MISSING DATA IMPUTATION IN CARDIAC DATA SET (SURVIVAL PROGNOSIS
Journal Title: International Journal on Computer Science and Engineering - Year 2010, Vol 2, Issue 5
Abstract
Treating missing value is very big task in the data preprocessing methods. Missing data are a potential source of bias when analyzing clinical trials. In this paper we analyze the performance of different data imputation methods in a task where the aim is to predict the probability of survival of cardiac patient. In this paper, comparison of handling missing data in cardiac dataset. Mean Imputation, KNN imputation method, two correlation based methods known as EMImputed _ columns, LSImputed _ Rows and multiple imputation method referred as NORM (which is based on Expectation aximization algorithm) method were used to replace missing values found in a dataset containing 3500 records of patients. The results were analyzed in terms of the calibration of the results. Nevertheless, k-NN methods may be useful to provide relatively accurate estimations with lower error variability
Authors and Affiliations
R. KAVITHA KUMAR , DR. R. M. CHADRASEKAR
Keywords
Related Articles
- EP ID EP134528
- DOI -
- Views 112
- Downloads 0
A Novel Session Based Dual Image Encoding and Hiding Technique Using DWT and Spread Spectrum
This work proposes a DWT based Steganographic technique. Cover image is decomposed into four sub bands using DWT. Two Encoded secret images are embedded within the HL and HH sub bands respectively. During embedding secre...
Assessment of Fraud Pretentious Business Region Research Articles Using Data Mining Approaches
In any organization, fraud detection and prevention is daunting task because millions of dollars lost with the different nature of fraudulent activities. Organizations got to engage intelligent and innovative techniques...
Power Saving Scheme (PSS) in Clusters of Heterogeneous ireless Sensor Networks
In this paper, we proposed a Power Saving Scheme (PSS) multi-hop sensor network using partition clusters. It avoids collision and idle listening time of sensor nodes for better overall network life time. The basic sensor...
Implementation of a Secured system with Roaming Server and Roaming Ports
The main goal of this paper is to design and implement a secured system against Server hijacking, which leads to Denial of Service (DoS) [5] attacks. This system uses more than one server for providing security. But only...
SEMANTIC BASED MULTIPLE WEB SEARCH ENGINE
With the tremendous growth of information available to end users through the Web, search engines come to play ever a more critical role. Nevertheless, because of their general-purpose approach, it is always less uncommon...