Visualization, analysis and mining of geo-spatial information in educational data sets using web-based tools

Aniruddha Desai |Winter 2013 PresentationCenter for Web and Data ScienceUniversity of Washington, Tacoma

Outline

Motivation / Background

OSPI – RTI Reports

OSPI – SNP Reports

Collect, Analyze, Share Data

Data Visualization Goals

Data Visualization GoalsLincoln County

No. of Participants Trained: XNo. of Responses Rcvd: X’

Population Density: YNumber of Trainings: Z

Go to Results

Data Visualization Goals

Data Visualization Goals

Data Analysis / Mining Goals

Can visualizations answer some of these questions?–Can we predict which area needs more professional development training next year?–Is the response rate on surveys and participant attendance rate co-related?–High volume / variety of data (some of it geo-spatial): survey responses / qualitative assessments / user zip codes / school locations / district boundaries – how do we extract useful information?

Data Analysis / Mining Goals

– Are demographic data (census), income levels, crime statistics, employment rates related to:the outcomes of intervention (for RTI)?the quality of professional development (for SNP)?

– Data collection, reporting and visualization is the first step – finding patterns potentially the next step.

– How do the visualizations scale up from state to national level?

Tools– Drupal CMS (already in-place)– Google Maps API – Gmap module to create an

interface to the Google Maps API within Drupalhttp://drupal.org/project/gmap

– D3.JS (Data Driven Documents) visualizations such as Heat Maps, Chloropleth Maps, Bar charts, Pie chartshttps://github.com/mbostock/d3/wiki/Gallery

– Open Street Maps APIhttp://www.openstreetmap.org/ (Drupal integration?)

Strategy

– Implement geographic map-based visualizations with appropriate amount of information at different zoom factors.

– At high level of granularity link data points on map to bar charts / reports for more detail.

– Analyze data visualizations for patterns.

Thank you!

Q&A