Title: Search engines : information retrieval in practice /
Authors: Croft, W. Bruce.; Metzler, Donald.; Strohman, Trevor.
Publisher: Addison-Wesley,
Year: 2010
Subjects: Search engines Programming.; Information retrieval; Information Storage and Retrieval; Knowledge Bases; Information retrieval; Search engines Programming
Abstract: "Search Engines: Information Retrieval in Practice introduces the key issues in information retrieval (IR) and shows how they affect the design and implementation of search engines, with mathematical models reinforcing important concepts. This book is ideal for an introductory course on IR at either the undergraduate or master's level or for professionals seeking an authoritative introduction. An extensive set of resources is available to instructors."--BOOK JACKET.
Contents: 1 Search Engines and Information Retrieval ... 1 1.1 What is Information Retrieval? ... 1 1.2 Search Engines ... 6 1.3 Search Engineers ... 9 1.4 Book Overview ... 10 2 Architecture of a Search Engine ... 15 2.1 What is an Architecture? ... 15 2.2 Basic Building Blocks ... 16 2.3 Breaking It Down ... 19 2.3.1 Text Acquisition ... 19 2.3.2 Text Transformation ... 21 2.3.3 Index Creation ... 24 2.3.4 User Interaction ... 25 2.3.5 Ranking ... 27 2.3.6 Evaluation ... 29 2.4 How Does It Really Work? ... 30 3 Crawls and Feeds ... 33 3.1 Deciding what to search ... 33 3.2 Crawling the Web ... 33 3.3 Directory Crawling ... 34 3.4 Document Feeds ... 34 3.5 The Conversion Problem ... 34 3.6 Storing the Documents ... 35 3.7 Detecting Duplicates ... 36 3.8 Removing Noise ... 39 4 Processing Text ... 47 4.1 From Words to Terms ... 47 4.2 Text Statistics ... 49 4.2.1 Vocabulary Growth ... 54 4.2.2 Estimating Database and Result Set Sizes ... 57 4.3 Document Parsing ... 60 4.3.1 Overview ...^