Introduction to Data Science – INFO 480 – Drexel University’s

iSchoolSean 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: http://www.datascientists.net/what-is-data-science

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”

Motivation

Underpants GnomesMotivation

Addressing The Underpants Gnome

Postulate

12

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, GroupedBy Topic and informed by analysis of time distance between posts.

Identify Key InformationBrokers

Group Informatics Described

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”.