Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061021
Jae Yeon Ju, Jaebin Yoo, Jooyeon Lee, H. Kwon
An interesting phenomenon of virtual communication in modern society is that people feel incongruity between virtuality and reality while using SNS. People lose interest in direct communication with their local community at shared places. To solve this social issue, we used visual ethnography to observe how people respond to certain factors and form empathy with their communities on both offline and online. Using it as a base study, we developed a research for detailed empathy-forming mechanism. We then designed SNS that forms empathy on location-based communication in Smart City.
{"title":"Breadcrumb SNS: Asynchronous empathy chat for Smart City residents","authors":"Jae Yeon Ju, Jaebin Yoo, Jooyeon Lee, H. Kwon","doi":"10.1109/ICMU.2015.7061021","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061021","url":null,"abstract":"An interesting phenomenon of virtual communication in modern society is that people feel incongruity between virtuality and reality while using SNS. People lose interest in direct communication with their local community at shared places. To solve this social issue, we used visual ethnography to observe how people respond to certain factors and form empathy with their communities on both offline and online. Using it as a base study, we developed a research for detailed empathy-forming mechanism. We then designed SNS that forms empathy on location-based communication in Smart City.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123797280","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061045
Kazuya Murata, T. Fujimoto
Recently, the most familiar electronic equipment has a “cellular phone”. By the development of the smart phone that is the form of a new cellular phone, the diffusion rate of the cellar phone increases now. Particularly, in the young generation such as university students, there are a great many possession rate of the smart phone. Form this, there is the university carrying out a class using smart phone that the student possesses experimentally. However, Recently there is the problem with the smart phone. It is a problem called “Inappropriate use” at the time of the class. Currently, in our research, we solve this problem and build environmental system “Integrative Education Environmental System” that can use a smart phone by a class. In this paper, we write down a summary of environmental system and example the operational model.
{"title":"Prototype development of “Integrative Education Environmental System using smart phone” and proposal of operational model","authors":"Kazuya Murata, T. Fujimoto","doi":"10.1109/ICMU.2015.7061045","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061045","url":null,"abstract":"Recently, the most familiar electronic equipment has a “cellular phone”. By the development of the smart phone that is the form of a new cellular phone, the diffusion rate of the cellar phone increases now. Particularly, in the young generation such as university students, there are a great many possession rate of the smart phone. Form this, there is the university carrying out a class using smart phone that the student possesses experimentally. However, Recently there is the problem with the smart phone. It is a problem called “Inappropriate use” at the time of the class. Currently, in our research, we solve this problem and build environmental system “Integrative Education Environmental System” that can use a smart phone by a class. In this paper, we write down a summary of environmental system and example the operational model.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114286380","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061037
K. Srisomboon, A. Prayote, Wilaiporn Lee
In this paper, we propose double constraints adaptive energy detection (DCAED) for spectrum sensing. DCAED adapts the threshold by exploiting the interdependent between Pfa and Pd. DCAED overcomes a demerit of ED and AED in tradeoff between Pfa and Pd. The simulation results show that DCAED gives the highest detection rate, therefore the PU has the maximum protection from harmful interference. The DCAED consumes short sensing time and gives the low of false alarm rate, the SU accordingly has more opportunities to use the channel and also maintain the throughput nearly at the same rate as the other ED techniques.
