Pattern Recognition with Fuzzy Objective Function Algorithms
Pattern Recognition with Fuzzy Objective Function Algorithms
Tracing Problem Solving in Real Time: fMRI Analysis of the Subject-paced Tower of Hanoi
Journal of Cognitive Neuroscience
Brain Activation Detection by Neighborhood One-Class SVM
WI-IATW '07 Proceedings of the 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops
Simulating human heuristic problem solving: a study by combining ACT-R and fMRI brain image
BI'09 Proceedings of the 2009 international conference on Brain informatics
Using SVM to predict high-level cognition from fMRI data: a case study of 4*4 sudoku solving
BI'09 Proceedings of the 2009 international conference on Brain informatics
A quantitative comparison of functional MRI cluster analysis
Artificial Intelligence in Medicine
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In the present study, brain activation patterns of heuristic problem solving were investigated in the context of the puzzle Sudoku experiment by using a two-stage clustering approach. The cognitive experiment was composed of easy tasks and difficult tasks. In the two-stage clustering approach, K-means served as the data selection role in the first stage and the affinity propagation (AP) served as partition role in the second stage. Functional magnetic resonance imaging (fMRI) was used to collect the slow event related paradigm data. Simulated fMRI datasets were used to evaluate the validity of the clustering method and compare the performance of fuzzy c-means (FCM) as an alternate method in the first stage. Test results illustrated that the performance of Kmeans in this role was better than that of FCM. Further, the proposed method was applied to the heuristic problem solving fMRI data and the results showed that the brain activation patterns observed in the experiment exhibited compact and coherent activity mode in dealing with different cognitive tasks.