Final answer:
In the context of the question, citizen science refers to the non-scientist logging photos of leaves to a database to train an AI in identifying trees, as this involves the public in scientific data collection and analysis.
Therefore, the correct answer is: option 'a non-scientist logging photos of leaves to a database to train an AI algorithm in identifying trees'.
Step-by-step explanation:
Citizen science is the practice of the general public participating in scientific research. It often involves data collection, analysis, and may even contribute to significant discoveries and developments within scientific fields.
A prime example of this is the Sloan Digital Sky Survey (SDSS) Galaxy Zoo project, where volunteers classify numerous galaxy images, contributing to our understanding of the universe. This project also highlights the era of Big Data in astronomy and demonstrates the crucial role of human input in complementing supercomputers and advanced algorithms.
Another noteworthy contribution of citizen science is in digital crowdsourcing. This is where services, ideas, or content are solicited from a broad online community, which has been instrumental in raising funds, generating diverse data pools like Wikipedia, and even producing this very educational text through collaborative writing and reviewing.
Among the examples provided in the question, a non-scientist logging photos of leaves to a database to train an AI algorithm in identifying trees represents citizen science. It is an active participation in a scientific process aimed at enhancing AI capabilities, a task that benefits from diverse data gathered by the public.