John Martinsson
@johnmartinsson.org
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
https://johnmartinsson.org/
Core member of Climate AI Nordics | ML researcher at RISE
Pinned
John Martinsson
@johnmartinsson.org
· Nov 28
🌿 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
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
October 3, 2025 at 4:14 PM
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...
Reposted by John Martinsson
BioDCASE workshop - registration closes next week Oct 10th https://biodcase.github.io/workshop2025/ - Hope to see you there! #bioacoustics
BioDCASE Workshop - BioDCASE
Join us for the BioDCASE Workshop held in Barcelona, Spain on the 29th of October! The workshop will be held at the Campus del Poblenou of Universitat Pompeu Fabra. The BioDCASE workshop will be hosted the day before the DCASE workshop on the 30-31st of October at the same venue …
biodcase.github.io
October 3, 2025 at 10:17 AM
BioDCASE workshop - registration closes next week Oct 10th https://biodcase.github.io/workshop2025/ - Hope to see you there! #bioacoustics
Reposted by John Martinsson
🌍 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!
📢 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!
September 19, 2025 at 10:37 AM
🌍 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!
📢 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!
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...
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
September 29, 2025 at 12:05 PM
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...
It explores tradeoffs in weak labeling for sound events and gives a theoretical basis for adaptive approaches.
📄 Read: johnmartinsson.org/publications...
Reposted by John Martinsson
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
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
🌍 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!
📢 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!
September 19, 2025 at 12:59 PM
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
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
Reposted by John Martinsson
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
July 10, 2025 at 10:12 AM
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
Reposted by John Martinsson
The DCASE 2025 Challenge enters the evaluation phase. Two weeks to the deadline!
DCASE evaluation phase is now open! You have until June 15th 23:59 AoE to submit your systems!
dcase.community/challenge2025/
dcase.community/challenge2025/
DCASE2025 Challenge - DCASE
Challenge status Task Task description Development dataset...
dcase.community
June 2, 2025 at 4:23 PM
The DCASE 2025 Challenge enters the evaluation phase. Two weeks to the deadline!
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! 🔊
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
June 10, 2025 at 5:49 PM
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! 🔊
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! 🔊
Reposted by John Martinsson
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! ⚡️
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! ⚡️
May 15, 2025 at 5:35 AM
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! ⚡️
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
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 🌊
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 🌊
April 29, 2025 at 3:00 PM
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 🌊
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 🌊
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. 🐧
April 24, 2025 at 6:42 AM
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
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
April 2, 2025 at 4:30 PM
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
Reposted by John Martinsson
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
April 2, 2025 at 11:50 AM
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
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.
There are now over 3000 signatories to my letter asking the Royal Society to explain why it has taken no action and said nothing about evident contraventions of its code of conduct by Elon Musk FRS.
forms.gle/dBGaHk7SYUNA...
forms.gle/dBGaHk7SYUNA...
Open letter to the President of the Royal Society – time to stand up for your values
If you wish to show your support for the letter below regarding apparent inaction by the Royal Society in the face of breaches of its code of conduct by Elon Musk FRS, please sign below. I invite anyo...
forms.gle
March 3, 2025 at 12:24 PM
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.
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
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
February 14, 2025 at 7:00 PM
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
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
Happy to be part of the core team for Climate AI Nordics!
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/
@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/
February 5, 2025 at 7:57 PM
Happy to be part of the core team for Climate AI Nordics!
Reposted by John Martinsson
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!<<
##ccai >>Read more!<<
January 9, 2025 at 2:00 PM
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!<<
##ccai >>Read more!<<
Reposted by John Martinsson
The paperback edition of "The Voices of Nature. How and Why Animals Communicate" is announced!
press.princeton.edu/books/paperb...
press.princeton.edu/books/paperb...
The Voices of Nature
Songs, barks, roars, hoots, squeals, and growls: exploring the mysteries of how animals communicate by sound
press.princeton.edu
December 30, 2024 at 10:15 PM
The paperback edition of "The Voices of Nature. How and Why Animals Communicate" is announced!
press.princeton.edu/books/paperb...
press.princeton.edu/books/paperb...
Reposted by John Martinsson
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!<<
##ccai >>Read more!<<
December 20, 2024 at 9:00 AM
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!<<
##ccai >>Read more!<<
Reposted by John Martinsson
Finally joined BlueSky!
I'm a PhD candidate mostly working on #bioacoustics, #machinelearning & #conservation.
This black squiggle (a spectrogram) may not seem like much, but it’s the first Eastern Bristlebird heard in QLD in 5+ years found using acoustic recorders + a deep learning model.
I'm a PhD candidate mostly working on #bioacoustics, #machinelearning & #conservation.
This black squiggle (a spectrogram) may not seem like much, but it’s the first Eastern Bristlebird heard in QLD in 5+ years found using acoustic recorders + a deep learning model.
December 7, 2024 at 10:22 PM
Finally joined BlueSky!
