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With the increasing of requirements from many aspects, various queries and analyses arise focusing on social network. Queries like finding users, friends or social activities satisfying a certain period gives temporal insights into retrieval or statistics, hence augmenting temporal query capability in such context, namely, temporal social network (TSN), is meaningful. In this paper, we mainly study...
With the development of on-line social networks, more and more users and sellers are interested in group analytics which provides insights into common interests with various relationships. This paper addresses this problem from temporal aspect, i.e., temporal group query (TGQ) which gives people the historical view for group forming and changing. To efficiently achieve our goal, we propose two structures...
With the development of various Cloud platforms, providing spatio-temporal database services is an essential requirement for many applications, e.g., location-based services in Cloud. However, many previous works on processing queries in distributed environment fail to apply to spatio-temporal queries which is a significant role in spatio-temporal database. In this paper, we propose an efficient and...
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