Online education plays a more and more important role in the era of Internet and cloud computing, but two problems remain unsolved including MOOCs. First, most of existing online education platforms only provide teaching materials in format of ppt, pdf, video, and they seldom support education based on graphical Web applications. Second, some online education platforms may provide self-governed chatting tools or whiteboards, but they are not combined with teaching materials closely. As a result, they cannot satisfy the need for the real-time interactions based on complex teaching materials. To solve the problems above, we put forward an online education approach using Web operation record and replay techniques, and implement online synchronized education and real-time interactions between teachers and students. Moreover, we develop a supporting tool OSEP for the approach. In the case study, we describe three education scenarios, which verify that the approach supports not only personal learning by tutorials and wizards, but also online in-class real-time collaborative learning.
{"title":"An Online Education Approach Using Web Operation Record and Replay Techniques","authors":"Yanchun Sun, Dejian Chen, Wenpin Jiao, Gang Huang","doi":"10.1109/COMPSAC.2014.68","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.68","url":null,"abstract":"Online education plays a more and more important role in the era of Internet and cloud computing, but two problems remain unsolved including MOOCs. First, most of existing online education platforms only provide teaching materials in format of ppt, pdf, video, and they seldom support education based on graphical Web applications. Second, some online education platforms may provide self-governed chatting tools or whiteboards, but they are not combined with teaching materials closely. As a result, they cannot satisfy the need for the real-time interactions based on complex teaching materials. To solve the problems above, we put forward an online education approach using Web operation record and replay techniques, and implement online synchronized education and real-time interactions between teachers and students. Moreover, we develop a supporting tool OSEP for the approach. In the case study, we describe three education scenarios, which verify that the approach supports not only personal learning by tutorials and wizards, but also online in-class real-time collaborative learning.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115607158","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}
Murtadha N. Albasrawi, Nathan Jarus, Kamlesh Joshi, Sahra Sedigh Sarvestani
Smart grids, where cyber infrastructure is used to make power distribution more dependable and efficient, are prime examples of modern infrastructure systems. The cyber infrastructure provides monitoring and decision support intended to increase the dependability and efficiency of the system. This comes at the cost of vulnerability to accidental failures and malicious attacks, due to the greater extent of virtual and physical interconnection. Any failure can propagate more quickly and extensively, and as such, the net result could be lowered reliability. In this paper, we describe metrics for assessment of two phases of smart grid operation: the duration before a failure occurs, and the recovery phase after an inevitable failure. The former is characterized by reliability, which we determine based on information about cascading failures. The latter is quantified using resilience, which can in turn facilitate comparison of recovery strategies. We illustrate the application of these metrics to a smart grid based on the IEEE 9-bus test system.
{"title":"Analysis of Reliability and Resilience for Smart Grids","authors":"Murtadha N. Albasrawi, Nathan Jarus, Kamlesh Joshi, Sahra Sedigh Sarvestani","doi":"10.1109/COMPSAC.2014.75","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.75","url":null,"abstract":"Smart grids, where cyber infrastructure is used to make power distribution more dependable and efficient, are prime examples of modern infrastructure systems. The cyber infrastructure provides monitoring and decision support intended to increase the dependability and efficiency of the system. This comes at the cost of vulnerability to accidental failures and malicious attacks, due to the greater extent of virtual and physical interconnection. Any failure can propagate more quickly and extensively, and as such, the net result could be lowered reliability. In this paper, we describe metrics for assessment of two phases of smart grid operation: the duration before a failure occurs, and the recovery phase after an inevitable failure. The former is characterized by reliability, which we determine based on information about cascading failures. The latter is quantified using resilience, which can in turn facilitate comparison of recovery strategies. We illustrate the application of these metrics to a smart grid based on the IEEE 9-bus test system.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126646783","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 presents SMoCoR, a smart mobile contact recommender based on smart phone data. It recommends the most appropriate way to contact friends according to friends' current condition. In no emergency condition, SMoCoR achieves two goals. First, the recommended contacts disturb friends least, that means, it will tell whether it's suitable to call friends. Second, the recommended contact makes the communication information accessible to the friends and gets replies from the friends as soon as possible. For the goals above, SMoCoR takes friends' calendar data and smart phone data as inputs, and after several steps of calculation it will recommend a list of contacts ranked by intelligent algorithm according to the appropriateness. The experimental results based on real-user data show that SMoCoR provides an efficient and accurate means for contact recommendation.