I'm a PhD candidate mostly working on #bioacoustics, #machinelearning & #conservation.
This black squiggle (a spectrogram) may not seem like much, but it’s the first Eastern Bristlebird heard in QLD in 5+ years found using acoustic recorders + a deep learning model.
I'm a PhD candidate mostly working on #bioacoustics, #machinelearning & #conservation.
This black squiggle (a spectrogram) may not seem like much, but it’s the first Eastern Bristlebird heard in QLD in 5+ years found using acoustic recorders + a deep learning model.
I've just launched my new webpage, johnmartinsson.org, where I share my research on machine listening for bioacoustics and ecosystem monitoring. Especially happy about the little clickable animal icons in the top. Click on a few to make a soundscape! #Bioacoustics #MachineLearning #MachineListening
December 10, 2024 at 3:36 PM
I've just launched my new webpage, johnmartinsson.org, where I share my research on machine listening for bioacoustics and ecosystem monitoring. Especially happy about the little clickable animal icons in the top. Click on a few to make a soundscape! #Bioacoustics #MachineLearning #MachineListening
Reposted by John Martinsson
30 people are now registered for the 2025 Nordic Workshop on AI for Tackling Climate Change! First 65 participants register for free!
Check out the program: ccainordics.com/events/2025-... !
@oisinmacaodha.bsky.social @aleksispi.bsky.social @johnmartinsson.bsky.social @nicolang.bsky.social
#ccai
Check out the program: ccainordics.com/events/2025-... !
@oisinmacaodha.bsky.social @aleksispi.bsky.social @johnmartinsson.bsky.social @nicolang.bsky.social
#ccai
December 4, 2024 at 7:23 AM
30 people are now registered for the 2025 Nordic Workshop on AI for Tackling Climate Change! First 65 participants register for free!
Check out the program: ccainordics.com/events/2025-... !
@oisinmacaodha.bsky.social @aleksispi.bsky.social @johnmartinsson.bsky.social @nicolang.bsky.social
#ccai
Check out the program: ccainordics.com/events/2025-... !
@oisinmacaodha.bsky.social @aleksispi.bsky.social @johnmartinsson.bsky.social @nicolang.bsky.social
#ccai
For anyone fascinated by technology, sound, and life itself, I highly recommend The Sounds of Life by the late Karen Bakker. This book explores how technology is unveiling the hidden sonic worlds of animals, transforming our understanding of nature’s communication.
December 3, 2024 at 1:09 PM
For anyone fascinated by technology, sound, and life itself, I highly recommend The Sounds of Life by the late Karen Bakker. This book explores how technology is unveiling the hidden sonic worlds of animals, transforming our understanding of nature’s communication.
Reposted by John Martinsson
Attending NeurIPS next week? Drop by by our poster for the paper "GOMAA-Geo: GOal Modality Agnostic Active Geo-localization"!
Go to East Exhibit Hall A-C #1403 on Dec 11th 4:30pm, where Anindya Sarkar (WashU) will present our work.
Paper: arxiv.org/abs/2406.019...
Code: github.com/mvrl/GOMAA-Geo
Go to East Exhibit Hall A-C #1403 on Dec 11th 4:30pm, where Anindya Sarkar (WashU) will present our work.
Paper: arxiv.org/abs/2406.019...
Code: github.com/mvrl/GOMAA-Geo
GOMAA-Geo: GOal Modality Agnostic Active Geo-localization
We consider the task of active geo-localization (AGL) in which an agent uses a sequence of visual cues observed during aerial navigation to find a target specified through multiple possible modalities...
arxiv.org
December 2, 2024 at 5:45 PM
Attending NeurIPS next week? Drop by by our poster for the paper "GOMAA-Geo: GOal Modality Agnostic Active Geo-localization"!
Go to East Exhibit Hall A-C #1403 on Dec 11th 4:30pm, where Anindya Sarkar (WashU) will present our work.
Paper: arxiv.org/abs/2406.019...
Code: github.com/mvrl/GOMAA-Geo
Go to East Exhibit Hall A-C #1403 on Dec 11th 4:30pm, where Anindya Sarkar (WashU) will present our work.
Paper: arxiv.org/abs/2406.019...
Code: github.com/mvrl/GOMAA-Geo
Reposted by John Martinsson
Another thing to be thankful for: the use of AI to help improve climate change models.
From The Economist: www.economist.com/science-and-...
Free access on archive.org: archive.is/N9uaF
From The Economist: www.economist.com/science-and-...
Free access on archive.org: archive.is/N9uaF
Artificial intelligence is helping improve climate models
More accurate predictions will lead to better policy-making
www.economist.com
November 29, 2024 at 10:27 PM
Another thing to be thankful for: the use of AI to help improve climate change models.
From The Economist: www.economist.com/science-and-...
Free access on archive.org: archive.is/N9uaF
From The Economist: www.economist.com/science-and-...
Free access on archive.org: archive.is/N9uaF