{"title":"Double constraints adaptive energy detection for spectrum sensing in cognitive radio networks","authors":"K. Srisomboon, A. Prayote, Wilaiporn Lee","doi":"10.1109/ICMU.2015.7061037","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061037","url":null,"abstract":"In this paper, we propose double constraints adaptive energy detection (DCAED) for spectrum sensing. DCAED adapts the threshold by exploiting the interdependent between Pfa and Pd. DCAED overcomes a demerit of ED and AED in tradeoff between Pfa and Pd. The simulation results show that DCAED gives the highest detection rate, therefore the PU has the maximum protection from harmful interference. The DCAED consumes short sensing time and gives the low of false alarm rate, the SU accordingly has more opportunities to use the channel and also maintain the throughput nearly at the same rate as the other ED techniques.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134315781","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061022
K. Srisomboon, A. Prayote, Wilaiporn Lee
The robustness to uncertainty of noise power is one of main challenges to spectrum sensing technique. Since the occurrence of noise power uncertainty causes the detection performance of spectrum sensing techniques significantly degrade. In this paper, we propose two novel schemes of two-stage spectrum sensing for cognitive radio under environment as noise power uncertainty. The two-stage spectrum sensing technique combines two conventional spectrum sensing techniques to perform spectrum sensing by exploiting their individual advantages. The proposed two-stage spectrum sensing scheme exploits the merits of ED, MME and CAV techniques to determine the existence of the primary user. The ED performs spectrum sensing within a short time and offers a reliable detection at high SNRs condition. MME and CAV are robust to noise power uncertainty. Due to the combination of these techniques, the proposed schemes offer much more reliable detection when the uncertainty of noise power occurs. Even though the proposed technique takes the longest time in sensing period among two-stage spectrum sensing techniques, it is worth using this period of time to protect the primary user from harmful interference caused by the secondary user.
{"title":"Two-stage spectrum sensing for cognitive radio under noise uncertainty","authors":"K. Srisomboon, A. Prayote, Wilaiporn Lee","doi":"10.1109/ICMU.2015.7061022","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061022","url":null,"abstract":"The robustness to uncertainty of noise power is one of main challenges to spectrum sensing technique. Since the occurrence of noise power uncertainty causes the detection performance of spectrum sensing techniques significantly degrade. In this paper, we propose two novel schemes of two-stage spectrum sensing for cognitive radio under environment as noise power uncertainty. The two-stage spectrum sensing technique combines two conventional spectrum sensing techniques to perform spectrum sensing by exploiting their individual advantages. The proposed two-stage spectrum sensing scheme exploits the merits of ED, MME and CAV techniques to determine the existence of the primary user. The ED performs spectrum sensing within a short time and offers a reliable detection at high SNRs condition. MME and CAV are robust to noise power uncertainty. Due to the combination of these techniques, the proposed schemes offer much more reliable detection when the uncertainty of noise power occurs. Even though the proposed technique takes the longest time in sensing period among two-stage spectrum sensing techniques, it is worth using this period of time to protect the primary user from harmful interference caused by the secondary user.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133599126","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061048
Atsushi Yonemura, T. Hasegawa, S. Obana
Recently, dynamic content, whose construction is changed dynamically according to an user's request, has been wide-spreading. Since many kinds of dynamic content are served from the origin servers, it is more difficult in general to improve a responsiveness of dynamic content than static one that can be cached at a location close to users. This paper proposes to cache such dynamic content to improve its responsiveness, and describes the design and implementation of our proposed innetwork cache system which can pre-fetch and cache dynamic content near users.
{"title":"Proposal of in-network caching system with dynamic content pre-fetching mechanism","authors":"Atsushi Yonemura, T. Hasegawa, S. Obana","doi":"10.1109/ICMU.2015.7061048","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061048","url":null,"abstract":"Recently, dynamic content, whose construction is changed dynamically according to an user's request, has been wide-spreading. Since many kinds of dynamic content are served from the origin servers, it is more difficult in general to improve a responsiveness of dynamic content than static one that can be cached at a location close to users. This paper proposes to cache such dynamic content to improve its responsiveness, and describes the design and implementation of our proposed innetwork cache system which can pre-fetch and cache dynamic content near users.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121156660","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061020
Wataru Yamada, D. Torii, Haruka Kikuchi, H. Inamura, Keiichi Ochiai, Ken Ohta
This paper describes a method to extract local event information from the micro-blog service Twitter. Twitter holds innumerable user-posted short messages called tweets that cover various topics including local events. Our proposal is composed of three steps: 1) extract tweets related to local events from local tweets by the Support Vector Machine (SVM) approach, 2) identify and extract the venues, names and times of local events mentioned in the tweets by applying Conditional Random Fields (CRF), 3) use the venues and similarity of names to aggregate duplicate local event information. We implement the proposed method and confirm that it extracts local event information with higher precision than the conventional methods.
