Finite extension

Xem 1-20 trên 22 kết quả Finite extension
  • It is suggested in this paper that t w o - l e v e l morphology theory (Kay, Koskenniemi) can be extended to include morphological tone. This extension treats phonological features as I/O tapes for Finite State Transducers in a parallel sequential incrementation (PSI) architecture; phonological processes (e.g. assimilation) are seen as variants of an elementary unification operation over feature tapes (linear unification phonology, LUP).

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  • A number of grammatical formalisms were introduced to define the syntax of natural languages. Among them are parallel multiple context-free grammars (pmcfg's) and lexical-functional grammars (lfg's). Pmcfg's and their subclass called multiple context-free grammars (mcfg's) are natural extensions of cfg's, and pmcfg's are known to be recognizable in polynomial time. Some subclasses of lfg's have been proposed, but they were shown to generate an AlP-complete language. Finite state translation systems (fts') were introduced as a computational model of transformational grammars. ...

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  • This paper presents a method for learning phonological rules from sample pairs of underlying and surface forms, without negative evidence. The learned rules are represented as finite state transducers that accept underlying forms as input and generate surface forms as output. The algorithm for learning them is an extension of the OSTIA algorithm for learning general subsequential finite state transducers. Although OSTIA is capable of learning arbitrary s.-f.s.

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  • An extension to the GPSG grammatical formalism is solution. proposed, finite allowing non-terminals to consist of sentences sequences of category labels, and allowing those schematic variables to range over such sequences. appropriate.

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  • Attribute grammars are an elegant formalization of the augmented context-free grammars characteristic of most current natural language systems. This paper presents an extension of Earley's algorithm to Knuth's attribute grammars, considering the case of S-attributed grammars. For this case, we study the conditions on the underlying base grammar under which the extended algorithm may be guaranteed to terminate. Finite partitioning of attribute domains is proposed to guarantee the termination of the algorithm, without the need for any restrictions on the context-free base. ...

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  • Implementation of the cryptographic algorisms based on elliptic curves (ECs) over VFFs provides significantly higher performance than the implementation of the EC-based algorithms, in which the ECs are defined over the ground fields and extension finite fields of polynomials.

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  • Graph theory can be said to have its beginning in 1736 when EULER considered the (general case of the) Königsberg bridge problem: Is there a walking route that crosses each of the seven bridges of Königsberg exactly once? (Solutio Problematis ad geometriam situs pertinentis, Commentarii Academiae Scientiarum Imperialis Petropolitanae 8 (1736), pp. 128-140.) It took 200 years before the first book on graph theory was written. This was done by KÖNIG in 1936. (“Theorie der endlichen und unendlichen Graphen”, Teubner, Leipzig, 1936. Translation in English, 1990.

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  • This publication has been designed to share IFAD’s experience with a broader public. It uses examples of instruments, processes and practices selected from IFAD’s project portfolio. The theme of IFAD’s 2001 portfolio review was the environment and natural resource management. Environment and Natural Resource Management: IFAD’s Growing Commitment draws extensively on that progress report, which was presented at the Seventy-Second Session of the IFAD Executive Board in April 2001.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article An Extension of the Invariance Principle for a Class of Differential Equations with Finite Delay

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  • The concepts and methods of topology and geometry are an indispensable part of theoretical physics today. They have led to a deeper understanding of many crucial aspects in condensed matter physics, cosmology, gravity, and particle physics. Moreover, several intriguing connections between only apparently disconnected phenomena have been revealed based on these mathematical tools. Topological and geometrical considerations will continue to play a central role in theoretical physics.

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  • .for Waner/Costenoble’s Finite Mathematics, Fifth Edition Bringing Applied Math to Life Cengage Learning’s Enhanced WebAssign® offers an extensive online homework solution to accompany Waner/Costenoble’s Finite Mathematics, Fifth Edition to encourage the practice that’s so critical for concept mastery. The meticulously crafted pedagogy and exercises in this proven text become even more effective in Enhanced WebAssign, supplemented by multimedia tutorial support and immediate feedback as students complete their assignments.

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  • The conclusion when analysing table 4.2-1 is that it does not make much sense to include dioxins (PCDD/F), PCBs and PAHs in routine monitoring programmes but occasionally it may be motivated with respect to the origin of the sludge. The same applies to TBT, which is indeed very toxic, but at the same time is almost non-existing in sludges because of a use (antifouling) in other contexts. There are environmental reasons for monitoring sludges for detergents like LAS and nonylphenoles because they are high volume chemicals with an extensive household and industrial use.

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  • At the consensus conference Torleif Løvgren from Kongsberg presented his experiences from IT training for senior citizens at Kongsberg - in this report referred to as the Kongsberg model. The model is to a large extent based on voluntary work, idealism and extensive cooperation between different voluntary organisations and municipal bodies.

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  • By writing this monograph, I would like first to provide a useful gathering of some knowledge that everybody involved in the numerical simulation of hyperbolic conservation laws could have learned in journals, in conferences communications, or simply by discussing with researchers or engineers. Most of the notions discussed along the chapters are indeed either extracted from journal articles, or are natural extensions of basic ideas introduced in these articles.

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  • This book is written for marine structural engineers and naval architects, as well as mechanical engineers and civil engineers who work on struch~ral design. The preparation of the book is motivated by extensive use of the finite element analysis and dynamidfatigue analysis, fast paced advances in computer and information technology, and application of risk and reliability methods.

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  • VISUAL FORMALISM, STATECHARTS, AND STATEMATE Finite-state machines (FSMs) have been used extensively in the specification and analysis of many computer-based as well as non-computer-based systems, ranging from electronic circuits to econometric models. They can model in detail the behavior of a system, and several algorithms exist to perform the analysis. Unfortunately, classical state machines such as those employed in the standard, explicit-state CTL model-checking approach [Clarke, Emerson, and Sistla, 1986] lack support for modularity and suffer from exponential-state explosion. ...

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  • VERIFICATION USING TIMED AUTOMATA Finite automata and temporal logics have been used extensively to formally verify qualitative properties of concurrent systems. The properties include deadlock- or livelock-freedom, the eventual occurrence of an event, and the satisfaction of a predicate. The need to reason with absolute time is unnecessary in these applications, whose correctness depends only on the relative ordering of the associated events and actions.

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  • Historic sites are a finite resource which cannot bereplaced once damaged or destroyed.In contrast withsome nature conservation or landscape designations,which may embrace very extensive tracts of land,designated historic sites tend to be more limited inextent.For example,the average area of a scheduledmonument is only 2.5 hectares and the average area of a registered park and garden is 108 hectares.Listedbuildings and their curtilages generally occupy farsmaller areas.

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  • Regular rings were originally introduced by John von Neumann to clarify aspects of operator algebras ([33], [34], [9]). A continuous geometry is an indecomposable, continuous, complemented modular lattice that is not finite-dimensional ([8, page 155], [32, page V]). Von Neumann proved ([32, Theorem 14.1, page 208], [8, page 162]): Every continuous geometry is isomorphic to the lattice of right ideals of some regular ring. The book of K.R.

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  • The problem of transforming a lattice into a non-deterministic finite state automaton is non-trivial. We present a transformation algorithm which tracks, for each node of an automaton under construction, the larcs which it reflects and the lattice nodes at their origins and extremities. An extension of the algorithm permits the inclusion of null, or epsilon, arcs in the output automaton. The algorithm has been successfully applied to lattices derived from dictionaries, i.e. very large corpora of strings. ...

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