Xem 1-20 trên 155 kết quả Space available
  • We present a fast, space efficient and nonheuristic method for calculating the decision function of polynomial kernel classifiers for NLP applications. We apply the method to the MaltParser system, resulting in a Java parser that parses over 50 sentences per second on modest hardware without loss of accuracy (a 30 time speedup over existing methods). The method implementation is available as the open-source splitSVM Java library.

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  • About Del Rey: Lester del Rey (Ramon Felipe Alvarez-del Rey) (June 2, 1915 - May 10, 1993) was an American science fiction author and editor. According to Lawrence Watt-Evans, his birth name was actually Leonard Knapp. Source: Wikipedia Also available on Feedbooks for Del Rey: • Police Your Planet (1956) • The Sky Is Falling (1954) • Victory (1955) • Badge of Infamy (1957) • Dead Ringer (1956) • No Strings Attached (1954) Copyright: Please read the legal notice included in this e-book and/or check the copyright status in your country. ...

    pdf48p transang7 10-01-2013 24 2   Download

  • About Williamson: John Stewart Williamson (April 29, 1908–November 10, 2006), who wrote as Jack Williamson (and occasionally under the pseudonym Will Stewart) was a U.S. writer often referred to as the "Dean of Science Fiction". Source: Wikipedia Also available on Feedbooks for Williamson: • The Cosmic Express (1930) • The Pygmy Planet (1932) Copyright: Please read the legal notice included in this e-book and/or check the copyright status in your country. Note: This book is brought to you by Feedbooks http://www.feedbooks.

    pdf28p transang7 28-01-2013 20 2   Download

  • Context is used in many NLP systems as an indicator of a term’s syntactic and semantic function. The accuracy of the system is dependent on the quality and quantity of contextual information available to describe each term. However, the quantity variable is no longer fixed by limited corpus resources. Given fixed training time and computational resources, it makes sense for systems to invest time in extracting high quality contextual information from a fixed corpus.

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  • Chapter 3 shows you how to turn your topic question into a clear and forceful thesis statement. It also provides you with ways to evaluate your thesis. Have you stated it fairly? Can you prove it in the time and space available?

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  • You need to break down a large subject area into a smaller number of topics, which can be explored in the time and space available. You also need to ask ques¬tions—lots of questions—about your topic. This will help you to focus your thinking and to find an important question to write about.

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  • As populations increase and countries industrialize, the world’s demand for energy increases. Our supply of petroleum and gas is limited, but the photovoltaic cell offers a solution to the problem of a future energy shortage. This cell is already an important source of energy. In fact, it seems almost like magic. The photovoltaic cell changes sunlight directly into energy. Solar energy – energy from the sun – is clean, easily available, inexhaustible, and free, if the equipment is available....

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  • 1. What are the drawbacks of using unnumbered links? Individual WAN interfaces are no longer reachable by ping or telnet if you use unnumbered links. 2. Where should you use unnumbered links in the MPLS backbone? Unnumbered links are recommended in the ATM parts of the MPLS backbone. 3. Where would you use unnumbered links between PE and CE routers? Using unnumbered links between PE and CE routers is highly discouraged. There are, however, applications like dial-up access that benefit from unnumbered links. 4.

    pdf1p trungha 28-08-2009 69 11   Download

  • You know you're getting old when it takes you a day to configure software...especially when bright−eyed kids half your age accomplish the same thing in two hours flat. This was the thought that crossed my mind when I recently decided to set up my machine for JSP (Java Server Pages) development. I got myself set up, made sure there was plenty of space available on my hard drive, and went to work downloading the software off the Web. And I spent the next ten hours wading through acres and acres of incomprehensible detail while trying to get Apache, mod_jserv and Tomcat to talk nice to...