{"title":"Extracting local event information from micro-blogs for trip planning","authors":"Wataru Yamada, D. Torii, Haruka Kikuchi, H. Inamura, Keiichi Ochiai, Ken Ohta","doi":"10.1109/ICMU.2015.7061020","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061020","url":null,"abstract":"This paper describes a method to extract local event information from the micro-blog service Twitter. Twitter holds innumerable user-posted short messages called tweets that cover various topics including local events. Our proposal is composed of three steps: 1) extract tweets related to local events from local tweets by the Support Vector Machine (SVM) approach, 2) identify and extract the venues, names and times of local events mentioned in the tweets by applying Conditional Random Fields (CRF), 3) use the venues and similarity of names to aggregate duplicate local event information. We implement the proposed method and confirm that it extracts local event information with higher precision than the conventional methods.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131495383","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061019
Zi Wang, R. Shinkuma, Tatsuro Takahashi
Social factors are useful in information and communication research. Researchers have recently been trying to utilize people's social factors on many topics, such as those regarding recommendation systems, decision making, and behavior predictions. However, they have mainly focused on estimating final results of people's decisions or actions, and few of them have ever considered median processes that explain how people's attitudes would change. Furthermore, some realistic factors and questions, such as interactions between people and people and unequal relationships in social ties, that widely exist in our common lives and have significant impacts on attitudes and that influence processes have rarely been well considered. In this paper, we propose a novel way of modeling dynamic attitudes changing on the basis of people's social structures. We defined and used different parameters to test and then validate our ideas. We also compared the results from a method of machine learning and our proposed model. In conclusion, we described why our proposed model had high levels of scalability to suit different and complex social influence cases.
{"title":"Dynamic social influence modeling from perspective of gray-scale mixing process","authors":"Zi Wang, R. Shinkuma, Tatsuro Takahashi","doi":"10.1109/ICMU.2015.7061019","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061019","url":null,"abstract":"Social factors are useful in information and communication research. Researchers have recently been trying to utilize people's social factors on many topics, such as those regarding recommendation systems, decision making, and behavior predictions. However, they have mainly focused on estimating final results of people's decisions or actions, and few of them have ever considered median processes that explain how people's attitudes would change. Furthermore, some realistic factors and questions, such as interactions between people and people and unequal relationships in social ties, that widely exist in our common lives and have significant impacts on attitudes and that influence processes have rarely been well considered. In this paper, we propose a novel way of modeling dynamic attitudes changing on the basis of people's social structures. We defined and used different parameters to test and then validate our ideas. We also compared the results from a method of machine learning and our proposed model. In conclusion, we described why our proposed model had high levels of scalability to suit different and complex social influence cases.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114353247","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061030
Hsiao-Hui Li, Chih-Tsan Chang, Yuan-Hsun Liao
Healthcare technology advances and a growing public health consciousness have increases longevity and quality of human life. A rapidly aging population has increased the demand for long term care services and facilities. To provide the elderly with adequate healthcare services, this work presents an elderly-oriented Long-Term Care(LTC) information system. Based on the demands of the elderly, an innovative application is also developed. This paper develops an APP for elderly and his/her family. The elderly and their families can interact through mobile app. And, their families can see the elderly's current status anytime and anywhere.
{"title":"Using mobile application for Long-Term Care system","authors":"Hsiao-Hui Li, Chih-Tsan Chang, Yuan-Hsun Liao","doi":"10.1109/ICMU.2015.7061030","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061030","url":null,"abstract":"Healthcare technology advances and a growing public health consciousness have increases longevity and quality of human life. A rapidly aging population has increased the demand for long term care services and facilities. To provide the elderly with adequate healthcare services, this work presents an elderly-oriented Long-Term Care(LTC) information system. Based on the demands of the elderly, an innovative application is also developed. This paper develops an APP for elderly and his/her family. The elderly and their families can interact through mobile app. And, their families can see the elderly's current status anytime and anywhere.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122262915","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}
Pub Date : 2015-03-16DOI: 10.1109/ICMU.2015.7061041
Yu-Huei Su, Yaw-Jen Lin, Mei-Ju Su, Heng-Shuen Chen
The purpose of this research is to improve the cognitive and upper extremity functions of the elderly by teaching Erhu via distance learning. In this study Elderly Music Taste Survey showed the preference scores of Taiwanese folk rhyme (M=24.62), popular music (23.46), traditional Chinese music (M=18.92), Chinese folk rhyme (M=14.23), and western classics(M=9.69) respectively. Significant improvement can be observed of both the dominant hand grip strength between pretest (M=20.60) and posttest (M=26.546) (t=2.313, p<; .05), and non-dominant hand grip strength pretest (M=18.369) and posttest (M= 24.708) (t=2.746, p<; .05) of the upper extremities. However the cognitive function test MMSE of the elderly between the pretest (M=27.67) and posttest (M=27.42) revealed no significant difference (t= .256, p= .803). The results were not affected by Gender nor by Age. We conclude that music instrument learning can effectively improve the upper extremity function and maintain the cognitive function of the elderly. By developing distance learning courses with mobile music instructors via both real-time interaction, video on demand demo, and uploads of learning records it can effectively energize the music learning experience of the elderly.
