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Introduction to search with Sphinx /
This concise introduction to Sphinx shows you how to use this free software to index an enormous number of documents and provide fast results to both simple and complex searches.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Sebastopol, CA :
O'Reilly,
©2011.
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| Edición: | 1st ed. |
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
Tabla de Contenidos:
- Copyright; Table of Contents; Preface; Audience; Organization of This Book; Conventions Used in This Book; Using Code Examples; We'd Like to Hear from You; Safari® Books Online; Acknowledgments; Chapter 1. The World of Text Search; Terms and Concepts in Search; Thinking in Documents Versus Databases; Why Do We Need Full-Text Indexes?; Query Languages; Logical Versus Full-Text Conditions; Logical conditions; Full-text queries; Differences between logical and full-text searches; Natural Language Processing; From Text to Words; Linguistics Crash Course; Relevance, As Seen from Outer Space
- Result Set PostprocessingFull-Text Indexes; Search Workflows; Kinds of Data; Indexing Approaches; Full-Text Indexes and Attributes; Approaches to Searching; Kinds of Results; Chapter 2. Getting Started with Sphinx; Workflow Overview; Getting Started ... in a Minute; Basic Configuration; Defining Data Sources; Disk-based indexes; RT indexes; Distributed indexes; Declaring Fields and Attributes in SQL Data; Sphinx-Wide Settings; Managing Configurations with Inheritance and Scripting; Accessing searchd; Configuring Interfaces; Using SphinxAPI; Using SphinxQL; Building Sphinx from Source
- Quick BuildSource Build Requirements; Configuring Sources and Building Binaries; Chapter 3. Basic Indexing; Indexing SQL Data; Main Fetch Query; Pre-Queries, Post-Queries, and Post-Index Queries; How the Various SQL Queries Work Together; Ranged Queries for Larger Data Sets; Indexing XML Data; Index Schemas for XML Data; XML Encodings; xmlpipe2 Elements Reference; Working with Character Sets; Handling Stop Words and Short Words; Chapter 4. Basic Searching; Matching Modes; Full-Text Query Syntax; Known Operators; Escaping Special Characters; AND and OR Operators and a Notorious Precedence Trap
- NOT OperatorField Limit Operator; Phrase Operator; Keyword Proximity Operator; Quorum Operator; Strict Order (BEFORE) Operator; NEAR Operator; SENTENCE and PARAGRAPH Operators; ZONE Limit Operator; Keyword Modifiers; Result Set Contents and Limits; Searching Multiple Indexes; Result Set Processing; Expressions; Filtering; Sorting; Grouping; Chapter 5. Managing Indexes; The "Divide and Conquer" Concept; Index Rotation; Picking Documents; Handling Updates and Deletions with K-Lists; Scheduling Rebuilds, and Using Multiple Deltas; Merge Versus Rebuild Versus Deltas
- Scripting and Reloading ConfigurationsChapter 6. Relevance and Ranking; Relevance Assessment: A Black Art; Relevance Ranking Functions; Sphinx Rankers Explained; BM25 Factor; Phrase Proximity Factor; Overview of the Available Rankers; Nitty-gritty Ranker Details; How Do I Draw Those Stars?; How Do I Rank Exact Field Matches Higher?; How Do I Force Document D to Rank First?; How Does Sphinx Ranking Compare to System XYZ?; Where to Go from Here