apache / jena-site - Contributors

Zoomable circles (number of contributors per file): 30 days | 90 days | 6 months | past year | all time

Files with only one contributor are shown as grey.

Contributors

Recent Contributors (6)

Committed in past 6 months (a rookie = the first commit in past year)

Past 30 days (4):

andy@apache.org

rvesse@apache.org

rvesse@dotnetrdf.org

vladimir.alexiev@ontotext.com

Past 31 to 90 days (1):

rob.vesse@telicent.io

Past 91 to 180 days (1):

ravenarkadon@googlemail.com

Historical Contributors (69)

Last contributors more than 6 months ago

ijd@apache.org

kinow@users.noreply.github.com

kinow@apache.org

castagna@apache.org

claude@apache.org

ajs6f@apache.org

jpz6311whu@apache.org

andy@seaborne.org

erich@ebremer.com

codeferret@apache.org

sallen@apache.org

oyvind.gjesdal@uib.no

4662258+galbiston@users.noreply.github.com

sss.zuev@gmail.com

lenferinkroy@gmail.com

osma@apache.org

jan-martin.keil@uni-jena.de

claude@xenei.com

simonbin@users.noreply.github.com

jiezhi@users.noreply.github.com

ryanshaw@unc.edu

71407287+furkanakkurt1335@users.noreply.github.com

elie.roux@telecom-bretagne.eu

ryan.stokes@collectivemedicaltech.com

42928670+den1s0v@users.noreply.github.com

robert.vesse@hpe.com

bob@bobdc.com

szeleung.poon@gmail.com

oyvind@localhost.localdomain

chris.j.tomlinson@gmail.com

mgillis@gmail.com

damian@apache.org

158044573+karolina-telicent@users.noreply.github.com

damien@veezoo.com

josh@openmicroscopy.org

lorenzolespaul@gmail.com

googleit@inuits.eu

30931139+dymil@users.noreply.github.com

acoburn@apache.org

ts+code@rcmd.org

micahcochran@users.noreply.github.com

voss@gbv.de

captsolo@gmail.com

ostrzycielnozyczek@gmail.com

justin2004@hotmail.com

ieugne@apache.org

eric+github@w3.org

arnout@bzzt.net

fnaumann@posteo.de

chamathpali123@gmail.com

nick@kurrawong.net

karl.guggisberg@guggis.ch

florian.kleedorfer@austria.fm

andrew@berezovskyi.me

sh.yaron@gmail.com

piegsa@gmail.com

michi@wyona.com

oyvind.gjesdal@ub.uib.no

stain@apache.org

janothan@users.noreply.github.com

shk3@users.noreply.github.com

sinacek@gmail.com

buehmann@informatik.uni-leipzig.de

langston.barrett@gmail.com

63252616+crookstonmet@users.noreply.github.com

egon.willighagen@gmail.com

thadguidry@gmail.com

lbuehmann@apache.org

joes@apache.org

Contributors Matrix (Per Month)

