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Contents

I  GATE Basics
1 Introduction
 1.1 How to Use this Text
 1.2 Context
 1.3 Overview
  1.3.1 Developing and Deploying Language Processing Facilities
  1.3.2 Built-In Components
  1.3.3 Additional Facilities
  1.3.4 An Example
 1.4 Some Evaluations
 1.5 Changes in this Version
  1.5.1 Version 5.1 (December 2009)
 1.6 Further Reading
2 Installing and Running GATE
 2.1 Downloading GATE
 2.2 Installing and Running GATE
  2.2.1 The Easy Way
  2.2.2 The Hard Way (1)
  2.2.3 The Hard Way (2): Subversion
 2.3 Using System Properties with GATE
 2.4 Configuring GATE
 2.5 Building GATE
  2.5.1 Using GATE with Maven or JPF
 2.6 Uninstalling GATE
 2.7 Troubleshooting
  2.7.1 I don’t see the Java console messages under Windows
  2.7.2 When I execute GATE, nothing happens
  2.7.3 On Ubuntu, GATE is very slow or doesn’t start
  2.7.4 How to use GATE on a 64 bit system?
  2.7.5 I got the error: Could not reserve enough space for object heap
  2.7.6 I got the error: log4j:WARN No appenders could be found for logger...
  2.7.7 Text is incorrectly refreshed after scrolling and become unreadable
3 Using GATE Developer
 3.1 The GATE Developer Main Window
 3.2 Loading and Viewing Documents
 3.3 Creating and Viewing Corpora
 3.4 Working with Annotations
  3.4.1 The Annotation Sets View
  3.4.2 The Annotations List View
  3.4.3 The Annotations Stack View
  3.4.4 The Co-reference Editor
  3.4.5 Creating and Editing Annotations
  3.4.6 Schema-Driven Editing
  3.4.7 Printing Text with Annotations
 3.5 Using CREOLE Plugins
 3.6 Loading and Using Processing Resources
 3.7 Creating and Running an Application
  3.7.1 Running PRs Conditionally on Document Features
  3.7.2 Doing Information Extraction with ANNIE
  3.7.3 Modifying ANNIE
 3.8 Saving Applications and Language Resources
  3.8.1 Saving Documents to File
  3.8.2 Saving and Restoring LRs in Datastores
  3.8.3 Saving Resource Parameter States to File
  3.8.4 Saving an Application with its Resources (e.g. GATE Teamware)
 3.9 Keyboard Shortcuts
 3.10 Miscellaneous
  3.10.1 Stopping GATE from Restoring Developer Sessions/Options
  3.10.2 Working with Unicode
4 CREOLE: the GATE Component Model
 4.1 The Web and CREOLE
 4.2 The GATE Framework
 4.3 The Lifecycle of a CREOLE Resource
 4.4 Processing Resources and Applications
 4.5 Language Resources and Datastores
 4.6 Built-in CREOLE Resources
 4.7 CREOLE Resource Configuration
  4.7.1 Configuration with XML
  4.7.2 Configuring Resources using Annotations
  4.7.3 Mixing the Configuration Styles
5 Language Resources: Corpora, Documents and Annotations
 5.1 Features: Simple Attribute/Value Data
 5.2 Corpora: Sets of Documents plus Features
 5.3 Documents: Content plus Annotations plus Features
 5.4 Annotations: Directed Acyclic Graphs
  5.4.1 Annotation Schemas
  5.4.2 Examples of Annotated Documents
  5.4.3 Creating, Viewing and Editing Diverse Annotation Types
 5.5 Document Formats
  5.5.1 Detecting the Right Reader
  5.5.2 XML
