James A Campbell
@rtbecard.bsky.social
(he/him) Former bird dude, current fish guy; currently based in Berlin. I'm into ecology, stats, bioacoustics, and artificial light.
Currently working as part of this ETN: https://www.msca-ribes.eu/
Currently working as part of this ETN: https://www.msca-ribes.eu/
I'm surprised R doesn't already have ternary operators... especially since they added anonymous functions somewhat recently.
Here's my prettier --- but probably an awful idea --- take on the user-implemented ternary operator.
Here's my prettier --- but probably an awful idea --- take on the user-implemented ternary operator.
February 3, 2026 at 4:07 PM
I'm surprised R doesn't already have ternary operators... especially since they added anonymous functions somewhat recently.
Here's my prettier --- but probably an awful idea --- take on the user-implemented ternary operator.
Here's my prettier --- but probably an awful idea --- take on the user-implemented ternary operator.
Also, this panel is titled "top 15 AI methods" and includes PCA, logistic regression, and nearest neighbours!?
I'm so confused...
I'm so confused...
January 28, 2026 at 11:24 AM
Also, this panel is titled "top 15 AI methods" and includes PCA, logistic regression, and nearest neighbours!?
I'm so confused...
I'm so confused...
They calculated the AI CO2 training cost by dividing by the number of monthly queries.
So the more total chatGPT queries, the "lower" the carbon foot print for AI writing. Pretty dumb metric in the context of climate change.
So the more total chatGPT queries, the "lower" the carbon foot print for AI writing. Pretty dumb metric in the context of climate change.
December 30, 2025 at 10:03 PM
They calculated the AI CO2 training cost by dividing by the number of monthly queries.
So the more total chatGPT queries, the "lower" the carbon foot print for AI writing. Pretty dumb metric in the context of climate change.
So the more total chatGPT queries, the "lower" the carbon foot print for AI writing. Pretty dumb metric in the context of climate change.
"...we occasionally have to mention specific concepts before properly introducing and/or defining them---we ask the reader to bear with us in these cases."
It's always a pleasure to read papers where the author explicitly empathizes with the reader.
It's always a pleasure to read papers where the author explicitly empathizes with the reader.
December 23, 2025 at 2:01 PM
"...we occasionally have to mention specific concepts before properly introducing and/or defining them---we ask the reader to bear with us in these cases."
It's always a pleasure to read papers where the author explicitly empathizes with the reader.
It's always a pleasure to read papers where the author explicitly empathizes with the reader.
For the underwater noise folk. Oceannoise2026 conferende dates. Once again in Barcelona (pretty happy about that).
2026.oceanoise.com
2026.oceanoise.com
December 22, 2025 at 4:18 PM
For the underwater noise folk. Oceannoise2026 conferende dates. Once again in Barcelona (pretty happy about that).
2026.oceanoise.com
2026.oceanoise.com
I've been patiently waiting for the right moment to try out the legal cannabis i grew over the summer... This is perfect👌
December 21, 2025 at 9:31 PM
I've been patiently waiting for the right moment to try out the legal cannabis i grew over the summer... This is perfect👌
Their AI toolset comes with an AI detector... And also an AI detector bypasser!? The intended use-case of this platform is pretty transparent.
December 21, 2025 at 2:38 PM
Their AI toolset comes with an AI detector... And also an AI detector bypasser!? The intended use-case of this platform is pretty transparent.
The Christmas season has officially started in Berlin. Tis the season.
November 30, 2025 at 1:04 PM
The Christmas season has officially started in Berlin. Tis the season.
Is anyone old enough to remember how videogame piracy protection worked in like 1994? On my Amiga, to play "Indiana jones", I had to open the instruction manual to the stated page and read off a code.
This is basically how the "new" 2-factor authentication works at Freie University (Berlin) now...
This is basically how the "new" 2-factor authentication works at Freie University (Berlin) now...
September 29, 2025 at 9:23 AM
Is anyone old enough to remember how videogame piracy protection worked in like 1994? On my Amiga, to play "Indiana jones", I had to open the instruction manual to the stated page and read off a code.
This is basically how the "new" 2-factor authentication works at Freie University (Berlin) now...
This is basically how the "new" 2-factor authentication works at Freie University (Berlin) now...
Has anyone heard of "The Egyptian Journal of Remote Sensing and Space Sciences"... reviewing job applications and this journal came up at least twice...
Is this a sketchy predatory journal? Or is it a legit remote sensing journal with a weirdly specific name?
#GIS
Is this a sketchy predatory journal? Or is it a legit remote sensing journal with a weirdly specific name?
#GIS
September 25, 2025 at 10:39 AM
Has anyone heard of "The Egyptian Journal of Remote Sensing and Space Sciences"... reviewing job applications and this journal came up at least twice...
