Titlebook: Language, Culture, Computation: Computing - Theory and Technology; Essays Dedicated to Nachum Dershowitz,Ephraim Nissan Book 2014 Springer

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Topological Complexity of Context-Free ,-Languages: A Surveyf infinite words. In particular, we consider the Borel hierarchy and the Wadge hierarchy of non-deterministic or deterministic context-free .-languages. We study also decision problems, the links with the notions of ambiguity and of degrees of ambiguity, and the special case of .-powers.

ENACT

From Löwenheim to PSL and SVAd up yielding by the 21 Century industrial-standard property-specification languages. This development was enabled by the equally unlikely transformation of the mathematical machinery of automata on infinite words, introduced in the early 1960s for second-order logic, into effective algorithms for m

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Reactivity and Grammars: An Explorationguage using a grammar, all structures remain fixed except for the intermediate strings which are changed only by the replacement of substrings. By introducing a more dynamic view of this process, we may allow the grammar to change in various ways as the derivation proceeds, or we may change the noti

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Immunity against Local Influence. A vertex . is said to be . by the coalition . if the majority of its neighbors are from .. Let .(.,.) denote the set of vertices controlled by . in .. Previous studies focused on constructions allowing small coalitions to control many vertices, and provided tight bounds for the maximum possible si

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Introduction

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Four Apt Elementary Examples of Recursionlve any sophisticated algorithms, data structures, or mathematical problems. The examples are two forms of writing numbers in words, coalescing page references for an index, and finding unclosed . blocks.

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Integrating a Lightweight Information Agent with the Cyc Knowledge Basesites, with Cyc, a huge knowledge base and reasoning engine. Placing an information agent into a large ontology requires careful planning and non-trivial overhead. Once integrated, however, a synergy occurs as the existing knowledge in the ontology is brought to bear on the new information provided.