Yukihiro Matsumoto
E51015
Yukihiro Matsumoto is a Japanese software engineer best known as the creator of the Ruby programming language and a prominent figure in the free software community.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Yukihiro Matsumoto canonical | 13 |
How this entity was disambiguated
This entity first appeared as the object of triple T400587 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Yukihiro Matsumoto Context triple: [Award for the Advancement of Free Software, notableRecipient, Yukihiro Matsumoto]
-
A.
Yoshio Itoi
Yoshio Itoi is a Japanese professional baseball outfielder known for his speed, strong throwing arm, and multiple All-Star selections in Nippon Professional Baseball.
-
B.
Ward Cunningham
Ward Cunningham is an American computer programmer best known for creating the first wiki and contributing significantly to agile software development practices.
-
C.
Guido van Rossum
Guido van Rossum is a Dutch programmer best known as the creator of the Python programming language.
-
D.
Masayoshi Ōhira
Masayoshi Ōhira was a Japanese politician who served as Prime Minister of Japan from 1978 until his death in 1980.
-
E.
Satoshi Nakajima
Satoshi Nakajima is a Japanese professional baseball manager and former catcher best known for leading the Orix Buffaloes to multiple Pacific League titles and a Japan Series championship.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Yukihiro Matsumoto Target entity description: Yukihiro Matsumoto is a Japanese software engineer best known as the creator of the Ruby programming language and a prominent figure in the free software community.
-
A.
Yoshio Itoi
Yoshio Itoi is a Japanese professional baseball outfielder known for his speed, strong throwing arm, and multiple All-Star selections in Nippon Professional Baseball.
-
B.
Ward Cunningham
Ward Cunningham is an American computer programmer best known for creating the first wiki and contributing significantly to agile software development practices.
-
C.
Guido van Rossum
Guido van Rossum is a Dutch programmer best known as the creator of the Python programming language.
-
D.
Masayoshi Ōhira
Masayoshi Ōhira was a Japanese politician who served as Prime Minister of Japan from 1978 until his death in 1980.
-
E.
Satoshi Nakajima
Satoshi Nakajima is a Japanese professional baseball manager and former catcher best known for leading the Orix Buffaloes to multiple Pacific League titles and a Japan Series championship.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
computer programmer
ⓘ
free software advocate ⓘ person ⓘ software engineer ⓘ |
| advocates |
free software
ⓘ
open source development model ⓘ |
| alsoKnownAs | Matz ⓘ |
| birthDate | 1965-04-14 ⓘ |
| birthPlace |
Osaka Prefecture
ⓘ
surface form:
Osaka Prefecture, Japan
|
| citizenship | Japan ⓘ |
| communityRole | leader of the global Ruby community ⓘ |
| created |
Ruby
ⓘ
surface form:
Ruby programming language
|
| designed |
Ruby
ⓘ
surface form:
Ruby programming language
|
| employer |
Heroku
ⓘ
Network Applied Communication Laboratory ⓘ |
| field |
computer programming
ⓘ
programming language design ⓘ software engineering ⓘ |
| gender | male ⓘ |
| hasChild | four children ⓘ |
| influenced |
Ruby community
ⓘ
Ruby on Rails ⓘ
surface form:
Ruby on Rails ecosystem
|
| influencedBy |
Ada (programming language)
ⓘ
surface form:
Ada
Eiffel ⓘ Lisp programming language ⓘ
surface form:
Lisp
Perl ⓘ Smalltalk ⓘ |
| knownFor |
advocacy of open source software
ⓘ
creating the Ruby programming language ⓘ designing the Ruby programming language ⓘ leadership in the Ruby community ⓘ |
| language |
English
ⓘ
Japanese ⓘ |
| memberOf | Ruby Association ⓘ |
| name | Yukihiro Matsumoto self-link ⓘ |
| nationality | Japanese ⓘ |
| nativeName | まつもとゆきひろ ⓘ |
| notableIdea | Ruby’s principle of programmer happiness ⓘ |
| notableWork |
Ruby
ⓘ
surface form:
Ruby programming language
|
| occupation |
open source software developer
ⓘ
programming language designer ⓘ software engineer ⓘ |
| position | Chief Architect of Ruby at Heroku ⓘ |
| programmingLanguage | Ruby ⓘ |
| religion | Christianity ⓘ |
| residence | Matsue, Shimane Prefecture, Japan ⓘ |
| role | Chief Architect of Ruby Association ⓘ |
| speaksAt | Ruby conferences worldwide ⓘ |
| startedProject |
Ruby
ⓘ
surface form:
Ruby programming language
|
| website | https://www.rubyist.net/~matz/ ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Yukihiro Matsumoto Description of subject: Yukihiro Matsumoto is a Japanese software engineer best known as the creator of the Ruby programming language and a prominent figure in the free software community.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Ruby programming language