  5.5.3 HTML
  5.5.4 SGML
  5.5.5 Plain text
  5.5.6 RTF
  5.5.7 Email
 5.6 XML Input/Output
6 ANNIE: a Nearly-New Information Extraction System
 6.1 Document Reset
 6.2 Tokeniser
  6.2.1 Tokeniser Rules
  6.2.2 Token Types
  6.2.3 English Tokeniser
 6.3 Gazetteer
 6.4 Sentence Splitter
 6.5 RegEx Sentence Splitter
 6.6 Part of Speech Tagger
 6.7 Semantic Tagger
 6.8 Orthographic Coreference (OrthoMatcher)
  6.8.1 GATE Interface
  6.8.2 Resources
  6.8.3 Processing
 6.9 Pronominal Coreference
  6.9.1 Quoted Speech Submodule
  6.9.2 Pleonastic It Submodule
  6.9.3 Pronominal Resolution Submodule
  6.9.4 Detailed Description of the Algorithm
 6.10 A Walk-Through Example
  6.10.1 Step 1 - Tokenisation
  6.10.2 Step 2 - List Lookup
  6.10.3 Step 3 - Grammar Rules
II  GATE for Advanced Users
7 GATE Embedded
 7.1 Quick Start with GATE Embedded
 7.2 Resource Management in GATE Embedded
 7.3 Using CREOLE Plugins
 7.4 Language Resources
  7.4.1 GATE Documents
  7.4.2 Feature Maps
  7.4.3 Annotation Sets
  7.4.4 Annotations
  7.4.5 GATE Corpora
 7.5 Processing Resources
 7.6 Controllers
 7.7 Persistent Applications
 7.8 Ontologies
 7.9 Creating a New Annotation Schema
 7.10 Creating a New CREOLE Resource
 7.11 Adding Support for a New Document Format
 7.12 Using GATE Embedded in a Multithreaded Environment
 7.13 Using GATE Embedded within a Spring Application
 7.14 Using GATE Embedded within a Tomcat Web Application
  7.14.1 Recommended Directory Structure
  7.14.2 Configuration Files
  7.14.3 Initialization Code
 7.15 Groovy Scripting for GATE
 7.16 Saving Config Data to gate.xml
 7.17 Annotation merging through the API
8 JAPE: Regular Expressions over Annotations
 8.1 The Left-Hand Side
  8.1.1 Matching a Simple Text String
  8.1.2 Matching Entire Annotation Types
  8.1.3 Using Attributes and Values
  8.1.4 Using Meta-Properties
  8.1.5 Multiple Pattern/Action Pairs
  8.1.6 LHS Macros
  8.1.7 Using Context
  8.1.8 Multi-Constraint Statements
  8.1.9 Negation
  8.1.10 Escaping Special Characters
 8.2 LHS Operators in Detail
  8.2.1 Compositional Operators
  8.2.2 Matching Operators
 8.3 The Right-Hand Side
  8.3.1 A Simple Example
  8.3.2 Copying Feature Values from the LHS to the RHS
  8.3.3 RHS Macros
 8.4 Use of Priority
 8.5 Using Phases Sequentially
 8.6 Using Java Code on the RHS
  8.6.1 A More Complex Example
  8.6.2 Adding a Feature to the Document
  8.6.3 Finding the Tokens of a Matched Annotation
  8.6.4 Using Named Blocks
  8.6.5 Java RHS Overview
 8.7 Optimising for Speed
 8.8 Ontology Aware Grammar Transduction
 8.9 Serializing JAPE Transducer
  8.9.1 How to Serialize?
  8.9.2 How to Use the Serialized Grammar File?
 8.10 The JAPE Debugger
 8.11 Notes for Montreal Transducer Users
9 ANNIC: ANNotations-In-Context
 9.1 Instantiating SSD
 9.2 Search GUI
  9.2.1 Overview
  9.2.2 Syntax of Queries
  9.2.3 Top Section
  9.2.4 Central Section
  9.2.5 Bottom Section
 9.3 Using SSD from GATE Embedded
10 Performance Evaluation of Language Analysers
