This book is a guide to concepts and practice in numerical algebraic geometry ? the solution of systems of polynomial equations by numerical methods. Through numerous examples, the authors show how to apply the well-received and widely used open-source Bertini software package to compute solutions, including a detailed manual on syntax and usage options. The authors also maintain a complementary web page where readers can find supplementary materials and Bertini input files. Numerically Solving Polynomial Systems with Bertini approaches numerical algebraic geometry from a user's point of view with numerous examples of how Bertini is applicable to polynomial systems. It treats the fundamental task of solving a given polynomial system and describes the latest advances in the field, including algorithms for intersecting and projecting algebraic sets, methods for treating singular sets, the nascent field of real numerical algebraic geometry, and applications to large polynomial systems arising from differential equations. Those who wish to solve polynomial systems can start gently by finding isolated solutions to small systems, advance rapidly to using algorithms for finding positive-dimensional solution sets (curves, surfaces, etc.), and learn how to use parallel computers on large problems. These techniques are of interest to engineers and scientists in fields where polynomial equations arise, including robotics, control theory, economics, physics, numerical PDEs, and computational chemistry.
The purpose of this study, commissioned by the Army, was to document the process by which the Congressional Medal of Honor was awarded from December 7, 1941, through September 1, 1948; to identify units in which African Americans served; to identify by name all black soldiers whose names were submitted for the medal and to document any errors in the processing of their nominations; and to compile a list of all black soldiers who received the Distinguished Service Cross, the second highest award. Based on this work, in January 1997 President Clinton awarded seven African Americans the Medal of Honor. The authors were selected by Shaw University of Raleigh, North Carolina, to conduct this study under a United States Army contract.
Many existing information retrieval (IR) systems are surprisingly ineffective at finding documents relevant to particular topics. Traditional systems are extremely brittle, failing to retrieve relevant documents unless the user's exact search string is found. They support only the most primitive trial-and-error interaction with their users and are also static. Even systems with so-called "relevance feedback" are incapable of learning from experience with users. SCALIR (a Symbolic and Connectionist Approach to Legal Information Retrieval) -- a system for assisting research on copyright law -- has been designed to address these problems. By using a hybrid of symbolic and connectionist artificial intelligence techniques, SCALIR develops a conceptual representation of document relationships without explicit knowledge engineering. SCALIR's direct manipulation interface encourages users to browse through the space of documents. It then uses these browsing patterns to improve its performance by modifying its representation, resulting in a communal repository of expertise for all of its users. SCALIR's representational scheme also mirrors the hybrid nature of the Anglo-American legal system. While certain legal concepts are precise and rule-like, others -- which legal scholars call "open-textured" -- are subject to interpretation. The meaning of legal text is established through the parallel and distributed precedence-based judicial appeal system. SCALIR represents documents and terms as nodes in a network, capturing the duality of the legal system by using symbolic (semantic network) and connectionist links. The former correspond to a priori knowledge such as the fact that one case overturned another on appeal. The latter correspond to statistical inferences such as the relevance of a term describing a case. SCALIR's text corpus includes all federal cases on copyright law. The hybrid representation also suggests a way to resolve the apparent incompatibility between the two prominent paradigms in artificial intelligence, the "classical" symbol-manipulation approach and the neurally-inspired connectionist approach. Part of the book focuses on a characterization of the two paradigms and an investigation of when and how -- as in the legal research domain -- they can be effectively combined.