	Commits (3m)	Commit Days	-	4	1	2	1	-	2	1	1	3	2	2	1	1	6	1	2	1	2	5	-	2	2	1	-
andy@apache.org	4	438	-			-		-			-				-				-	-	-		-			-	-
rvesse@apache.org	2	84	-		-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-		-	-	-	-	-
rvesse@dotnetrdf.org	2	3	-		-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
vladimir.alexiev@ontotext.com	1	1	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
rob.vesse@telicent.io	2	8	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ravenarkadon@googlemail.com	-	6	-	-	-	-	-	-		-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-
sss.zuev@gmail.com	-	5	-	-	-	-	-	-	-	-			-	-		-	-	-	-	-	-	-	-	-	-	-	-
oyvind.gjesdal@uib.no	-	5	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
158044573+karolina-telicent@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-
damien@veezoo.com	-	1	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-
kinow@users.noreply.github.com	-	30	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-		-	-	-	-		-
jan-martin.keil@uni-jena.de	-	3	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-
ryanshaw@unc.edu	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-		-	-
josh@openmicroscopy.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-
lorenzolespaul@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-
googleit@inuits.eu	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-
claude@xenei.com	-	3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-
acoburn@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-
ts+code@rcmd.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-
micahcochran@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-
30931139+dymil@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-
voss@gbv.de	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
simonbin@users.noreply.github.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
erich@ebremer.com	-	4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
captsolo@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
71407287+furkanakkurt1335@users.noreply.github.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ostrzycielnozyczek@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
justin2004@hotmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
arnout@bzzt.net	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
fnaumann@posteo.de	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
chamathpali123@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
eric+github@w3.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
elie.roux@telecom-bretagne.eu	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
nick@kurrawong.net	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ieugne@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
karl.guggisberg@guggis.ch	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
florian.kleedorfer@austria.fm	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
andrew@berezovskyi.me	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
sh.yaron@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
piegsa@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
4662258+galbiston@users.noreply.github.com	-	5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ryan.stokes@collectivemedicaltech.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
42928670+den1s0v@users.noreply.github.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
robert.vesse@hpe.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
michi@wyona.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
oyvind.gjesdal@ub.uib.no	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
stain@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
bob@bobdc.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
szeleung.poon@gmail.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
oyvind@localhost.localdomain	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ajs6f@apache.org	-	30	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
janothan@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
shk3@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
jiezhi@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
sinacek@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
buehmann@informatik.uni-leipzig.de	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
langston.barrett@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
63252616+crookstonmet@users.noreply.github.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
lenferinkroy@gmail.com	-	4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
chris.j.tomlinson@gmail.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
andy@seaborne.org	-	8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
egon.willighagen@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
mgillis@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
thadguidry@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
claude@apache.org	-	18	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
codeferret@apache.org	-	5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
kinow@apache.org	-	25	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
lbuehmann@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
osma@apache.org	-	4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
jpz6311whu@apache.org	-	9	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
sallen@apache.org	-	7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ijd@apache.org	-	54	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
castagna@apache.org	-	12	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
damian@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
joes@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Bots Matrix (Per Month)

Commits
(3m)

Commit
Days

-

4 contributors (7 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	File Updates (per extension)
1.	andy@apache.org	2011-11-21	2025-04-27	3 (42%)	md (1), (1), yaml (1)
2.	rvesse@apache.org	2012-03-07	2025-04-17	2 (28%)	md (2)
3.	rvesse@dotnetrdf.org	2021-06-21	2025-04-17	1 (14%)	md (1)
4.	vladimir.alexiev@ontotext.com	2025-04-16	2025-04-16	1 (14%)	md (1)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 30 days.

Contributor Dependencies via Shared Files

- show contributor dependencies 2D graph
- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	rvesse@apache.org	rvesse@dotnetrdf.org	1 shared file
2.	rvesse@apache.org	vladimir.alexiev@ontotext.com	1 shared file
3.	rvesse@dotnetrdf.org	vladimir.alexiev@ontotext.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	rvesse@apache.org	2	2
2.	rvesse@dotnetrdf.org	2	1
3.	vladimir.alexiev@ontotext.com	2	1
4.	andy@apache.org	0	3

C-median: 2.0

A half of the contributors has more than 2.0 connections, and a half has less than this number.

C-mean: 2.0

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

5 contributors (11 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	File Updates (per extension)
1.	andy@apache.org	2011-11-21	2025-04-27	4 (36%)	pdf (3), md (2), (1), yaml (1), html (1)
2.	rvesse@apache.org	2012-03-07	2025-04-17	2 (18%)	md (2)
3.	rob.vesse@telicent.io	2022-02-23	2025-02-11	2 (18%)	md (2)
4.	rvesse@dotnetrdf.org	2021-06-21	2025-04-17	2 (18%)	md (2)
5.	vladimir.alexiev@ontotext.com	2025-04-16	2025-04-16	1 (9%)	md (1)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 90 days.

Contributor Dependencies via Shared Files

- show contributor dependencies 2D graph
- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	rvesse@dotnetrdf.org	rob.vesse@telicent.io	1 shared file source/documentation/tdb/faqs.md
2.	rvesse@apache.org	rvesse@dotnetrdf.org	1 shared file
3.	rvesse@apache.org	vladimir.alexiev@ontotext.com	1 shared file
4.	rvesse@dotnetrdf.org	vladimir.alexiev@ontotext.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	rvesse@dotnetrdf.org	3	2
2.	rvesse@apache.org	2	2
3.	vladimir.alexiev@ontotext.com	2	1
4.	rob.vesse@telicent.io	1	2
5.	andy@apache.org	0	4

C-median: 2.0

A half of the contributors has more than 2.0 connections, and a half has less than this number.

