techconnex think beyond bi: machine learning
TRANSCRIPT
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enabling modern enterprise
1
Think Beyond Business Intelligence for your organization – Machine Learning
Albert Hui, MBA, M.A.Sc., CSMData Economist
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05/03/2023 2enabling modern enterprise
About Me
2
• Co Founder of Data Economist, a data consulting firm based in Toronto.
• 18 years in data management consulting, business Intelligence, data warehousing and big data.
• Master in Engineering in the area of Artificial Intelligence • Big Data Architect, Data Scientist• Conference Speaker at IOUG, TOUG Collaborate since 2011• Technical editor on Oracle 12c Book. • M.A.Sc., MBA, University of Toronto• Toronto based • Twitter: @dataeconomist• Father of two twin boys
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Agenda3
Objective of this Session
What is machine learning?
BI vs ML
Models and Tools
Use Cases
What’s for the Organization?
Concluding Thoughts
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Objective of this Talk4
Introduction of Machine Learning
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History of Data &Machine Learning
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The Meaning of.....6
Data: Granular and raw and viewed as the
lowest level of abstraction from which information and knowledge are derived.
Information: Extracting data in order to effectively
derive value and meaning and establishing a relevant context, often selecting from many possible contexts.
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The Meaning of.....7
Intelligence: Individuals differ from one another in their ability to understand complex ideas, to adapt effectively to the environment, to learn from experience.
Wisdom:A deep understanding of people, things, events or situations, resulting in the ability to choose or act to consistently produce the optimum results with a minimum of time and energy.
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Gandalf
Legolas
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05/03/2023 9enabling modern enterprise
Build Knowledge thru Experience
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What is Machine Learning?
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Definition11
Computer systems that automatically learn or improve with experience (data).
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What is machine learning?12
Machine Learning is not new
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Common Machine Learning Applications13
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Machine learning: two major types14
Supervised Supervised learning is tasked with learning a function from
labelled training data in order to predict the value of any valid input. Common examples of supervised learning include classifying e-mail messages as spam, labelling Web pages according to their genre, and recognizing handwriting. Many algorithms are used to create supervised learners, the most common being neural networks, Support Vector Machines (SVMs), and Naive Bayes classifiers.
Unsupervised Unsupervised learning, is tasked with making sense of data
without any examples of what is correct or incorrect. It is most commonly used for clustering similar input into logical groups. It also can be used to reduce the number of dimensions in a data set in order to focus on only the most useful attributes, or to detect trends. Common approaches to unsupervised learning include k-Means, hierarchical clustering, and self-organizing maps
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Data mining vs machine learning15
Data Mining Focus on extracting patterns, unknown properties on the data. Marketing Surveillance Fraud Detection science discovery Discover items usually purchased together
Machine learning Focus on extracting prediction models, based on known
properties learned from the training data E-Mail spam classification News-topic discovery Building recommendations
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05/03/2023 16enabling modern enterprise
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“I skate to where the puckIs going to be,not where it has been”
-- Wayne Gretzky
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Let’s try it ourselves
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Quick Quiz18
In US, a 45year male, Around 150-180K income, Post Graduate Education, if he wants to buy a car. Which brand?
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Quick Quiz19
In US, a 45year male, 3 children, 180K income, Graduate School Education, if he wants to buy a car. And he lives in Texas, then which brand?
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Quick Quiz20
In US, a 45year male, 3 children, Graduate School Education, making $60K/year. If he wants to buy a car. Then which brand?
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BI vs. ML
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Remember this?22
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Make a decision
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BI Reports ….24
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Key factors of Successful Enterprises25
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Learning Enterprise27
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Decide – Learn - Experience29
Make better Builds
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How do we keep up changes?30
When the winds of change blow,some people build walls and others build windmills
-- Chinese proverb
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Models & Tools
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Main Models33
Classification Regression
Clustering
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Machine Learning Components34
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Machine Learning : Data35
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Modelling Concept (Dimensionality Reduction)
SeasonsWeather
Sal
es
Project three dimensional space into two dimensional space
Principal Component Analysis
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Modelling Concept (generalization) 37
x
y Is it a better model?
31
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210 xxbxbxxbxbxbby
)min(0
ii
n
i
b
Objective Function
Regularization
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Build the model38
Learn a model from a manually trained dataset Predict the class of an unseen object based on features
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Build the model: iterative process39
There is no single answer/model to your questions. It is often based on trial and error.
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Some Models Available40
Multiple Variable Regression Decision Tree/Random Forrest Logistic Regression Neural Network Fuzzy Logic Support Vector Machine Bayesian Network K-means KNN – Knearest Neigbors
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Tools 41
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Use Case #1
Ad Click-thru rate Prediction using Machine Learning
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Clickstream – Case Demo44
An Asia based Hotspot Wi-Fi provider Revenue Model: Advertising
Advertisers place ads before users can connect to Wifi
Data Survey data: Users are required to fill a survey before
logging in. Click logs including Ad click-through
Data Size: 12GB+ compressed a day. 15M signed on and 6% click-thru a day.