{"title":"SMoCoR: A Smart Mobile Contact Recommender Based on Smart Phone Data","authors":"Xiwei Zhuang, Yanchun Sun, Kui Wei","doi":"10.1145/2677832.2677841","DOIUrl":"https://doi.org/10.1145/2677832.2677841","url":null,"abstract":"This paper presents SMoCoR, a smart mobile contact recommender based on smart phone data. It recommends the most appropriate way to contact friends according to friends' current condition. In no emergency condition, SMoCoR achieves two goals. First, the recommended contacts disturb friends least, that means, it will tell whether it's suitable to call friends. Second, the recommended contact makes the communication information accessible to the friends and gets replies from the friends as soon as possible. For the goals above, SMoCoR takes friends' calendar data and smart phone data as inputs, and after several steps of calculation it will recommend a list of contacts ranked by intelligent algorithm according to the appropriateness. The experimental results based on real-user data show that SMoCoR provides an efficient and accurate means for contact recommendation.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126127533","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}
Jiaxing Zhang, Hanjiao Qiu, Salar Shahini Shamsabadi, R. Birken, G. Schirner
Understanding the future transportation infrastructure performance demands a smart Cyber-Physical Systems (CPS) approach integrating heterogeneous sensors, versatile computing systems, and mobile agents. However, due to sensor versatility and computing intricacy, designing such systems faces challenges of immense complexity in mobile sensor fusion, big data handling, system scalability, and integration. This paper introduces SIROM3, a Scalable Intelligent Roaming Multi-Modal Multi-Sensor framework, for next generation transportation infrastructure performance inspection. SIROM3 offers a scalable and expandable framework through orthogonally abstracting software / hardware structures in a layered Run-Time Environment (RTE), which facilities sensor fusion, distributed computing, communication and mobile services. A Heterogeneous Stream File-system Overlay (HSFO) and a flexible plug-in system (PLEX) are embedded in SIROM3 to simplify big data storage, processing, and correlation. To evaluate the scalability of SIROM, we implemented a mobile sensing system of 30 heterogeneous sensors and 5 computing platforms coordinated by 1 data center. SIROM's expandability is highlighted by adding an advanced radar platform which required less than 50 lines of C++ code for integration. Over 20 terabytes of data covering 300 miles have been collected, aggregated, and fused using SIROM3 for comprehending the pavement dynamics of the entire city of Brockton, MA. SIROM3 offers a unified solution and ideal research platform for rapid, intelligent and comprehensive evaluation of tomorrow's transportation infrastructure performance using heterogeneous systems.
{"title":"SIROM3 -- A Scalable Intelligent Roaming Multi-modal Multi-sensor Framework","authors":"Jiaxing Zhang, Hanjiao Qiu, Salar Shahini Shamsabadi, R. Birken, G. Schirner","doi":"10.1109/COMPSAC.2014.97","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.97","url":null,"abstract":"Understanding the future transportation infrastructure performance demands a smart Cyber-Physical Systems (CPS) approach integrating heterogeneous sensors, versatile computing systems, and mobile agents. However, due to sensor versatility and computing intricacy, designing such systems faces challenges of immense complexity in mobile sensor fusion, big data handling, system scalability, and integration. This paper introduces SIROM3, a Scalable Intelligent Roaming Multi-Modal Multi-Sensor framework, for next generation transportation infrastructure performance inspection. SIROM3 offers a scalable and expandable framework through orthogonally abstracting software / hardware structures in a layered Run-Time Environment (RTE), which facilities sensor fusion, distributed computing, communication and mobile services. A Heterogeneous Stream File-system Overlay (HSFO) and a flexible plug-in system (PLEX) are embedded in SIROM3 to simplify big data storage, processing, and correlation. To evaluate the scalability of SIROM, we implemented a mobile sensing system of 30 heterogeneous sensors and 5 computing platforms coordinated by 1 data center. SIROM's expandability is highlighted by adding an advanced radar platform which required less than 50 lines of C++ code for integration. Over 20 terabytes of data covering 300 miles have been collected, aggregated, and fused using SIROM3 for comprehending the pavement dynamics of the entire city of Brockton, MA. SIROM3 offers a unified solution and ideal research platform for rapid, intelligent and comprehensive evaluation of tomorrow's transportation infrastructure performance using heterogeneous systems.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"CE-32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126545128","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}
In this paper we describe a PhD research plan which focuses on the problem of insular thinking in distributed software development projects and its implications. The objective is to break up insular thinking in distributed agile software development through the targeted application of different media. The result of this work will be a model for distributed agile release planning. We intend to improve agile distributed release planning through the application of this model. Selected parts of the model will be evaluated through a software prototype which uses data of the Ice Breaker System project.
