MATERIAL Bulgarian-English Language Pack

<h3>Introduction</h3>
<p>MATERIAL Bulgarian-English Language Pack was developed by <a href="http://www.appen.com/">Appen</a>&nbsp;for the IARPA (Intelligence Advanced Research Projects Activity)&nbsp;<a href="https://www.iarpa.gov/index.php/research-programs/material">MATERIAL</a> (Machine Translation for English Retrieval of Information in Any Language) program. It contains approximately 78 hours of Bulgarian conversational telephone speech, transcripts, English translations, annotations and queries.</p>
<p>The MATERIAL program focused on underserved languages with the ultimate goal to build cross language information retrieval systems to find speech and text content using English search queries.</p>
<h3>Data</h3>
<p>The Bulgarian speech in this release represents the Western and Eastern dialects. The gender distribution among speakers is approximately equal; speakers' ages range from 16 years to 67 years. Calls were made using different telephones (e.g., mobile, landline) from a variety of environments including the street, a home or office, a public place, and inside a vehicle.</p>
<p>Transcripts cover approximately 40% of the speech files, and approximately 10% of the speech files were translated into English. Further information about transcription and translation methodologies is contained in the documentation accompanying this release.</p>
<p>Bulgarian-English Language Pack also includes English queries and their relevance annotations. Annotators marked transcripts by query (simple, conceptual, hybrid) and by their relevance to query search terms.</p>
<p>Speech data is presented either as two channel wav or single channel sphere files, both in 8kHz A-law format. All text data is UTF-8 encoded.</p>
<h3>Samples</h3>
<p>Please view the following samples:</p>
<ul>
<li><a href="desc/addenda/LDC2024S07.wav">Audio Sample (WAV)</a></li>
<li><a href="desc/addenda/LDC2024S07.transcription.txt">Transcript Sample (TXT)</a></li>
<li><a href="desc/addenda/LDC2024S07.translation.eng.txt">Translation Sample (TXT)</a></li>
</ul>
<h3>Updates</h3>
<p>None at this time.</p>