 10.1 Metrics for Evaluation in Information Extraction
  10.1.1 Annotation Relations
  10.1.2 Cohen’s Kappa
  10.1.3 Precision, Recall, F-Measure
  10.1.4 Macro and Micro Averaging
 10.2 The Annotation Diff Tool
  10.2.1 Performing Evaluation with the Annotation Diff Tool
 10.3 Corpus Quality Assurance
  10.3.1 Description of the interface
  10.3.2 Step by step usage
  10.3.3 Details of the Corpus statistics table
  10.3.4 Details of the Document statistics table
 10.4 Corpus Benchmark Tool
  10.4.1 Preparing the Corpora for Use
  10.4.2 Defining Properties
  10.4.3 Running the Tool
  10.4.4 The Results
 10.5 A Plugin Computing Inter-Annotator Agreement (IAA)
  10.5.1 IAA for Classification
  10.5.2 IAA For Named Entity Annotation
  10.5.3 The BDM-Based IAA Scores
 10.6 A Plugin Computing the BDM Scores for an Ontology
11 Profiling Processing Resources
 11.1 Overview
  11.1.1 Features
  11.1.2 Limitations
 11.2 Graphical User Interface
 11.3 Command Line Interface
 11.4 Application Programming Interface
  11.4.1 Log4j.properties
  11.4.2 Benchmark log format
  11.4.3 Enabling profiling
  11.4.4 Reporting tool
12 Developing GATE
 12.1 Reporting Bugs and Requesting Features
 12.2 Contributing Patches
 12.3 Creating New Plugins
  12.3.1 Where to Keep Plugins in the GATE Hierarchy
  12.3.2 What to Call your Plugin
  12.3.3 Writing a New PR
  12.3.4 Writing a New VR
  12.3.5 Adding Plugins to the Nightly Build
 12.4 Updating this User Guide
  12.4.1 Building the User Guide
  12.4.2 Making Changes to the User Guide
III  CREOLE Plugins
13 Gazetteers
 13.1 Introduction to Gazetteers
  13.1.1 Creating and Modifying Gazetteer Lists
 13.2 Gazetteer Visual Resource - GAZE
  13.2.1 Display Modes
  13.2.2 Linear Definition Pane
  13.2.3 Linear Definition Toolbar
  13.2.4 Operations on Linear Definition Nodes
  13.2.5 Gazetteer List Pane
  13.2.6 Mapping Definition Pane
 13.3 OntoGazetteer
 13.4 Gaze Ontology Gazetteer Editor
  13.4.1 The Gaze Gazetteer List and Mapping Editor
  13.4.2 The Gaze Ontology Editor
 13.5 Hash Gazetteer
  13.5.1 Prerequisites
  13.5.2 Parameters
 13.6 Flexible Gazetteer
 13.7 Gazetteer List Collector
 13.8 OntoRoot Gazetteer
  13.8.1 How Does it Work?
  13.8.2 Initialisation of OntoRoot Gazetteer
 13.9 Large KB Gazetteer
  13.9.1 Quick usage overview
  13.9.2 Dictionary setup
  13.9.3 Additional dictionary configuration
  13.9.4 Processing Resource Configuration
  13.9.5 Runtime configuration
  13.9.6 Semantic Enrichment PR
14 Working with Ontologies
 14.1 Data Model for Ontologies
  14.1.1 Hierarchies of Classes and Restrictions
  14.1.2 Instances
  14.1.3 Hierarchies of Properties
  14.1.4 URIs
 14.2 Ontology Event Model
  14.2.1 What Happens when a Resource is Deleted?
 14.3 The Ontology Plugin: Current Implementation
  14.3.1 The OWLIMOntology Language Resource
  14.3.2 The ConnectSesameOntology Language Resource
  14.3.3 The CreateSesameOntology Language Resource
  14.3.4 The OWLIM2 Backwards-Compatible Language Resource
 14.4 The Ontology_OWLIM2 plugin: backwards-compatible implementation
