Xem 1-20 trên 326 kết quả A new theory
  • In recent years,a great deal of evidence has been collected which gives substantially increased insight into the nature of human speech perception. It is the author's belief that such data can be effectively used to infer much of the structure of a practical speech recognition system. This paper details a new view of the role of structural constraints within the several structural domains (e.g. articulation, phonetics, phonology, syntax, semantics) that must be utilized to infer the desired percept. ...

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  • At the end of the 19-th century, physics was at its most confidence situation. Classical phyics, as formulated in Newton’s law of mechanics and Maxwell’s theory of electromagnetism, have proved very successful in solving every problem. →At that time there seemed to be no question for which physics could not provide an answer !!! But then it came as a great shock when some simple phenomena were observed which could not be explained by classical physics →a new theory, quantum theory, was developed at the beginning of the 20-th century...

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  • This book makes no pretence of giving to the world a new theory of the intellectual operations. Its claim to attention, if it possess any, is grounded on the fact that it is an attempt not to supersede, but to embody and systematize, the best ideas which have been either promulgated on its subject by speculative writers, or conformed to by accurate thinkers in their scientific inquiries.

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  • This essay reflects upon the relationship between the current theory of financial intermediation and real-world practice. Our critical analysis of this theory leads to several building blocks of a new theory of financial intermediation. Current financial intermediation theory builds on the notion that intermediaries serve to reduce transaction costs and informational asymmetries. As developments in information technology, deregulation, deepening of financial markets, etc.

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  • THE recent development of various methods of modulation such as PCM and PPM which exchange bandwidth for signal-to-noise ratio has intensified the interest in a general theory of communication. A basis for such a theory is contained in the important papers of Nyquist1 and Hartley2 on this subject. In the present paper we will extend the theory to include a number of new factors, in particular the effect of noise in the channel, and the savings possible due to the statistical structure of the original message and due to the nature of the final destination of the information....

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  • Research is an activity which people undertake in order to find things in a systematic way as a means of increasing their knowledge base. Dissertations must follow Graduate School guidelines, whereas criteria for style and organization of a research paper are at the discretion of the professor.

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  • The pace and scope of change in the world and in organizations during the past 10 years have been unprecedented. In this environment, staying ahead of the curve and being adequately prepared for work, management, and leadership has been challenging—even daunting. At the same time, a massive shift in the balance of economic power is under way, with many of the world’s largest economies slowing down as other economies continue to grow and gain power, bringing prosperity to many and a new world order.

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  • The publication of the Cooley-Tukey fast Fourier transform (FFT) algorithm in 1965 has opened a new area in digital signal processing by reducing the order of complexity of some crucial computational tasks like Fourier transform and convultion from N 2 to N log 2 , where N is the problem size. The development of the major algorithms (Cooley-Tukey and split-radix FFT, prime factor algorithm and Winograd fast Fourier transform) is reviewed. Then, an attempt is made to indicate the state of the art on the subject, showin the standing of researh, open problems and implementations....

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  • The scope of this book is to demonstrate that we do have an ecosystem theory that can be used to describe ecosystem structure and function. It was previously shown in the book, Integration of Ecosystem Theories: A Pattern (3rd edition, 2002), that the various contributions to systems ecology are consistent and together form a pattern of ecological processes. My book with Yuri Svirezhev, Toward a Thermodynamic Theory of Ecosystems (2004), presented the thermodynamics of this pattern in a mathematical language....

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  • T he impetus to produce this book came in a brief phone call in 1998. Chuck Crumly, of Academic Press, called with an invitation and a deadline. Either The Ecology of Fishes on Coral Reefs, published in 1991, would be allowed to lapse into out-of-print status, or I would agree to produce a second edition. Looking back on all the work, I suspect it might have been wiser to say, "Let her lapse." But I didn't.

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  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí Journal of Operator Theory đề tài: Một tài sản mới của các yếu tố quyết định của một nhiễu loạn của một co yếu....

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  • This volume has two first authors because it is a result of very intensive teamwork between the two authors. We have had three brainstorm meetings, each of approximately one week’s duration. There have been numerous pingpong games (questions–answers–new proposals etc.) on the Internet. All the chapters have major contributions from both of us. We hope that the volume therefore demonstrates a synergistic effect, reflecting the positive teamwork that is behind the volume.

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  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí Journal of Operator Theory đề tài: Một bằng chứng mới của định lý giới hạn Szegö và các kết quả mới cho các nhà khai thác Toeplitz với biểu tượng không liên tục...

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  • Information Theory is one of the few scientific fields fortunate enough to have an identifiable beginning - Claude Shannon's 1948 paper. The story of the evolution of how it progressed from a single theoretical paper to a broad field that has redefined our world is a fascinating one. It provides the opportunity to study the social, political, and technological interactions that have helped guide its development and define its trajectory, and gives us insight into how a new field evolves. We often hear Claude Shannon called the father of the Digital Age.

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  • Virtually every branch of the sciences, engineering, economics, and related fields now discusses or refers to chaos. James Gleick's 1987 book, Chaos: making a new science and a 1988 one-hour television program on chaos aroused many people's curiosity and interest. There are now quite a few books on the subject. Anyone writing yet another book, on any topic, inevitably goes through the routine of justifying it. My justification consists of two reasons

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  • I have had the privilege of translating is, undoubtedly, one of the most remarkable studies of the social and psychological condition of the modern world which has appeared in Europe for many years, and its influence is sure to be lasting and far reaching. Tolstoi's genius is beyond dispute. The verdict of the civilized world has pronounced him as perhaps the greatest novelist of our generation. But the philosophical and religious works of his later years have met with a somewhat indifferent reception.

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  • Abstract Neural architectures have been proposed to navigate mobile robots within several environment definitions. In this paper a new neural modular constructive approach to navigate mobile robots in unknown environments is presented. The problem, in its basic form, consists of defining and executing a trajectory to a predefined goal while avoiding all obstacles, in an unknown environment. Some crucial issues arise when trying to solve this problem, such as an overflow of sensorial information and conflicting objectives.

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  • Lars Ahlfors often spoke of his excitement as a young student listening to Rolf Nevanlinna's lectures on the new theory of meromorphic functions. It was, as he writes in his collected papers, his "first exposure to live mathematics." In his enormously influential research papers and in his equally influential books, Ahlfors shared with the reader, both professional and student, that excitement. The present volume derives from lectures given at Harvard over many years, and the topics would now be considered quite classical.

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  • This paper proposes a new approach for Multi-word Expression (MWE)extraction on the motivation of gene sequence alignment because textual sequence is similar to gene sequence in pattern analysis. Theory of Longest Common Subsequence (LCS) originates from computer science and has been established as affine gap model in Bioinformatics. We perform this developed LCS technique combined with linguistic criteria in MWE extraction.

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  • We propose a model for transfer in machine translation which uses a rewriting system for typed feature structures. The grammar definitions describe transfer relations which are applied on the input structure (a typed feaane structure) by the interpreter to produce all possible transfer pairs. The formalism is based on the semantics of typed feature structures as described in [AR-Kaci 84]. INTRODUCTION We propose a new model for transfer in machine translation of dialogues.

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