• Download E-books Ruby Performance Optimization: Why Ruby is Slow, and How to Fix It PDF

    By Alexander Dymo

    You do not have to just accept sluggish Ruby or Rails functionality. during this finished advisor to Ruby optimization, you are going to the way to write quicker Ruby code--but that is only the start. See precisely what makes Ruby and Rails code sluggish, and the way to mend it. Alex Dymo will advisor you thru perils of reminiscence and CPU optimization, profiling, measuring, functionality checking out, rubbish assortment, and tuning. you will discover that every one these "hard" issues are not so tricky in any case, and your code will run orders of value faster.

    This is the 1st booklet ever that consolidates all of the Ruby functionality optimization suggestion in a single position. it is your complete consultant to reminiscence optimization, CPU optimization, rubbish collector tuning, profiling, measurements, functionality trying out, and more.

    You'll cross from functionality rookie to professional. First, you will research the simplest practices for writing Ruby code that is effortless not just at the CPU, but additionally on reminiscence, and that does not set off the feared rubbish collector. you can find out that rubbish assortment money owed for eighty% of slowdowns, and infrequently takes greater than 50% of your program's execution time. and you can notice the bottlenecks in Rails code and find out how selective characteristic loading and preloading can mitigate the functionality expenditures of ActiveRecord.

    As you enhance to Ruby functionality professional, you will learn the way profile your code, tips to make feel out of profiler reviews, and the way to make optimization judgements according to them. you will ensure gradual code does not creep again into your Ruby software via writing functionality checks, and you can examine how you can benchmark Ruby.

    And eventually, you are going to dive into the Ruby interpreter internals to truly comprehend why rubbish assortment makes Ruby so gradual, and the way you could song it up.

    What You Need:

    Some model of Ruby. the recommendation from this ebook applies to all sleek Ruby types from 1.9 to 2.2. eighty% of the cloth may also be necessary for legacy Ruby 1.8 clients, and there's 1.8-specific suggestion as well.

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  • Download E-books Convolutional Codes PDF

    This monograph develops an algebraic technique that may be used to build convolutional codes which are effective in either classical and nonclassical situations.

    Coding concept, that's an offshoot of the sector of probabilistic details conception, falls into elements: block codes and convolutional codes. Block codes have lent themselves to effortless and effective building by means of sure algebraic instruments, yet hardly ever have these instruments been of any use in developing convolutional codes. those are usually built by means of equipment of desktop search.

    Convolutional Codes makes an important contribution to the sphere of coding thought by means of featuring an unique building scheme for convolutional codes that makes them extra strong and more straightforward to investigate than codes generated by way of the extra ordinary approach to computing device seek. The algebraic strategy, Piret issues out, is used no longer as a result of itself, yet for its potency in developing and examining convolutional codes having strong and numerous blunders correcting capabilities.

    Philippe Piret is a member of the Philips examine Laboratory in Brussels.
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  • Download E-books A Practical Handbook of Speech Coders (Discrete Mathematics and Its Applications) PDF

    By Randy Goldberg

    The call for for electronic speech coding algorithms grows each day, fueled by way of functions equivalent to streaming speech over the net, web cell, electronic mobile telephony, instant teleconferencing, and diverse multimedia purposes. before, lots of the books to be had on audio coding were collections of separately authored papers. Others have mentioned the basic coders, yet overlooked a few of the ideas at the moment in use. in contrast to those books, a pragmatic instruction manual of Speech Coders bargains in-depth therapy of the fundamentals of speech coding plus the options to the fundamental equipment that make the coders necessary and efficient.
    The authors designed this paintings for engineers, scientists, and supervisor who have to comprehend the rising speech coding recommendations and telecommunication criteria. even if, it is going to turn out invaluable to humans in any respect degrees of speech coder experience:
  • If you need to easily obtain the code for an present set of rules, this publication is helping you assessment the strengths and weaknesses of all publicly on hand codes and select the suitable one, then issues you to the web position the place the code is offered for obtain.
  • For specialists who are looking to increase on current coders, this ebook offers the parameters of present coders and the suggestions to enhance upon them. you could obtain an present set of rules or code it utilizing the algorithmic descriptions within the publication, make your ideas, after which try out the code with the techniques given.
  • If you need to develop into knowledgeable and feature a few uncomplicated wisdom of electronic sign processing, you could research the leading edge steps taken by means of the inventor of every coder, discover the rigorous study concepts had to advance your individual coder, and develop into knowledgeable in current vocoder technology.
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  • Download E-books Functional Programming in Java: Harnessing the Power Of Java 8 Lambda Expressions PDF

    By Venkat Subramaniam

    Intermediate point, for programmers rather conversant in Java, yet new to the practical variety of programming and lambda expressions.

