Social tagging on online portals has become a trend now. It has emerged as one of the best
ways of associating metadata with web objects. With the increase in the kinds of web objects …

Abstract Information Retrieval (IR) systems assist users in finding information from the
myriad of information resources available on the Web. A traditional characteristic of IR …

The advent of online social networks has been one of the most exciting events in this
decade. Many popular online social networks such as Twitter, LinkedIn, and Facebook have …

Users' locations are important to many applications such as targeted advertisement and
news recommendation. In this paper, we focus on the problem of profiling users' home …

Use of test collections and evaluation measures to assess the effectiveness of information
retrieval systems has its origins in work dating back to the early 1950s. Across the nearly 60 …

Social networking Web sites are not just places to maintain relationships; they can also be
valuable information sources. However, little is known about how and why people search …

Current practice for evaluating recommender systems typically focuses on point estimates of
user-oriented effectiveness metrics or business metrics, sometimes combined with …

Originating from Facebook, LinkedIn, Twitter, Instagram, YouTube, and many other
networking sites, the social media shared by users and the associated metadata are …

In order to adapt functionality to their individual users, systems need information about these
users. The Social Web provides opportunities to gather user data from outside the system …

This work investigates personalized social search based on the user's social relations--
search results are re-ranked according to their relations with individuals in the user's social …