1. SeethaRam Janapala, Shiladitya Roy, Jackson John, Luca Columbu, Joseph Carrozza, Robert Zack, and Charles Tappert REFACTORING A KEYSTROKE BIOMETRIC SYSTEM

2. Biometric Authentication System (BAS)

3. Bio Feature Extractor

4. Biometric Authentication System (BAS)

5. BAS Accuracy Calculator

8. Refactoring Objectives  Fix errors and warnings in the code.  Remove deprecated elements and replace with supported ones.  Conform to coding standards.  Rewrite memory management components to support large data sets.  Improve system performance.  Enable applications to run standalone without an IDE.

9. Completed Tasks  Modified code to efficiently use threads, collections, files, and buffering techniques to improve the system speed, manage the memory, and avoid OutOfMemory errors.  Now the system uses only 60MB-120MB memory and less CPU allowing the user to run the system in the background and continue his/her work.60MB-120MB memory and less CPU

10. Completed Tasks  Preserve dichotomy data so subsequent runs did not need to re-dichotomize.  Changed BAS defaults to support odd valued NN’s.  Removed all unnecessary buttons to save dichotomy data as we are already storing the data by default.

11. Completed Tasks  Parameterized the 'lowest N choices' for test results which can be used for larger nearest neighbor choice.  Converted Perl and Python scripts to Java.  Added error handling and improved logging.  Results saved in HTML format.