Core Methods in Educational Data Mining

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Presentation transcript:

Core Methods in Educational Data Mining HUDK4050 Fall 2015

Final Project Presentations Part 1 of 3

Final Projects Presentations of ideas for how educational data mining can be used to positively impact the world Some of you may decide to carry out these project ideas in Feature Engineering Studio, or as your capstone projects

Timing Remember: you have 5 minutes to present There will be 2 minutes for questions between presentations

Presenters #1 Nishant #2 Miggy #3 Xiang #4 Yang #5 Nathaniel #6 Sonam #7 John Saul

Which of these ideas has the highest potential for impact on the world? Impacting Practice OR Impacting Scientific Understanding #1 Nishant #2 Miggy #3 Xiang #4 Yang #5 Nathaniel #6 Sonam #7 John Saul

Visualization

Visualization Displaying information in a meaningful fashion

Visualization Should… (Tufte, 1983) Show the data Induce the viewer to think about the substance Avoid distorting what the data have to say Make large data sets coherent Encourage the eye to compare different pieces of data Reveal the data at several levels (And other stuff too)

Learning Curve What does a learning curve (typically) show?

Learning Curve What do the following curves mean?

What are learning curves used for?

What is the difference between Learning curves? Moment-by-moment learning graphs?

Scatterplots and Heat Maps

Scatterplots and Heat Maps What are the advantages of scatterplots relative to heat maps? What are the advantages of heat maps relative to scatterplots?

State Space Graphs

State Space Graphs What are they used for?

Learnograms: What are they good for? (Hershkovitz & Nachmias, 2009)

Activity Radar: What are they good for? (Kay, Maisonneuve, Yacef, & Reimann, 2006)

Gaze Plots: What are they good for? (Das, McEwan, & Douglas, 2008)

Spatial Usage Maps: What are they good for? (Borner & Penumarthy, 2003)

Pie Charts: Are they as bad as some folks say?

What’s wrong with this visualization?

Visualizations don’t have to be fancy to be effective

Other visualizations you like?

Other comments or questions on visualizations?

Assignment C5 Visualization Questions? Email me your visualizations Due Tuesday Questions? Email me your visualizations

The End