Data Analysis and Graphics Using R: An Example-based Approach

Download free ebook "Data Analysis and Graphics Using R: An Example-based Approach", written by John Maindonald, John Braun :
Using modern statistical software systems requires training both in the software itself and in the underlying statistical methods. Concentrating on the freely available R system, this volume demonstrates recently implemented approaches and methods in statistical analysis. The authors introduce elementary concepts in statistics through examples of real-world data analysis drawn from their experience as teachers and as consultants. R code and data sets for all examples are available on the Internet. This emphasis on practical methodology combined with a tutorial approach makes the book accessible to anyone with a knowledge of undergraduate-level statistics. The methods demonstrated are suitable for use in a wide variety of disciplines, from social sciences to medicine, engineering and science.

Book Details

•Author(s): John Maindonald, John Braun
•Format(s): PDF
•File size: 2.24 MB
•Number of pages:386

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New Fundamental Technologies in Data Mining

Download free ebook "New Fundamental Technologies in Data Mining", written by Kimito Funatsu :
The book thoroughly acquaints you with the new generation of data mining tools and techniques and shows you how to use them to make better business decisions. It describes techniques for detecting customer behavior patterns useful in formulating marketing, sales and customer support strategies. While database analysts will find more than enough technical information to satisfy their curiosity, technically savvy business and marketing managers will find this book accessible.

The progress of data mining technology and large public popularity establish a need for a comprehensive text on the subject. The series of books entitled by ‘Data Mining’ address the need by presenting in-depth description of novel mining algorithms and many useful applications. In addition to understanding each section deeply, the two books present useful hints and strategies to solving problems in the following chapters. The contributing authors have highlighted many future research directions that will foster multi-disciplinary collaborations and hence will lead to significant development in the field of data mining..

Book Details

•Author(s): Kimito Funatsu
•Format(s): PDF
•File size: 23.10 MB
•Number of pages:548

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VoIP For Dummies

Download free ebook "VoIP For Dummies", written by Timothy V. Kelly :
Put your phone system on your computer network and see the savings

See how to get started with VoIP, how it works, and why it saves you money

VoIP is techspeak for "voice over Internet protocol," but it could spell "saving big bucks" for your business! Here's where to get the scoop in plain English. Find out how VoIP can save you money, how voice communication travels online, and how to choose the best way to integrate your phone system with your network at home or at the office.

Discover how to:

•Use VoIP for your business or home phone service
•Choose the best network type
•Set up VoIP on a wireless network
•Understand transports and services
•Demonstrate VoIP's advantages to management

Book Details

•Author(s): Timothy V. Kelly
•Format(s): PDF
•File size: 6.45 MB
•Number of pages: 312

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Switching to VoIP

Download free ebook "Switching to VoIP ", written by Theodore Wallingford :
More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP.

VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowersbusinesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm.

Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'lldiscover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented:

•building a softPBX
•configuring IP phones
•ensuring quality of service
•scalability
•standards-compliance
•topological considerations
•coordinating a complete system ?switchover?
•migrating applications like voicemail and directoryservices
•retro-interfacing to traditional telephony
•supporting mobile users
•security and survivability
•Theodore Wallingforddealing with the challenges of NAT

To help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on "how-to" that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium.You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include:

•SIP
•H.323, SCCP, and IAX
•Voice codecs
•802.3af
•Type of Service, IP precedence, DiffServ, and RSVP
•802.1a/b/g WLAN

If VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin making calls. It's the only thing left between you and a modern telecom network.

Book Details

•Author(s): Theodore Wallingford
•Format(s): PDF
•File size: 3.54 MB
•Number of pages: 504

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IPv6 Network Administration

Download free ebook "IPv6 Network Administration ", written by Niall Richard Murphy, David Malone :
What once seemed nearly impossible has turned into reality. The number of available Internet addresses is now nearly exhausted, due mostly to the explosion of commercial websites and entries from an expanding number of countries. This growing shortage has effectively put the Internet community--and some of its most brilliant engineers--on alert for the last decade.

