Xem 1-14 trên 14 kết quả Derivative feedback
  • The title of the book System, Structure and Control encompasses broad field of theory and applications of many different control approaches applied on different classes of dynamic systems. Output and state feedback control include among others robust control, optimal control or intelligent control methods such as fuzzy or neural network approach, dynamic systems are e.g.

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  • This paper presents an open-domain textual Question-Answering system that uses several feedback loops to enhance its performance. These feedback loops combine in a new way statistical results with syntactic, semantic or pragmatic information derived from texts and lexical databases. The paper presents the contribution of each feedback loop to the overall performance of 76% human-assessed precise answers.

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  • There are obvious reasons for trying to automate the production of multilingual documentation, especially for routine subject-matter in restricted domains (e.g. technical instructions). Two approaches have been adopted: Machine Translation (MT) of a source text, and Multilingual Natural Language Generation (M-NLG) from a knowledge base.

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  • A novel geneZC3H12A, encoding MCP-1-induced protein 1 (MCPIP), was recently identified in human peripheral blood monocytes treated with monocyte chemotactic protein 1 (MCP-1) and in human monocyte-derived macrophages stimulated with interleukin (IL)-1b. These experiments revealed that the gene undergoes rapid and potent transcription induction upon stimulation with proinflammatory molecules, such as MCP-1, IL-1b, tumour necrosis factor aand lipopolysaccharide.

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  • Weblogs and message boards provide online forums for discussion that record the voice of the public. Woven into this mass of discussion is a wide range of opinion and commentary about consumer products. This presents an opportunity for companies to understand and respond to the consumer by analyzing this unsolicited feedback. Given the volume, format and content of the data, the appropriate approach to understand this data is to use large-scale web and text data mining technologies.

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  • The homodimeric 2C-methyl-d-erythritol 4-phosphate cytidylyltransferase contributes to the nonmevalonate pathway of isoprenoid biosynthesis. The crystal structure of the catalytic domain of the recombinant enzyme derived from the plant Arabidopsis thalianahas been solved by molecular replace-ment and refined to 2.0 A˚ resolution.

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  • Boston Children’s Hospital Library’s Resources for Leadership Guide brings together materials found at the hospital library and reputable web sites for managers from all walks of Boston Children’s. The Resources for Leadership Guide includes lists of management books and journals available from the library as well as useful databases, leadership associations, and information about health care reform from the New England Journal of Medicine.

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  • Elucidation of the involvement of protein kinase C subtypes in several dis-eases is an important challenge for the future development of new drug tar-gets. We previously identified the PKI55 protein, which acts as a protein kinase C modulator, establishing a feedback loop of inhibition.

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  • FUZZY DESCRIPTOR SYSTEMS AND CONTROL This chapter deals with a fuzzy descriptor system defined by extending the original Takagi-Sugeno fuzzy model. A number of stability conditions for the fuzzy descriptor system are derived and represented in terms of LMIs. A motivating example for using the fuzzy descriptor system instead of the original Takagi-Sugeno fuzzy model is presented. An LMI-based design approach is employed to find stabilizing feedback gains and a common Lyapunov function.

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  • Practical Considerationsof Wideband AQAM In deriving the upper bound performance of wideband AQAM portrayed in Figure 4.21(b), various assumptions were made and stated in Section 4.3.1. However, in order to provide a more accurate comparison between AQAM and constituent fixed modulation modes, those its assumptions must be justified and their effects have to be investigated. Specifically, perfect, i.e. error-free feedback was assumed for the DFE, while in practice erroneous decision can be fed back, which results in error propagation....

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  • The author would like to thank the people who made this project possible. Notable among these are Cristyn Magnus, who read many early drafts; Aaron Schiller, who was an early adopter and provided considerable, helpful feedback; and Bin Kang, Craig Erb, Nathan Carter, Wes McMichael, and the students of Introduction to Logic, who detected various errors in previous versions of the book. c 2005–2009 by P.D. Magnus. Some rights reserved. You are free to copy this book, to distribute it, to display it, and to make derivative works, under the following conditions: (a) Attribution.

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  • Abstract. We present a hybrid systems solution to the problem of trajectory tracking for a four-wheel steered four-wheel driven mobile robot. The robot is modelled as a non-holonomic dynamic system subject to pure rolling, no-slip constraints. Under normal driving conditions, a nonlinear trajectory tracking feedback control law based on dynamic feedback linearization is sucient to stabilize the system and ensure asymptotically stable tracking.

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  • Marking up search queries with linguistic annotations such as part-of-speech tags, capitalization, and segmentation, is an important part of query processing and understanding in information retrieval systems. Due to their brevity and idiosyncratic structure, search queries pose a challenge to existing NLP tools. To address this challenge, we propose a probabilistic approach for performing joint query annotation. First, we derive a robust set of unsupervised independent annotations, using queries and pseudo-relevance feedback. ...

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  • The CCSS call for students to read grade-appropriate, irregularly spelled words and to decode words in both isolation and text. Students also learn to decode words with common Latin suffixes. They learn to recognize, and know the meaning of most common prefixes and derivational suffixes. Third-grade students understand the basic features of language and apply their knowledge to reading literature and informational text.

    pdf83p chiecxedien 02-01-2013 20 1   Download

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