Storage Retrieval

Download E-books Getting Started with LevelDB PDF

By Andy Dent

Learn the right way to construct a high-performing app with an embedded database on iOS or OS X because of this magnificent, hands-on advisor to LevelDB. Designed for newbies, but additionally an invaluable reference guide for the extra experienced.


  • Understand how a taken care of key-value shop like LevelDB can help any app.
  • Learn to exploit LevelDB from uncomplicated C++ code on iOS and OS/X
  • Use LevelDB as a aid for any OS/X, iPhone, or iPad app via a chain of functional examples

In Detail

Mobile and standalone computing device apps usually have to shop and quickly retrieve information. LevelDB scales from a number of uncomplicated values as much as trillions of documents and is versatile adequate to shop any form of data.

Getting began with LevelDB progresses in the course of the subtle how you can use databases. It begins by means of explaining tips to set up and construct LevelDB from the fundamentals, and strikes directly to clarify the several Objective-C layers for LevelDB. it may be used as an advent to database-backed iOS apps, in addition to presents explanation to key-value shops and is helping you know the way they relate to SQL.

LevelDB is a versatile facts answer that makes use of key-value shops to permit for the improvement of hugely advanced, effective information garage platforms. From the fundamentals of information garage and retrieval to advanced circumstances regarding info garage for apps, this booklet covers a variety of LevelDB topics.

Even quite easy apps could have the necessity to seek their information utilizing diverse phrases. Getting began with LevelDB indicates the best way to layout keys to retrieve and shop facts successfully. you are going to find out how its “levelled” nature promises quickly writes and the way to song its settings and layout for functionality. additionally, you will see a couple of thoughts for debugging and tuning.

Getting begun with LevelDB will go away you as an entire LevelDB programmer, convinced you could construct a posh database-backed app with excessive functionality on iOS or OS/X.

What you'll study from this book

  • Install LevelDB and software in C++ or Objective-C to construct OS/X, iPhone, and iPad apps
  • Extend basic taken care of key-value shops to aid graph and relational information types
  • Understand iOS interface construction for an app that makes use of databases
  • Learn the GUI styles wanted for a database-backed app
  • Explore debugging gains by means of including an embedded net server in your iOS app
  • Install extra libraries and spot how one can use LevelDB from JavaScript through Node in addition to Ruby and Python
  • Compare SQL to LevelDB together with SQL-like relational schemas and examine the implementation duties to take care of database integrity


The publication is a concise consultant for utilizing LevelDB. It explains database techniques and using C++, starting from the fundamentals all of the approach to excessive point subject matters in a simple to stick to, step by step structure.

Who this booklet is written for

The booklet is intended for builders who wish an embedded database for his or her purposes. skilled programmers can decide up at the subtle facts mapping styles and tuning tips.

Getting begun with LevelDB calls for a minimum history in programming in C++ or Objective-C for OS/X or iOS and familiarity with XCode. for that reason it teaches adequate C++ to exploit LevelDB with no presuming any C++ wisdom, so is appropriate for newbie Objective-C programmers.

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Download E-books New Concepts in Digital Reference (Synthesis Lectures on Information Concepts, Retrieval, and S) PDF

By R. David Lankes

Allow us to begin with an easy state of affairs: a guy asks a lady "how excessive is Mount Everest?" the lady replies "29,029 feet." not anything may be less complicated. Now allow us to feel that instead of status in a room, or sitting on a bus, the fellow is at his table and the lady is three hundred miles away with the dialog occurring utilizing email. nonetheless uncomplicated? Certainly--it occurs on a daily basis. So why the entire hassle approximately electronic (virtual, digital, chat, etc.) reference? If the guy is a pilot flying over Mount Everest, the reply issues. when you are a attorney going to court docket, the id of the lady is essential. additionally, should you ever are looking to find the solution back, how that transaction happened concerns much. electronic reference is a deceptively basic proposal on its face: "the incorporation of human services into the data system." This lecture seeks to discover the query of ways human services is included right into a number of details structures, from libraries, to electronic libraries, to info retrieval engines, to wisdom bases. What we research via this pastime, began basically within the library context, is that the versions, equipment, criteria, and experiments in electronic reference have huge applicability. We additionally capture a glimpse of an unfolding destiny within which ubiquitous computing makes the id, interplay, and trap of craftsmanship more and more very important. it's a destiny that's even more advanced than we had expected. it's a destiny during which files and artifacts are less significant than the contexts in their production and use. desk of Contents: Defining Reference in a electronic Age / Conversations / electronic Reference in perform / electronic Reference an a brand new destiny / end

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Download E-books Working with India: The Softer Aspects of a Successful Collaboration with the Indian IT & BPO Industry PDF

