To meet the requirement of social influence analytics in various applications, the problem of
influence maximization has been studied in recent years. The aim is to find a limited number …

Result diversification is an important aspect in web-based search, document summarization,
facility location, portfolio management, and other applications. Given a set of ranked results …

The set of answers to a query may be very large, potentially overwhelming users when
presented with the entire set. In such cases, presenting only a small subset of the answers to …

While keyword query empowers ordinary users to search vast amount of data, the ambiguity
of keyword query makes it difficult to effectively answer keyword queries, especially for short …

The $ k $-Maximum Inner Product Search ($ k $ MIPS) serves as a foundational component
in recommender systems and various data mining tasks. However, while most existing $ k …

Skyline queries have attracted considerable attention by the database community during the
last decade, due to their applicability in a series of domains. However, most existing works …

Socially tenuous groups (or simply tenuous groups) in a social network/graph refer to
subgraphs with few social interactions and weak relationships among members. However …

How to target the users' demands faster and more accurately has become a hot issue in the
domain of image retrieval. Most of the existing techniques focus on retrieving the most …

In this paper, given a product database and a set of customer preferences, we address the
problem of discovering a bounded set of r diverse products that attract the interests of …

To many location-based service applications that prefer diverse results, finding locations that
are spatially diverse and close in proximity to a query point (eg, the current location of a …