This is a review of case studies: from easy to complex, from standard to creative. We'll start with a classic churn prediction classification problem and move to another classic - demand prediction. Then we'll determine if and how much easy, standard model training can be automatized. Finally, we'll review a few more creative case studies like AI generated rap songs or neuro-styling of passport images. First presented by Rosaria Silipo (KNIME) at Strata New York, September 2019.

1. © 2018 KNIME AG. All Right Reserved.
Practicing Data Science
A Collection of Case Studies
Rosaria.Silipo@knime.com
@KNIME
Strata New York , September 24 2019

2. © 2018 KNIME AG. All Rights Reserved.
A few Words about me
2
• I am Rosaria Silipo
• Principal Data Scientist at KNIME
• At least 20 years analyzing data
• Generally interesting projects become Case Studies
• 23 case studies collected in a book
• Almost 24

3. © 2018 KNIME AG. All Rights Reserved.
A Classic Data Science Project
It always starts
with some data
…
3
Data
Preparation
Model
Training
Model
Optimization
Deployment
Data Manipulation
Data Blending
Missing Values Handling
Feature Generation
Dimensionality Reduction
Feature Selection
Outlier Removal
Normalization
Partitioning
…
Model Training
Bag of Models
Model Selection
Ensemble Models
Own Ensemble Model
External Models
Import Existing Models
Model Factory
…
Parameter Tuning
Parameter Optimization
Regularization
Model Size
No. Iterations
…
Performance Measures
Accuracy
ROC Curve
Cross-Validation
…
Files & DBs
Dashboards
REST API
SQL Code Export
Reporting
…
Model
Testing

4. © 2018 KNIME AG. All Rights Reserved. 4
Customer Intelligence: Churn Prediction

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Churn Prediction: The Problem
CRM System
Data about your customer
• Demographics
• Behavior
• Revenues
Model
• Churn Prediction
• Upselling Likelihood
• Product Propensity /NBO
• Campaign Management
• Customer Segmentation
• …
5

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Churn Prediction: The Training Workflow
6

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Churn Prediction: The Deployment Workflow
7
YouTube: “Building a basic Model for Churn Prediction with KNIME” https://www.youtube.com/watch?v=RHsO10q7e2Y
EXAMPLES Server: 50_Applications/18_Churn_Prediction

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Demand Prediction (Taxi)

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Demand Prediction: The Problem
10
How many taxi
do I need in NYC
on Wednesday
at 12:00?
How many customers?
How many kW?
How many diapers?

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Demand Prediction: The Training Workflow
11
Training set
Test set
R2 = 0.81

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Demand Prediction: Deployment
12
On Wednesday
at 12:00 we
need 13k taxis

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Automated Machine Learning
13

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Interaction Points
Business analysts will
simply access the
KNIME WebPortal
from any web
browser.

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Automated Machine Learning: Just how much?
15
https://towardsdatascience.com/automated-
machine-learning-just-how-much-7330fd4f882e

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Fraud/Anomaly Detection
16

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Fraud Detection: The Problem
17
Transactions
• Trx 1
• Trx 2
• Trx 3
• Trx 4
• Trx 5
• Trx 6
• …
Model
• Good
• Good
• Good
• Fraud
• Good
• Good
• …

17. © 2018 KNIME AG. All Rights Reserved.
Fraud Detection: without Fraud Examples – Auto-encoder
18
• Trained with Back-
Propagation on just
“normal” transactions
• If distance > threshold
=> possible fraud
distance

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Fraud Detection: without Fraud Examples

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Fraud Detection deployed
Suspicious Transaction

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Creative AI

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Creative AI: The Problems
• Free Text Generation
– Simulating a writing style
– Writing in different languages
– Providing an answer in a specific style
– Generating Candidates for Product Names
• Image Neuro-Styling
– Picasso
– Botero
– Matisse
– Manet
– …
22

22. © 2018 KNIME AG. All Rights Reserved.
Deep Learning LSTM Network
23
One-hotencodedcharacter
Characterprobabilities
e - s- u – o - h
o - u- s - e - <space>

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Creative AI: The Training Workflow
24

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Creative AI: The Deployment Workflow
25

