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This item has FREE SHIPPING to any address in NZ
NOTE: Item will ship from our Australian warehouse. Orders shipped within 1-2 days. Delivery will then take 3-7 working days. Data Cleaning
Condition: BRAND NEW Free shipping on all items!
The Product: ISBN: 9781608456772 ISBN-13 / EAN: 9781608456772 Author(s): Venkatesh Ganti Format: Paperback Year: 2011 Publisher: Morgan & Claypool Publishers Dimensions: 191 x 4 x 235 (w x l x h) Pages: 86
BUYER OFFERS: We are a retail store with set pricing and unfortunately we can't fulfil any requests to sell items for less than the listed price.
Description: Data warehouses consolidate various activities of a business and often form the backbone for generating reports that support important business decisions. Errors in data tend to creep in for a variety of reasons. Some of these reasons include errors during input data collection and errors while merging data collected independently across different databases. These errors in data warehouses often result in erroneous upstream reports, and could impact business decisions negatively. Therefore, one of the critical challenges while maintaining large data warehouses is that of ensuring the quality of data in the data warehouse remains high. The process of maintaining high data quality is commonly referred to as data cleaning. In this book, we first discuss the goals of data cleaning. Often, the goals of data cleaning are not well defined and could mean different solutions in different scenarios. Toward clarifying these goals, we abstract out a common set of data cleaning tasks that often need to be addressed. This abstraction allows us to develop solutions for these common data cleaning tasks. We then discuss a few popular approaches for developing such solutions. In particular, we focus on an operator-centric approach for developing a data cleaning platform. The operator-centric approach involves the development of customizable operators that could be used as building blocks for developing common solutions. This i
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