Download e-book for iPad: Big Data Integration by Xin Luna Dong, Divesh Srivastava

By Xin Luna Dong, Divesh Srivastava

ISBN-10: 1627052232

ISBN-13: 9781627052238

The large facts period is upon us: info are being generated, analyzed, and used at an unheard of scale, and data-driven choice making is sweeping via all points of society. because the price of information explodes whilst it may be associated and fused with different facts, addressing the massive facts integration (BDI) problem is important to figuring out the promise of massive information. BDI differs from conventional facts integration alongside the size of quantity, pace, sort, and veracity. First, not just can information assets include an incredible quantity of knowledge, but in addition the variety of information resources is now within the hundreds of thousands. moment, as a result of the expense at which newly amassed facts are made on hand, a few of the facts resources are very dynamic, and the variety of info resources is additionally speedily exploding. 3rd, facts assets are super heterogeneous of their constitution and content material, displaying enormous type even for considerably comparable entities. Fourth, the information resources are of largely differing features, with major alterations within the assurance, accuracy and timeliness of information supplied. This booklet explores the development that has been made by way of the information integration neighborhood at the themes of schema alignment, list linkage and information fusion in addressing those novel demanding situations confronted via giant information integration. every one of those subject matters is roofed in a scientific manner: first beginning with a brief travel of the subject within the context of conventional facts integration, via an in depth, example-driven exposition of contemporary cutting edge concepts which were proposed to deal with the BDI demanding situations of quantity, speed, style, and veracity. eventually, it offers merging themes and possibilities which are particular to BDI, determining promising instructions for the information integration neighborhood.

Show description

Read or Download Big Data Integration PDF

Similar database storage & design books

Download e-book for iPad: Accessing and Analyzing Data With Microsoft Excel by Paul Cornell

Notice the way to use Microsoft Excel and different Microsoft place of work instruments to entry and examine the knowledge in spreadsheets, databases, and transaction processing structures for larger enterprise choice making.

Download e-book for kindle: Web Page Recommendation Models: Theory and Algorithms by Sule Gunduz-Oguducu

One of many software parts of information mining is the realm broad internet (WWW or Web), which serves as a major, largely allotted, worldwide info provider for each type of info reminiscent of information, ads, patron info, monetary administration, schooling, executive, e-commerce, healthiness companies, and lots of different details companies.

Download e-book for iPad: Distributed Multimedia Database Technologies Supported by by Harald Kosch

A multimedia procedure wishes a mechanism to speak with its setting, the web, consumers, and functions. MPEG-7 presents a typical metadata structure for worldwide communique, yet lacks the framework to enable many of the gamers in a method have interaction. MPEG-21 closes this hole by way of setting up an infrastructure for a dispensed multimedia framework, taking into account the production, amendment, viewing, and conversation of electronic goods between all members inside of an MPEG-21 contract.

Download e-book for iPad: Virtualizing SQL Server with VMware Doing IT Right by Michael Corey, Jeff Szastak, Michael Webster

The start-to-finish consultant to virtualizing business-critical SQL Server databases on VMware vSphere 5By virtualizing business-critical databases, agencies can force way more price from current IT infrastructure. yet squeezing greatest functionality out of a virtualized database example is an paintings up to a technology.

Extra resources for Big Data Integration

Example text

In Chapter 5, we outline emerging topics that are specific to BDI and identify promising directions of future work in this area. Finally, Chapter 6 summarizes and concludes the book. 29 31 CHAPTER 2 Schema Alignment The first component of data integration is schema alignment. 3, there can be thousands to millions of data sources in the same domain, but they often describe the domain using different schemas. Flight vs. , Arrival Time may mean landing time in one source and arrival-at-gate time in another source).

1. The web sources are crawled to a depth of three hops from the root page. All the HTML query interfaces on the retrieved pages are identified. Query interfaces (within a source) that refer to the same database are identified by manually choosing a few random objects that can be accessed through one interface and checking to see if each of them can be accessed through the other interfaces. 2. com directory (accessed on October 1, 2014) as the taxonomy. Madhavan et al. [2007] instead use a random sample of 25 million web pages from the Google index from 2006, then identify deep web query interfaces on these pages in a rule-driven manner, and finally extrapolate their estimates to the 1 billion+ pages in the Google index.

There are three types of schema mappings: global-as-view (GAV), local-as-view (LAV), and global-local-as-view (GLAV). Global-as-view specifies how to obtain data in the mediated schema by querying the data in source schemas; in other words, the mediated data can be considered as a database view of the source data. Local-as-view specifies the source data as a view of the mediated data; this approach makes it easy to add a new data source with a new schema. Finally, global-localas-view specifies both the mediated data and the local data as views of data of a virtual schema.

Download PDF sample

Big Data Integration by Xin Luna Dong, Divesh Srivastava

by Donald

Rated 4.91 of 5 – based on 16 votes