A large number of distributed applications requires continuous and timely processing of
information as it flows from the periphery to the center of the system. Examples include …

This is a survey of the science and practice of web crawling. While at first glance web
crawling may appear to be merely an application of breadth-first-search, the truth is that …

Search engines often provide featured snippets, which are boxed and placed above other
results with the aim of directly answering user queries. To learn about how users judge the …

Evaluation in Information Retrieval (IR) has long focused on effectiveness and efficiency.
However, new and emerging access tasks now demand alternative evaluation measures …

Despite the abundance of frequently changing information, the Web lacks a publish-
subscribe interface for delivering updates to clients. The use of naıve polling for detecting …

Search engines help people answer consequential questions. Biases in retrieved and
indexed content (eg, skew toward erroneous outcomes that represent deviations from …

Featured snippets that attempt to satisfy users' information needs directly on top of the first
search engine results page (SERP) have been shown to strongly impact users' post-search …

A Web crawler is an essential part of a search engine that procures information
subsequently served by the search engine to its users. As the Web is becoming increasingly …

In this work, we investigate the efficacy of boost interventions rooted in information literacy
principles to enhance user interaction with search results and promote knowledge …

Wide area data delivery requires timely propagation of up-to-date information to thousands
of clients over a wide area network. Applications include web caching, RSS source …