By Wolfgang Messner

Globalization calls for powerful overseas and cross-cultural collaboration. whilst venture groups from Western cultures first come into touch with colleagues from the Indian IT and BPO undefined, prejudices opposed to the recent and unknown are usually amplified. This ebook is a commence at the trip of cultural appreciation for managers, undertaking leaders, and offshore coordinators operating including Indians. it's also a source for company managers and corporate strategists looking to comprehend the softer facets in the back of the headlines that the Indian IT and BPO so often creates. Being either academically good researched and an account of the author’s decades of private event in India, the ebook opens with an outline of cultural dimensions that aid to collapse culturally pushed concerns. It offers historical past information regarding India as a rustic and a social method. analyzing the improvement and present prestige of India’s IT and BPO undefined, it strikes directly to describe the dynamics of its staff. The ebook then offers functional info on the best way to speak, negotiate, and have interaction with Indian colleagues, and intelligently make the most of expatriates. It closes by way of formulating concepts for a better collaboration.

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Download E-books IT-Strategie: Optimale Ausrichtung der IT an das Business in 7 Schritten (German Edition) PDF

By Volker Johanning

In sieben aufeinander aufbauenden Schritten wird die Entwicklung einer IT-Strategie mit der Möglichkeit der praktischen Umsetzung anhand von vorgefertigten Arbeitsblättern präsentiert. Dabei werden alle für eine IT-Strategie relevanten Themenkomplexe von der Ableitung der IT-Strategie aus der Unternehmensstrategie bis zur Erstellung der Applikations- und Sourcingstrategie betrachtet. Die Rolle der IT im Unternehmen und die Rolle des CIOs werden eingehend beleuchtet und als Aufbauorganisation wird das Demand/Supply-Modell ausführlich vorgestellt. Der Leser erfährt, wie er die IT-Strategie in eine Roadmap zur Umsetzung überführt , ein Portfolio zur Steuerung der Projekte nutzt und mit einem eigens entwickelten IT Strategiecockpit die Ziele der IT-Strategie umsetzen und kontrollieren kann.

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Download E-books Knitting the Semantic Web PDF

The Semantic internet, extends the preferred, day by day net, allowing pcs and other people to successfully interact by way of giving details well-defined which means. Knitting the Semantic Web explains the interdisciplinary efforts underway to construct a extra library-like net via “semantic knitting.” The e-book examines beginning actions and tasks resulting in standardized semantic metadata. those efforts result in the Semantic Web―a community capable of aid computational actions and supply individuals with companies successfully. Leaders in library and data technological know-how, desktop technology, and knowledge extensive domain names supply perception and concept to offer readers a better knowing of the evolution of the Semantic internet.

Librarians and knowledge pros are uniquely certified to play a tremendous function within the improvement and upkeep of the Semantic internet. Knitting the Semantic Web heavily examines this significant courting intimately. This unmarried resource reports the rules, criteria, and instruments underlying the Semantic net and offers considerate views within the context of 2.0 advancements. Many chapters comprise figures to demonstrate techniques and ideas, and the whole textual content is commonly referenced.

Topics in Knitting the Semantic Web include:

  • RDF, its expressive strength, and its skill to underlie the hot Library catalog card for the arriving century
  • the price and alertness for managed vocabularies
  • SKOS (Simple wisdom association System), the latest Semantic net language
  • managing scheme versioning within the Semantic Web
  • Physnet portal carrier for physics
  • Semantic net applied sciences in biomedicine
  • developing the United countries nutrients and Agriculture ontology
  • Friend Of a pal (FOAF) vocabulary specification―with a true international case learn at a university
  • Web/Library 2.0
  • and extra

Knitting the Semantic Web is a stimulating source for execs, researchers, educators, and scholars in library and data technology, laptop technology, info structure, website design, and net providers.

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Download E-books The Semantic Web: ESWC 2014 Satellite Events: ESWC 2014 Satellite Events, Anissaras, Crete, Greece, May 25-29, 2014, Revised Selected Papers (Lecture Notes in Computer Science) PDF

This booklet constitutes the completely refereed post-conference court cases of the satellite tv for pc occasions of the eleventh overseas convention at the Semantic net, ESWC 2014, held in Anissaras, Crete, Greece, in may perhaps 2014. the amount comprises 20 poster and forty three demonstration papers, chosen from 113 submissions, in addition to 12 top workshop papers chosen from 60 papers provided on the workshop at ESWC 2014. most sensible papers from AI Mashup problem also are included. The papers conceal numerous features of the Semantic net.

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Download E-books Web Data Mining: Exploring Hyperlinks, Contents, and Usage Data (Data-Centric Systems and Applications) PDF

By Bing Liu

Web mining goals to find beneficial details and information from internet links, web page contents, and utilization information. even if net mining makes use of many traditional info mining ideas, it's not only an software of conventional information mining because of the semi-structured and unstructured nature of the internet info. the sector has additionally built a lot of its personal algorithms and strategies.