{"title":"Effects of erhu distance learning on cognitive and upper extremity function in elderly","authors":"Yu-Huei Su, Yaw-Jen Lin, Mei-Ju Su, Heng-Shuen Chen","doi":"10.1109/ICMU.2015.7061041","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061041","url":null,"abstract":"The purpose of this research is to improve the cognitive and upper extremity functions of the elderly by teaching Erhu via distance learning. In this study Elderly Music Taste Survey showed the preference scores of Taiwanese folk rhyme (M=24.62), popular music (23.46), traditional Chinese music (M=18.92), Chinese folk rhyme (M=14.23), and western classics(M=9.69) respectively. Significant improvement can be observed of both the dominant hand grip strength between pretest (M=20.60) and posttest (M=26.546) (t=2.313, p<; .05), and non-dominant hand grip strength pretest (M=18.369) and posttest (M= 24.708) (t=2.746, p<; .05) of the upper extremities. However the cognitive function test MMSE of the elderly between the pretest (M=27.67) and posttest (M=27.42) revealed no significant difference (t= .256, p= .803). The results were not affected by Gender nor by Age. We conclude that music instrument learning can effectively improve the upper extremity function and maintain the cognitive function of the elderly. By developing distance learning courses with mobile music instructors via both real-time interaction, video on demand demo, and uploads of learning records it can effectively energize the music learning experience of the elderly.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125614084","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 mobile ad hoc networks (MANETs), success transmission rate (STR), which is defined as the time average of number of successful transmissions per time slot conducted by a network node, is a fundamental performance metric for such networks and can be used to further evaluate other network performance. This paper is focused on an Aloha MANET where the mobility processes of network nodes are mutually independent and lead to a uniform distribution of nodes locations in steady-state. At first, it is proved that as time evolves the concerned network converges in distribution to an independently marked Binomial point process, based on which it is shown how the STR is related to the distributions of distances in the Binomial point process. Due to the difficulty in deriving exact expressions for node distance distribution, an approximation expression to the STR is derived. Finally, simulation results are provided to illustrate the accuracy of the approximation result.
{"title":"Modeling the success transmission rate in Aloha MANETs with Binomial point process","authors":"Yin Chen, Jinxiao Zhu, Yulong Shen, Xiaohong Jiang","doi":"10.1109/ICMU.2015.7061025","DOIUrl":"https://doi.org/10.1109/ICMU.2015.7061025","url":null,"abstract":"In mobile ad hoc networks (MANETs), success transmission rate (STR), which is defined as the time average of number of successful transmissions per time slot conducted by a network node, is a fundamental performance metric for such networks and can be used to further evaluate other network performance. This paper is focused on an Aloha MANET where the mobility processes of network nodes are mutually independent and lead to a uniform distribution of nodes locations in steady-state. At first, it is proved that as time evolves the concerned network converges in distribution to an independently marked Binomial point process, based on which it is shown how the STR is related to the distributions of distances in the Binomial point process. Due to the difficulty in deriving exact expressions for node distance distribution, an approximation expression to the STR is derived. Finally, simulation results are provided to illustrate the accuracy of the approximation result.","PeriodicalId":251023,"journal":{"name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131084397","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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