Their solution was to create IPv6, a new Internet standard which will ultimately replace the current and antiquated IPv4. As the new backbone of the Internet, this new protocol would fix the most difficult problems that the Internet faces today--scalability and management. And even though IPv6's implementation has met with some resistance over the past few years, all signs are now pointing to its gradual worldwide adoption in the very near future. Sooner or later, all network administrators will need to understand IPv6, and now is a good time to get started.

IPv6 Network Administration offers administrators the complete inside info on IPv6. This book reveals the many benefits as well as the potential downsides of this next-generation protocol. It also shows readers exactly how to set up and administer an IPv6 network.

A must-have for network administrators everywhere, IPv6 Network Administration delivers an even-handed approach to what will be the most fundamental change to the Internet since its inception. Some of the other IPv6 assets that are covered include:

•routing
•integrated auto-configuration
•quality-of-services (QoS)
•enhanced mobility
•end-to-end security

IPv6 Network Administration explains what works, what doesn't, and most of all, what's practical when considering upgrading networks from the current protocol to IPv6.

Book Details

•Author(s): Niall Richard Murphy, David Malone
•Format(s): CHM
•File size: 0.98 MB
•Number of pages:312

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IPv6 Essentials, 2nd Edition

Download free ebook "IPv6 Essentials, 2nd Edition ", written by Silvia Hagen :
IPv6 Essentials, Second Edition provides a succinct, in-depth tour of all the new features and functions in IPv6. It guides you through everything you need to know to get started, including how to configure IPv6 on hosts and routers and which applications currently support IPv6. The new IPv6 protocols offers extended address space, scalability, improved support for security, real-time traffic support, and auto-configuration so that even a novice user can connect a machine to the Internet. Aimed at system and network administrators, engineers, network designers, and IT managers, this book will help you understand, plan for, design, and integrate IPv6 into your current IPv4 infrastructure.

Beginning with a short history of IPv6, author Silvia Hagen provides an overview of new functionality and discusses why we need IPv6. Hagen also shares exhaustive discussions of the new IPv6 header format and Extension Headers, IPv6 address and ICMPv6 message format, Security, QoS, Mobility and, last but not least, offers a Quick Start Guide for different operating systems. IPv6 Essentials, Second Edition also covers:

•In-depth technical guide to IPv6
•Mechanisms and Case Studies that show how to integrate IPv6 into your network without interruption of IPv4 services
•Routing protocols and upper layer protocols
•Security in IPv6: concepts and requirements. Includes the IPSEC framework and security elements available for authentication and encryption
•Quality of Service: covers the elements available for QoS in IPv6 and how they can be implemented
•Detailed discussion of DHCPv6 and Mobile IPv6
•Discussion of migration cost and business case
•Getting started on different operating systems: Sun Solaris, Linux, BSD, Windows XP, and Cisco routers

Whether you're ready to start implementing IPv6 today or are planning your strategy for the future, IPv6 Essentials, Second Edition will provide the solid foundation you need to get started.

"Silvia's look at IPv6 is always refreshing as she translates complextechnology features into business drivers and genuine end-user benefits toenable building new business concepts based on end to end models."Latif Ladid, President IPv6 Forum, Chair EU IPv6 Task Force

Book Details

•Author(s): Silvia Hagen
•Format(s): CHM
•File size: 4.54 MB
•Number of pages:448

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Wireless Home Networking For Dummies

Download free ebook "Wireless Home Networking For Dummies", written by Danny Briere, Walter R.Bruce III, Pat Hurley  :
Pick the right equipment, secure your network, and share files

Share your Internet connection, access hot spots, and add on cool wireless peripherals

Thinking of going wireless? It's not as scary as it sounds! This fast and fun guidebook helps you decide what you need, install it, and get the most from all its cool options. Your PCs can share printers while you groove to your favorite MP3s and the family shares quality video game time - all from anywhere!

The Dummies Way

•Explanations in plain English
•"Get in, get out" information
•Icons and other navigational aids
•Tear-out cheat sheet
•Top ten lists
•A dash of humor and fun

Book Details

•Author(s): Danny Briere, Walter R.Bruce III, Pat Hurley
•Format(s): PDF
•File size: 4.24 MB
•Number of pages:380

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