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48 results for Cognitive Modeling

The paper proposes a new framework to generate synthetic data with human-like imperfections to prevent model collapse.

problem Model collapse due to statistical optimization of synthetic data.
method Introduces Prompt-driven Cognitive Computing Framework (PMCSF) with Cognitive State Decoder (CSD) and Cognitive Text Encoder (CTE).
result The framework generates text with cognitive imperfections, reducing maximum drawdown and delivering defensive alpha.

New framework for designing cognitive experiments to infer latent cognitive mechanisms.

problem Designing optimal cognitive experiments for Bayesian inference of latent cognitive mechanisms.
method Formulated as a Bayesian Experimental Design (BED) problem, treating environments as design variables. Introduced an amortized Bayesian experimental design framework for efficient posterior inference and design evaluation.
result No single environment is uniformly optimal for all cognitive inference objectives, revealing trade-offs between expected information gain, posterior recoverability, and information efficiency.

New framework for designing cognitive experiments to infer latent cognitive mechanisms.

problem Designing cognitive experiments to infer latent cognitive mechanisms.
method Formulated as a Bayesian Experimental Design (BED) problem, treating the experimental environment as the design variable. Introduced an amortized Bayesian experimental design framework for efficient posterior inference and design evaluation.
result No single environment is uniformly optimal across cognitive inference objectives, revealing trade-offs between expected information gain, posterior recoverability, and information efficiency.

Unified cognitive system from diverse fMRI studies using neural representations.

problem Aggregate heterogeneous brain function data into a universal cognitive system.
method Multi-task learning and multi-scale dimension reduction to learn low-dimensional cognitive representations.
result Achieves best prediction performance on large reference datasets and small datasets.

This paper explores how cognitive biases impact human understanding of rule-based machine learning models.

problem The impact of cognitive biases on human interpretation of machine learning models.
method A review of 20 cognitive biases and their effects on human understanding of machine learning models.
result Cognitive biases significantly affect human understanding of interpretable machine learning models, particularly logical rules.

New method identifies latent variables in cognitive models using neural networks.

problem Inference of latent variables in complex cognitive models is limited.
method Recurrent neural networks and simulation-based inference for latent variable sequences.
result Extends neural Bayes estimation to broader classes of cognitive models.

This paper tackles the interpretability gap between deep learning models and human cognition.

problem The gap between deep learning models and human cognitive competence.
method A universal learning framework is proposed to evaluate and improve model interpretability.
result The uniqueness of solution and conditions for unique solution are proved.

Study shows cognitive load impacts financial market efficiency, especially for less sophisticated investors.

problem Cognitive load's effect on financial market information processing.
method Developed a theoretical framework and tested it with exogenous disclosure complexity variation.
result Cognitive load significantly impairs price discovery, particularly for less sophisticated investors.

The paper investigates how ambiguous data and cognitive biases affect machine learning in humanitarian decision making.

problem Ambiguous data and cognitive biases impact the interpretability of machine learning models in humanitarian decision making.
method The study will explore the effects of data ambiguity and cognitive biases on machine learning algorithms in humanitarian contexts.
result The research aims to uncover the specific ways in which ambiguous data and cognitive biases influence the interpretability of machine learning models in humanitarian decision making.

We propose a neural superstatistics method to estimate dynamic cognitive models from time series data.

problem Memoryless cognitive models ignore parameter fluctuations, leading to inaccurate predictions.
method Developed a simulation-based deep learning method for Bayesian inference of superstatistical models.
result Deep learning method efficiently recovers time-varying and time-invariant parameters.

New cognitive model priors improve human decision prediction.

problem Predicting human decisions with high precision remains challenging.
method Pretrained neural networks on synthetic data generated by cognitive models, fine-tuning on real human data.
result Fine-tuned neural networks achieve unprecedented state-of-the-art improvements on benchmark datasets.

