Lecture 5 cornell notes topic course itm 618 class 5

Lecture 5
Cornell Notes Topic: Course ITM 618
Class 5
Date Oct 2, 2019
Essential Question:
●
[check chapter]
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Read B1 - C34
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DUE: ASSIGNMENT 1 ON OCTOBER 25
Questions/Cues:
●
Notes

Pro-Tip ––––––
Highlight what’s important!
Recap:
Data Mining vs. Use of the Model
Training Data vs Test Data

Summary
●

Lecture 6
Data Cleaning and Visualization
Business Reporting and Data Visualization
Business
Reporting
● A written document that contains
information regarding business
matters
●
● Purpose: to improve managerial
decisions
●
● Source: data from inside and outside
the organization
●
● Format: text + tables +
graphs/charts
●
● Distribution: in print, email,
portal/intranet
● Data Acquisition
● Information Generation Decision
Making Process Management
●
● Report = Information Decision
●
● Report?
●
● Any communication artifact
prepared to convey specific
information
●
● A report can fulfill many functions
●
● To ensure proper departmental

functioning
●
● To provide information
●
● To provide the results of an analysis
●
● To persuade others to act
●
● To create an organizational
memory…
●
Types ● Metric Management Reports
●
● Help manage business performance
through metrics
●
● SLAs (Service Level Agreement) for
externals
●
● KPIs (Key Performance Indicator) for
internals
●
● Balanced Scorecard Type Reports
●
● Include financial, customer, business
process, and learning & growth
indicators
●
● Dashboard Type Reports
●
● Graphical presentation of several
performance indicators in a single
page using
● dials/gauges
●
● Using Visualization Techniques

Data
Visualizatio
n
● Data Visualization is the use of
visual representations to explore,
make sense of, and
● communicate data
●
● Related to information graphics,
scientific visualization, and
statistical graphics
●
● Often includes charts, graphs,
illustrations, …
History ● Data visualization can date back to
the second century AD
●
● Most developments have occurred in
the last two and a half centuries
●
● Until recently it was not recognized
as a discipline
●
● Today’s most popular visual forms
date back a few centuries

The First Pie
Chart
Created by
William
Playfair in
1801
● William Playfair is
● widely credited as
● the inventor of the
● modern chart, having
● created the first line
● and pie charts.
●

An Example
Gapminder
Chart:
Wealth and
Health of
Nations
●
The
Emergence
of Data
Visualizatio
n and Visual
Analytics
● Emergence of new companies
●
● Tableau, Spotfire, QlikView, …
●
● Increased focus by the big players
●
● MicroStrategy improved Visual
Insight
●
● SAP launched Visual Intelligence
●
● SAS launched Visual Analytics
●
● Microsoft bolstered PowerPivot with
Power View
●
● IBM launched Cognos Insight
●
● Oracle acquired Endeca

Visual
Analytics by
SAS
Institute
● SAS Visual Analytics Architecture
●
● Big data + In memory + Massively
parallel processing + ...