Leonardo Pettini

dblp:349/7830 · DBLP profile ↗
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2ranked-venue papers
0as first author
2since 2021 · last 2024
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 2 · 2 since 2021Applied, interdisciplinary, general and emerging computing · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Trustworthy machine learning · 33% Language models and text generation · 33% Representation and self-supervised learning · 33%
Interdisciplinary, comprehensive, and emerging computing
1 paper
Computational social science and digital humanities · 100%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Representation and self-supervised learning › representation matching
feature alignment
0.812024
Evaluating alignment between humans and neural network representations in image-based learning tasks · NeurIPS 2024
Natural language and speech › Language models and text generation › alignment
human-model alignment
0.812024
Evaluating alignment between humans and neural network representations in image-based learning tasks · NeurIPS 2024
Machine learning › Trustworthy machine learning
interpretability
0.812024
Evaluating alignment between humans and neural network representations in image-based learning tasks · NeurIPS 2024
Computational social science and digital humanities
cognitive science
0.212024
Evaluating alignment between humans and neural network representations in image-based learning tasks · NeurIPS 2024

Methods — techniques the papers use, named apart from their topics

contrastive learning · 1.5multimodal training · 0.8multi-modal training · 0.8
YearPublicationVenuePosition
2024 Evaluating alignment between humans and neural network representations in image-based learning tasks
abstract
Humans represent scenes and objects in rich feature spaces, carrying information that allows us to generalise about category memberships and abstract functions with few examples. What determines whether a neural network model generalises like a human? We tested how well the representations of $86$ pretrained neural network models mapped to human learning trajectories across two tasks where humans had to learn continuous relationships and categories of natural images. In these tasks, both human participants and neural networks successfully identified the relevant stimulus features within a few trials, demonstrating effective generalisation. We found that while training dataset size was a core determinant of alignment with human choices, contrastive training with multi-modal data (text and imagery) was a common feature of currently publicly available models that predicted human generalisation. Intrinsic dimensionality of representations had different effects on alignment for different model types. Lastly, we tested three sets of human-aligned representations and found no consistent improvements in predictive accuracy compared to the baselines. In conclusion, pretrained neural networks can serve to extract representations for cognitive models, as they appear to capture some fundamental aspects of cognition that are transferable across tasks. Both our paradigms and modelling approach offer a novel way to quantify alignment between neural networks and humans and extend cognitive science into more naturalistic domains.
Can Demircan, Tankred Saanum, Leonardo Pettini, Marcel Binz, Blazej M. Baczkowski, Christian F. Doeller, Mona M. Garvert, Eric Schulz
NeurIPS3
2022 Decision-Making with Naturalistic Options
Can Demircan, Leonardo Pettini, Tankred Saanum, Marcel Binz, Blazej M. Baczkowski, Christian F. Doeller, Mona M. Garvert, Eric Schulz
CogSci2