Liu has written a accomplished textual content on net mining, which is composed of 2 components. the 1st half covers the knowledge mining and laptop studying foundations, the place the entire crucial innovations and algorithms of information mining and desktop studying are awarded. the second one half covers the major themes of internet mining, the place net crawling, seek, social community research, dependent info extraction, info integration, opinion mining and sentiment research, internet utilization mining, question log mining, computational ads, and recommender structures are all handled either in breadth and extensive. His booklet therefore brings all of the similar strategies and algorithms jointly to shape an authoritative and coherent text. 

The booklet bargains a wealthy combination of idea and perform. it truly is appropriate for college kids, researchers and practitioners attracted to net mining and information mining either as a studying textual content and as a reference booklet. Professors can without difficulty use it for sessions on info mining, internet mining, and textual content mining. extra instructing fabrics resembling lecture slides, datasets, and carried out algorithms can be found on-line.

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Download E-books Super Searchers Cover the World (Super Searchers series) PDF

By Mary Ellen Bates

As the ubiquity of the net has fostered extra curiosity in enterprise outdoors the us, the necessity for firms to work out their industry and aggressive atmosphere in a world point of view has compelled extra companies to imagine the world over. This booklet asks the specialists to bare their ideas for locating foreign enterprise info on the net. via a set of 15 interviews with professional on-line researchers, exploration of the categorical demanding situations of achieving outdoors a researcher’s geographic sector and services is targeted. In-country specialists from all over the world similar to librarians and researchers from executive organisations, multinational businesses, universities, and small companies speak about matters similar to non-native language resources, cultural bias, and judging reliability of surprising assets. Interviewees are from nations reminiscent of the USA, uk, Japan, China, Italy, Argentina, Mexico, and The Netherlands.

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Download E-books Global Data Management - Emerging Communication (Studies in New Technologies and Practices in Communication) PDF

No longer a long time in the past, a few researcher created the imaginative and prescient of the 'data application' as a key enabler in the direction of ubiquitous and pervasive computing. As for the water and tool grid, there can be a software infrastructure, designed for around the world availability, offering non-stop entry to continual details. Such software provider may still offer applicable promises by way of protection, info availability and survivability, and function self sustaining of place from which it's accessed. Decentralization and replication will be the method of make it resistant opposed to protection assaults. numerous tasks have explored (and nonetheless are exploring) the feasibility of the imaginative and prescient, each one having a special emphasis on person good points comparable to facts toughness, uniform geographic entry, privateness and aid for uncensorship, mobility help, or different. functions which take advantage of such international information carrier will be many, starting from disbursed, Internet-wide dossier providers, to cellular information provisioning, content material distribution, facts backup, electronic libraries and knowledge retrieval. equally, details structures for nationwide safeguard, world-wide security infrastructures and different structures which depend on sensors (physical or logical e.g. firewalls, packet filters), all require a decentralized, inter-organizational info assortment and processing infrastructure, capable of strategy in actual time a major volume of information, and clear out, correlate and securely distribute info to many clients. This publication goals at providing an natural view at the study and applied sciences which are bringing us in the direction of the conclusion of the vision.

IOS Press is a world technology, technical and scientific writer of high quality books for teachers, scientists, and execs in all fields.

a few of the components we post in:

-Artificial intelligence
-Databases and knowledge systems
-Maritime engineering
-All points of physics
-The wisdom economy
-Urban studies
-Arms control
-Understanding and responding to terrorism
-Medical informatics
-Computer Sciences

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Download E-books Emerging Trends in Database and Knowledge Based Machines: The Application of Parallel Architectures to Smart Information Systems (Practitioners) PDF

This ebook illustrates vital ways that new parallel is getting used to enhance the rate and value of a number of info platforms. It comprises 13 unique papers that survey the most recent developments in functionality bettering architectures for shrewdpermanent details systems.

The machines featured within the textual content were designed to help details platforms starting from relational databases to semantic networks and different man made intelligence paradigms. additionally, some of the initiatives illustrated within the e-book include ordinary architectural rules that help higher-level requisites through the use of semantics-free designs.

The case stories describe add-on machines and performance-enhancing devices that hire parallel to hurry up database operations. different case reviews convey how high-performance pcs aid database and similar software program, even supposing a few systems have been initially designed for medical or numeric functions. The final 3 chapters provide examples of machines which are intentionally designed to hurry up a specific wisdom illustration formalism or a specific AI challenge fixing paradigm. the data provided all through this publication may help all these engaged within the layout or use of high-performance architectures for nonnumeric (i.e., symbolic) purposes.

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