John Martinsson
@johnmartinsson.org
1.6K followers 970 following 27 posts
I study machine listening methods for bioacoustics and automated sensing of natural environments. And I enjoy natural environments. https://johnmartinsson.org/ Core member of Climate AI Nordics | ML researcher at RISE
Posts Media Videos Starter Packs
Pinned
johnmartinsson.org
🌿 Hi everyone! I'm John Martinsson, a PhD student exploring machine listening for bioacoustics. I work on using machine learning to analyze sounds from nature—think bird songs, frog calls, and more—to monitor ecosystems and the impact of human activities.
Reposted by John Martinsson
signal.org
We are alarmed by reports that Germany is on the verge of a catastrophic about-face, reversing its longstanding and principled opposition to the EU’s Chat Control proposal which, if passed, could spell the end of the right to privacy in Europe. signal.org/blog/pdfs/ge...
signal.org
Reposted by John Martinsson
climateainordics.com
🌍 Excited to announce our Workshop on AI for Climate & Conservation (AICC) at #EurIPS2025 in Copenhagen! 🎉

📢 Call for Participation: sites.google.com/g.harvard.ed...

Confirmed speakers from Mistral AI, DeepMind, ETH Zurich, LSCE & more.

Looking forward to meeting and discussing in Copenhagen!
johnmartinsson.org
Our paper, “The Accuracy Cost of Weakness: A Theoretical Analysis of Fixed-Segment Weak Labeling for Events in Time”, is now out in TMLR!

It explores tradeoffs in weak labeling for sound events and gives a theoretical basis for adaptive approaches.

📄 Read: johnmartinsson.org/publications...
The Accuracy Cost of Weakness: A Theoretical Analysis of Fixed-Segment Weak Labeling for Events in Time
This paper analyzes the accuracy and cost of fixed-length segment weak labeling for events in time, comparing it to an oracle method and providing justification for adaptive weak labeling strategies.
johnmartinsson.org
Reposted by John Martinsson
oisinmacaodha.bsky.social
Working at the intersection of AI and Climate/Conservation?

If so, check out our upcoming workshop which will taking place at #EurIPS in Copenhagen in December 2025.
sites.google.com/g.harvard.ed...

@euripsconf.bsky.social
climateainordics.com
🌍 Excited to announce our Workshop on AI for Climate & Conservation (AICC) at #EurIPS2025 in Copenhagen! 🎉

📢 Call for Participation: sites.google.com/g.harvard.ed...

Confirmed speakers from Mistral AI, DeepMind, ETH Zurich, LSCE & more.

Looking forward to meeting and discussing in Copenhagen!
Reposted by John Martinsson
danstowell.mastodon.social.ap.brid.gy
I'm happy to announce two excellent keynote speakers for BioDCASE 2025! AND registration is open too! All the details are here: https://biodcase.github.io/workshop2025/ #biodcase #DCASE #bioacoustics #pam
Logo: BioDCASE workshop, 8th October, Barcelona
johnmartinsson.org
Very exited about this! To start with we are looking to find and label some of their vocalizations to build a vocabulary, and to link them to video events.

Many very interesting audio-visual modelling challenges! I would like to build an audio-visual vocabulary to help understand their behaviour.
johnmartinsson.org
Sounds great! If you have a link to the PhD please send it. I'd be happy to have a look :)
johnmartinsson.org
Happy to! Are you studying auk acoustics as part of your post-doc, or what is your relationship to these birds? :)
Reposted by John Martinsson
annamariamesaros.bsky.social
The DCASE 2025 Challenge enters the evaluation phase. Two weeks to the deadline!
johnmartinsson.org
The webpage is under development. Hopfully the playable Guillemot icons will have diffetent sounds soon that we collect during the season.
johnmartinsson.org
Small webpage for an ongoing #bioacoustic monitoring project I am part of at Stora Karlsö: auklab-audio.github.io

Adding #audio will hopefully let us learn more about the life of the Guillemots. What are they saying?

