Friday, March 16, 2012

Statistical Computing in C++ and R (Chapman & Hall/CRC The R Series)

Statistical Computing in C++ and R (Chapman & Hall/CRC The R Series)

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With the advancement of statistical methodology inextricably linked to the use of computers, new methodological ideas must be translated into usable code and then numerically evaluated relative to competing procedures. In response to this, Statistical Computing in C++ and R concentrates on the writing of code rather than the development and study of numerical algorithms per se. The book discusses code development in C++ and R and the use of these symbiotic languages in unison. It emphasizes that each offers distinct features that, when used in tandem, can take code writing beyond what can be obtained from either language alone. The text begins with some basics of object-oriented languages, followed by a "boot-camp" on the use of C++ and R. The authors then discuss code development for the solution of specific computational problems that are relevant to statistics including optimization, numerical linear algebra, and random number generation. Later chapters introduce abstract data structures (ADTs) and parallel computing concepts. The appendices cover R and UNIX Shell programming. Features Includes numerous student exercises ranging from elementary to challenging Integrates both C++ and R for the solution of statistical computing problems Uses C++ code in R and R functions in C++ programs Provides downloadable programs, available from the authors �� website The translation of a mathematical problem into its computational analog (or analogs) is a skill that must be learned, like any other, by actively solving relevant problems. The text reveals the basic principles of algorithmic thinking essential to the modern statistician as well as the fundamental skill of communicating with a computer through the use of the computer languages C++ and R. The book lays the foundation for original code development in a research environment.

Statistical Computing in C++ and R (Chapman & Hall/CRC The R Series) Review

At long last I can read this title on my Android tablet while working in Linux on my PC.
Thank you Amazon!

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Thursday, March 15, 2012

Media Today, 3rd Edition

Media Today, 3rd Edition

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Media Today puts mass communication students at the center of the profound changes in the twenty-first century media world � from digital convergence to media ownership � and gives them the skills to think critically about what these changes mean for the role of media in their lives.



Comprehensive and engaging, Media Today features:





  • an interactive companion website featuring a full range of instructor and student materials including study podcasts at www.routledge.com/textbooks/mediatoday

  • </STRONG>


  • a three-pronged media systems approach focused on media literacy, convergence, and emerging trends in today's media culture



  • up-to-date coverage of the latest political, economic, technological, and cultural issues affecting media industries



  • exciting new resources including an enclosed free DVD with media examples.



Completely revised with updated examples, case studies, and media resources, the third edition of this innovative mass communication textbook is built upon a media systems approach that gives students an insider's perspective on how mass media industries operate. By making students more knowledgeable about the influences that guide media organizations, Media Today builds media literacy skills to make students sensitive to ways of seeing media content as a means of learning about culture. Joseph Turow emphasizes throughout the many ways in which media convergence has blurred distinctions between and among various media.



Each chapter of Media Today will:





  • guide students through the essential history of media industries



  • examines the current forces shaping their creation, distribution and exhibition



  • explores the impact of emerging trends in media and society from globalization to social networking to video games.



Media Today is designed to be used independently, but can also be used with the supplemental textbook edited by Brooke Erin Duffy and Joseph Turow, Key Readings in Media Today.


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Media Today, 3rd Edition Review

I teach a course in Mass Media and this is the text we use. Regarding the other review left here for the book.. it is really not meant to be casual or 'easy' reading -- it is meant to be an in depth exploration of (often) complicated issues.

Things I like about the text:
- important vocabulary is pulled out to the margins for easy identification
- the importance of media literacy and cultural implications are explored
- various types of media are addressed *as well as* important tangental issues like conglomerates, advertising, etc.
- modern examples that are easily recognizable to students are used

Things I'd like to see done differently:
- The questions at the end of each chapter/unit could be better. Many of them are purely reading comprehension.. which is fine.. but I'd also like to see questions that require more synthesis or depth of understanding.
- It would be great if there could be some sort cross-reference done within the text.

Overall, I give this book high marks for solid information well presented.

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Wednesday, March 14, 2012

Foundations of Factor Analysis, Second Edition (Chapman & Hall/CRC Statistics in the Social and Behavioral Sciences)

Foundations of Factor Analysis, Second Edition (Chapman & Hall/CRC Statistics in the Social and Behavioral Sciences)

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Providing a practical, thorough understanding of how factor analysis works, Foundations of Factor Analysis, Second Edition discusses the assumptions underlying the equations and procedures of this method. It also explains the options in commercial computer programs for performing factor analysis and structural equation modeling. This long-awaited edition takes into account the various developments that have occurred since the publication of the original edition.