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Creative AI: Deployment and Results
Yo!
This post is about generating free text
with a deep learning network
particularly it is about Brick X6,
Phey, cabe,
make you feel soom the way (I smoke good!)
I probably make (What?)
More money in six months,
Than what's in your papa's safe (I'm serious)
Look like I robbed a bank (Okay Okay)
I set it off like Queen Latifah
'Cause I'm living single I'm feeling cautious
I ain't scream when they served a subpoena
(Can't go back to jail)
I heard that he a leader
(Who pood, what to be f*****' up
The baugerout Black alro Black X6,
Phantom White X6 looks like a panda
Goin' out like I'm Montana
Hundred killers, hundred hammers Black X6,
Phantom White X6, panda
Pockets swole, Danny
Sellin' bar, candy
Man I'm the macho like Randy
The choppa go Oscar for Grammy
B**** n**** pull up ya panty
Hope you killas understand me
Hey Panda, Panda Panda,
Panda, Panda, Panda, Panda
I got broads in Atlanta
Twistin' dope, lean, and the Fanta
Credit cards and the scammers
Hittin' off licks in the bando
26
This License refers to version of the GNU General Public
License. Copyright also means copyright-bick,
Remade me any thing to his sword
To his salt and most hidden loose to be so for sings, but not in
a libutt of his matter than that shall be sure as will be soldye
As master compary, do not live in traitor.
Bless thy five wits!
-Kent
O pity!
Sir, where is the patience now,
That this is so far from the sea and some bidings to dismantle
So many folds of save and honest.
-Brabantio
I must not think the Turk of Cassio in the strange metting the
cribles of a charmer be the reviling of libe to say
That I can deceive him to the best advantage,
In her prophetic fairs of a little to presently at your powers;
whereof I thank you, sir.
-Albany
Gloucester, I will prove upancy of his sport and first accuriors
and guard and talking on the white.
-King Lear
Where are the thief?
Thou shalt never have the captains at the letter
To the Moor and thing we have not the better shall be sure as
worth if he be anger—
-Regan
I pray you, have a countend more than think to do a proclaim’d
there of my heart, Hot
The words save, honest, thief, master, traitor, and deceive
seem to fit the context. Notice also that the dialogue sprouting
from the start text of the license agreement interestingly
involves mainly minor, less tragic characters from the plays.
Caro amico ti scrivo così mi distraggo un po'E
siccome sei molto lontano più forte ti scriverò.
Da quella prima folla strana, che aveva preso il suo
nome, e di correre alla casa di don Abbondio, con un
viso bene di non poterci andar la casa del padre
Cristoforo, e gli disse che s'avvicinava all'uscio, e si
mise a sparse di corsa, e di stare a sé, verso la strada
di servizio, chiesto le parole che gli andavan
dall'altra stanza, e con la sua condizione de'
cappuccini, e di consigli ricerche di confidenza delle
gride, nel suo passaggio, se non pensava con una
certa ripugnanza a casa sua, che andavano a
scomparire in un campo di buone ragioni che
avevan potuto raccogliere i suoi pensieri, e di sopra
non senza interrogare, che la sua avventura aveva
fatto predicare, e con la forza d'un fatto come
fuggitive che aveva preso il suo nome, e di correre
alla casa di don Abbondio, con un cappuccino di
quella sorte, con un certo sospiro, alzando le sue
finestre, e le diede un'occhiata in carrozza. Si
vendano a metter nelle mani di chi era stato a
sedere sur una strada così fatta con le braccia in

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Image Neuro-Styling
27

27. © 2018 KNIME AG. All Rights Reserved.
Rosaria Neuro-Styling
28
original Picasso
Matisse
Caravaggio
BoteroRenoir
Notre Dame
TapestryManet
Magritte
Van Gogh
Artemisia

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Image Neuro-Styling: Workflow
29
Python
code
To Web
Browser
From Web
Browser

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KNIME Fall Summit 2019
November 5 – 8 at AT&T Executive Education and Conference
Center, Austin, Texas
• Tuesday & Wednesday: One-day courses
• Thursday & Friday: Summit sessions
Use the Promo Code
STRATA-NY-2019
by October 1 for Early Bird
Discount!
Register at
knime.com/fall-summit2019

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Free Book as a Thank You
Free Copy of e-book:
“Practicing Data Science.
A Collection of Case Studies”
from KNIME Press
https://www.knime.com/knimepress
with this code: STRATA-NY-2019
Expiration date:
Dec/31/2019 - 23:59
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KNIME Hub (https://hub.knime.com)
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You can find KNIMers here!
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• KNIME (www.knime.com)
• BLOG for news, tips and tricks(www.knime.com/blog)
• FORUM for questions and answers (tech.knime.com/forum)
• EXAMPLES SERVER for example workflows
• E-LEARNING COURSE (https://www.knime.com/knime-introductory-course )
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• s

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