This fourth edition provides an updated look at information organization, featuring coverage of the Semantic Web, linked data, and EAC-CPF; new metadata models such as IFLA-LRM and RiC; and new perspectives on RDA and its implementation. This latest edition of The Organization of Information is a key resource for anyone in the beginning stages of their LIS career as well as longstanding professionals and paraprofessionals seeking accurate, clear, and up-to-date guidance on information organization activities across the discipline. The book begins with a historical look at information organization methods, covering libraries, archives, museums, and online settings. It then addresses the types of retrieval tools used throughout the discipline—catalogs, finding aids, indexes, bibliographies, and search engines—before describing the functionality of systems, explaining the basic principles of system design, and defining how they affect information organization. The principles and functionality of metadata is next, with coverage of the types, functions, tools, and models (particularly FRBR, IFLA-LRM, RDF) and how encoding works for use and sharing—for example, MARC, XML schemas, and linked data approaches. The latter portion of the resource describes specific activities related to the creation of metadata for resources. These chapters offer an overview of the major issues, challenges, and standards used in the information professions, addressing topics such as resource description (including standards found in RDA, DACS, and CCO), access points, authority control, subject analysis, controlled vocabularies—notably LCSH, MeSH, Sears, and AAT—and categorization systems such as DDC and LCC.
AN UPDATED GUIDE TO STATISTICAL MODELING TECHNIQUES USED IN THE SOCIAL AND NATURAL SCIENCES This revised and updated second edition of Applied Univariate, Bivariate, and Multivariate Statistics: Understanding Statistics for Social and Natural Scientists, with Applications in SPSS and R contains an accessible introduction to statistical modeling techniques commonly used in the social and natural sciences. The text offers a blend of statistical theory and methodology and reviews both the technical and theoretical aspects of good data analysis. Featuring applied resources at various levels, the book includes statistical techniques using software packages such as R and SPSS®. To promote a more in-depth interpretation of statistical techniques across the sciences, the book surveys some of the technical arguments underlying formulas and equations. The second edition has been designed to be more approachable by minimizing theoretical or technical jargon and maximizing conceptual understanding with easy-to-apply software examples. This important text: Offers demonstrations of statistical techniques using software packages such as R and SPSS® Contains examples of hypothetical and real data with statistical analyses Provides historical and philosophical insights into many of the techniques used in modern science Includes a companion website that features further instructional details, additional data sets, and solutions to selected exercises Written for students of social and applied sciences, Applied Univariate, Bivariate, and Multivariate Statistics, Second Edition offers a thorough introduction to the world of statistical modeling techniques in the sciences.
How parents and educators can teach kids to love reading in the digital age Everyone agrees that reading is important, but kids today tend to lose interest in reading before adolescence. In Raising Kids Who Read, bestselling author and psychology professor Daniel T. Willingham explains this phenomenon and provides practical solutions for engendering a love of reading that lasts into adulthood. Like Willingham's much-lauded previous work, Why Don't Students Like School?, this new book combines evidence-based analysis with engaging, insightful recommendations for the future. Intellectually rich argumentation is woven seamlessly with entertaining current cultural references, examples, and steps for taking action to encourage reading. The three key elements for reading enthusiasm—decoding, comprehension, and motivation—are explained in depth in Raising Kids Who Read. Teachers and parents alike will appreciate the practical orientation toward supporting these three elements from birth through adolescence. Most books on the topic focus on early childhood, but Willingham understands that kids' needs change as they grow older, and the science-based approach in Raising Kids Who Read applies to kids of all ages. A practical perspective on teaching reading from bestselling author and K-12 education expert Daniel T. Willingham Research-based, concrete suggestions to aid teachers and parents in promoting reading as a hobby Age-specific tips for developing decoding ability, comprehension, and motivation in kids from birth through adolescence Information on helping kids with dyslexia and encouraging reading in the digital age Debunking the myths about reading education, Raising Kids Who Read will empower you to share the joy of reading with kids from preschool through high school.
A new edition of this best-selling textbook reintroduces the topic of library cataloging from a fresh, modern perspective. Not many books merit an eleventh edition, but this popular text does. Newly updated, Introduction to Cataloging and Classification provides an introduction to descriptive cataloging based on contemporary standards, explaining the basic tenets to readers without previous experience, as well as to those who merely want a better understanding of the process as it exists today. The text opens with the foundations of cataloging, then moves to specific details and subject matter such as Functional Requirements for Bibliographic Records (FRBR), Functional Requirements for Authority Data (FRAD), the International Cataloging Principles (ICP), and RDA. Unlike other texts, the book doesn't presume a close familiarity with the MARC bibliographic or authorities formats; ALA's Anglo-American Cataloging Rules, 2nd Edition, revised (AACR2R); or the International Standard Bibliographic Description (ISBD). Subject access to library materials is covered in sufficient depth to make the reader comfortable with the principles and practices of subject cataloging and classification. In addition, the book introduces MARC, BIBFRAME, and other approaches used to communicate and display bibliographic data. Discussions of formatting, presentation, and administrative issues complete the book; questions useful for review and study appear at the end of each chapter.