New to the Second Edition

  • A new chapter on the multivariate normal distribution, its general properties, and the concept of maximum-likelihood estimation
  • More complete coverage of descriptive factor analysis and doublet factor analysis
  • A rewritten chapter on analytic oblique rotation that focuses on the gradient projection algorithm and its applications
  • Discussions on the developments of factor score indeterminacy
  • A revised chapter on confirmatory factor analysis that addresses philosophy of science issues, model specification and identification, parameter estimation, and algorithm derivation

Presenting the mathematics only as needed to understand the derivation of an equation or procedure, this textbook prepares students for later courses on structural equation modeling. It enables them to choose the proper factor analytic procedure, make modifications to the procedure, and produce new results.

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Foundations of Factor Analysis, Second Edition (Chapman & Hall/CRC Statistics in the Social and Behavioral Sciences) Review

Mulaik's second edition is one of those books, like Bollen's Structural Equations with Latent Variables, that you really, really want on your shelf. When you start asking questions about the deeper workings of factor analysis and factor-based methods, you'll find good, brass-tacks answers in Mulaik's book, and you may hunt a long time to find them anywhere else. I am extremely glad to see this second edition in print. If you want more than "cookbook," "rule of thumb" answers about these techniques, or if you write about these techniques and want to be sure of yourself without wasting weeks of searching, you need this book.

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Tuesday, March 13, 2012

Computer Organization and Design, Third Edition: The Hardware/Software Interface (The Morgan Kaufmann Series in Computer Architecture and Design)

Computer Organization and Design, Third Edition: The Hardware/Software Interface (The Morgan Kaufmann Series in Computer Architecture and Design)

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Product Description

This best selling text on computer organization has been thoroughly updated to reflect the newest technologies. Examples highlight the latest processor designs, benchmarking standards, languages and tools.

As with previous editions, a MIPs processor is the core used to present the fundamentals of hardware technologies at work in a computer system. The book presents an entire MIPS instruction set-instruction by instruction-the fundamentals of assembly language, computer arithmetic, pipelining, memory hierarchies and I/O.

A new aspect of the third edition is the explicit connection between program performance and CPU performance. The authors show how hardware and software components--such as the specific algorithm, programming language, compiler, ISA and processor implementation--impact program performance. Throughout the book a new feature focusing on program performance describes how to search for bottlenecks and improve performance in various parts of the system. The book digs deeper into the hardware/software interface, presenting a complete view of the function of the programming language and compiler--crucial for understanding computer organization. A CD provides a toolkit of simulators and compilers along with tutorials for using them.



For instructor resources click on the grey "companion site" button found on the right side of this page.
This new edition represents a major revision.
New to this edition:

* Entire Text has been updated to reflect new technology
* 70% new exercises.
* Includes a CD loaded with software, projects and exercises to support courses using a number of tools
* A new interior design presents defined terms in the margin for quick reference
* A new feature, "Understanding Program Performance" focuses on performance from the programmer's perspective
* Two sets of exercises and solutions, "For More Practice" and "In More Depth," are included on the CD
* "Check Yourself" questions help students check their understanding of major concepts
* "Computers In the Real World" feature illustrates the diversity of uses for information technology
*More detail below...</p>

Computer Organization and Design, Third Edition: The Hardware/Software Interface (The Morgan Kaufmann Series in Computer Architecture and Design) Review

This is a tough book to review. On one hand, it's got an amazing amount of information in it. On the other, it's got a lot of editing problems. It also suffers from a lack of focus on who its audience is. So, splitting the difference, I'm rating this book at 4 stars out of 5.