  14.4.1 The OWLIMOntologyLR Language Resource
 14.5 GATE Ontology Editor
 14.6 Ontology Annotation Tool
  14.6.1 Viewing Annotated Text
  14.6.2 Editing Existing Annotations
  14.6.3 Adding New Annotations
  14.6.4 Options
 14.7 Using the ontology API
 14.8 Using the ontology API (old version)
 14.9 Ontology-Aware JAPE Transducer
 14.10 Annotating Text with Ontological Information
 14.11 Populating Ontologies
 14.12 Ontology API and Implementation Changes
  14.12.1 Differences between the implementation plugins
  14.12.2 Changes in the Ontology API
15 Machine Learning
 15.1 ML Generalities
  15.1.1 Some Definitions
  15.1.2 GATE-Specific Interpretation of the Above Definitions
 15.2 Batch Learning PR
  15.2.1 Batch Learning PR Configuration File Settings
  15.2.2 Case Studies for the Three Learning Types
  15.2.3 How to Use the Batch Learning PR in GATE Developer
  15.2.4 Output of the Batch Learning PR
  15.2.5 Using the Batch Learning PR from the API
 15.3 Machine Learning PR
  15.3.1 The DATASET Element
  15.3.2 The ENGINE Element
  15.3.3 The WEKA Wrapper
  15.3.4 The MAXENT Wrapper
  15.3.5 The SVM Light Wrapper
  15.3.6 Example Configuration File
16 Tools for Alignment Tasks
 16.1 Introduction
 16.2 The Tools
  16.2.1 Compound Document
  16.2.2 Compound Document Editor
  16.2.3 Composite Document
  16.2.4 DeleteMembersPR
  16.2.5 SwitchMembersPR
  16.2.6 Saving as XML
  16.2.7 Alignment Editor
  16.2.8 Section-by-Section Processing
17 Parsers and Taggers
 17.1 Verb Group Chunker
 17.2 Noun Phrase Chunker
  17.2.1 Differences from the Original
  17.2.2 Using the Chunker
 17.3 Tree Tagger
  17.3.1 POS Tags
 17.4 TaggerFramework
 17.5 Chemistry Tagger
  17.5.1 Using the Tagger
 17.6 ABNER
 17.7 Stemmer
  17.7.1 Algorithms
 17.8 GATE Morphological Analyzer
  17.8.1 Rule File
 17.9 MiniPar Parser
  17.9.1 Platform Supported
  17.9.2 Resources
  17.9.3 Parameters
  17.9.4 Prerequisites
  17.9.5 Grammatical Relationships
 17.10 RASP Parser
 17.11 SUPPLE Parser
  17.11.1 Requirements
  17.11.2 Building SUPPLE
  17.11.3 Running the Parser in GATE
  17.11.4 Viewing the Parse Tree
  17.11.5 System Properties
  17.11.6 Configuration Files
  17.11.7 Parser and Grammar
  17.11.8 Mapping Named Entities
  17.11.9 Upgrading from BuChart to SUPPLE
 17.12 Stanford Parser
  17.12.1 Input Requirements
  17.12.2 Initialization Parameters
  17.12.3 Runtime Parameters
 17.13 OpenCalais, LingPipe and OpenNLP
18 Combining GATE and UIMA
 18.1 Embedding a UIMA AE in GATE
  18.1.1 Mapping File Format
  18.1.2 The UIMA Component Descriptor
  18.1.3 Using the AnalysisEnginePR
 18.2 Embedding a GATE CorpusController in UIMA
  18.2.1 Mapping File Format
  18.2.2 The GATE Application Definition
  18.2.3 Configuring the GATEApplicationAnnotator
19 More (CREOLE) Plugins
 19.1 Language Plugins
  19.1.1 French Plugin
  19.1.2 German Plugin
  19.1.3 Romanian Plugin
  19.1.4 Arabic Plugin
  19.1.5 Chinese Plugin
  19.1.6 Hindi Plugin
 19.2 Flexible Exporter
