Contents

• Introduction
  • Project Overview
  • Okapi: The Story So Far
  • Query Enhancement
    • The CILKS Thesaurus Project
  • Query Expansion
    • Automatic Expansion: The VT100 Interface
    • Interactive Expansion: The XOkapi GUI
  • The ENQUIRE Project
    • Aims and Objectives
    • Report Structure
• The ENQUIRE Framework
  • Infrastructure Design
    • The Interface Tool
    • The Query Model
    • Internal Communications
  • System Architecture
    • The Interface Layer
    • The Query Layer
    • The Basic Search System
    • The Thesaurus Database
    • Towards a Distributed System
  • Implementation Issues
    • Term Set Manipulation
      • Suggested words from the thesaurus
      • Eliminating term duplication
    • Ranking Thresholds
    • Incremental Query Expansion
    • Session Management and Transaction Logging
    • Extensions
• The ENQUIRE Interface
  • Design Principles
  • User and Environment
    • The Typical User?
  • Querying and Searching
    • Query Formulation and Reformulation
    • The Search Process
  • Design Decisions
    • Presentation
    • Flow of Control
  • Features and Functionality
    • Extensions
      • User-defined phrases
      • Query faceting
      • Graphical thesaurus display
      • Enriched hit-list display
      • Histories and backtracking
      • Playback logs
      • Multiple query methods
  • Interface Components
    • The Entry Area
    • The Query Area
    • The Suggested Words Area
    • The Thesaurus Area
    • The Document Display Area
    • The Titles List Area
    • The Document Pool Area
    • The Button Bar
    • On-line Help
• Formative Evaluations
  • Iterative Design
  • First Formative Evaluation
    • Resources
    • Participants
    • Evaluation Methods
      • Observation
      • Think-aloud
      • Interviews
    • Questionnaire Results
    • System Usage
      • Using the widgets
      • Making use of the Help notes
      • Getting to and from the thesaurus
      • Moving terms into and out of the query
      • Adding new terms
      • Navigating the hitlist
      • Recognising the significance of thesaurus partial matches
      • Recognising the implications of relevance judgements
      • Recognising why extracted terms were added to the query
      • Recognising when the hitlist changed
      • How do users formulate their initial query?
      • How did users decide which terms to add?
      • How did users interpret the thesaurus display and functionality?
      • How did users make relevance judgements?
      • How did users compare ENQUIRE with other systems?
  • Second Evaluation
    • Test Design
    • Method
    • Participants
    • Queries
    • System Usage
      • Search success
    • Questionnaire Analysis
      • How users formulated their initial query
      • How users perceived the ``Suggested Words'' list
      • Whether users understood the implications of their relevance judgements
      • What users thought of ENQUIRE in general
• Large-Scale Evaluation
  • Field Trials
    • Data Collection
    • Resources
    • Data Analysis
    • Measures of Success
  • Results
    • Session Summaries
    • Initial Searches
    • Document Viewing and Judgement
    • Query Reformulation
    • Query Expansion
    • Expanded Searching
    • Search Success
• Discussion and Conclusions
  • Searching Behaviour
    • Brief Initial Queries
    • Satisfaction with Initial Queries and Search Results
    • Small Number of Documents Viewed and Judged Relevant
    • Limited Query Reformulation with Selective Strategies
  • Incremental Query Expansion
  • Automatic v Interactive Query Expansion
  • Evaluation Constraints
    • Site Selection
    • Distributed Networked Environment
    • Database Test Beds
    • User Interface
    • Data Collection Instruments
    • Information-seeking Activities
  • Summary of Findings
    • Explicit v Implicit Use of the Thesaurus
    • Automatic v Interactive Query Expansion
    • System v User Control
    • Document v Term Relevance
    • Interface v Functionality
• References
• Conference Paper: ``Query Modelling as a Basis for IR Interface Design''
• Example of a Constraint Matrix
• Screen Dumps of the Interface
• Transaction Log Tables
  • Detailed list of tables and table attributes
    • Command names table: cmd_names
    • Users table: users
    • Session table: sessions
    • Command table: commands
    • Query table: queries
    • Partial Match List table: matches
    • Search table: searches
    • Table of Document Titles: doctitles
    • Pool table: pools
    • Termset table: termsets
    • Thesaurus navigation table: navigates
    • Hitlist table: hitlists
• First Formative Evaluation : Test Administration Script
• First Formative Evaluation: Pre-test Questionnaire
• First Formative Evaluation : Post-Test Interview Topics
• Second Formative Evaluation: Pre-test Questionnaire
• Second Formative Evaluation : Post-test Questionnaire
• About this document ...