Since experimental conditions, especially communication conditions, can be simulated with a Web script, such as FlashLite, a subjective assessment can be conducted anywhere using the mobile terminal of the participant. Thus, QoE for a target mobile service in the field can easily be obtained. The main contribution of this paper is that we clarified that a subjective assessment system that implements the proposed Web script-based method is suitable for evaluating user satisfaction regarding waiting time where this time ranges from a few hundred milliseconds to a few seconds.
{"title":"A Web Script-Based Method to Evaluate User Satisfaction of Mobile Services in the Field","authors":"S. Uemura, S. Niida, Hajime Nakamura","doi":"10.1109/CENTRIC.2010.21","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.21","url":null,"abstract":"Providing mobile services that ensure user satisfaction is one of the most crucial issues for telecommunication carriers and service providers. Traditionally, user satisfaction with the service, i.e., the Quality of Experience (QoE), has been assessed in a laboratory. However, a reliable QoE for a target mobile service in the context of actual use cannot be obtained by laboratory experiment. This paper proposes a novel Web script-based method that evaluates user satisfaction for waiting time of mobile services in the field. The proposed method has the following practical advantages. Since experimental conditions, especially communication conditions, can be simulated with a Web script, such as FlashLite, a subjective assessment can be conducted anywhere using the mobile terminal of the participant. Thus, QoE for a target mobile service in the field can easily be obtained. The main contribution of this paper is that we clarified that a subjective assessment system that implements the proposed Web script-based method is suitable for evaluating user satisfaction regarding waiting time where this time ranges from a few hundred milliseconds to a few seconds.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122411883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As the ubiquitous communication environment advances, there is a demand for services that deliver the type of content appropriate for the preferences of the user. Services are already available that identify the user’s preferences by analyzing his/her log information, and recommend items of content suitable for him/her. Methods of inferring the user’s mood by partially analyzing pictograms frequently used in his/her emails have been proposed. In this paper, we extend such methods in order to enhance the accuracy of mood inference. Specifically, we propose a method of inferring the user’s mood from emoticons, a set letters to form a face that graphically expresses the user’s emotion, used in his/her multiple emails, and a method of identifying the user’s preferences by analyzing pictograms that are used in his/her single email. We extract mood elements and preference elements and their intensities from pictograms and emoticons, and register them in respective databases. We developed a prototype system for evaluation. The study of the sample emails collected using this system confirmed the effectiveness of the proposed methods.
{"title":"A Method of Inferring the Preferences and Mood of Mobile Phone Users by Analyzing Pictograms and Emoticons Used in their Emails","authors":"R. Yamashita, Sanae Yamaguchi, K. Takami","doi":"10.1109/CENTRIC.2010.9","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.9","url":null,"abstract":"As the ubiquitous communication environment advances, there is a demand for services that deliver the type of content appropriate for the preferences of the user. Services are already available that identify the user’s preferences by analyzing his/her log information, and recommend items of content suitable for him/her. Methods of inferring the user’s mood by partially analyzing pictograms frequently used in his/her emails have been proposed. In this paper, we extend such methods in order to enhance the accuracy of mood inference. Specifically, we propose a method of inferring the user’s mood from emoticons, a set letters to form a face that graphically expresses the user’s emotion, used in his/her multiple emails, and a method of identifying the user’s preferences by analyzing pictograms that are used in his/her single email. We extract mood elements and preference elements and their intensities from pictograms and emoticons, and register them in respective databases. We developed a prototype system for evaluation. The study of the sample emails collected using this system confirmed the effectiveness of the proposed methods.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"461 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122804008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Given the characteristics of the mobile phone market, the development of RFID technology in mobile phones (NFC) could grow quickly and importantly. This paper considers the possible impact of this evolution in term of privacy, and after a few examples, proposes a survey of technology and products of the PC-world intending to offer good privacy characteristics. Then it describes a model and technical architecture, which aims at enhancing privacy in many applications from the vast family of access control/right control applications.
{"title":"A Privacy-Enhanced M-Transactions Architecture for Awareness and Trust","authors":"J. Paillès, J. Vincent","doi":"10.1109/CENTRIC.2010.8","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.8","url":null,"abstract":"Given the characteristics of the mobile phone market, the development of RFID technology in mobile phones (NFC) could grow quickly and importantly. This paper considers the possible impact of this evolution in term of privacy, and after a few examples, proposes a survey of technology and products of the PC-world intending to offer good privacy characteristics. Then it describes a model and technical architecture, which aims at enhancing privacy in many applications from the vast family of access control/right control applications.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"51 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113961190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper deals with a very important issue in any knowledge engineering discipline: the accurate representation and modelling of real life data and its processing by human experts. The work is applied to the GRiST Mental Health Risk Screening Tool for assessing risks associated with mental-health problems. The complexity of risk data and the wide variations in clinicians’ expert opinions make it difficult to elicit representations of uncertainty that are an accurate and meaningful consensus. It requires integrating each expert’s estimation of a continuous distribution of uncertainty across a range of values. This paper describes an algorithm that generates a consensual distribution at the same time as measuring the consistency of inputs. Hence it provides a measure of the confidence in the particular data item’s risk contribution at the input stage and can help give an indication of the quality of subsequent risk predictions.
{"title":"Modulating Membership Grades to Gain Consensus for Fuzzy Set Uncertainty Values in a Clinical Decision Support System","authors":"S. Hegazy, C. Buckingham","doi":"10.1109/CENTRIC.2010.27","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.27","url":null,"abstract":"This paper deals with a very important issue in any knowledge engineering discipline: the accurate representation and modelling of real life data and its processing by human experts. The work is applied to the GRiST Mental Health Risk Screening Tool for assessing risks associated with mental-health problems. The complexity of risk data and the wide variations in clinicians’ expert opinions make it difficult to elicit representations of uncertainty that are an accurate and meaningful consensus. It requires integrating each expert’s estimation of a continuous distribution of uncertainty across a range of values. This paper describes an algorithm that generates a consensual distribution at the same time as measuring the consistency of inputs. Hence it provides a measure of the confidence in the particular data item’s risk contribution at the input stage and can help give an indication of the quality of subsequent risk predictions.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128922214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sharing heterogeneous data among distributed environments in a user-centric way represents today the main challenge for personalization. In recent years several techniques have been proposed to support user modeling for cross-system personalization, following two main approaches. A first group of researchers base their solutions on the use of a top-down approach, involving standard ontologies or unified user models (standardization-based user modeling); in a second research direction, a bottom-up approach based on mappings between different user model representations is the envisaged solution (mediation-based user modeling). The aim of this paper is to discuss general problems connected to user modeling in multiapplication environments and to provide a short survey on current research in this field. Based on this, we briefly draw out some further research.
{"title":"A Survey on User Modeling in Multi-application Environments","authors":"Marco Viviani, N. Bennani, Elöd Egyed-Zsigmond","doi":"10.1109/CENTRIC.2010.30","DOIUrl":"https://doi.org/10.1109/CENTRIC.2010.30","url":null,"abstract":"Sharing heterogeneous data among distributed environments in a user-centric way represents today the main challenge for personalization. In recent years several techniques have been proposed to support user modeling for cross-system personalization, following two main approaches. A first group of researchers base their solutions on the use of a top-down approach, involving standard ontologies or unified user models (standardization-based user modeling); in a second research direction, a bottom-up approach based on mappings between different user model representations is the envisaged solution (mediation-based user modeling). The aim of this paper is to discuss general problems connected to user modeling in multiapplication environments and to provide a short survey on current research in this field. Based on this, we briefly draw out some further research.","PeriodicalId":142806,"journal":{"name":"2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117037366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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