Is this a sketchy predatory journal? Or is it a legit remote sensing journal with a weirdly specific name?
#GIS
Is this a sketchy predatory journal? Or is it a legit remote sensing journal with a weirdly specific name?
#GIS
Just discovered the subreddit r/AdamDriverCats
September 9, 2025 at 12:24 PM
Just discovered the subreddit r/AdamDriverCats
My google newsfeed was already like 90% grocery store tabloids... But now it's AI boosted grocery store tabloid trash 😮💨
August 25, 2025 at 3:27 PM
My google newsfeed was already like 90% grocery store tabloids... But now it's AI boosted grocery store tabloid trash 😮💨
Last Aquatic Noise conf. post...
Slide from John Potter's keynote.
Like 9/10 ppl see only squares in this image... But in cultures where they live in round huts surrounded by round livestock fences, most of them can only see circles.
Yes, I promise there are infact circles in this image...
Slide from John Potter's keynote.
Like 9/10 ppl see only squares in this image... But in cultures where they live in round huts surrounded by round livestock fences, most of them can only see circles.
Yes, I promise there are infact circles in this image...
July 4, 2025 at 8:22 PM
Last Aquatic Noise conf. post...
Slide from John Potter's keynote.
Like 9/10 ppl see only squares in this image... But in cultures where they live in round huts surrounded by round livestock fences, most of them can only see circles.
Yes, I promise there are infact circles in this image...
Slide from John Potter's keynote.
Like 9/10 ppl see only squares in this image... But in cultures where they live in round huts surrounded by round livestock fences, most of them can only see circles.
Yes, I promise there are infact circles in this image...
A depressing closing, aquatic noise conference (Prague). #bioacoustics #academiclife
Discussion on the confrnc's past funding from US agencies and how it's gone for the foreseeable future.
Next conf will need to signif cut costs and there are discussions on alternate funding models.
Discussion on the confrnc's past funding from US agencies and how it's gone for the foreseeable future.
Next conf will need to signif cut costs and there are discussions on alternate funding models.
July 4, 2025 at 7:15 PM
A depressing closing, aquatic noise conference (Prague). #bioacoustics #academiclife
Discussion on the confrnc's past funding from US agencies and how it's gone for the foreseeable future.
Next conf will need to signif cut costs and there are discussions on alternate funding models.
Discussion on the confrnc's past funding from US agencies and how it's gone for the foreseeable future.
Next conf will need to signif cut costs and there are discussions on alternate funding models.
Best poster at #AN2025. Tillman Spellauge used lasers to measure the resonance frequency of superficial sensory hair cells on snapping shrimp.
He showed the hairs are sensitive to sounds around 2kHz. This supports previous observations that they can hear *without* their statocysts (i.e. ears).
He showed the hairs are sensitive to sounds around 2kHz. This supports previous observations that they can hear *without* their statocysts (i.e. ears).
July 2, 2025 at 8:15 AM
Best poster at #AN2025. Tillman Spellauge used lasers to measure the resonance frequency of superficial sensory hair cells on snapping shrimp.
He showed the hairs are sensitive to sounds around 2kHz. This supports previous observations that they can hear *without* their statocysts (i.e. ears).
He showed the hairs are sensitive to sounds around 2kHz. This supports previous observations that they can hear *without* their statocysts (i.e. ears).
#AN2025 conference, Prague: William Wu just presented some underwater measures we made in the river Spree, Berlin. The spectrogram shows what a passing ubahn sounds like from the perspective of a fish in the Spree. #bioacoustics
(Repost as i wrote the wrong last name for William the first time...🤦)
(Repost as i wrote the wrong last name for William the first time...🤦)
June 30, 2025 at 10:21 PM
#AN2025 conference, Prague: William Wu just presented some underwater measures we made in the river Spree, Berlin. The spectrogram shows what a passing ubahn sounds like from the perspective of a fish in the Spree. #bioacoustics
(Repost as i wrote the wrong last name for William the first time...🤦)
(Repost as i wrote the wrong last name for William the first time...🤦)
(1/3) Johannes Baltzer (i believe?) presents the most beautiful example of modal dispersion i have ever seen.
A seimsic airgun recorded at a far distance. (See thread)
#bioacoustics #AN2025
A seimsic airgun recorded at a far distance. (See thread)
#bioacoustics #AN2025
June 30, 2025 at 10:16 PM
(1/3) Johannes Baltzer (i believe?) presents the most beautiful example of modal dispersion i have ever seen.
A seimsic airgun recorded at a far distance. (See thread)
#bioacoustics #AN2025
A seimsic airgun recorded at a far distance. (See thread)
#bioacoustics #AN2025
I know I'm out of touch from most of society with my hatred for all things AI...
