Recommendation systems play a vital role in many online platforms, with their primary
objective being to satisfy and retain users. As directly optimizing user retention is …

Problem-Based Learning (PBL) is a popular approach to instruction that supports students to
get hands-on training by solving problems. Question Pool websites (QPs) such as …

Accurate churn prediction for retaining users is keenly important for online services because
it determines their survival and prosperity. Recent research has specified social influence to …

Being a leading online service providing both local search and social networking functions,
Foursquare has attracted tens of millions of users all over the world. Understanding the user …

Generally speaking, we can easily specify many causal relationships in the prediction tasks
of ubiquitous computing, such as human activity prediction, mobility prediction, and health …

The seamless textual input in Augmented Reality (AR) is very challenging and essential for
enabling user-friendly AR applications. Existing approaches such as speech input and …

The survival of a business is undeniably pertinent to its success. A key factor contributing to
its continuity depends on its customers. The surge of location-based social networks such as …

A particular phenomenon of interest in Retail Eco-nomics is the spillover effect of anchor
stores (specific stores with a reputable brand) to non-anchor stores in terms of customer …

With the rise of Location-Based Social Networks (LBSNs) and their heavy reliance on User-
Generated Content, it has become essential to attract and keep more users, which makes …

Outstanding users (OUs) denote the influential,“core” or “bridge” users in online social
networks. How to accurately detect and rank them is an important problem for third-party …