This book provides a systematic scientific approach to the understanding of hydraulic fracturing (fracking) as a hydrocarbon extraction technology and its impact on the environment. The book addresses research from the past decade to assess how fracking can affect air, water, landscapes and ecosystems, and presents the subject in the context of the history of fracking and shale gas development in the United States, describing what is known and not known about environmental impacts, and the broader implications of fossil energy use, climate change, and technology development. In 9 chapters, the author lays out how and why hydraulic fracturing was developed, what driving forces existed at the beginning of the so-called "shale revolution", how success was achieved, and when and why public acceptance of the technology changed. The intended audience is scientific people who are concerned about fracking, but perhaps do not know all that much about it. It is also intended for lay people who would be interested in understanding the technical details of the process and what effects it might or might not be having on the environment. The book is written at a level that is both understandable and technically correct. A further goal is to give some useful insights even to experienced petroleum geologists and engineers who have been doing fracking for many years.
A data-driven exploration of how children's language learning varies across different languages, providing both a theoretical framework and reference. The Wordbank Project examines variability and consistency in children's language learning across different languages and cultures, drawing on Wordbank, an open database with data from more than 75,000 children and twenty-nine languages or dialects. This big data approach makes the book the most comprehensive cross-linguistic analysis to date of early language learning. Moreover, its data-driven picture of which aspects of language learning are consistent across languages suggests constraints on the nature of children's language learning mechanisms. The book provides both a theoretical framework for scholars of language learning, language, and human cognition, and a resource for future research.
Statistical Methods in the Atmospheric Sciences, Fourth Edition, continues the tradition of trying to meet the needs of students, researchers and operational practitioners. This updated edition not only includes expanded sections built upon the strengths of the prior edition, but also provides new content where there have been advances in the field, including Bayesian analysis, forecast verification and a new chapter dedicated to ensemble forecasting. - Provides a strong, yet concise, introduction to applied statistics that is specific to atmospheric science - Contains revised and expanded sections on nonparametric tests, test multiplicity and quality uncertainty descriptors - Includes new sections on ANOVA, quantile regression, the lasso and other regularization methods, regression trees, changepoint detection, ensemble forecasting and exponential smoothing
Now more streamlined and focused than ever before, the 6th edition of CT and MRI of the Whole Body is a definitive reference that provides you with an enhanced understanding of advances in CT and MR imaging, delivered by a new team of international associate editors. Perfect for radiologists who need a comprehensive reference while working on difficult cases, it presents a complete yet concise overview of imaging applications, findings, and interpretation in every anatomic area. The new edition of this classic reference — released in its 40th year in print — is a must-have resource, now brought fully up to date for today’s radiology practice. Includes both MR and CT imaging applications, allowing you to view correlated images for all areas of the body. Coverage of interventional procedures helps you apply image-guided techniques. Includes clinical manifestations of each disease with cancer staging integrated throughout. Over 5,200 high quality CT, MR, and hybrid technology images in one definitive reference. For the radiologist who needs information on the latest cutting-edge techniques in rapidly changing imaging technologies, such as CT, MRI, and PET/CT, and for the resident who needs a comprehensive resource that gives a broad overview of CT and MRI capabilities. Brand-new team of new international associate editors provides a unique global perspective on the use of CT and MRI across the world. Completely revised in a new, more succinct presentation without redundancies for faster access to critical content. Vastly expanded section on new MRI and CT technology keeps you current with continuously evolving innovations.
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