...but if there is 1 place on the internet I expect to read/listen to human beings, it would be the fucking github documentation page for open source bioacoustic analysis software.
...but if there is 1 place on the internet I expect to read/listen to human beings, it would be the fucking github documentation page for open source bioacoustic analysis software.
June 24, 2025 at 10:45 PM
I know I'm out of touch from most of society with my hatred for all things AI...
...but if there is 1 place on the internet I expect to read/listen to human beings, it would be the fucking github documentation page for open source bioacoustic analysis software.
...but if there is 1 place on the internet I expect to read/listen to human beings, it would be the fucking github documentation page for open source bioacoustic analysis software.
If I wanted to reproduce this excellent figure (Bucker 1964) in my own paper, what would be the proper etiquette?
Can I just remake a high-res version, then mention in the caption its a remake of Bucker 1964, or are there more complex copy-right issues here?
Can I just remake a high-res version, then mention in the caption its a remake of Bucker 1964, or are there more complex copy-right issues here?
June 20, 2025 at 11:31 PM
If I wanted to reproduce this excellent figure (Bucker 1964) in my own paper, what would be the proper etiquette?
Can I just remake a high-res version, then mention in the caption its a remake of Bucker 1964, or are there more complex copy-right issues here?
Can I just remake a high-res version, then mention in the caption its a remake of Bucker 1964, or are there more complex copy-right issues here?
I want to give a shout-out to modern CSV. It reads and edits csv files... and *NOTHING* else.
This means no stupid errors in your csv files due to formatting you never asked for --- yes, you can go to straight to hell excel auto date formatting! #rstats #academiclife
www.moderncsv.com
This means no stupid errors in your csv files due to formatting you never asked for --- yes, you can go to straight to hell excel auto date formatting! #rstats #academiclife
www.moderncsv.com
June 18, 2025 at 1:13 PM
I want to give a shout-out to modern CSV. It reads and edits csv files... and *NOTHING* else.
This means no stupid errors in your csv files due to formatting you never asked for --- yes, you can go to straight to hell excel auto date formatting! #rstats #academiclife
www.moderncsv.com
This means no stupid errors in your csv files due to formatting you never asked for --- yes, you can go to straight to hell excel auto date formatting! #rstats #academiclife
www.moderncsv.com
New #FishSci #AcousticTelemetry positioning paper: PMC-TOA positioning.
I used adaptive importance sampling & mixture distributions to position fish in environments prone to tag reflections. Mixed with post-processing, this gives great tracks!
doi.org/10.1111/2041...
I used adaptive importance sampling & mixture distributions to position fish in environments prone to tag reflections. Mixed with post-processing, this gives great tracks!
doi.org/10.1111/2041...
March 17, 2025 at 10:23 PM
New #FishSci #AcousticTelemetry positioning paper: PMC-TOA positioning.
I used adaptive importance sampling & mixture distributions to position fish in environments prone to tag reflections. Mixed with post-processing, this gives great tracks!
doi.org/10.1111/2041...
I used adaptive importance sampling & mixture distributions to position fish in environments prone to tag reflections. Mixed with post-processing, this gives great tracks!
doi.org/10.1111/2041...
Just discovered r/aww. Amazing. www.reddit.com/r/aww/s/St3k...
March 16, 2025 at 11:32 PM
Just discovered r/aww. Amazing. www.reddit.com/r/aww/s/St3k...
On behalf of Canada, I'd like to apologize to all Dutch ppl...
I had no idea we culturally appropriated your beloved stroop waffles. In typical fashion, it seems like we just added maple syrup and called it Canadian (which honestly sounds like an upgrade).
I had no idea we culturally appropriated your beloved stroop waffles. In typical fashion, it seems like we just added maple syrup and called it Canadian (which honestly sounds like an upgrade).
March 12, 2025 at 9:09 PM
On behalf of Canada, I'd like to apologize to all Dutch ppl...
I had no idea we culturally appropriated your beloved stroop waffles. In typical fashion, it seems like we just added maple syrup and called it Canadian (which honestly sounds like an upgrade).
I had no idea we culturally appropriated your beloved stroop waffles. In typical fashion, it seems like we just added maple syrup and called it Canadian (which honestly sounds like an upgrade).
Very happy to read my institute newsletter this morning and see IGB Berlin [@leibnizigb.bsky.social] has stopped posting on twitter.
January 13, 2025 at 10:58 AM
Very happy to read my institute newsletter this morning and see IGB Berlin [@leibnizigb.bsky.social] has stopped posting on twitter.
Bavarian festive junk food i spotted in a small town grocery store. Pretzel shaped salami, with very... traditional male targeted advertising.
December 23, 2024 at 4:39 PM
Bavarian festive junk food i spotted in a small town grocery store. Pretzel shaped salami, with very... traditional male targeted advertising.