CALLHOME American English Lexicon (PRONLEX) Second Edition: citation-form pronunciations following the PRONLEX phonemic transcription schema for 90,988 words from WSJ CSR text and transcripts from the Switchboard and CALLHOME American English collections bit.ly/3SRBWn7

CALLHOME American English Second Edition brings original speech and transcript datasets up to date with new transcripts and revised directories, file formats and documentation bit.ly/3SOb3R3

2012 NIST SRE Test Set: 10,000+ hours of English conversational telephone speech and interviews from LDC’s Mixer collections for test and modeling, along with answer keys, trial files and documentation bit.ly/3SR9txM

See LDC’s July newsletter for information on Fall 2026 data scholarship applications and three new publications – 2012 NIST SRE Test Set, CALLHOME American English Second Edition and CALLHOME American English Lexicon (PRONLEX) Second Edition ldc-upenn.blogspot.com

LORELEI Multiway Translated Text: a fixed set of English texts translated into 24 languages and used in the representative language packs developed by LDC for the DARPA LORELEI program; source data was newswire, a phrasebook and an elicitation corpus bit.ly/4ooyQ5B

Multi-Language Conversational Telephone Speech 2014 – Spanish & Portuguese: 123 hours of Brazilian Portuguese, Caribbean Spanish, European Spanish and Latin American Spanish recordings for automatic language identification research & technology evaluation bit.ly/4vGujhn

KAIROS Phase 1 Evaluation Source Data, Annotation & Assessment: English & Spanish web data, annotations, knowledge graphs, system output assessment & human assessment results for 10 complex events, developed by LDC to support the DARPA KAIROS program bit.ly/43qUWej

LDC’s June newsletter contains important announcements for LDC organization account administrators and data licensees as well as details on three new publications ldc-upenn.blogspot.com

CALLHOME German Lexicon Second Edition: morphological, phonological, stress and frequency information for 318,809 German words from CELEX2 and transcripts of telephone speech between German speakers, with a pronunciation dictionary bit.ly/4wiWZhP

CALLHOME German Second Edition brings original speech and transcript datasets up to date with new transcripts and revised directories, file formats and documentation bit.ly/4fdVzib

MADCAT Phases 1-3 Composite Evaluation Set: 1643 Arabic images w/ annotations derived from web text and newswire documents copied by hand, scanned, annotated and translated for automatic conversion of foreign language text images into English transcripts bit.ly/4dhqeJ3

LDC’s May newsletter announces three new publications: MADCAT Phases 1-3 Composite Evaluation Set, CALLHOME German Second Edition and CALLHOME German Lexicon Second Edition ldc-upenn.blogspot.com

More LDC data in the LORELEI series: LORELEI Somali Representative Language Pack features monolingual and parallel text, annotations, software tools and more for human language technology development to address emergent situations bit.ly/4cAwmNc

MATERIAL Tagalog-English Language Pack has 100 hours of Tagalog conversational telephone speech, transcripts, English translations, annotations and queries designed to support cross language information retrieval bit.ly/4tabfHI

DEFT Chinese and English Light and Rich ERE Parallel Annotation: 179 Chinese-English discussion forum documents annotated for entities, relations and events, including coreference (light) and event hoppers (rich), developed by LDC for the DARPA DEFT program bit.ly/4edPl1m

Check out our April newsletter for LDC’s latest publications – DEFT Chinese and English Light and Rich ERE Parallel Annotation, MATERIAL Tagalog-English Language Pack and LORELEI Somali Representative Language Pack ldc-upenn.blogspot.com

CALLHOME Spanish Lexicon Second Edition: morphological, phonological, stress & frequency info for 45,547 Spanish words from transcripts of telephone speech between Spanish speakers and Spanish news text, with a pronunciation dictionary & G2P tools bit.ly/4sEIrX0

CALLHOME Spanish Second Edition brings original speech and transcript datasets up to date with new transcripts and revised directories, file formats and documentation bit.ly/4dfSehI

Ancient Chinese WordNet contains 55,100 records of words from the Pre-Qin period (before 221 BCE) linked to a corresponding synset in Princeton WordNet 1.6, covering 22 noun categories, 15 verb categories, and additional adjective and adverb categories bit.ly/3NybVa2

LDC’s March newsletter features the release of three new publications – Ancient Chinese WordNet, CALLHOME Spanish Second Edition and CALLHOME Spanish Lexicon Second Edition ldc-upenn.blogspot.com

The 50th Penn Linguistics Conference (PLC) is Feb 28–Mar 1. PLC brings together students, faculty & researchers interested in languages & linguistics to share new work and connect with peers. We wish everyone a great and productive conference. @pennlinguistics.bsky.social tinyurl.com/verswp3z

More LDC data in the LORELEI series: LORELEI Russian Representative Language Pack features monolingual and parallel text, annotations, software tools and more for human language technology development to address emergent situations bit.ly/3MHDr4v

Happy International #MotherLanguageDay This year’s theme celebrates youth voices on multilingual education – emphasizing that language is central to identity, learning, well-being and participation in society. Let’s celebrate every language, every voice www.unesco.org/en/days/moth...

International Mother Language Day

21 February

unesco.org

KAIROS Schema Learning Background Source Data: 14K English & Spanish multimodal resources collected by LDC for a Schema Learning Corpus; schemas were used with event extraction to characterize & make predictions about real-world events in the corpus bit.ly/4tPVeYa

2022 NIST Language Recognition Evaluation Test and Development Sets: 222 hours of telephone speech and broadcast narrowband speech in 14 languages, plus turnkey evaluation documentation, emphasizing African languages and related English and French dialects bit.ly/4rIEJLs

Catch up on 2026 membership discounts, spring data scholarship awards and the release of three new publications in LDC’s February newsletter ldc-upenn.blogspot.com

MATERIAL Swahili-English Language Pack has 112 hours of Swahili conversational telephone speech, transcripts, English translations, annotations and queries designed to support cross language information retrieval bit.ly/49SWG3R

CALLHOME Japanese Lexicon Second Edition: morphological, phonological and stress information for 80,688 Japanese words from transcripts of telephone conversations between native Japanese speakers, along with a pronunciation dictionary and G2P tools bit.ly/3NlxvhC

CALLHOME Japanese Second Edition brings original speech and transcript datasets up to date with new transcripts and revised directories, file formats and documentation bit.ly/49kSdqz

LDC welcomes 2026 with its January newsletter featuring three publications and membership renewal information ldc-upenn.blogspot.com