Regarding the book's audience, it's vital that you pay attention to the chart on page xiii of the Preface. It maps your path through the book based on whether you're a software-type or a hardware-type. Assuming I was so brilliant that I could ignore such trivia, I attempted to plow my way through the whole book. Software-type that I am, I had some tough times in a couple of sections and then utterly failed to understand anything when I hit the core of Chapter 5. If I had paid attention to that chart, I would have known to skip that part of the book. However, even for the material that's within the path laid out for you by that chart, a lot of the work seems to assume knowledge on the part of the reader. For instance:

- Chapter 2 is about the MIPS assembly language. In the exercises, you're supposed to write various code snippets. Many of these snippets assume far more familiarity with writing entire assembly programs than is presented.
- The exercises at the end of each chapter are broken into three types: regular, "For More Practice," and "In More Depth." Those last two types require far more knowledge than is presented. It looks like the authors culled them from previous editions and, instead of trashing them, just stuck them on the CD and referenced them.
- Exercise 3.9 is annotated as requiring Section 3.2. But, unless you're very familiar with the implementation of MIPS assembly language, there's no way that someone using the material in that section alone could do the problem.
- Exercise 3.13 is annotated as requiring Section 3.3. Yet, the question is completely undoable unless you've at least read Appendix B. Of course, Appendix B, itself, is practically indecipherable unless you've had previous experience/knowledge with Logic Design.
- Exercises 7.21, 7.22 and 7.38 talk about "the first 1 million references in a trace of gcc." The book contains no definition of what that means. Those questions also mention the cache simulator "dinero" and say, "see the Preface of this book for information on how to obtain them." There's no such information in the Preface or on the CD. The CD does have MipsIt software which includes a cache simulator, but it doesn't seem to work reliably on my XP SP2 system (it also doesn't seem to accept those "traces" as input). That could be operator error, though. Doing a Google search pointed me to max.stanford.edu as a source of the software and traces. But, it seems you have to have a Linux system (or be smarter than me) to use them.
- Exercise 7.35 gives a C code snippet and asks you to calculate the expected cache miss rate. There's nothing in the book about calculating expected miss rates from algorithms. Also, the exercise is assigned partially against section 7.4. Section 7.4 covers virtual memory, not caches.
- Most of the Chapter 8 exercises are mis-referenced (i.e., they're labeled as being associated with certain sections of the chapter which have nothing to do with the question). Along with the standard problem of assuming knowledge that's not covered in the book, many of them teach new information instead of testing/re-enforcing comprehension of the provided material.

There are many incorrect page number and section number references in the book. This is especially bad in the exercises where it becomes impossible to do certain ones since the code and data they're referencing isn't findable (at least easily). This problem does seem to get better as you get to the later chapters. There are also problems with basic typography. Some examples:

- Exercise 3.29 wants the reader to come up with a non-restoring division algorithm based on the restoring division algorithm in Figure 3.11 on page 185. The figure and page numbers are right, but the text of the question refers to "step 3b" and "restoring the Remainder" that aren't present there. So, there's no way to figure out what the authors are doing or what they want the reader to do in the exercise.
- Many of the tables and diagrams in the book use "color" to help indicate something important. Unfortunately, the color used is dark blue. Unless you look very carefully, there's no difference between the regular text/line color (black) and the "emphasized" version.
- The text description of Figure 7.31 on page 544 mentions labeled sections that show differences in performance based on cache associativity. The labels are missing.
- Exercise 7.45 gives you a C snippet that you're supposed to document. It contains "!!" as an operator. C has no such operator. My guess is it's either a logical AND, "&&", or a logical OR, "||".

Also, the chapters are WAY too long and there are no exercises following the sections. For instance, Chapter 2 is 100 pages long over 20 sections. All the exercises (59 of them) are clumped together in the back of the chapter. The authors note the necessary section numbers with these exercises, but each section needs its own set of exercises immediately following it. This would also alleviate the problem where the authors have the wrong section numbers assigned to exercises. If these exercises were at the end of a section instead of clumped with 60 other exercises at the back of the chapter, they'd stand out more if they didn't belong.

And, finally, the book needs answers to the questions.

As an aside, this book is used in Florida State University's (FSU) CDA 3101: Computer Organization course.

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Monday, March 12, 2012

Electronic Health Records

Electronic Health Records

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The availability of complete medical information when needed brought the innovation of storing the patient's information electronically. Improvement of patient medical care was and is the catalyst for the electronic health record. Electronic Health Record

Electronic Health Records Review

I work in the clinical informatics and as part of my college degree program I had to take an EMR class. I was excited thinking I might learn some additional skills in something like PowerChart or Epic, but I was presented with SpringCharts. It's one of the most useless EMR's I've ever used and I've used probably 10 different programs both third party and inhoue software systems. SpringCharts is nothing like what one will use in a hospital or clinic setting, maybe a doctor's office but that's a big maybe. If you are planning on being an MA, PCA, RN whatever skip a class that requires you to use this book, you won't learn anything useful.

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