A large-scale ultra-high-resolution segmentation dataset augmentation framework for photovoltaic panels in photovoltaic power plants based on priori knowledge

Applied Energy, Год журнала: 2025, Номер 390, С. 125879 - 125879

Опубликована: Апрель 10, 2025

Язык: Английский

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A high-throughput approach for the efficient prediction of perceived similarity of natural objects

Опубликована: Апрель 22, 2025

Perceived similarity offers a window into the mental representations underlying our ability to make sense of visual world, yet, collection judgments quickly becomes infeasible for larger datasets, limiting their generality. To address this challenge, here we introduce computational approach that predicts perceived from neural network activations through set 49 interpretable dimensions learned on 1.46 million triplet odd-one-out judgments. The allowed us predict separate, independently-sampled scores with an accuracy up 0.898. Combining human ratings same led only small improvements, indicating used similar information as humans in task. Predicting highly homogeneous image classes revealed performance critically depends granularity training data. Our improve brain-behavior correspondence large-scale neuroimaging dataset and visualize candidate features use making judgments, thus highlighting which parts may carry behaviorally-relevant information. Together, results demonstrate current networks sufficient capturing broadly-sampled scores, offering pathway towards automated natural images.

Язык: Английский

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Comprehensive Neural Representations of Naturalistic Stimuli through Multimodal Deep Learning

Опубликована: Апрель 19, 2025

Abstract A central challenge in cognitive neuroscience is understanding how the brain represents and predicts complex, multimodal experiences naturalistic settings. Traditional neural encoding models, often based on unimodal or static features, fall short capturing rich, dynamic structure of real-world cognition. Here, we address this by introducing a video-text alignment framework that whole-brain responses integrating visual linguistic features across time. Using state-of-the-art deep learning model (VALOR), achieve more accurate generalizable than (AlexNet, WordNet) (CLIP) baselines. Beyond improving prediction, our automatically maps cortical semantic spaces, aligning with human-annotated dimensions without requiring manual labeling. We further uncover hierarchical predictive coding gradient, where different regions anticipate future events over distinct timescales—an organization correlates individual abilities. These findings provide new evidence temporal integration core mechanism function. Our results demonstrate models aligned stimuli can reveal ecologically valid mechanisms, offering powerful, scalable approach for investigating perception, semantics, prediction human brain. This advances neuroimaging bridging computational modeling

Язык: Английский

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A high-throughput approach for the efficient prediction of perceived similarity of natural objects

Опубликована: Апрель 22, 2025

Perceived similarity offers a window into the mental representations underlying our ability to make sense of visual world, yet, collection judgments quickly becomes infeasible for larger datasets, limiting their generality. To address this challenge, here we introduce computational approach that predicts perceived from neural network activations through set 49 interpretable dimensions learned on 1.46 million triplet odd-one-out judgments. The allowed us predict separate, independently-sampled scores with an accuracy up 0.898. Combining human ratings same led only small improvements, indicating used similar information as humans in task. Predicting highly homogeneous image classes revealed performance critically depends granularity training data. Our improve brain-behavior correspondence large-scale neuroimaging dataset and visualize candidate features use making judgments, thus highlighting which parts may carry behaviorally-relevant information. Together, results demonstrate current networks sufficient capturing broadly-sampled scores, offering pathway towards automated natural images.

Язык: Английский

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Brain2GAN: Feature-disentangled neural encoding and decoding of visual perception in the primate brain

PLoS Computational Biology, Год журнала: 2024, Номер 20(5), С. e1012058 - e1012058

Опубликована: Май 6, 2024

A challenging goal of neural coding is to characterize the representations underlying visual perception. To this end, multi-unit activity (MUA) macaque cortex was recorded in a passive fixation task upon presentation faces and natural images. We analyzed relationship between MUA latent state-of-the-art deep generative models, including conventional feature-disentangled adversarial networks (GANs) (i.e., z - w -latents StyleGAN, respectively) language-contrastive diffusion CLIP-latents Stable Diffusion). mass univariate encoding analysis showed that outperform both CLIP explaining responses. Further, -latent features were found be positioned at higher end complexity gradient which indicates they capture information relevant high-level activity. Subsequently, multivariate decoding resulted spatiotemporal reconstructions Taken together, our results not only highlight important role feature-disentanglement shaping perception but also serve as an benchmark for future coding.

