The querying and analysis of data streams has been a topic of much recent interest,
motivated by applications from the fields of networking, web usage analysis, sensor …

Materialized views are queries whose results are stored and maintained in order to facilitate
access to data in their underlying base tables. In the SQL setting, they are now considered a …

We study the problem of finding and monitoring fixed-size subgraphs in a continually
changing large-scale graph. We present the first approach that (i) performs worst-case …

Given a dataset P and a preference function f, a top-k query retrieves the k tuples in P with
the highest scores according to f. Even though the problem is well-studied in conventional …

This paper introduces RankSQL, a system that provides a systematic and principled
framework to support efficient evaluations of ranking (top-k) queries in relational database …

Data stream management (DSM) for cyber-physical systems (CPSs) provides good quality
care services in the medical domain. This is a very prominent field of research that includes …

Rank-aware query processing has become essential for many applications that return to the
user only the top-k objects based on the individual user's preferences. Top-k queries have …

Preferences have been traditionally studied in philosophy, psychology, and economics and
applied to decision making problems. Recently, they have attracted the attention of …

Skyline and top-k queries are two popular operations for preference retrieval. In practice,
applications that require these operations usually provide numerous candidate attributes …

This is an introduction to multicast routing, which is the study of methods for routing from one
source to many destinations, or from many sources to many destinations. Multicast is …