Problem definition: click-through rate is too low
Demo
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Preference Matching : Clustering 45
Matching
Millions of People Thousands of Ads
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Logistic Regression46
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Ad: n-dimensional vectors Each Ad is represented as a vector of
customers who have clicked the ads. Probability of Ad clicked based on
how close with individual Ad vectors.Vector for customers who clicked and viewed burger king
Vector for customers who clicked and viewed wholefood
Vector for an signed on customer
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Improvement48
Click-thru rate increased from 6% to 13% first year and 19% next
year.
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Use Case #2
A Major Canadian retailer
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Data Science – First Question50
What are the customers saying?
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Listen to Customers51
install.packages("twitteR")
rdmTweets <- userTimeline("rdatamining", n=100)
install.packages("ROAuth")install.packages("RCurl")install.packages("tm")install.packages("SnowballC")install.packages("wordcloud")twitCred <- OAuthFactory$new(consumerKey="rp4fHagxYdsdfoSMR3FiOg", consumerSecret="webKiy93XZZDLQcBJzxHw64regfgZvbivJIpLctYcPKY", requestURL="https://api.twitter.com/oauth/request_token", authURL="https://api.twitter.com/oauth/authorize", accessURL="https://api.twitter.com/oauth/access_token")
wordcloud(d$word, d$freq, min.freq=3)
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NPL : Sentiment Analysis 52
weather
waiting
Olympics
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Words PopularityOlympics 0.9Winter 0.9Customer Service 0.85Computer 0.85Annoy 0.85Auto Oil 0.7horrible 0.7line 0.7wait 0.7Found 0.65traffic 0.6walmart 0.6good 0.6back 0.57Target 0.56Parking 0.56sick 0.55
Association AssociationGame thanks
Olympics weatherwait productwait slowAsile wait
Engine pricewait stand
standcustomer Service
time findline stand
target weatherphone find
Olympics familyworst goodfind parking
target findservice slow
dictCorpus <- myCorpus# stem words in a text document with the snowball stemmers, # which requires packages Snowball, RWeka, rJava, RWekajarsmyCorpus <- tm_map(myCorpus, stemDocument)# inspect the first three ``documents"inspect(myCorpus[1:3])
myCorpus <- tm_map(myCorpus, stemCompletion, dictionary=dictCorpus)
inspect(myCorpus[1:3])
myDtm <- TermDocumentMatrix(myCorpus, control = list(minWordLength = 1))
#inspect(myDtm[266:270,31:40])print(myDtm)
findFreqTerms(myDtm, lowfreq=2)
findAssocs(myDtm, 'Olympics', 0.10)findAssocs(myDtm, 'service', 0.10)
NPL : Sentiment Analysis
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Improvements54
Improve the customer service line
Increase Customer Service Staff on Sat.
Reduce Wait Time
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Data Science – What Impact Sales55
Product
Sales
Weather
StoreDemograp
hic
Product Review
Inventory
On-line Clickstrea
m
Competitors
Store Size &
Attributes
Product Price
Environmental Data
Environic Data
Site, ForumReview, twitter
Store Inventory
Site Clickstream
Marketing Analysis
DealerManagement
Promotion
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Data Science – What Impact Sales56
Multivariate Linear Regression
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Use Case # 3
Cash flow projectionfor a major bank
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05/03/2023 58enabling modern enterprise
Deposit Saving : Asset Liability Modeling 58
Asset Allocation Optimization
1. Predicting cash balance for customer segments.
2. Optimizing lending and asset allocation.
3. Minimize liquidity risk.4. Enhance pricing strategy.5. Manage better customer
relationship.
Every 10K deposit
10d 20d 1m …... 6m 1y 2 y
Survival modelfor Cash flow projectionbased on customerprofile
Retirees 65+
Single Saver
40 with kids
Single spender
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Use Case #3: Benefits59
Estimated 100+ Millions per year revenue opportunity
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What’s for your organization?
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05/03/2023 61enabling modern enterprise
Enhance your BI Reports with prediction capability
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Provide predictive capability in your BI Reports.
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Decision Architecture62
models
businessapplications
BI Reports
Feedback
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Decision as a Service 63
Make betterBuilds
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Concluding Thoughts:64
In this connected age, what is the most
disruptive?
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Customers are actually more disruptive than technology
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05/03/2023 66enabling modern enterprise
Decisions Made by IoT
To create the experience, decisions need to be made where the events happen.
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05/03/2023 67enabling modern enterprise
Thank you!67
Albert Hui, MBA, MASc., P.Eng, CSM
Data Economist Inc.,Email: [email protected] me at Twitter: @dataeconomist