With the prevalence of Internet access and online services, various big graphs are
generated in many real applications (eg, online social networks and knowledge graphs). An …

Spatial keyword search has been playing an indispensable role in personalized route
recommendation and geo-textual information retrieval. In this light, we conduct a survey on …

Blockchain has recently triggered extensive attention and concern due to the flourish of
cryptocurrencies and decentralized applications. It can be considered as a database, and is …

With the broad adoption of mobile devices, notably smartphones, keyword-based search for
content has seen increasing use by mobile users, who are often interested in content related …

Identifying prospective customers is an important aspect of marketing research. In this paper,
we provide support for a new type of query, the Reverse Top-k Geo-Social Keyword …

With the gradual growth of road networks, the graphs used to represent road networks have
been becoming larger and larger. It is a preferable choice for the user to outsource large …

A top-k geo-social keyword (TkGSK) query retrieves the objects by considering spatial,
social, and textual constraints. After a user issues an initial TkGSK query and gets back its …

With the ever-growing popularity of smartphone devices in recent years, skyline queries over
spatial Web objects in road networks have received increasing attention. In the literature …

With advances in geo-positioning technologies and mobile internet, location-based services
have attracted much attention, and spatial keyword queries are catching on fast. However …

The collective spatial keyword query (CoSKQ), which takes a location and a set of keywords
as arguments, finds a group of objects that collectively satisfy the query and achieve the …