    Get able to software in an entire new manner. Functional Programming in Java might help you speedy get on most sensible of the hot, crucial Java eight language positive aspects and the practical kind that might switch and increase your code. This brief, distinctive ebook may also help you're making the paradigm shift from the previous vital strategy to a much less error-prone, extra based, and concise coding variety that is additionally a breeze to parallelize. you are going to discover the syntax and semantics of lambda expressions, strategy and references, and useful interfaces. you will layout and write purposes greater utilizing the hot criteria in Java eight and the JDK.

    Lambda expressions are light-weight, hugely concise nameless tools sponsored by way of sensible interfaces in Java eight. you should use them to jump ahead right into a entire new international of programming in Java. With practical programming features, which were round for many years in different languages, now you can write stylish, concise, much less error-prone code utilizing usual Java. This e-book will consultant you although the paradigm swap, provide the basic information about the recent positive aspects, and allow you to transition out of your outdated means of coding to a much better style.

    In this e-book you will see well known layout styles, equivalent to decorator, builder, and technique, come to existence to unravel universal layout difficulties, yet with little rite and energy. With those new functions in hand, Functional Programming in Java may also help you decide up innovations to enforce designs that have been past effortless succeed in in past models of Java. you will see how one can make the most of tail name optimization, memoization, and easy parallelization techniques.

    Java eight will switch how you write purposes. if you are wanting to benefit from the hot gains within the language, this can be the booklet for you.

    What you need:

    Java eight with help for lambda expressions and the JDK is needed to use the suggestions and the examples during this book.

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  • Download E-books The Fortune Cookie Principle: The 20 keys to a great brand story and why your business needs one. PDF

    By Bernadette Jiwa

    "This could be the subsequent publication you learn. pressing, leveraged and beneficial, it's going to switch your corporation like not anything else." SETH GODIN —Author The Icarus Deception

    It's now not how stable you're. it really is how good you inform your story.

    Big organisations may need large advertising and advertisements budgets yet you’ve obtained a narrative. Your model tale is not only what you inform humans. it truly is what they suspect approximately you according to the indications your model sends. 'The Fortune Cookie precept' is a model development framework and conversation method together with 20 keys that provide help to commence telling your brand’s tale from the interior out. It’s the root upon that you could differentiate your model and make emotional connections with the type of consumers and consumers you must serve.

    The so much winning manufacturers on the planet don’t behave like commodities and neither in case you. an exceptional model tale will make you stand out, bring up model information, create buyer loyalty and gear gains. isn't really it time to gave your shoppers a narrative to inform? 'The Fortune Cookie precept' will exhibit you how.


    "It's really easy to overcomplicate what nice manufacturers and new companies have to do to resonate with their shoppers. the straightforward questions requested during this e-book assist you to de-mystify that strategy. It encourages you to imagine past what you do to why you do it and why that concerns in your buyers. Had this been on hand whilst i used to be using revenues and advertising and marketing features in my earlier company lifestyles at Cadbury Schweppes, this might were advised studying. Now i am an entrepreneur I easily observe those ideas each day."

    Wendy Wilson Bett—Co-Founder Peter's Yard

    "Yes, you wish an exceptional product, yet with no compelling tale, luck is unbelievable. The 'Fortune Cookie precept' is an easy-to-read advisor that would support any marketer or enterprise proprietor start to ask the fitting questions on the tales they inform. Bernadette contains dozens of examples and inquiries to get your storytelling send within the correct order. let's accept it...telling compelling tales to draw and keep shoppers isn't effortless. so much model retailers aren't nice storytellers. This e-book provide you with a brand new standpoint in your advertising, and assist you stream from speaking approximately your self to speaking approximately issues your clients truly care approximately. Then, and simply then, will your advertising and marketing truly paintings in contemporary consumer-led economy."

