Case-based reasoning
The scientist and engineer's guide to digital signal processing
The scientist and engineer's guide to digital signal processing
Applying case-based reasoning: techniques for enterprise systems
Applying case-based reasoning: techniques for enterprise systems
ACM Computing Surveys (CSUR)
Digital Signal Processing with Examples in MATLAB
Digital Signal Processing with Examples in MATLAB
Case-Based Reasoning: Experiences, Lessons and Future Directions
Case-Based Reasoning: Experiences, Lessons and Future Directions
Efficient Time Series Matching by Wavelets
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Artificial Intelligence in Medicine
The wavelet transform, time-frequency localization and signal analysis
IEEE Transactions on Information Theory
Artificial Intelligence in Medicine
Classify and Diagnose Individual Stress Using Calibration and Fuzzy Case-Based Reasoning
ICCBR '07 Proceedings of the 7th international conference on Case-Based Reasoning: Case-Based Reasoning Research and Development
Hierarchical Classifiers for Complex Spatio-temporal Concepts
Transactions on Rough Sets IX
Case-based systems in health sciences: a case study in the field of stress
WSEAS TRANSACTIONS on SYSTEMS
Multi-level Abstractions and Multi-dimensional Retrieval of Cases with Time Series Features
ICCBR '09 Proceedings of the 8th International Conference on Case-Based Reasoning: Case-Based Reasoning Research and Development
Severity Evaluation Support for Burns Unit Patients Based on Temporal Episodic Knowledge Retrieval
AIME '09 Proceedings of the 12th Conference on Artificial Intelligence in Medicine: Artificial Intelligence in Medicine
A multi-module case-based biofeedback system for stress treatment
Artificial Intelligence in Medicine
Expert Systems with Applications: An International Journal
Intelligent data interpretation and case base exploration through temporal abstractions
ICCBR'10 Proceedings of the 18th international conference on Case-Based Reasoning Research and Development
The 4 diabetes support system: a case study in CBR research and development
ICCBR'11 Proceedings of the 19th international conference on Case-Based Reasoning Research and Development
Personal Health System architecture for stress monitoring and support to clinical decisions
Computer Communications
Flexible and efficient retrieval of haemodialysis time series
BPM' 2012 Proceedings of the 2012 international conference on Process Support and Knowledge Representation in Health Care
Expert Systems with Applications: An International Journal
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Objective: An important procedure in diagnosing stress-related disorders caused by dysfunction in the interaction of the heart with breathing, i.e., respiratory sinus arrhythmia (RSA), is to analyse the breathing first and then the heart rate. Analysing these measurements is a time-consuming task for the diagnosing clinician. A decision-support system in this area would reduce the analysis task of the clinician and enable him/her to give more attention to the patient. We have created a decision-support system which contains a signal classifier and a pattern identifier. The system performs an analysis of the physiological time series concerned which would otherwise be performed manually by the clinician. Methods: The signal-classifier, HR3Modul, classifies heart-rate patterns by analysing both cardio- and pulmonary signals, i.e., physiological time series. HR3Modul uses case-based reasoning (CBR), using a wavelet-based method for retrieving features from the signals. The system searches for familiar shapes in the signals by comparing them with shapes already stored. We have applied a best fit scheme for handling signals of different lengths, as the length of a breath is highly dynamic. We also apply automatic weighting to the features to obtain a more autonomous system. The classified heart signals indicate if a patient may be suffering from a stress-related disorder and the nature of the disorder. These classified signals are thereafter sent to the second subsystem, the pattern-identifier. The pattern-identifier analyses the classified signals and searches for familiar patterns by identifying sequences in the classified signals. The identified sequences give clinicians a more complete analysis of the measurements, providing them with a better basis for diagnosis. Results and conclusion: We have shown that a case-based classifier with a wavelet feature extractor and automatic weighting is a viable option for building a decision-support system for the psychophysiological domain, as it is at par, or even outperforms other retrieval techniques and is less complex.