Study improves robustness of Bayesian inference for cognitive models.

problem Outliers and contaminants affect parameter estimation in cognitive models.
method Robustness of parameter estimation using amortized Bayesian inference (ABI) with neural networks.
result Introducing contaminants from a Cauchy distribution increases robustness.

CogFormer trains a transformer to estimate parameters across various cognitive models.

problem Difficulty in fitting complex cognitive models and iterating over varying assumptions.
method Meta-amortized framework using a transformer to estimate parameters across multiple models.
result CogFormer accurately estimates parameters across different model families with minimal retraining.

Machine learning detects and classifies cognitive distortions in mental health texts.

problem Detect and classify cognitive distortions in mental health texts to improve treatment.
method Machine learning framework using crowdsourced and therapy dataset.
result Model achieved high F1 scores for detecting and classifying cognitive distortions.

New filters improve radar target inference in complex scenarios.

problem Improving radar target inference in highly non-linear system models.
method Developed inverse cubature Kalman filter (I-CKF), inverse quadrature Kalman filter (I-QKF), and inverse cubature-quadrature Kalman filter (I-CQKF) for non-linear systems.
result Numerical experiments show improved estimation accuracy compared to existing methods.

The paper discusses challenges and proposed solutions for evaluating model explanations.

problem Challenges in evaluating model explanations for interpretability.
method Proposes a distinction between descriptive and persuasive explanations and discusses potential research directions.
result Evaluating model explanations using functional metrics may perpetuate cognitive bias.

Pension benefits in rural China lead to cognitive decline among the elderly.

problem Cognitive decline in late adulthood among rural Chinese elderly.
method Examined the effects of a new pension scheme on cognitive performance.
result Pension benefits negatively impact cognitive functioning, particularly delayed recall.

Framework enhances AI explainability by aligning with human cognitive models.

problem Lack of explainability in AI models hinders trust and accountability.
method Integrates explainability techniques with Malle's five category model of behavior explanation.
result Demonstrates practical relevance in credit risk assessment and regulatory analysis.

Unified framework trains spiking neural networks for various cognitive tasks.

problem Limitations of conventional neural network models in matching experimental neural dynamics.
method Modified SpikeProp learning algorithm, including biological features.
result Framework successfully trained spiking neural networks for diverse cognitive tasks.

Study extends cognitive modeling to natural images, revealing the importance of image representation.

problem Extending cognitive modeling to natural images and understanding human categorization.
method Conducted a large-scale study with over 500,000 human judgments. Used deep and shallow machine learning methods to represent images. Applied psychological models of categorization to natural images.
result Simple models with abstract prototypes outperform complex exemplar accounts when using expressive, data-driven image representations.

Model place cells as spatial embeddings for efficient path planning and cognitive map construction.

problem Encoding spatial navigation in the hippocampus.
method Model place cells using spectral decomposition of multi-step random walk transition kernels, inducing sparsity and adjacency.
result Place cells encode spatial information through non-negativity and inner-product structure, forming a cognitive map.

Deep learning ensemble improves Alzheimer vs. Mild Cognitive Impairment diagnosis.

problem Differentiating Alzheimer Disease from Mild Cognitive Impairment.
method Hybrid deep learning ensemble framework using MRI slices, pretrained models, and stacked ensemble learning.
result State-of-the-art accuracy (99.21%) for Alzheimer vs. Mild Cognitive Impairment classification.

New method combines brain imaging data from multiple studies to improve cognitive decoding.

problem Low statistical power in individual neuroimaging studies.
method A new methodology to analyze brain responses across tasks without a unified theoretical framework.
result Improves decoding performance for 80% of 35 functional-imaging studies.

Deep learning predicts Alzheimer's Disease progression with high accuracy.

problem Predicting multiple aspects of Alzheimer's Disease progression.
method Unsupervised deep learning on 1908 patients' 18-month clinical data.
result Model accurately predicts ADAS-Cog scores and identifies word recall as a predictor.