{"title":"A Model for Distributed Agile Release Planning: Doctoral Symposium Paper","authors":"Ingo Richter, Robert Lindermeier, M. Weber","doi":"10.1109/COMPSAC.2014.45","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.45","url":null,"abstract":"In this paper we describe a PhD research plan which focuses on the problem of insular thinking in distributed software development projects and its implications. The objective is to break up insular thinking in distributed agile software development through the targeted application of different media. The result of this work will be a model for distributed agile release planning. We intend to improve agile distributed release planning through the application of this model. Selected parts of the model will be evaluated through a software prototype which uses data of the Ice Breaker System project.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123598664","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}
In order to ensure accessibility of user interface, it is highly recommended to elaborate a generic solution which is compliant to disable user requirements and best accommodates their particular needs. Therefore, we propose, in this paper, a generic MDA-based solution of adapting application's interface to accessibility context. It consists of generating, automatically, accessible adapted User Interfaces. Hence, we propose a multimodel approach by incorporating the modality of interaction into adaptation process. Consequently, based on MDA principals, we develop different meta-model transformations to provide an adapted User Interface model according to recent accessibility context information and a given non adapted User Interface.
{"title":"Generating Accessible Multimodal User Interfaces Using MDA-Based Adaptation Approach","authors":"Lamia Zouhaier, Y. Hlaoui, Leila Jemni Ben Ayed","doi":"10.1109/COMPSAC.2014.76","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.76","url":null,"abstract":"In order to ensure accessibility of user interface, it is highly recommended to elaborate a generic solution which is compliant to disable user requirements and best accommodates their particular needs. Therefore, we propose, in this paper, a generic MDA-based solution of adapting application's interface to accessibility context. It consists of generating, automatically, accessible adapted User Interfaces. Hence, we propose a multimodel approach by incorporating the modality of interaction into adaptation process. Consequently, based on MDA principals, we develop different meta-model transformations to provide an adapted User Interface model according to recent accessibility context information and a given non adapted User Interface.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115109862","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}
Testing in software product line is difficult because variability mechanisms, which is an integral part of software product line development, decrease observability and controllability. To cope with this difficulty, this paper proposes adopting test architecture for software product line testing as a way to enhance observability and controllability.
{"title":"Towards Test Architecture Based Software Product Line Testing","authors":"Jihyun Lee, Sungwon Kang","doi":"10.1109/COMPSAC.2014.83","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.83","url":null,"abstract":"Testing in software product line is difficult because variability mechanisms, which is an integral part of software product line development, decrease observability and controllability. To cope with this difficulty, this paper proposes adopting test architecture for software product line testing as a way to enhance observability and controllability.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130896888","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}
M. García-Valls, Diego Perez-Palacin, R. Mirandola
The inherent dynamic nature of Cyber Physical Systems (CPS) requires novel mechanisms to support their evolution over their operation life time. Though typically the development of CPS integrates the software (cyber) design with the physical domain, this contribution concentrates mainly on another essential integration plane: The software design level. This paper presents an approach to support the adaptation process of CPS required by their evolution. It is based on the run-time generation of verified system configurations and their analysis to guide the evolution of the system through correct configurations that meet the functional and timing requirements of the new situations. We show its feasibility by presenting and analyzing the results of the execution for a reduced-scale time-sensitive application that employs a complex verification technique to model functional and temporal aspects of the system.
{"title":"Time-Sensitive Adaptation in CPS through Run-Time Configuration Generation and Verification","authors":"M. García-Valls, Diego Perez-Palacin, R. Mirandola","doi":"10.1109/COMPSAC.2014.55","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.55","url":null,"abstract":"The inherent dynamic nature of Cyber Physical Systems (CPS) requires novel mechanisms to support their evolution over their operation life time. Though typically the development of CPS integrates the software (cyber) design with the physical domain, this contribution concentrates mainly on another essential integration plane: The software design level. This paper presents an approach to support the adaptation process of CPS required by their evolution. It is based on the run-time generation of verified system configurations and their analysis to guide the evolution of the system through correct configurations that meet the functional and timing requirements of the new situations. We show its feasibility by presenting and analyzing the results of the execution for a reduced-scale time-sensitive application that employs a complex verification technique to model functional and temporal aspects of the system.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131077377","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}
Luxi Chen, Linpeng Huang, Chen Li, L. Wu, Weichao Luo
Architectural design modeling has emerged as a discipline in a complex system development. To implement early safety analysis, techniques for architectural design have been extended to concern the safety property. Various safety standard profiles, quantitative and qualitative analysis methods are proposed for assessment. However, few of them focuses on the feedback of the safety properties or analysis results on the adjustment to improve original architecture. In this paper, we present an approach to combine safety analysis with architecture modeling. First, we extend the meta-model of our architecture description language - Breeze/ADL with safety elements for design. Second, safety specifications are generated from Breeze/ADL, and then to be converted into Open FTA for FTA (Fault Tree Analysis). Our Breeze/ADL also supports rule definitions to adjust the architecture, to cope with safety problems. Moreover, model checking will be applied to verify the correctness of the adjustment. Finally, the tool Breeze/SA demonstrates the feasibility of our approach.
