CALLHOME Japanese Lexicon Second Edition
| Item Name: | CALLHOME Japanese Lexicon Second Edition |
| Author(s): | Megumi Kobayashi, Sean Crist, Masayo Kaneko, Cynthia McLemore, Neville Ryant, Danni Ma |
| LDC Catalog No.: | LDC2026L01 |
| ISLRN: | 515-815-414-252-1 |
| DOI: | https://doi.org/10.35111/8hnm-b946 |
| Release Date: | January 15, 2026 |
| Member Year(s): | 2026 |
| DCMI Type(s): | Software, Text |
| Data Source(s): | telephone conversations |
| Project(s): | Hub5-LVCSR |
| Application(s): | language documentation, natural language processing, parsing, phonology, speech recognition |
| Language(s): | Japanese |
| Language ID(s): | jpn |
| License(s): |
CALLHOME Lexicon Agreement (Commercial) CALLHOME Lexicon Agreement (Non-Commercial) CALLHOME Lexicon Agreement (Non-Member) |
| Online Documentation: | LDC2026L01 Documents |
| Licensing Instructions: | Subscription & Standard Members, and Non-Members |
| Citation: | Kobayashi, Megumi, et al. CALLHOME Japanese Lexicon Second Edition LDC2026L01. Web Download. Philadelphia: Linguistic Data Consortium, 2026. |
| Related Works: | View |
Introduction
CALLHOME Japanese Lexicon Second Edition was developed by the Linguistic Data Consortium (LDC) and contains 80,688 Japanese words with morphological, phonological and stress information. This second edition updates file formats, directory structure and documentation. The first edition is available as CALLHOME Japanese Lexicon (LDC96L17).
The CALLHOME series consists of telephone conversations, transcripts and lexicons developed by LDC and Rutgers, The State University of New Jersey, in support of research in speaker identification, language identification and related technologies. Languages in the series include American English, Egyptian Arabic, German, Japanese, Mandarin Chinese, and Spanish.
Data
The words in the lexicon were derived from 80 transcripts representing unscripted telephone conversations between native Japanese speakers contained in CALLHOME Japanese Second Edition (LDC2026S02).
The lexicon contains seven tab-separated information fields: (1) headword: orthographic form in kanji or katakana or hiragana (if only written in hiragana); (2) hiragana: orthographic form in hiragana; (3) romanization: orthographic form in romaji; (4) pron: pronunciation of the headword; (5) morph: morphological analysis of the headword; (6) train freq: frequency of the headword in the transcripts; and (7) gloss: glosses of the headword.
The lexicon is presented as a tab-delimited TSV file encoded in UTF-8 format. This release also includes a pronunciation dictionary derived from the lexicon in UTF-8 encoded CMUdict format and the grapheme-to-phoneme (G2P) tools used to automatically generate pronunciations for the original lexicon.
Samples
Please view these samples:
Updates
No updates at this time.