Updated on November 13, 2025

YAG – Real-Time Template-Based NLG System | NLG-Wiki

Explore YAG, a real-time, general-purpose natural language generation system leveraging advanced templates and attribute grammars. Discover architecture, applications and research references.

YAG – A Natural Language Generation (NLG) System Overview

What is YAG?

YAG is a real-time, general-purpose natural language generation (NLG) system developed to generate fluent text from structured inputs using an enriched template-based architecture.

Architecture and Key Features

YAG bridges traditional template-based NLG with deeper linguistic processes. While it uses templates, it incorporates attribute grammars and syntactic reasoning to handle subject-verb agreement, number, person and other linguistic variations.

Typical components include:

  • Input: Structured fact records or event descriptions.

  • Template library: Templates with placeholders, conditions and optional recursive structure.

  • Attribute grammar rules: For morphological and syntactic adjustments (e.g., singular/plural, verb form).

  • Output: Natural language sentences or paragraphs in real time.

Application Areas

YAG is designed for domains needing fast, reliable text generation from data, such as:

  • Interactive tutoring systems and feedback generation

  • Report generation, narrative summaries from database records

  • Dialogue or explanation systems in educational contexts

Why YAG Matters

YAG demonstrates how modern template-based NLG systems can scale to real-time, general-purpose usage without fully shifting to neural models. Its hybrid design illustrates a middle ground between purely rule-based systems and statistical/textual approaches.

How to Use the YAG Entry on NLG-Wiki

  • Navigate to the “Systems” section and select YAG.

  • Review metadata: architecture type (template + attribute grammar), input/output types, domain examples.

  • Check linked publications for deeper insights (e.g., McRoy, Channarukul & Ali 2003).

  • Compare YAG with other listed systems to evaluate different NLG design trade-offs.

FAQ – YAG System

What is YAG used for?
YAG is used to generate natural-language text from structured data in real time, especially where linguistic variation matters.

Is YAG purely template-based?
While template-based, YAG integrates grammar rules and attribute processing to increase flexibility and linguistic accuracy.

Can YAG work for multiple languages?
In principle yes — its modular design allows adaptation, though most documented uses focus on English.

Where can I find more details?
See YAG’s entry on NLG-Wiki and referenced research articles.

Natural Language Generation – Research Hub on NLG-Wiki.org
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