 19.3 Annotation Set Transfer
 19.4 Information Retrieval in GATE
  19.4.1 Using the IR Functionality in GATE
  19.4.2 Using the IR API
 19.5 Websphinx Web Crawler
  19.5.1 Using the Crawler PR
 19.6 Google Plugin
 19.7 Yahoo Plugin
  19.7.1 Using the YahooPR
 19.8 WordNet in GATE
  19.8.1 The WordNet API
 19.9 Kea - Automatic Keyphrase Detection
  19.9.1 Using the ‘KEA Keyphrase Extractor’ PR
  19.9.2 Using Kea Corpora
 19.10 Ontotext JapeC Compiler
 19.11 Annotation Merging Plugin
 19.12 Chinese Word Segmentation
 19.13 Copying Annotations between Documents
 19.14 OpenCalais Plugin
 19.15 LingPipe Plugin
  19.15.1 LingPipe Tokenizer PR
  19.15.2 LingPipe Sentence Splitter PR
  19.15.3 LingPipe POS Tagger PR
  19.15.4 LingPipe NER PR
  19.15.5 LingPipe Language Identifier PR
 19.16 OpenNLP Plugin
  19.16.1 Parameters common to all PRs
  19.16.2 OpenNLP PRs
  19.16.3 Training new models
 19.17 Inter Annotator Agreement
 19.18 Balanced Distance Metric Computation
 19.19 Schema Annotation Editor
Appendices
A Change Log
 A.1 Version 5.1 (December 2009)
  A.1.1 New Features
  A.1.2 JAPE improvements
  A.1.3 Other improvements and bug fixes
 A.2 Version 5.0 (May 2009)
  A.2.1 Major New Features
  A.2.2 Other New Features and Improvements
  A.2.3 Specific Bug Fixes
 A.3 Version 4.0 (July 2007)
  A.3.1 Major New Features
  A.3.2 Other New Features and Improvements
  A.3.3 Bug Fixes and Optimizations
 A.4 Version 3.1 (April 2006)
  A.4.1 Major New Features
  A.4.2 Other New Features and Improvements
  A.4.3 Bug Fixes
 A.5 January 2005
 A.6 December 2004
 A.7 September 2004
 A.8 Version 3 Beta 1 (August 2004)
 A.9 July 2004
 A.10 June 2004
 A.11 April 2004
 A.12 March 2004
 A.13 Version 2.2 – August 2003
 A.14 Version 2.1 – February 2003
 A.15 June 2002
B Version 5.1 Plugins Name Map
C Design Notes
 C.1 Patterns
  C.1.1 Components
  C.1.2 Model, view, controller
  C.1.3 Interfaces
 C.2 Exception Handling
D JAPE: Implementation
 D.1 Formal Description of the JAPE Grammar
 D.2 Relation to CPSL
 D.3 Initialisation of a JAPE Grammar
 D.4 Execution of JAPE Grammars
 D.5 Using a Different Java Compiler
E Ant Tasks for GATE
 E.1 Declaring the Tasks
 E.2 The packagegapp task - bundling an application with its dependencies
  E.2.1 Introduction
  E.2.2 Basic Usage
  E.2.3 Handling Non-Plugin Resources
  E.2.4 Streamlining your Plugins
  E.2.5 Bundling Extra Resources
 E.3 The expandcreoles Task - Merging Annotation-Driven Config into creole.xml
F Named-Entity State Machine Patterns
 F.1 Main.jape
 F.2 first.jape
 F.3 firstname.jape
 F.4 name.jape
  F.4.1 Person
  F.4.2 Location
  F.4.3 Organization
  F.4.4 Ambiguities
  F.4.5 Contextual information
 F.5 name_post.jape
 F.6 date_pre.jape
 F.7 date.jape
 F.8 reldate.jape
 F.9 number.jape
 F.10 address.jape
 F.11 url.jape
 F.12 identifier.jape
 F.13 jobtitle.jape
 F.14 final.jape
 F.15 unknown.jape
 F.16 name_context.jape
 F.17 org_context.jape
 F.18 loc_context.jape
 F.19 clean.jape
G Part-of-Speech Tags used in the Hepple Tagger
References