Introduction to Data Science – INFO 480 – Drexel University’s iSchool Sean P. Goggins, PhD April 30, 2013 Week Five

What is Data Science?  Storytelling  Database Theory – How you organize your data has a big influence on what you can do with it.  Agile Manifesto – Key thing is iterative development; it’s a technology value system.  Spiral Dynamics – What we view as fact and what we desire emerges from the data presented to us. Credit:

Tonight  Share Software for transformation on GitHub  Share How you approached the assigment with the class (individually)  Ask questions  Make sure you understand everyone’s approach  Help each other – The result not the language or technique used to transform data are what matter  Use network scripts from week one to transform your transformed data (that’s right!) into networks. Groups of 3

Week Five   Software Sharing #1 (Share scripts produced in week 3 using an open source software configuration management tool).   Students will refine and then share their scripts with other students   Included in the assignment is a 500 word explanation of how their script could be improved, optimized and adapted to other data of a similar type.   The “read me” file distributed with the script will explain to another user how to apply the script to the data distributed in assignment one. This will include specific, technical specifications.

Using GitHub for Software Sharing  Creating a GitHub Account  Creating a GitHub Project  Using the GitHub Desktop client  Committing & Syncing  The Pull Request  Sharing Your Software!  For my respository  Create a directory with your name under “student Files”  Put your assignment in there  Create a “pull request”

Discuss Homework  Analysis Questions. Write up a short essay with tables or graphs if needed to describe how you would:  Build a network using the scripts from week1 against the mention connections? Reply-To connections? In this sample data. What transformations are required? How would you filter the data? Use the actual data to ground your thinking. Feel free to actually write or modify the R code samples from the first two weeks to experiment. Some of you will be more comfortable doing this; some will be more comfortable addressing the question conceptually. This is OK.

Individual Presentations Informally by you!

Remembering Networks

Underpants Gnomes With much discourtesy from the US TV Program “South Park”

Underpants Gnomes

Addressing The Underpants Gnome Postulate

Discussion Post Read Response Classification Open Coding Axial Coding Identification of Coordination Events Time proximity Topical proximity Aggregation of Posts by Topic Weighted Network Analysis of Interactions Methodological Approach Weight Connections Based on Time Distance, Grouped By Topic and informed by analysis of time distance between posts. Identify Key Information Brokers 12

Network Transformation Activity

Week Six   Week 6: Sharing Data Preparation Results and Tools   Readings and Assignments Due:   Presentation involves sharing data with other people in a way that is visually insightful. Students will be asked to bring an example of a visualization of data from a website or news organization, and make a short presentation about what makes the visualization insightful.   Data Visualization Example Presentation   Chapters 4-7 of “The Anarchist in the Library: How the Clash Between Freedom and Control is Hacking the Real World and Crashing the System”.