iLife: A Novel Mobile Social Network Services on Mobile Phones

2010 ◽  
Author(s):  
Ting Sun ◽  
Xiaoyu Shi ◽  
Yanming Shen ◽  
Keqiu Li ◽  
Wenyu Qu
Keyword(s):  
Social Network ◽  
Mobile Phones ◽  
Network Services ◽  
Mobile Social Network ◽  
Social Network Services

scholarly journals Privacy-Preserving of Check-in Services in MSNS Based on a Bit Matrix

2015 ◽  
Vol 15 (2) ◽  
pp. 111-118
Author(s):  
Chen Wen
Keyword(s):  
Social Network ◽  
Network Services ◽  
Mobile Social Network ◽  
Personal Privacy ◽  
Privacy Requirements ◽  
Privacy Leakage ◽  
Social Network Services ◽  
Real World Datasets ◽  
Method Accuracy ◽  
The Cost

Abstract Check-in service, being one of the most popular services in Mobile Social Network Services (MSNS), has serious personal privacy leakage threats. In this paper check-in sequences of pseudonym users were buffered, and a bit matrix for buffered check-in sequences was built, which can achieve privacy guarantee of k-anonymity. The method guarantees that the number of lost check-in locations is minimized while satisfying users’ privacy requirements. Besides, it also reduces the cost of finding a trajectory k-anonymity set. At last, the results of a set of comparative experiments with (k, δ)-anonymity on real world datasets show the method accuracy and efficiency.

Factors affecting the diffusion of mobile social network services in an aging society: value of informative, hedonic and ubiquitous services

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hyeyoon Bae ◽  
Sang Hyun Jo ◽  
Hyun Joo Jung ◽  
Euehun Lee
Keyword(s):  
Older Adults ◽  
Social Network ◽  
Mobile Services ◽  
Network Services ◽  
Mobile Social Network ◽  
Middle Aged ◽  
Content Type ◽  
Factors Affecting ◽  
Continued Use ◽  
Social Network Services

Purpose This paper aims to identify factors affecting the continued intention to use mobile social network services (m-SNS) among middle-aged and older adults in Korea, based on the focal characteristics of mobile services and SNS. Design/methodology/approach Data were collected through an online questionnaire to understand m-SNS usage from 358 people aged over 40 years in Korea. Findings Results show that middle-aged and older users of m-SNS are strongly motivated to seek information; they prefer to use m-SNS on a habitual basis because of the ubiquitous connectivity of mobile services. Furthermore, they perceive the usefulness of m-SNS in expanding their social networks. These results can be used to identify factors that affect continued use of m-SNS by the middle-aged and older generation in Korea. Originality/value This paper expands the literature on SNS acceptance among middle-aged and older adults, the population that, in future, is expected to constitute the majority of m-SNS users. This paper can also help understand factors that affect mature consumers’ continued use of m-SNS.

scholarly journals Association between Excessive Use of Mobile Phone and Insomnia and Depression among Japanese Adolescents

2017 ◽  
Author(s):  
Tamura Haruka ◽  
Tomoko Nishida ◽  
Akiyo Tsuji ◽  
Hisataka Sakakibara
Keyword(s):  
High School ◽  
High School Students ◽  
Social Network ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Network Services ◽  
School Students ◽  
Mobile Phone Use ◽  
Social Network Services ◽  
Senior High School Students

Adolescents spend an increasing amount of time on mobile phones. The aim of this study was to assess the relationship between duration of mobile phone use and insomnia and depression in senior high school students. The cross-sectional study was conducted on 295 senior high school students in Japan. Mobile phones were owned by 98.6% of students; 58.6% of students used mobile phones for more than 2 h daily and 10.5% used them for 5 h daily. The risk of insomnia was significantly high in students who used mobile phones for 5 h or more (OR: 3.89 [95% CI: 1.21-12.49]). There was no significant association between depression and duration of mobile phone use. However, individuals who spent 120 min or more using mobile phones for social network services (OR: 3.63 [1.20-10.98]) and online chats (OR: 3.14 [1.42-6.95]) were at risk for depression. Excessive mobile phone use is associated with unhealthy sleep habits and insomnia. Moreover, the excessive use of the social network services and online chats are related to depression rather than duration of mobile phone use. Adolescents should use mobile phones appropriately to avoid sleep disturbances and the impairment of mental health.

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