We survey some recent developments in the broad area of automata and logic which are motivated by the advent of XML. In particular, we consider unranked tree automata, tree-walking automata, and automata over infinite alphabets. We focus on their connection with logic and on questions imposed by XML.

As of late, information administration and handling for remote sensor systems are turned into a theme of dynamic exploration in a few fields of software engineering, for example, circulated framework, database frameworks and information mining. WSN creates substantial measure of information streams. Removing data from the information is the most critical undertaking in WSN. Numerous techniques ...

Compositions of well-known tree-to-tree translation models used in statistical machine translation are investigated. Synchronous context-free grammars are closed under composition in both the unweighted as well as the weighted case. In addition, it is demonstrated that there is a close connection between compositions of synchronous tree-substitution grammars and compositions of certain tree tra...

In this paper, a new model of representing semantics called the concept relational tree model is proposed. The model adapts the architecture of expression tree in providing a hierarchical organization to semantics. It is motivated by an approach known as the discourse structure tree that organizes semantics based on preposition and relies on rhetorical relations to define the connection between...

Tree Walking Automata (TWA) have lately received renewed interest thanks to their tight connection to XML. This paper introduces the notion of tree overloops, which is closely related to tree loops, and investigates the use of both for the following common operations on TWA: testing membership, transformation into a Bottom-Up Tree Automaton (BUTA), and testing emptiness. Notably, we argue that ...

A bstract In this sequel to [1], we take up a second approach in bending the Bruhat-Tits tree. Inspired by BTZ black hole connection, demonstrate that one can transplant it tree, at cost of defining novel “exponential function” on p-adic numbers is hinted BT We PGL(2 , Q p ) Wilson lines [2] evaluated analogue connection indeed consistent with correlation functions CFT finite temperatures. thes...

As distributed multimedia applications enter the mainstream, Quality-of-Service (QoS) becomes the central focus of state-of-the-art network devices. The QoS of a network connection is determined on an end-to-end basis by all the network devices through which it traverses. EtheReal is a real-time switched Ethernet architecture that aims to provide QoS guarantees over local area networks, thus of...

In the classical facility location problemwe are given a set of facilities, with associated opening costs, and a set of clients. The goal is to open a subset of facilities, and to connect each client to the closest open facility, so that the total connection and opening cost is minimized. In some applications, however, open facilities need to be connected via an infrastructure. Furthermore, con...