Study identifies key MRI features for predicting cognitive performance after mTBI.

problem Identify relevant diffusion MRI metrics for cognitive functions in mTBI patients.
method Proposes a novel feature selection method combining best-first search with genetic algorithm crossover.
result Achieves significantly more accurate predictions than other feature selection algorithms.

CSEAL uses cognitive structure to personalize learning paths.

problem Personalized learning paths based on learners' evolving knowledge levels and item structures.
method CSEAL integrates knowledge levels and item structures using a Markov Decision Process and actor-critic algorithm.
result CSEAL effectively personalizes learning paths, improving learning outcomes.

Personalized model improves ADAS-Cog13 cognitive score forecasting.

problem Improving accuracy in predicting cognitive changes in Alzheimer's Disease.
method Meta-Weighted Gaussian Process Experts (pGPE) model for personalized forecasting.
result Meta-weighting of expert models leads to significant improvements in forecasting accuracy.

UniPhyNet improves cognitive load classification accuracy using EEG, ECG, and EDA signals.

problem Classifying cognitive load using multimodal physiological data.
method Unified network architecture integrating multiscale parallel convolutional blocks, ResNet-type blocks, and channel block attention module. Uses bidirectional gated recurrent unit for temporal dependencies.
result Improves raw signal classification accuracy from 70% to 80% (binary) and 62% to 74% (ternary) on CL-Drive dataset.

A relatively recent advance in cognitive neuroscience has been multi-voxel pattern analysis (MVPA), which enables researchers to decode brain states and/or the type of information represented in the brain during a cognitive operation. MVPA methods utilize machine learning algorithms to distinguish among types of inform…

2012-05-10abs ↗pdf ↗

Model shows AI adoption amplifies financial market risk through prediction, herding, and cognitive dependency.

problem Systemic risk in financial markets due to AI adoption.
method Developed a unified model within an extended rational expectations framework, incorporating endogenous adoption, performative prediction, algorithmic herding, and cognitive dependency.
result Systemic risk multiplier grows superlinearly with AI penetration, implying tail-loss amplification of 18-54%.

End-to-end framework classifies cognitive workload in real-time driving scenarios.

problem Challenging task of classifying human cognitive states from behavioral and physiological signals.
method End-to-end framework using mixture Hyper Long Short Term Memory Networks (HyperNetworks).
result Framework outperforms previous methods with 83.9% precision and 87.8% recall.

Paper models Alzheimer's disease using genotypic, phenotypic, and cognitive data.

problem Early detection and risk factor identification for Alzheimer's disease.
method Probabilistic generative subspace learning from multi-view medical data.
result Proposes a method to model Alzheimer's disease that combines genotypic, phenotypic, and cognitive data.

Paper proposes RL for efficient MCI diagnosis from dialogue data.

problem Efficiently diagnose MCI from conversational data with minimal interaction.
method Reinforcement learning framework trained on clinical trial transcripts.
result Significantly outperforms supervised learning approaches with minimal conversation turns.

New benchmark tests machine learning's ability to learn causal overhypotheses.

problem Machine learning's difficulty in understanding causal overhypotheses.
method Adapted blicket detector environment for machine learning agents to test causal overhypotheses.
result Many state-of-the-art methods struggle with causal overhypotheses in the new benchmark.

DeepLight uses LSTM to decode fMRI data, improving cognitive state analysis.

problem Challenges in analyzing neuroimaging data due to high dimensionality, low sample size, and complex dependency structure.
method Introduces DeepLight framework using LSTM-based DL models to process fMRI data sequences, adapts LRP for interpretability.
result DeepLight outperforms conventional fMRI analysis methods in decoding cognitive states and identifying brain regions.

Accurate diagnosis of Alzheimer's Disease (AD) entails clinical evaluation of multiple cognition metrics and biomarkers. Metrics such as the Alzheimer's Disease Assessment Scale - Cognitive test (ADAS-cog) comprise multiple subscores that quantify different aspects of a patient's cognitive state such as learning, memor…

2017-06-26abs ↗pdf ↗