C-mean: 2.0

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

6 contributors (17 commits):

#	Contributor	First Commit	Latest Commit	Commits Count
1.	andy@apache.org	2011-11-21	2025-04-27	9 (52%)
2.	rvesse@apache.org	2012-03-07	2025-04-17	2 (11%)
3.	rob.vesse@telicent.io	2022-02-23	2025-02-11	2 (11%)
4.	rvesse@dotnetrdf.org	2021-06-21	2025-04-17	2 (11%)
5.	ravenarkadon@googlemail.com	2022-04-28	2024-11-23	1 (5%)
6.	vladimir.alexiev@ontotext.com	2025-04-16	2025-04-16	1 (5%)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 180 days.

Contributor Dependencies via Shared Files

- show contributor dependencies 2D graph
- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	rvesse@dotnetrdf.org	rob.vesse@telicent.io	1 shared file source/documentation/tdb/faqs.md
2.	ravenarkadon@googlemail.com	andy@apache.org	1 shared file
3.	rvesse@apache.org	rvesse@dotnetrdf.org	1 shared file
4.	rvesse@apache.org	vladimir.alexiev@ontotext.com	1 shared file
5.	rvesse@dotnetrdf.org	vladimir.alexiev@ontotext.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	rvesse@dotnetrdf.org	3	2
2.	rvesse@apache.org	2	2
3.	vladimir.alexiev@ontotext.com	2	1
4.	andy@apache.org	1	9
5.	rob.vesse@telicent.io	1	2
6.	ravenarkadon@googlemail.com	1	1

C-median: 1.5

A half of the contributors has more than 1.5 connections, and a half has less than this number.

C-mean: 1.6

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

10 contributors (38 commits):

#	Contributor	First Commit	Latest Commit	Commits Count
1.	andy@apache.org	2011-11-21	2025-04-27	23 (60%)
2.	rvesse@apache.org	2012-03-07	2025-04-17	2 (5%)
3.	rob.vesse@telicent.io	2022-02-23	2025-02-11	2 (5%)
4.	rvesse@dotnetrdf.org	2021-06-21	2025-04-17	2 (5%)
5.	ravenarkadon@googlemail.com	2022-04-28	2024-11-23	1 (2%)
6.	oyvind.gjesdal@uib.no	2022-07-16	2024-08-10	1 (2%)
7.	sss.zuev@gmail.com	2022-09-28	2024-09-01	4 (10%)
8.	vladimir.alexiev@ontotext.com	2025-04-16	2025-04-16	1 (2%)
9.	158044573+karolina-telicent@users.noreply.github.com	2024-07-17	2024-07-17	1 (2%)
10.	damien@veezoo.com	2024-06-17	2024-06-17	1 (2%)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 365 days.

Contributor Dependencies via Shared Files

- show contributor dependencies 2D graph
- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	andy@apache.org	sss.zuev@gmail.com	2 shared files
2.	ravenarkadon@googlemail.com	andy@apache.org	1 shared file
3.	rvesse@dotnetrdf.org	rob.vesse@telicent.io	1 shared file source/documentation/tdb/faqs.md
4.	rvesse@apache.org	rvesse@dotnetrdf.org	1 shared file
5.	rvesse@apache.org	vladimir.alexiev@ontotext.com	1 shared file
6.	rvesse@dotnetrdf.org	vladimir.alexiev@ontotext.com	1 shared file
7.	andy@apache.org	158044573+karolina-telicent@users.noreply.github.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	andy@apache.org	3	23
2.	rvesse@dotnetrdf.org	3	2
3.	rvesse@apache.org	2	2
4.	vladimir.alexiev@ontotext.com	2	1
5.	sss.zuev@gmail.com	1	4
6.	rob.vesse@telicent.io	1	2
7.	ravenarkadon@googlemail.com	1	1
8.	158044573+karolina-telicent@users.noreply.github.com	1	1
9.	oyvind.gjesdal@uib.no	0	1
10.	damien@veezoo.com	0	1

C-median: 1.5

A half of the contributors has more than 1.5 connections, and a half has less than this number.

C-mean: 1.7

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

Contributors' details...