Xem 1-20 trên 294 kết quả Prediction systems
  • This book provides a wealth of new information, ideas and analysis on some of the key unknowns in hurricane research.

    pdf206p crius75 02-01-2013 32 8   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Assessment of performance of four mortality prediction systems in a Saudi Arabian intensive care unit...

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  • Researchers typically evaluate word prediction using keystroke savings, however, this measure is not straightforward. We present several complications in computing keystroke savings which may affect interpretation and comparison of results. We address this problem by developing two gold standards as a frame for interpretation. These gold standards measure the maximum keystroke savings under two different approximations of an ideal language model. The gold standards additionally narrow the scope of deficiencies in a word prediction system. ...

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  • The public demand for the protection of human and environmental health has led to the establishment of toxicology as the science of the action of chemicals on biological systems. Toxicological research is focused presently very much on the elucidation of the cellular and molecular mechanisms of toxicity and the application of this knowledge in safety evaluation and risk assessment.

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  • This book is about RF system analysis and design at the level that requires an understanding of the interaction between the modules of a system so the ultimate performance can be predicted. It describes concepts that are advanced, that is, beyond those that are more commonly taught, because these are necessary to the understanding of effects encountered in practice. It is about answering questions such as:

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  • Nowadays, embedded systems have permeated various aspects of industry. Therefore, we can hardly discuss our life or society from now on without referring to embedded systems. For wide-ranging embedded systems to continue their growth, a number of high-quality fundamental and applied researches are indispensable. This book addresses a wide spectrum of research topics on embedded systems, including basic researches, theoretical studies, and practical work. The book consists of nineteen chapters.

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  • The wireless era was started by two European scientists, James Clerk Maxwell and Heinrich Rudolf Hertz. In 1864, Maxwell presented Maxwell's equations by unifying the works of Lorentz, Faraday, Ampere, and Gauss. He predicted the propagation of electromagnetic waves in free space at the speed of light. He postulated that light was an electromagnetic phenomenon of a particular wavelength and predicted that radiation would occur at other wavelengths as well. His theory was not well accepted until 20 years later, after Hertz validated the electromagnetic wave (wireless) propagation.

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  • With the advent of powerful computers,the use of mathemmatical models by mathemmaticians,scri-entists,engineers,and researcher has become commonplace.Mathematical models are used for analysis,design,and to predict the behavior of complex These common features provide a unifying framework the systematic and uniform treatment of diverse subject matter which may appear unrelated.

    pdf121p hoang1 31-10-2009 75 12   Download

  • Science progresses by a symbiotic interaction between theory and experiment: theory is used to interpret experimental results and may suggest new experiments; experiment helps to test theoretical predictions and may lead to improved theories. Theoretical Chemistry (including Physical Chemistry and Chemical Physics) provides the concep- tual and technical background and apparatus for the rationalisation of phenomena in the chemical sciences. It is, therefore, a wide ranging subject, reflecting the diversity of molecular and related species and processes arising in chemical systems.

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  • Butterworth-Heinemann is an imprint of Elsevier Science. Copyright © 2002, Elsevier Science (USA). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Recognizing the importance of preserving what has been written, Elsevier-Science prints its books on acid-free paper whenever possible. Library of Congress Cataloging-in-Publication Data Mobley, R. Keith, 1943–.

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  • Weather natural hazards, the environment and climate change are of concern to all of us. Especially, it is essential to understand how human activities might impact the nature. Hence, monitoring, research, and forecasting is of the outmost importance. Furthermore, climate change and pollution of the environment do not obey national borders; so, international collaboration on these issues is indeed extremely important.

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  • Modern complex dynamical systems1 are highly interconnected and mutually interdependent, both physically and through a multitude of information and communication network constraints. The sheer size (i.e., dimensionality) and complexity of these large-scale dynamical systems often necessitates a hierarchical decentralized architecture for analyzing and controlling these systems. Specifically, in the analysis and control-system design of complex large-scale dynamical systems it is often desirable to treat the overall system as a collection of interconnected subsystems.

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  • This monograph discusses U.S. Air Force progress toward implementing sense and respond logistics or, as defined more broadly, sense and respond combat support. It describes some of the research that has been conducted on the military combat support system, focusing on improvements in prediction capability,

    pdf0p xuancoem 01-02-2013 17 4   Download

  • The current RSS polling mechanism has been said to scale well because “its cost is almost directly propor- tional to the number of subscribers” [5]. In fact, linear cost is typically an indicator of poor scaling properties, especially when that cost is focused on one member of a distributed system. It is likely that the further growth of RSS adoption will be badly stunted, without substantial change to the way micronews is distributed.

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  • Prediction of Saccharomyces cerevisiae replication origins Adam M Breier*, Sourav Chatterji† and Nicholas R Cozzarelli‡ Addresses: *Graduate Group in Biophysics, University of California-Berkeley, Berkeley, CA 94720-3204, USA. †Department of Computer Science, University of California-Berkeley, Berkeley, CA 94720-3204, USA. ‡Department of Molecular and Cellular Biology, Barker Hall, University of California-Berkeley, Berkeley, CA 94720-3204, USA. Correspondence: Nicholas R Cozzarelli. E-mail: ncozzare@socrates.berkeley.

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  • This is the first of two reports that address the complex issue of incorporating the needs of climate research into the National Polar-orbiting Operational Environmental Satellite System (NPOESS). NPOESS, which has been driven by the imperative of reliably providing short-term weather information, is itself a union of heretofore separate civilian and military programs. It is a marriage of convenience to eliminate needless duplication and reduce cost, one that appears to be working.

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  • We consider the problem of predicting which words a student will click in a vocabulary learning system. Often a language learner will find value in the ability to look up the meaning of an unknown word while reading an electronic document by clicking the word. Highlighting words likely to be unknown to a reader is attractive due to drawing his or her attention to it and indicating that information is available. However, this option is usually done manually in vocabulary systems and online encyclopedias such as Wikipedia. Furthurmore, it is never on a per-user basis. ...

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  • This paper focuses on the analysis and prediction of so-called aware sites, defined as turns where a user of a spoken dialogue system first becomes aware that the system has made a speech recognition error. We describe statistical comparisons of features of these aware sites in a train timetable spoken dialogue corpus, which reveal significant prosodic differences between such turns, compared with turns that ‘correct’ speech recognition errors as well as with ‘normal’ turns that are neither aware sites nor corrections. ...

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  • In this paper we discuss the use of discourse context in spoken dialogue systems and argue that the knowledge of the domain, modelled with the help of dialogue topics is important in maintaining robustness of the system and improving recognition accuracy of spoken utterances. We propose a topic model which consists of a domain model, structured into a topic tree, and the Predict-Support algorithm which assigns topics to utterances on the basis of the topic transitions described in the topic tree and the words recognized in the input utterance. ...

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  • Online community is an important source for latest news and information. Accurate prediction of a user’s interest can help provide better user experience. In this paper, we develop a recommendation system for online forums. There are a lot of differences between online forums and formal media. For example, content generated by users in online forums contains more noise compared to formal documents. Content topics in the same forum are more focused than sources like news websites.

    pdf10p bunthai_1 06-05-2013 54 3   Download

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