Data Profiling

Author : Ziawasch Abedjan
Publisher : Springer Nature
ISBN 13 : 3031018656
Total Pages : 136 pages
Book Rating : 4.57/5 ( download)

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Download or read book Data Profiling written by Ziawasch Abedjan and published by Springer Nature. This book was released on 2022-06-01 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data profiling refers to the activity of collecting data about data, {i.e.}, metadata. Most IT professionals and researchers who work with data have engaged in data profiling, at least informally, to understand and explore an unfamiliar dataset or to determine whether a new dataset is appropriate for a particular task at hand. Data profiling results are also important in a variety of other situations, including query optimization, data integration, and data cleaning. Simple metadata are statistics, such as the number of rows and columns, schema and datatype information, the number of distinct values, statistical value distributions, and the number of null or empty values in each column. More complex types of metadata are statements about multiple columns and their correlation, such as candidate keys, functional dependencies, and other types of dependencies. This book provides a classification of the various types of profilable metadata, discusses popular data profiling tasks, and surveys state-of-the-art profiling algorithms. While most of the book focuses on tasks and algorithms for relational data profiling, we also briefly discuss systems and techniques for profiling non-relational data such as graphs and text. We conclude with a discussion of data profiling challenges and directions for future work in this area.

Author : Tye Rattenbury
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1491938870
Total Pages : 94 pages
Book Rating : 4.74/5 ( download)

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Download or read book Principles of Data Wrangling written by Tye Rattenbury and published by "O'Reilly Media, Inc.". This book was released on 2017-06-29 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: A key task that any aspiring data-driven organization needs to learn is data wrangling, the process of converting raw data into something truly useful. This practical guide provides business analysts with an overview of various data wrangling techniques and tools, and puts the practice of data wrangling into context by asking, "What are you trying to do and why?" Wrangling data consumes roughly 50-80% of an analyst’s time before any kind of analysis is possible. Written by key executives at Trifacta, this book walks you through the wrangling process by exploring several factors—time, granularity, scope, and structure—that you need to consider as you begin to work with data. You’ll learn a shared language and a comprehensive understanding of data wrangling, with an emphasis on recent agile analytic processes used by many of today’s data-driven organizations. Appreciate the importance—and the satisfaction—of wrangling data the right way. Understand what kind of data is available Choose which data to use and at what level of detail Meaningfully combine multiple sources of data Decide how to distill the results to a size and shape that can drive downstream analysis

Author : Brendan McGurk
Publisher : Bloomsbury Publishing
ISBN 13 : 1509920625
Total Pages : 312 pages
Book Rating : 4.24/5 ( download)

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Download or read book Data Profiling and Insurance Law written by Brendan McGurk and published by Bloomsbury Publishing. This book was released on 2019-03-21 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The winner of the 2020 British Insurance Law Association Book Prize, this timely, expertly written book looks at the legal impact that the use of 'Big Data' will have on the provision – and substantive law – of insurance. Insurance companies are set to become some of the biggest consumers of big data which will enable them to profile prospective individual insureds at an increasingly granular level. More particularly, the book explores how: (i) insurers gain access to information relevant to assessing risk and/or the pricing of premiums; (ii) the impact which that increased information will have on substantive insurance law (and in particular duties of good faith disclosure and fair presentation of risk); and (iii) the impact that insurers' new knowledge may have on individual and group access to insurance. This raises several consequential legal questions: (i) To what extent is the use of big data analytics to profile risk compatible (at least in the EU) with the General Data Protection Regulation? (ii) Does insurers' ability to parse vast quantities of individual data about insureds invert the information asymmetry that has historically existed between insured and insurer such as to breathe life into insurers' duty of good faith disclosure? And (iii) by what means might legal challenges be brought against insurers both in relation to the use of big data and the consequences it may have on access to cover? Written by a leading expert in the field, this book will both stimulate further debate and operate as a reference text for academics and practitioners who are faced with emerging legal problems arising from the increasing opportunities that big data offers to the insurance industry.

Author : Veronica Barassi
Publisher : MIT Press
ISBN 13 : 0262044714
Total Pages : 233 pages
Book Rating : 4.14/5 ( download)

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Download or read book Child Data Citizen written by Veronica Barassi and published by MIT Press. This book was released on 2020-12-22 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the datafication of family life--in particular, the construction of our children into data subjects. Our families are being turned into data, as the digital traces we leave are shared, sold, and commodified. Children are datafied even before birth, with pregnancy apps and social media postings, and then tracked through babyhood with learning apps, smart home devices, and medical records. If we want to understand the emergence of the datafied citizen, Veronica Barassi argues, we should look at the first generation of datafied natives: our children. In Child Data Citizen, she examines the construction of children into data subjects, describing how their personal information is collected, archived, sold, and aggregated into unique profiles that can follow them across a lifetime.

