Information retrieval (IR) has changed considerably in recent years with the expansion of the
World Wide Web and the advent of modern and inexpensive graphical user interfaces and …

The rapid growth of the Web in the past two decades has made it the largest publicly
accessible data source in the world. Web mining aims to discover useful information or …

Due to the rapid growth in the size of the web, web search engines are facing enormous
performance challenges. The larger engines in particular have to be able to process tens of …

Web search engines have stored in their logs information about users since they started to
operate. This information often serves many purposes. The primary focus of this survey is on …

In this paper we study the trade-offs in designing efficient caching systems for Web search
engines. We explore the impact of different approaches, such as static vs. dynamic caching …

The presentation of query biased document snippets as part of results pages presented by
search engines has become an expectation of search engine users. In this paper we explore …

Query processing is a major cost factor in operating large web search engines. In this paper,
we study query result caching, one of the main techniques used to optimize query …

The study of temporal dynamics and its impact can be framed within the so-called temporal
IR approaches, which explain how user behavior, document content and scale vary with …

Cloud services accessed through mobile devices suffer from high network access latencies
and are constrained by energy budgets dictated by the devices' batteries. Radio and battery …

Continuous growth of the Web and user bases forces web search engine companies to
make costly investments on very large compute infrastructures. The scalability of these …