Lesson learned: designing a recording setup is a challenge and lots of fun! 🔊
Auklab Audio Research
News and updates about the continuous acoustic monitoring at the Auk Lab
auklab-audio.github.io
Reposted by John Martinsson
climateainordics.com
Big thanks to all speakers and participants who joined the first Nordic Workshop on AI for Climate Change in Gothenburg, a great success! 🌍💡

Next year’s workshop is already set: June 26, 2026 in Copenhagen 🇩🇰, hosted by our core team at KU & the Pioneer Centre for AI.

Let's keep up the momentum! ⚡️
Reposted by John Martinsson
marinemammalsau.bsky.social
Noise pollution isn’t just an inconvenience! 🔉🐬
it can disturb entire marine ecosystems.

Understanding how noise disturbance affects wildlife populations requires powerful models, lots of data and a dedicated team.

See the thread for what is going on in AU Ecoscience #marinemammalresearch 🌊
johnmartinsson.org
Read more about the already established monitoring setup here: www.balticseabird.com/auklab/, thanks Jonas Hentati Sundberg for making this happen!
AukLab – BSP
www.balticseabird.com
johnmartinsson.org
For years I've had a long-term personal goal to have a project in my work that requires me to do fieldwork. Early this year I achieved that goal. And this weekend I will go to Stora Karlsö and install microphones in a Guillemot colony with my collegues @mogren.ml @delialia.bsky.social. 🐧
Reposted by John Martinsson
danstowell.bsky.social
Just launched: the BioDCASE challenge! Monitor whales, birds and other animals, through their sounds? We're publishing new datasets, and new evaluations, to help you do so! Please join this new challenge, and please spread the word: biodcase.github.io #bioacoustics #machinelistening #ai4good
Logo: BioDCASE. Challenge launched! We like birds, whales, forests, and data
Reposted by John Martinsson
climateainordics.com
Climate AI Nordics hits 140 members! 🎉 Using AI for climate resilience. Join our 🇩🇰🇫🇮🇳🇴🇸🇪 network, especially if you're in Iceland 🇮🇸, Faroe Island 🇫🇴, Greenland 🇬🇱 or Åland 🇦🇽! Let's build solutions. Sign up: climateainordics.com/join/ #ClimateAI
Reposted by John Martinsson
scurry.bsky.social
I will close the letter for signatures at 17:00 today (UK time). Last chance to voice your support before this evening's meeting of the Royal Society.
johnmartinsson.org
Part of micing up a Guillemot colony in the Baltic Sea (www.balticseabird.com/auklab/).

Switches with ethernet and power within 5 meters of all mics. Dynamic range important.

Any tips on hardware (e.g multi channel ADC rack and mics, IP audio) and things to consider are welcome! #bioacoustics
AukLab – BSP
www.balticseabird.com
johnmartinsson.org
Happy to be part of the core team for Climate AI Nordics!
climateainordics.com
Announcing Climate AI Nordics core team:

@mogren.ml,
@aleksispi.bsky.social
🇸🇪 Francesca Larosa, KTH
🇩🇰 @ankitky.bsky.social
🇳🇴 @stefanopuliti.bsky.social
🇫🇮 Hilda Sandström, Aalto University
🇸🇪 @johnmartinsson.org
🇳🇴 Sigrid P. Hellan, NORCE / @bjerknes.bsky.social

climateainordics.com/about/
Reposted by John Martinsson
climateainordics.com
Advancing biodiversity monitoring is crucial for meeting the EU Biodiversity Strategy targets and addressing gaps in current ecological assessments. However, collecting data to monitor the state of biodiversity is time and resource con...

##ccai >>Read more!<<
johnmartinsson.org
Thank you for writing this book. I study machine listening methods for bioacoustics. Books like this help me understand the variety of animal sounds, which lead to development of more useful methods. And reading about sound and animals is always enjoyable. Look forward to reading it!
Reposted by John Martinsson
climateainordics.com
Newsletter: Welcome to the Climate Change AI Nordics Newsletter, December 2024! Read about recent and coming seminars, workshops, and the modelling of thermal inequalities in African cities.

##ccai >>Read more!<<