Author : Jack E. Olson
Publisher : Morgan Kaufmann
ISBN 13 : 0080884423
Total Pages : 310 pages
Book Rating : 4.24/5 ( download)

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Download or read book Database Archiving written by Jack E. Olson and published by Morgan Kaufmann. This book was released on 2010-07-28 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the amount of data a business accumulates now doubling every 12 to 18 months, IT professionals need to know how to develop a system for archiving important database data, in a way that both satisfies regulatory requirements and is durable and secure. This important and timely new book explains how to solve these challenges without compromising the operation of current systems. It shows how to do all this as part of a standardized archival process that requires modest contributions from team members throughout an organization, rather than the superhuman effort of a dedicated team. Exhaustively considers the diverse set of issues—legal, technological, and financial—affecting organizations faced with major database archiving requirements Shows how to design and implement a database archival process that is integral to existing procedures and systems Explores the role of players at every level of the organization—in terms of the skills they need and the contributions they can make. Presents its ideas from a vendor-neutral perspective that can benefit any organization, regardless of its current technological investments Provides detailed information on building the business case for all types of archiving projects

Author : Brian Hebert
Publisher : Createspace Independent Pub
ISBN 13 : 9781499306347
Total Pages : 198 pages
Book Rating : 4.42/5 ( download)

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Download or read book Data Profiling written by Brian Hebert and published by Createspace Independent Pub. This book was released on 2014-04-29 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide to data profiling is an introduction to working with relational database metadata. Written for IT professionals by a noted expert in the field, Data Profiling avoids technical fluff and abstract theorizing, providing you with concrete examples that help teach you to glean valuable information from databases using ScribeKey software. While much of the functionality provided by ScribeKey's data profiler is available in other tools, two key aspects to ScribeKey's method make it a good choice for learning about data profiling. By capturing data profile information as database tables, ScribeKey software allows for a higher degree of integration between data and metadata. These results can be used with numerous database products, including Oracle, SQL Server, DB2, MySql, Postgres, MS Access, and dBase. They can also be exported to easily shared Microsoft Excel documents. With this integration, and no new GUI to learn, you can leverage data exploration tools and techniques that you already possess. In addition, ScribeKey's use of a command line interface facilitates integration with other batch command tools, allowing developers to combine functionality in .bat or .com files. With this powerful tool at your command, Data Profiling offers the easiest way to learn the basic skills of database analysis: describing contents, measuring quality, and tracking change.

Author : Jack E. Olson
Publisher : Elsevier
ISBN 13 : 0080503691
Total Pages : 300 pages
Book Rating : 4.91/5 ( download)

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Download or read book Data Quality written by Jack E. Olson and published by Elsevier. This book was released on 2003-01-09 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Quality: The Accuracy Dimension is about assessing the quality of corporate data and improving its accuracy using the data profiling method. Corporate data is increasingly important as companies continue to find new ways to use it. Likewise, improving the accuracy of data in information systems is fast becoming a major goal as companies realize how much it affects their bottom line. Data profiling is a new technology that supports and enhances the accuracy of databases throughout major IT shops. Jack Olson explains data profiling and shows how it fits into the larger picture of data quality. * Provides an accessible, enjoyable introduction to the subject of data accuracy, peppered with real-world anecdotes. * Provides a framework for data profiling with a discussion of analytical tools appropriate for assessing data accuracy. * Is written by one of the original developers of data profiling technology. * Is a must-read for any data management staff, IT management staff, and CIOs of companies with data assets.

Author : Devin Knight
Publisher : Packt Publishing Ltd
ISBN 13 : 1789955637
Total Pages : 780 pages
Book Rating : 4.37/5 ( download)

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Download or read book Microsoft Power BI Complete Reference written by Devin Knight and published by Packt Publishing Ltd. This book was released on 2018-12-21 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design, develop, and master efficient Power BI solutions for impactful business insights Key FeaturesGet to grips with the fundamentals of Microsoft Power BI Combine data from multiple sources, create visuals, and publish reports across platformsUnderstand Power BI concepts with real-world use casesBook Description Microsoft Power BI Complete Reference Guide gets you started with business intelligence by showing you how to install the Power BI toolset, design effective data models, and build basic dashboards and visualizations that make your data come to life. In this Learning Path, you will learn to create powerful interactive reports by visualizing your data and learn visualization styles, tips and tricks to bring your data to life. You will be able to administer your organization's Power BI environment to create and share dashboards. You will also be able to streamline deployment by implementing security and regular data refreshes. Next, you will delve deeper into the nuances of Power BI and handling projects. You will get acquainted with planning a Power BI project, development, and distribution of content, and deployment. You will learn to connect and extract data from various sources to create robust datasets, reports, and dashboards. Additionally, you will learn how to format reports and apply custom visuals, animation and analytics to further refine your data. By the end of this Learning Path, you will learn to implement the various Power BI tools such as on-premises gateway together along with staging and securely distributing content via apps. This Learning Path includes content from the following Packt products: Microsoft Power BI Quick Start Guide by Devin Knight et al. Mastering Microsoft Power BI by Brett PowellWhat you will learnConnect to data sources using both import and DirectQuery optionsLeverage built-in and custom visuals to design effective reportsAdminister a Power BI cloud tenant for your organizationDeploy your Power BI Desktop files into the Power BI Report ServerBuild efficient data retrieval and transformation processesWho this book is for Microsoft Power BI Complete Reference Guide is for those who want to learn and use the Power BI features to extract maximum information and make intelligent decisions that boost their business. If you have a basic understanding of BI concepts and want to learn how to apply them using Microsoft Power BI, then Learning Path is for you. It consists of real-world examples on Power BI and goes deep into the technical issues, covers additional protocols, and much more.

