在社交網路中的行動社交網路能夠將那些有著相同興趣但可能互相不認識的一群人串聯在一起且這些人可以是在行走的情境中。行動社交網路提供許多服務，例如讓旅行中的人們在行動社交網路中彼此分享有用的資訊。這篇論文提出一個群集方法，稱為計點式興趣景點的資料分享(CCS-POIS)，這個方法是讓群集領導人透過3G/3.5G/4G行動網路介面下載附近的興趣景點資料，再開啟手持裝置的熱點藉由Wi-Fi將這些資料分享給在群集領導人熱點訊號範圍內且在同一個行動社交網路中的人。這是屬於一種運用適地性服務來下載景點資料與以鄰近為依據來分享下載景點資料的方法。這篇論文(1) 透過全球定位系統取得的位置來搜尋使用者附近的興趣景點、(2) 採用行動社交網路的概念來組織旅行中的群集，每個群集中的領導者會分享他下載的興趣點資料給這群集的其他成員、(3) 提出一個群集方法讓同一行動社交網路中的使用者在旅途中彼此靠近一段時間時可以組成群集、(4) 設計一個適合的計點方法來刺激人們彼此分享資料，這個方法會計算領導人可得到多少點數以及群體成員需要付出多少點數藉此達到公平性。

A Mobile Social Network (MSN) is a social network targeting to link those people who may know or not know with each other and have a common interest even if these people are in the moving situation. MSN can enable many services, such as letting people in an MSN share some useful information during the touring journey. In this work, a clustering scheme called Credit-Centric Sharing of POIs’ Data (CCS-POIS) is proposed to allow a group of persons, who are in the same MSN and are within the Wi-Fi sot spot’ signal coverage of the cluster leader who enables his handheld device’s Wi-Fi hot spot function, to share the nearby Point Of Interests’ (POIs’) data that are downloaded by the cluster leader through his handheld device’s 3G/3.5G/4G cellular network interface. That is, it belongs to the proximity-based sharing of Location-based Service (LBS) data downloading. This work (1) uses GPS to obtain users’ locations in order to search nearby POIs to users, (2) adopts the mechanism of mobile social network to organize touring groups in which each group’s leader can share his downloaded POIs’ data with his group members, (3) proposes a clustering method to organize a group of users who belong to the MSN and are nearby with each other for a while during their touring journey, and (4) devises a suitable credit scheme to calculate the credits that a group leader can get and each group member needs to pay to motivate persons to have the sharing and reach the goal of fairness.

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