2. • You're given the choice of three
doors: Behind one door is a car;
behind the others, goats.
• You pick a door, say No. 1
• The host opens another door, say
No. 3, which has a goat. He says
to you, "Do you want to pick door
No. 2?"
• Is it to your advantage to switch
your choice?
4. This a place where managers and
students of management can discuss
and debate best practices in the digital
economy, new developments in data
science and decision making. Ask
questions and get practicable
answers, and learn how to use data in
decision making.
Analytics for Management
https://www.linkedin.com/
groups/13536539
Introduction
5. • How do the authors define a "Data
Scientist"?
• What does a data scientist need to know
about data?
• What is meant by a "big data problem"?
• What knowledge and skills would you
associate with a Data Scientist?
• With advances in artificial intelligence,
do companies really need data scientists?
Data Scientist, the sexiest job of the 21rst Century ?
Introduction
6. • “The truth is, 9 out of 10 startups
fail.”
• Behind every statistic is an
opinion:
• What to measure and how
to collect the data
• How to interpret, visualize,
and present the results
• Where to distribute the
results and amplify the
reach
• How to finance the
analysis….
We are what we measure (2017)
Carine Carmy
Introduction
7. • More data has been created in the
past two years than in the previous
history of the human race
• « Strategists still confuse
technology with purpose … instead
of garnering context and empathy
to inform change…” - Brian Solis
• We have more and more data – but
does this lead to better decisions?
What is data?
Introduction
8. • From an objective point of view, information
refers to date in context that conveys
meaning to an individual.
• From a subjective point of view, we could
suggest that it’s the individual’s perspective of
the data that implies meaning.
• Given these definitions what meaning do
Wikileaks, Facebook or Whatapp have?
Assagne, The Conversation
Introduction
9. Categorical (nominal) Data
Data placed in categories according to
a specified characteristic
Categories bear no quantitative
relationship to one another
Examples:
- customer’s location (America,
Europe, Asia)
- employee classification (manager,
supervisor,
associate)
Ordinal Data
Data that is ranked or ordered according to
some relationship with one another
No fixed units of measurement
Examples:
- football rankings
- survey responses
(poor, average, good, very good, excellent)
Ratio Data
Continuous values and have a natural
zero point
Ratios are meaningful
Examples:
- monthly sales
- delivery times
Interval Data
Ordinal data but with constant differences
between observations
No true zero point
Ratios are not meaningful
Examples:
- temperature readings
- SAT scores
Introduction
11. • Structured data refers to data that can be easily represented in
textual/numeric form and stored in a database.
• Structured data is often logically organized around a data model or
data object.
• Such models permit companies to compare and aggregate data in
databases, datamarts and data warehouses.
Introduction
12. • Data is considered « non-structured » if we
can’t predefine its attributes and store it in
a table or data base
• Examples of this kind of data include press
clippings, videoclips, and songs
• In reality, this data isn’t « non-structured » -
its just that its attributes involve
« complex » relationships
http://jean.marie.gouarne.online.fr/bi.html
Structures
16. • Volume, velocity, variety, veracity
and value
• No longer just structured data
• Gathering data about relationships
rather than about people
• Quadratic relationships
• Data is no longer just data
Why do we have so much data? Introduction
17. • Scan the context
• Qualify the data at hand
• Choose the right method
• Transform data into action
The Basics
The Business Analytics Institute
https://baieurope.com
18. Tranformational “Memory” itself becomes
the product — the "experience"
• The Experience Economy
• Service economy – value comes from services
embedded in the product
• Pine and Gilmore argued that differentiation today
comes from creating “experiences”
• Starbucks, Michelin, Hermès, Apple
• Companies provide “stages”, managers are “actors”,
customers are active “spectators”
The Basics
19. Introduction
• Place - changes in geography, time, physical
resources and budget
• Platform – enriching how information is produced
and consumed
• People – modifying the frame of reference
• Practice - impacting the reality of management
Schlenker (2015)
22. • Segment the market by
needs…
• Qualify your target
segment
• Develop your products
or services to meet the
need
• Measure the results
Tristan Kromer
The Basics
23. • Davenport, T. and Patil, D.J., (2012) , Data Scientist,
the sexiest job of the 21rst Century, HBR
• Davenport, T. and Kirby, J., (2016) , Six Very Clear
Signs That Your Job Is Due To Be Automated , Fast
Company
• Fourquet, M. and Coursin, C. Le Miroir Digital ou la
nouvelle condition humaine numérique
• Grimes, S. (2008). Unstructured data and the 80
percent rule
• Schlenker, L. (2017). Data isn't just Data
Bibliography
Next Steps
Editor's Notes
Data Files
Delimited Text Files
XML Files
Log Files
Application-specific Files
Databases
Relational Databases
Graph Databases
Document Stores
Columnar Databases
Key-Value Stores
if you have n notes in a network, the number of possible connections is n times n minus one. So it's similar to n to the square.
It's a quadratic relationship between the number of individuals in a network and the data generated about their exchanges.
The Standard Form of a Quadratic Equation looks like this:
a, b and c are known values. a can't be 0.
"x" is the variable or unknown (we don't know it yet).
XML - Allows the delivery of messages and transfer of data through a series of standard tags; the World Wide Web Consortium released the first version in October 1998
SOAP - Calls and invokes Web services through HTTP; the W3C last month issued a draft for the next version of SOAP
WSDL - Describes the function and format of a Web service; proposed to the W3C in March by IBM, Microsoft and 23 other companies
UDDI Lists available Web services and their locations either on a public directory server or one within an organization; started by IBM, Microsoft and Ariba last September; second version released in June