Author : Renato Baruti
Publisher : Packt Publishing Ltd
ISBN 13 : 1788398688
Total Pages : 219 pages
Book Rating : 4.88/5 ( download)

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Download or read book Learning Alteryx written by Renato Baruti and published by Packt Publishing Ltd. This book was released on 2017-12-26 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implement your Business Intelligence solutions without any coding - by leveraging the power of the Alteryx platform About This Book Experience the power of codeless analytics using Alteryx, a leading Business Intelligence tool Uncover hidden trends and valuable insights from your data across different sources and make accurate predictions Includes real-world examples to put your understanding of the features in Alteryx to practical use Who This Book Is For This book is for aspiring data professionals who want to learn and implement self-service analytics from scratch, without any coding. Those who have some experience with Alteryx and want to gain more proficiency will also find this book to be useful. A basic understanding of the data science concepts is all you need to get started with this book. What You Will Learn Create efficient workflows with Alteryx to answer complex business questions Learn how to speed up the cleansing, data preparing, and shaping process Blend and join data into a single dataset for self-service analysis Write advanced expressions in Alteryx leading to an optimal workflow for efficient processing of huge data Develop high-quality, data-driven reports to improve consistency in reporting and analysis Explore the flexibility of macros by automating analytic processes Apply predictive analytics from spatial, demographic, and behavioral analysis and quickly publish, schedule Share your workflows and insights with relevant stakeholders In Detail Alteryx, as a leading data blending and advanced data analytics platform, has taken self-service data analytics to the next level. Companies worldwide often find themselves struggling to prepare and blend massive datasets that are time-consuming for analysts. Alteryx solves these problems with a repeatable workflow designed to quickly clean, prepare, blend, and join your data in a seamless manner. This book will set you on a self-service data analytics journey that will help you create efficient workflows using Alteryx, without any coding involved. It will empower you and your organization to take well-informed decisions with the help of deeper business insights from the data.Starting with the fundamentals of using Alteryx such as data preparation and blending, you will delve into the more advanced concepts such as performing predictive analytics. You will also learn how to use Alteryx's features to share the insights gained with the relevant decision makers. To ensure consistency, we will be using data from the Healthcare domain throughout this book. The knowledge you gain from this book will guide you to solve real-life problems related to Business Intelligence confidently. Whether you are a novice with Alteryx or an experienced data analyst keen to explore Alteryx's self-service analytics features, this book will be the perfect companion for you. Style and approach Comprehensive, step by step guide filled with real-world examples to step through the complex business questions using one of the leading data analytics platform.

Author : David Loshin
Publisher : Morgan Kaufmann
ISBN 13 : 9781558609167
Total Pages : 294 pages
Book Rating : 4.64/5 ( download)

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Download or read book Business Intelligence written by David Loshin and published by Morgan Kaufmann. This book was released on 2003 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Business Intelligence describes the basic architectural components of a business intelligence environment, ranging from traditional topics such as business process modeling, data modeling, and more modern topics such as business rule systems, data profiling, information compliance and data quality, data warehousing, and data mining. This book progresses through a logical sequence, starting with data model infrastructure, then data preparation, followed by data analysis, integration, knowledge discovery, and finally the actual use of discovered knowledge. The book contains a quick reference guide for business intelligence terminology. Business Intelligence is part of Morgan Kaufmann's Savvy Manager's Guide series. * Provides clear explanations without technical jargon, followed by in-depth descriptions. * Articulates the business value of new technology, while providing relevant introductory technical background. * Contains a handy quick-reference to technologies and terminologies. * Guides managers through developing, administering, or simply understanding business intelligence technology. * Bridges the business-technical gap. * Is Web enhanced. Companion sites to the book and series provide value-added information, links, discussions, and more.