Oleksandr Karasov
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karasov.bsky.social
Oleksandr Karasov
@karasov.bsky.social
Geographer at Aalto University. Non-material values of nature, outdoor recreation, big data, crowdsourcing, landscape aesthetics, remote sensing, natural language processing.
IPBES Transformative Change fellow. 🇺🇦 🇵🇹 🇪🇪 🇫🇮
This idea, borrowed from the economics of culture, helps make intangible values of nature visible.
We also outline a vision for 'PPGIS 2.0', transforming participatory mapping into a recommendation service for outdoor activities. We warmly welcome your feedback! Preprint: doi.org/10.31235/osf...
OSF
doi.org
September 19, 2025 at 1:08 PM
This is the vision @htenkanen.bsky.social and I explore in our new #Ukrainability preprint. Our solution is to treat cultural ecosystem services as the extra quality of time a person spends connected with the environment. This creates a metric, if time in nature feels 'wasted' or 'well spent'.
September 19, 2025 at 1:08 PM
The broader point: carefully enriching any mobile big data (Twitter is just one example) with temporal and environmental context can reveal complex mobility patterns. This opens new paths to understand transnational lifestyles and to support cross-border cohesion in Europe and beyond.
September 18, 2025 at 9:29 AM
By testing 100 different model variations, we found the best-performing model, which relatively accurately identified home and work locations. Parameters that looked best under manual validation were not those that best matched aggregated official statistics. Manual validation matters!
September 18, 2025 at 9:29 AM
We developed a new framework that enriches sparse, geolocated Twitter data by integrating it with universally available data sources: satellite imagery and time-use survey data, to better predict daily activity locations of people.
September 18, 2025 at 9:29 AM
In our new @ijgis.bsky.social paper, @ollejarv.bsky.social and I analysed 9M geolocated tweets from the Greater Region of Luxembourg within the #BORDERSPACE project at the @digigeolab.bsky.social, funded by the Research Council of Finland and @koneensaatio.fi.
September 18, 2025 at 9:29 AM
Mobile messengers like Telegram offer a safe and inclusive way to engage communities in participatory mapping during wartime.
Explore the interactive map at ukrainability.space
More updates coming soon! #Ukrainability
Streamlit
ukrainability.space
May 22, 2025 at 10:09 AM
At #LBS2025, hosted by @aalto.fi, I presented early results from the waterfront areas in Kremenchuk city (Central Ukraine). Using a Telegram-based bot, we mapped where people go outdoors and how they rate the quality of these experiences in collaboration with 🇺🇦 experts and municipality.
May 22, 2025 at 10:09 AM
What truly made this fellowship special was the collaborative environment. Working alongside such brilliant minds has been genuinely inspiring, and I look forward to building upon these insights in future work.
#IPBES #Biodiversity #Sustainability #EnvironmentalResearch
May 13, 2025 at 7:38 PM
The analysis showed industries focused on instrumental values (mining, shipping, tourism, fashion to name a few) were more likely using sustainability for marketing, compared to content about mangrove forests, wetlands and biodiversity conservation.
May 13, 2025 at 7:38 PM
My specific contribution was analysing social media discourse using zero-shot modelling on Twitter data. I revealed how different sectors engage with environmental concepts - with some interesting findings about greenwashing potential.
May 13, 2025 at 7:37 PM
Our work involved collecting diverse visions from economic, spiritual, and academic texts, artistic expressions and social media. We analysed whether these visions could truly reshape human-nature relationships and address the root drivers of biodiversity loss.
May 13, 2025 at 7:37 PM