bennexx/WJTSentDiL

Summary

This dataset (WJTSentDiL, a corpus of Wikipedia, JpWaC and Tatoeba Sentences with Difficulty Level) contains Japanese sentences, obtained from various online sources and processed in a way to make them more fit as example sentences for L2 Japanese (Japanese as a second language) learners.

Data Fields

In the main_data configuration:

• sentence (str): a Japanese sentence.
• level (str): JLPT level of the sentence (attributed by a text classifier. Please keep in mind that the model has many limitations.)

In the tokenized_data configuration:

• sentence (str): a Japanese sentence.
• sentence_tokenized (list): list of the sentence's tokens as tokenized by ja_ginza.
• sentence_tokenized_lemma (list): same as above, but all tokens are lemmatized.

In the sentences_only configuration:

• sentence (str): a Japanese sentence.

In the sources.csv file:

• source: from this element's index and the next, sentences are found in source.

Sources

• Levels 0~4 of the Japanese Web as Corpus 1.0. jpWaC page
• Tatoeba sentences downloaded on 20/12/2023. Tatoeba Project
• Wikipedia dump downloaded on 01/12/2023. jawiki-20231201-pages-articles-multistream.xml.bz2

Dataset construction

Processing filters:

• Entries with multiple sentences have been expanded
• Removal of duplicates
• No more than 20% punctuation
• No more than 20% numbers Additionally, processing applied only to Wikipedia sentences:
• No Latin/Russian/Arabic characters
• End in punctuation, and the last word is an adjective, verb, or auxilliary

Some Stats

• 97% of sentences are from Japanese Wikipedia
• The average sentence length is 26 tokens
• The average Kanji ratio is 37%

Licenses

The same licenses as the original works apply.

Cite

@inproceedings{benedetti-etal-2024-automatically,
    title = "Automatically Suggesting Diverse Example Sentences for {L}2 {J}apanese Learners Using Pre-Trained Language Models",
    author = "Benedetti, Enrico  and
      Aizawa, Akiko  and
      Boudin, Florian",
    editor = "Fu, Xiyan  and
      Fleisig, Eve",
    booktitle = "Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 4: Student Research Workshop)",
    month = aug,
    year = "2024",
    address = "Bangkok, Thailand",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2024.acl-srw.55/",
    pages = "517--534",
    ISBN = "979-8-89176-097-4"
}