    Joe Pulizzi—Founder content material advertising Institute

    "The knowledge during this booklet is best than any fortune. learn and apply!"

    Chris Guillebeau—Author $100 Startup

    “This publication is an concept. Bernadette ignites real-world adventure with a real ardour for supporting companies circulation to the subsequent level.”

    Mark Schaefer—Author go back on Influence

    "Full of inspiring tales approximately what makes companies targeted (and profitable) in ultra-modern supersaturated markets."

    David Airey —Author paintings For funds, layout For Love.

    “If you are an individual who cares approximately why you do what you do and the way you do it, this booklet is for you.”

    Tina Roth Eisenberg—Founder of Tattly

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  • Download E-books Play Bigger: How Pirates, Dreamers, and Innovators Create and Dominate Markets PDF

    By Al Ramadan, Dave Peterson, Christopher Lochhead, Kevin Maney

    The founders of a revered Silicon Valley advisory company examine mythical category-creating businesses and display a groundbreaking self-discipline known as classification design.

    Winning this day isn’t approximately beating the contest on the previous online game. It’s approximately inventing an entire new game—defining a brand new industry type, constructing it, and dominating it through the years. You can’t construct a mythical corporation with out construction a mythical class. should you imagine that having the simplest product is all it takes to win, you’re going to lose.

    In this farsighted, pioneering advisor, the founders of Silicon Valley advisory company Play higher depend on facts research and interviews to appreciate the internal workings of “category kings”— businesses equivalent to Amazon, Salesforce, Uber, and IKEA—that supply us new methods of residing, considering or doing enterprise, frequently fixing difficulties we didn’t be aware of we had.

    In Play Bigger, the authors gather their findings to introduce the hot self-discipline of classification layout. by way of using classification layout, businesses can create new call for the place none existed, conditioning shoppers’ brains in order that they swap their expectancies and purchasing conduct. whereas this self-discipline defines the tech undefined, it applies to each type of or even to non-public careers.

    Crossing the Chasm revolutionized how we predict approximately new items in an latest marketplace. The Innovator’s Dilemma taught us approximately disrupting an getting older industry. Now, Play Bigger is reworking company once more, exhibiting us the way to create the industry itself.

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  • Download E-books Value Chain Management in the Chemical Industry: Global Value Chain Planning of Commodities (Contributions to Management Science) PDF

    Supply chain administration helped businesses to control volumes, fulfil shopper call for and optimize expenditures in creation and distribution. particularly, chemical businesses with excessive complexity in construction and distribution used offer chain administration to lead their operations. faced with globalization and lengthening uncooked fabric and revenues rate volatility, optimizing offer chain expenses isn't any longer enough to make sure the final profitability of the enterprise. price chain administration takes provide chain administration to the following point by means of integrating all quantity and price judgements from revenues to procurement. The booklet offers the price chain administration inspiration and demonstrates the way it is utilized in a world worth chain making plans version for commodities within the chemical undefined. A complete case research illustrates the results of selection making integration, e.g. the effect of uncooked fabric costs or alternate premiums on optimum revenues, construction, distribution and procurement plans as good as overall corporation profitability.

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  • Download E-books Translating Strategy into Shareholder Value: A Company-Wide Approach to Value Creation PDF

    By Raymond J. Trotta

    "Translating method Into Shareholder worth" maps out how you can make sure that a company's procedure relates on to the particular success of shareholder worth. The publication offers instruments, in addition to a variety of real-life examples, to investigate how readers can maximize good fortune through translating company technique to the base line.
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  • Download E-books Effective Web Presence Solutions for Small Businesses: Strategies for Successful Implementation (Advanced Topics in Global Information Management) PDF

    By Stephen Burgess

    Over the earlier numerous years, loads of study has been dedicated to using details expertise via small companies. One technological software now used to spice up corporation good fortune is net presence enhancement in alignment with enterprise strategy.

    Effective net Presence recommendations for Small companies: thoughts for profitable Implementation is the 1st e-book to supply small companies with a holistic method of enforcing their internet presence via id of site content material that fits their enterprise approach. A helpful learn for small company proprietors in addition to academicians and researchers, this publication connects a number of the matters fascinated about the making plans and execution of profitable sites for small businesses.

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