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  • This is a book about PHP, the open source Web scripting language that has joined Perl, ASP, and Java on the select list of languages that can be used to create dynamic online environments. It is also a book about programming. In the space available, it is neither possible to create a complete guide to programming in PHP nor to cover every function and technique that PHP offers. Nevertheless, whether you are an experienced programmer considering a move to PHP or a newcomer to scripting, the steps in this book should provide enough information to get your journey off to a good start....

    pdf180p tailieuvip13 24-07-2012 43 9   Download

  • Power Electronics is the technology associated with efficient conversion, control and conditioning of electric power from its available input into the desired electrical output form. The field of the book is concerned of electrical power processing using electronic devices the key component of which is a switching power converter.

    pdf118p tuanloc_do 04-12-2012 33 8   Download

  • Today, space technology is used as an excellent instrument for Earth observation applications. Data is collected using satellites and other available platforms for remote sensing. Remote sensing data collection detects a wide range of electromagnetic energy which is emitting, transmitting, or reflecting from the Earth's surface. Appropriate detection systems are needed to implement further data processing. Space technology has been found to be a successful application for studying climate change, as current and past data can be dynamically compared.

    pdf266p cucdai_1 16-10-2012 28 6   Download

  • It is increasingly common to find tables with thousands of col- umns – they arise when a particular object has thousands of meas- ured attributes. Not infrequently, many of the values are null. For example, an LDAP object has 7 required and a thousand optional attributes. It is convenient to think of each object as a row of a table, but representing it that way is very inefficient – both in space and...

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  • This book was born from our combined years exploring the use of optically stimulated luminescence (OSL) in different areas of radiation dosimetry with a seemingly unending curiosity about the physics of the process and our aspirations and dreams concerning potential applications. We wished to learn about and understand the challenges presented by the many different areas of dosimetry and how OSL could play a useful role and, of course, we hoped that we would make meaningful contributions to the field.

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  • The credit quality of a bond depends on the issuer’s ability to pay interest on the bond and, ultimately, to repay the principal upon maturity. Independent bond-rating agencies evaluate the financial health of bond issuers and issue alphabetical credit-quality ratings. Usually a lower credit rating means that the issuer must pay higher interest to offset the higher risk that principal and interest won’t be repaid on time. Figure 2 on page 10 describes the ratings used by Moody’s Investors Service, Inc., and Standard & Poor’s Corporation.

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  • In 2007, the Tianjin Binhai New Area (TBNA) and one of its administrative zones—the Tianjin Economic-Technological Development Area (TEDA)—in northeast China asked the RAND Corporation to perform a technology-foresight study to help them develop and implement a strategic vision and plan for economic growth through technological innovation. This book describes the results of that study.

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  • Finally, we refine the accuracy of the computed per- formance model through experimental sampling. We use statistical interpolation between computed and ex- perimental sample points in order to re-approximate the per-application performance models, thus dynamically refining the model. We experimentally show that, by us- ing this method, convergence towards near-optimal con- figurations can be achieved in mere minutes, while an exhaustive exploration of the multi-dimensional search space, representing all possible partitioning configura- tions, would take weeks, or even months.

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  • Although the basic approach appears to be simple, devel- oping a comprehensive solution in which devices rely on the geo-location service to determine white spaces availability is non-trivial. This is because our design introduces some unique challenges that must be overcome. A key issue in a network such as SenseLess is that it must continue to afford the same protection to incumbents as spectrum sensing would. This challenge coupled with all WSDs having to rely on a database to discover white spaces is a significant departure from conventional network designs.

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  • To learn the white space availability at a given location, the database could use one of two schemes: use spectrum measurements for that location, or compute spectrum availabil- ity using RF propagation models. The former, a data-driven approach, requires extensive wardriving measurements at low sensitivity thresholds and may take a long time to be complete. Furthermore, the measurements will have to be repeated when- ever the primary user’s transmission characteristics, such as transmit power, antenna height, license terms, etc., change.

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  • From a system’s perspective, the design of the Sense- Less system is to a large extent governed by constraints that are unique to white spaces. We show that any white space system in which, instead of sensing, devices rely on a third-party entity to learn about white space availability must follow certain design principles. Specifically, we show that in order to achieve sufficiently accurate (i.e., not overly conservative) prediction of white space availability, sophis- ticated and computationally-intensive models must be used.

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