Algorithms are ubiquitous and critical sources of information online, increasingly acting as
gatekeepers for users accessing or sharing information about virtually any topic, including …

Twitter, a microblogging service less than three years old, commands more than 41 million
users as of July 2009 and is growing fast. Twitter users tweet about any topic within the 140 …

Web search is an integral part of our daily lives. Recently, there has been a trend of
personalization in Web search, where different users receive different results for the same …

We revisit a problem introduced by Bharat and Broder almost a decade ago: How to sample
random pages from the corpus of documents indexed by a search engine, using only the …

This work addresses issues related to the design and implementation of focused crawlers.
Several variants of state-of-the-art crawlers relying on web page content and link information …

Social media analytics has drawn new quantitative insights of human activity patterns. Many
applications of social media analytics, from pandemic prediction to earthquake response …

The Memento Project's archive access additions to HTTP have enabled development of new
web archive access user interfaces. After experiencing this web time travel, the in-evitable …

Micro-blogging services such as Twitter allow anyone to publish anything, anytime.
Needless to say, many of the available contents can be diminished as babble or spam …

The impact of published academic research in the sciences and social sciences, when
measured, is commonly estimated by counting citations from journal articles. The Web has …

From the viewpoint of networks, a ranking system for players or teams in sports is equivalent
to a centrality measure for sports networks, whereby a directed link represents the result of a …