在复杂系统开发中，建筑设计建模已经成为一门学科。为了实现早期的安全分析，建筑设计的技术已经扩展到关注安全属性。提出了各种安全标准概况、定量和定性分析方法进行评价。然而，很少有人关注安全性能的反馈或分析结果的调整，以改善原架构。本文提出了一种将安全分析与体系结构建模相结合的方法。首先，我们扩展了体系结构描述语言的元模型——微风/ADL，其中包含了用于设计的安全元素。其次，从Breeze/ADL中生成安全规范，然后转换成Open FTA用于FTA (Fault Tree Analysis)。我们的Breeze/ADL还支持规则定义来调整体系结构，以处理安全问题。此外，将采用模型检查来验证调整的正确性。最后，工具Breeze/SA演示了我们方法的可行性。
{"title":"Design and Safety Analysis for System Architecture: A Breeze/ADL-Based Approach","authors":"Luxi Chen, Linpeng Huang, Chen Li, L. Wu, Weichao Luo","doi":"10.1109/COMPSAC.2014.35","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.35","url":null,"abstract":"Architectural design modeling has emerged as a discipline in a complex system development. To implement early safety analysis, techniques for architectural design have been extended to concern the safety property. Various safety standard profiles, quantitative and qualitative analysis methods are proposed for assessment. However, few of them focuses on the feedback of the safety properties or analysis results on the adjustment to improve original architecture. In this paper, we present an approach to combine safety analysis with architecture modeling. First, we extend the meta-model of our architecture description language - Breeze/ADL with safety elements for design. Second, safety specifications are generated from Breeze/ADL, and then to be converted into Open FTA for FTA (Fault Tree Analysis). Our Breeze/ADL also supports rule definitions to adjust the architecture, to cope with safety problems. Moreover, model checking will be applied to verify the correctness of the adjustment. Finally, the tool Breeze/SA demonstrates the feasibility of our approach.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134090961","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}
In recent years, mobility models have been reconsidered based on findings by analyzing some big datasets collected by GPS sensors, cell phone call records, and Geotagging. To understand the fundamental statistical properties of the frequency of serendipitous human encounters, we conducted experiments to collect long-term data on human contact using short-range wireless communication devices which many people frequently carry in daily life. By analyzing the data we showed that the majority of human encounters occur once-in-an-experimental-period: they are Ichi-go Ichi-e. We also found that the remaining more frequent encounters obey a power-law distribution: they are scale-free. To theoretically find the origin of these properties, we introduced as a minimal human mobility model, Homesick Lévy walk, where the walker stochastically selects moving long distances as well as Lévy walk or returning back home. Using numerical simulations and a simple mean-field theory, we offer a theoretical explanation for the properties to validate the mobility model. The proposed model is helpful for evaluating long-term performance of routing protocols in delay tolerant networks and mobile opportunistic networks better since some utility-based protocols select nodes with frequent encounters for message transfer.
{"title":"Homesick Lévy Walk: A Mobility Model Having Ichi-Go Ichi-e and Scale-Free Properties of Human Encounters","authors":"A. Fujihara, H. Miwa","doi":"10.1109/COMPSAC.2014.81","DOIUrl":"https://doi.org/10.1109/COMPSAC.2014.81","url":null,"abstract":"In recent years, mobility models have been reconsidered based on findings by analyzing some big datasets collected by GPS sensors, cell phone call records, and Geotagging. To understand the fundamental statistical properties of the frequency of serendipitous human encounters, we conducted experiments to collect long-term data on human contact using short-range wireless communication devices which many people frequently carry in daily life. By analyzing the data we showed that the majority of human encounters occur once-in-an-experimental-period: they are Ichi-go Ichi-e. We also found that the remaining more frequent encounters obey a power-law distribution: they are scale-free. To theoretically find the origin of these properties, we introduced as a minimal human mobility model, Homesick Lévy walk, where the walker stochastically selects moving long distances as well as Lévy walk or returning back home. Using numerical simulations and a simple mean-field theory, we offer a theoretical explanation for the properties to validate the mobility model. The proposed model is helpful for evaluating long-term performance of routing protocols in delay tolerant networks and mobile opportunistic networks better since some utility-based protocols select nodes with frequent encounters for message transfer.","PeriodicalId":106871,"journal":{"name":"2014 IEEE 38th Annual Computer Software and Applications Conference","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134324233","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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