Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Query DSL provides a simple way to build and represent filter expressions for querying application data. It supports a wide range of filter types, from simple equality checks to complex logical ...

Abstract: A Regular Expression, often abbreviated as Regex, are a sequence of characters that define a search pattern. An Non-deterministic Finite Automata (NFA) is a computational machine which can ...