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JPO Patent Corpus

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INTRODUCTION

JPO Patent Corpus was constructed by the Japan Patent Office (JPO). This corpus consists of a Chinese-Japanese, Korean-Japanese, and English-Japanese patent description corpus of 1M parallel sentences with four sections, which are Chemistry (Ch), Electricity (El), Mechanical engineering (Me), and Physics (Ph), based on International Patent Classification (IPC).

DETAIL

Datasets for Translation Tasks

These tasks evaluate performance of a translation model for each language pair. Differing from the previous patent tasks at WAT2016-2017, new test sets are added as follows:

Corpus statistics:

Language Pair Data Type File Name Size Sections:Ratios Published Years Sentence Alignment
ZH<-->JA TRAIN train.{zh,ja} 250,000 Ch/El/Me/Ph:25%/25%/25%/25% 2011-2013 Automatic
DEV dev.{zh,ja} 2,000
DEVTEST devtest.{zh,ja} 2,000
TEST test-n1.{zh,ja} 2,000
TEST test-n2.{zh,ja} 3,000 Ch/El/Me/Ph:Unknown 2016-2017 Manual
TEST test-n3.{zh,ja} 204
TEST test-n.{zh,ja} 5,204 2011-2013, 2016-2017 Automatic/Manual
KO<-->JA TRAIN train.{ko,ja} 250,000 Ch/El/Me/Ph:25%/25%/25%/25% 2011-2013 Automatic
DEV dev.{ko,ja} 2,000
DEVTEST devtest.{ko,ja} 2,000
TEST test-n1.{ko,ja} 2,000
TEST test-n2.{ko,ja} 3,000 Ch/El/Me/Ph:Unknown 2016-2017 Manual
TEST test-n3.{ko,ja} 230
TEST test-n.{ko,ja} 5,230 2011-2013, 2016-2017 Automatic/Manual
EN<-->JA TRAIN train.{en,ja} 250,000 Ch/El/Me/Ph:25%/25%/25%/25% 2011-2013 Automatic
DEV dev.{en,ja} 2,000
DEVTEST devtest.{en,ja} 2,000
TEST test-n1.{en,ja} 2,000
TEST test-n2.{en,ja} 3,000 Ch/El/Me/Ph:Unknown 2016-2017 Manual
TEST test-n3.{en,ja} 668
TEST test-n.{en,ja} 5,668 2011-2013, 2016-2017 Automatic/Manual

HOW TO OBTAIN

  1. Complete the license agreement (English/Japanese). (Neither stamp nor signature is essential.)
  2. Email the agreement to the Japan Patent Office (PA0630 -at- jpo.go.jp).
  3. WAT organizers/JPO staffs will email to notify the applicant of a link to download this corpus, once the JPO receives the original of the agreement and approves the application.
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CONTACT

For questions, comments, etc. please email to "wat-organizer -at- googlegroups -dot- com".

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CHANGE LOG

2021-01-06: site opened


NICT (National Institute of Information and Communications Technology)
Kyoto University
Last Modified: 2021-01-06