AIDA Scenario 2 Practice Topic Annotation

<h3>Introduction</h3>
<p>AIDA Scenario 2 Practice Topic Annotation was developed by the Linguistic Data Consortium (LDC) and is comprised of annotations for 29 English, Russian and Spanish web documents (text, image and video) from <a href="../../../LDC2024T04">AIDA Scenario 2 Practice Topic Source Data (LDC2024T04)</a>.</p>
<p>The DARPA AIDA (Active Interpretation of Disparate Alternatives) program aimed to develop a multi-hypothesis semantic engine to generate explicit alternative interpretations of events, situations and trends from a variety of unstructured sources. LDC supported AIDA by collecting, creating and annotating multimodal linguistic resources in multiple languages.</p>
<p>Each phase of the AIDA program centered on a specific scenario, or broad topic area, with related subtopics designated as either practice subtopics or evaluation subtopics. The Phase 2 scenario focused on the socioeconomic and political crisis in Venezuela since 2010. This corpus contains annotations for the set of practice documents designated for annotation in Phase 2.</p>
<h3>Data</h3>
<p>Annotations are presented as tab separated files in the following categories for each topic.</p>
<ul>
<li>Mentions: single references in source data to a real-world entity or filler, event, or relation. There are three mentions tables for each topic, one for entities and fillers, one for relations, and one for events.</li>
<li>Slots: pre-defined roles in an event or relation filled by an argument (entity mention). There are two slots tables per topic, one for relations and one for events.</li>
<li>Linking: entity mentions "linked" to entries in the knowledge base as a method of indicating the real-world entity to which an entity referred.</li>
</ul>
<h3>Sponsorship</h3>
<p>This material is based upon work supported by Air Force Research Laboratory (AFRL) and the Defense Advanced Research Projects Agency (DARPA) under Contract No. FA8750-18-C-0013.</p>