Язык: Английский

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A high-throughput approach for the efficient prediction of perceived similarity of natural objects

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Июль 2, 2024

ABSTRACT Perceived similarity offers a window into the mental representations underlying our ability to make sense of visual world, yet, collection judgments quickly becomes infeasible for larger datasets, limiting their generality. To address this challenge, here we introduce computational approach that predicts perceived from neural network activations through set 49 interpretable dimensions learned on 1.46 million triplet odd-one-out judgments. The allowed us predict separate, independently-sampled scores with an accuracy up 0.898. Combining human ratings same led only small improvements, indicating used similar information as humans in task. Predicting highly homogeneous image classes revealed performance critically depends granularity training data. Our improve brain-behavior correspondence large-scale neuroimaging dataset and visualize candidate features use making judgments, thus highlighting which parts may carry behaviorally-relevant information. Together, results demonstrate current networks sufficient capturing broadly-sampled scores, offering pathway towards automated natural images.

Язык: Английский

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Text-related functionality and dynamics of visual human pre-frontal activations revealed through neural network convergence

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Апрель 2, 2024

Summary The functional role of visual activations human pre-frontal cortex remains a deeply debated question. Its significance extends to fundamental issues localization and global theories consciousness. Here we addressed this question by comparing, dynamically, the potential parallels between relational structure prefrontal textual-trained deep neural networks (DNNs). frontal structures were revealed in intra-cranial recordings patients, conducted for clinical purposes, while patients viewed familiar images faces places. Our results reveal that were, surprisingly, predicted text not DNNs. Importantly, temporal dynamics these correlations showed striking differences, with rapid decline over time component, but persistent including significant image offset response component. point dynamic text-related function responses brain.

Язык: Английский

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Fine-grained knowledge about manipulable objects is well-predicted by contrastive language image pre-training

iScience, Год журнала: 2024, Номер 27(7), С. 110297 - 110297

Опубликована: Июнь 18, 2024

Язык: Английский

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The Brain Tells a Story: Unveiling Distinct Representations of Semantic Content in Speech, Objects, and Stories in the Human Brain with Large Language Models

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Фев. 6, 2024

Abstract In recent studies, researchers have used large language models (LLMs) to explore semantic representations in the brain; however, they typically assessed different levels of content, such as speech, objects, and stories, separately. this study, we recorded brain activity using functional magnetic resonance imaging (fMRI) while participants viewed 8.3 hours dramas movies. We annotated these stimuli at multiple levels, which enabled us extract latent LLMs for content. Our findings demonstrate that predict human more accurately than traditional models, particularly complex background stories. Furthermore, identify distinct regions associated with representations, including multi-modal vision-semantic highlights importance modeling multi-level simultaneously. will make our fMRI dataset publicly available facilitate further research on aligning function. Please check out webpage https://sites.google.com/view/llm-and-brain/ .

Язык: Английский

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Individual differences in prefrontal coding of visual features

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Май 10, 2024

Abstract Each of us perceives the world differently. What may underlie such individual differences in perception? Here, we characterize lateral prefrontal cortex’s role vision using computational models, with a specific focus on differences. Using 7T fMRI dataset, found that encoding models relating visual features extracted from deep neural network to brain responses natural images robustly predict patches LPFC. We then explored representational structures and screened for high predicted observed more substantial coding schemes LPFC compared regions. Computational modeling suggests amplified could result random projection between sensory high-level regions underlying flexible working memory. Our study demonstrates under-appreciated processing idiosyncrasies how different individuals experience world.

Язык: Английский

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