Data Linkage Graphical User Interface for Febrl Author: Changyang Li Student ID:u Supervisor: Peter Christen Faculty of Engineering and Information Technology Date: June 14, 2007

Agenda  Introduction of Febrl  Background  Overview of GUI  Technology required  Demonstration  Timetable

An outline of Febrl  Freely Extensible Biomedical Record Linkage Release 0.3  The software has been developed by ANU Data Mining Group  The software designed to provide three main functions to analysis data sets provided

Three Functions 1.Data Cleaning and Standardization  The aim is to transform the information stored in the original data into a well defined and consistent form 2.Deduplication  Removing the duplicate records 3.Record Linkage  Comparing records and deciding whether they are a match or a non-match, or leaving the decision to the user

Patient Belconnen Record A Woden Record B ? Record Linkage Function

Overview of main steps for original Febrl  The first one deals with data cleaning and standardization  The second aims to perform actual linkage or deduplication  The user needs to specify various settings in order to be able to perform a cleaning/ standardization/or a linkage/deduplication

Overview of GUI Why is GUI so important?  The original Febrl can only be operated by the user who knows the command of the Python programming language  It is hard and complicated to modify the initial data for the user  The user needs to be familiar with the rules of parameters and the structure of original Febrl

 Parameter: m_prob Maximum value = 0.99  If typing the value is bigger than the max m_prob = 1 Traceback (most recent call last): OverflowError: math range error

Functions of Graphical User Interface  The main multi-panel visualizing parameters used in Febrl for users  Inside GUI, rules of setting distinctive parameters have been set in.  The sequence of setting parameters matches native processes of origin Febrl  The GUI provides flexible ways for user to enter or modify the parameters for the date set  The output result can be visualized to be displayed in the sub-panel  The background processing is relatively transparent for user

The structure of classes for GUI  The hierarchy of class diagram generally follows the relationship between wx.Frame and wx.Panel

How to implement background processing through GUI  All parameters setting are recorded at real time  After initialization, the similar Python modular code will be generated to be executed  The Python code has the same function as the original Febrl one Such as project-deduplicate.py

All of set paramters transferred to class of ProjectData.py Process of function of CreateCode in class of ProjectData.py The executable Python code The code used to replace one in the original Febrl Transferred to the project of original Febrl and executed. The output result will be generated to show in the GUI Setting parameters in the GUI The diagram of connecting GUI to Febrl Output results

Display of output results  The structure of tree is used to exhibit the input and output.  Users can choose any output showed in the tree of the left panel  There are two sub-panels in right panel which display two different results of output

Technology needed  Python: Python is an object-oriented and scripting programming language  wxPython : wxPython is a GUI toolkit for the Python programming language. It allows programmers to create programs with a functional graphical user interface.  Eclipse SDK plus Pydev : it is popular combination tools to develop various python projects including python GUI project.  MVC: Model-View-Controller

Demonstration

Timetable  Week 1~2 Familiar with the Febrl and preparing technology knowledge  Week3~4 Initial presentation and Initial requirement report  Week 5~6 Draft graphical user interface programming accomplished  Week 7~8 Background process programming  Week 9 ~10 Debugging and updating  Week 11~13 Finishing the final report

Any Question ? Thank you

Acknowledgement  Mysupervisor Mr. Peter Christen  My academic supervisor Dr. Peter Strazdins  My team member: Xiong Li