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DOI: 10.4338/ACI-2015-08-RA-0102
A Temporal Mining Framework for Classifying Un-Evenly Spaced Clinical Data
An Approach for Building Effective Clinical Decision-Making SystemPublication History
received:
19 August 2015
accepted:
08 January 2015
Publication Date:
16 December 2017 (online)
Summary
Background
Clinical time-series data acquired from electronic health records (EHR) are liable to temporal complexities such as irregular observations, missing values and time constrained attributes that make the knowledge discovery process challenging.
Objective
This paper presents a temporal rough set induced neuro-fuzzy (TRiNF) mining framework that handles these complexities and builds an effective clinical decision-making system. TRiNF provides two functionalities namely temporal data acquisition (TDA) and temporal classification.
Method
In TDA, a time-series forecasting model is constructed by adopting an improved double exponential smoothing method. The forecasting model is used in missing value imputation and temporal pattern extraction. The relevant attributes are selected using a temporal pattern based rough set approach. In temporal classification, a classification model is built with the selected attributes using a temporal pattern induced neuro-fuzzy classifier.
Result
For experimentation, this work uses two clinical time series dataset of hepatitis and thrombosis patients. The experimental result shows that with the proposed TRiNF framework, there is a significant reduction in the error rate, thereby obtaining the classification accuracy on an average of 92.59% for hepatitis and 91.69% for thrombosis dataset.
Conclusion
The obtained classification results prove the efficiency of the proposed framework in terms of its improved classification accuracy.